JP4580515B2 - Real estate appraisal system, storage medium storing computer software program for making computer system assist real estate appraisal, and real estate appraisal method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a real estate appraisal assistance system and the like for providing a price calculation service for real estate on the Internet, for example.
[0002]
[Prior art]
In general, land price appraisals are conducted by expert appraisers who examine past transaction examples, land price announcements, land price surveys, route prices, etc., and analyze the disparity between the appraisal point and these land price information. Based on this, land prices are derived.
[0003]
For this purpose, it is necessary to collect such land price information in advance, and it is necessary for the appraiser to determine whether the local price information can be compared with the appraisal target point.
[0004]
[Problems to be solved by the invention]
However, materials such as land price announcements and land price surveys need to be kept for at least several years in order to know the past changes, and the amount is enormous. Also, it may take time to investigate all materials. Furthermore, the collection and extraction of land price information is very laborious and tedious and difficult.
[0005]
Therefore, conventionally, for example, as disclosed in Japanese Patent No. 2505142, a device for automating real estate appraisal has been made.
[0006]
The invention disclosed in this publication is based on the fact that land price information of a plurality of points is stored in advance in a storage means in association with position coordinates on a map, and an appraisal target point is designated on a map displayed on a display screen. The appraisal target point is displayed on the display screen, and an appropriate number of nearest points that are close to the appraisal target point are searched from the plurality of land price information points, and the searched nearest The location and land price information of the point is displayed as the nearest point information at the corresponding position coordinates on the map of the display screen, and the calculation formula is stored in advance in the storage means so as to capture the land price information of the appropriate number of nearest points. The land price of the appraisal target point is determined based on the calculation result by the calculation formula, the land price is determined, and the land price is displayed on the display screen. Land price book It is a method. "
[0007]
According to this method, an appropriate number of land price information (closest points) is extracted based on the criteria of “closer based on the distance from the appraisal target point”, and the land price of the appraisal target point is calculated based on the land price information. Can be derived.
[0008]
However, when collecting land price information based only on the distance from the point of appraisal, land price information with different use areas may be extracted. In this case, the reliability of the calculated land price is quite high. Lower. In addition, it is conceivable to narrow down the use area in advance, but if there is little land price information in the same use area in the surrounding area, land value information that is considerably distant from the distance will be extracted, and the reliability of the appraisal is also low. Become.
[0009]
In general, real estate prices are highly individual. For example, even in the same area, the price will vary greatly depending on the topography, scale, contact situation, etc., so as in the above patented invention, individuality is judged in the system, and finally the point to be judged Deriving up to the price requires the user to be specialized, leading to limited users, and results in poor reliability when the user's expertise is low.
[0010]
This invention is made | formed in view of the above situations, and it aims at providing the real estate appraisal assistance system which can provide a more reliable appraisal service.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, according to a first main aspect of the present invention, map database storage means for storing a map database in which land price information and city planning information at a plurality of points are associated with position coordinates on a map; Based on the fact that the appraisal target point is designated on the map, the use area acquiring means for acquiring the use area of the appraisal target point from the city planning information, and the use area acquired by the use area acquiring means. A land price information extracting means for extracting land price information comparable to the appraisal target point, and a standard price calculating means for calculating a standard price of the appraisal target point based on the land price information extracted by the land price information extracting means; A real estate appraisal assistance system is provided.
[0012]
According to such a configuration, since the use area is automatically acquired by designating an arbitrary point on the map, it is possible to extract appropriate land price information based on the use area. A highly standard price can be calculated. It should be noted that what is output in the present invention is a standard price, that is, a land price level, and does not directly calculate a property price with strong individuality. As a result, it becomes possible to provide a versatile and highly reliable service.
[0013]
The system further includes route price acquisition means for acquiring the road price of the road adjacent to the appraisal point based on the user specifying the appraisal target point on the map, and the land price information extraction It is desirable that the means extracts only land price information whose difference from the road price is within a predetermined range based on the road price. According to such a configuration, it is possible to extract land price information having a high possibility of comparison based on the line price of the appraisal target point.
[0014]
In addition, it is preferable that the land price information extracting unit extracts only land price information within a predetermined range based on the appraisal target point. In this case, if the number of land price information within a predetermined range from the appraisal target area is equal to or less than the predetermined number, the land price information within a predetermined range wider than the predetermined range may be extracted. More desirable.
[0015]
According to such a configuration, it is possible to extract land price information with high comparability by extracting land price information within a predetermined range. And since the range was expanded when the number of land price information extraction was small, the number of land price information can be kept more than fixed.
[0016]
Further, the land price information extraction means searches the land price information for a plurality of search use areas including the use area acquired by the use area acquisition means, and extracts the searched land price information in association with the use area. It is desirable. According to such a configuration, since it is possible to search in a plurality of use areas appropriately designated as land price information for calculating the price of the appraisal target point, there is little land price information of the same use area around Even so, it becomes easy to secure a certain number of land price information.
[0017]
Further, in this case, the land price information extracting means displays the extracted land price information for each use area, and when the searched land price information is a predetermined number or more, the land price of the use area acquired by the use area acquiring means. It is preferable to display only information. According to such a configuration, the land price information of the same use area as the use area of the appraisal target point is preferentially displayed, which increases convenience for the user. Moreover, there is an effect that it is possible to prevent display of more land price information than necessary.
[0018]
Further, the standard price calculation means of this system is for causing the standard price of the appraisal point to be calculated using the land price information selected by the user among the land price information extracted by the land price information extracting means. It is desirable. According to such a configuration, only land price information that is judged to be suitable as land price information when the user calculates land prices is used for the calculation, so other land price information can be excluded, and land price calculation Reliability is improved.
[0019]
Also, in this system, the standard price calculated by the standard price calculation means and the information of the appraisal point are transcribed, and the calculation means for the user to input the individual information and calculate the target real estate price is given to the user. It is desirable to have calculation means transmitting means for transmitting. According to such a configuration, the final property price assessment with strong individuality can be performed at the user's own risk outside this system, so the objectivity and trust of the service using this system There is an effect that sex is secured.
[0020]
According to a second main aspect of the present invention, there is provided a storage medium storing a computer software program for causing a computer system to assist real estate appraisal, wherein the software program is stored at a plurality of points. Map database storage means for storing a map database in which land price information and city plan information are associated with position coordinates on the map, and based on the fact that the appraisal target point is designated on the map, The use area acquisition means for acquiring the use area of the appraisal target point, the land price information extraction means for extracting the land price information comparable to the appraisal target point based on the use area acquired by the use area acquisition means, Standard price calculation means for calculating a standard price of the appraisal point based on the land price information extracted by the land price information extraction means Storage medium is provided, wherein the door.
[0021]
According to such a configuration, the same function as that of the real estate appraisal assistance system according to the first main aspect can be achieved.
[0022]
Furthermore, according to the third main aspect of the present invention, the appraisal target point is designated on the map database in which the land price information and the city plan information of a plurality of points are associated with the position coordinates on the map. A step of acquiring a use area of the appraisal target point from the city planning information, a step of extracting land price information comparable to the appraisal target point based on the use area acquired by the use area acquisition means, And a step of calculating a standard price of the appraisal point based on the land price information extracted by the land price information extracting means.
[0023]
According to such a configuration, the same function as that of the real estate appraisal assistance system according to the first main aspect can be achieved.
[0024]
Other features and remarkable effects of the present invention can be understood more clearly from the following description of the embodiments of the present invention and the accompanying drawings.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0026]
(Basic configuration)
As shown in FIG. 1, a real estate appraisal assistance system 1 according to an embodiment of the present invention is provided in a server device 2 of a real estate appraisal service company and is connected to an Internet network 3, and is a terminal of a user 4 Information is exchangeable with the device 5 (for example, a personal computer). And this system 1 is comprised so that the request | requirement of the online real estate appraisal assistance service from the user 4 through the terminal device 5 may be processed according to the request | requirement content.
[0027]
FIG. 2 is a block diagram showing the real estate appraisal assistance system 1.
[0028]
As shown in this figure, this system has a data storage unit 15 and a program storage unit 16 connected to a bus 14 to which a CPU 10, a RAM 11, an input / output device 12, a modem 13, and the like are connected.
[0029]
(Data storage)
The data storage unit 15 includes a map database 19 in which land price information 17 and city planning information 18 are associated, and a search use area designation table 20 that is referred to in order to determine a use area when searching for comparable land price information. In addition, a detailed land price information database 21 for storing detailed information on the local price information and a self-assessment program 22 for allowing the user to perform self-assessment are stored.
[0030]
Specifically, the map database 19 is configured such that the land price information 17 and the city planning information 18 have coordinate positions and can be superimposed and displayed on a house map (see FIG. 9). This house map is composed of a plurality of layers in order to perform display according to a predetermined scale.
[0031]
On the other hand, the land price information 17 includes land price announcement data, land price survey data, private evaluation data, and auction price data. These land price announcement data, land price survey data, private evaluation data, and auction price data include at least the coordinate position and the spot number of each spot.
[0032]
Further, the city planning information 18 includes the use area (type of the first type low-rise residential area, commercial area, etc.), use area boundary position data (boundary coordinate position of the use area), and the occupancy rate and floor area ratio on the map. Consists of attribute data.
[0033]
Further, the land price detailed information database 21 stores detailed information such as the spot number, price point, price point, use area, building coverage ratio, floor area ratio, and distance from the station included in the land price information 17. The spot number in the land price detailed information database 21 is associated with the spot number in the land price information 17. Therefore, by designating a specific point on the house map, the detailed information in the detailed land price information database 21 can be referred to via the point number.
[0034]
Furthermore, the search use area designation table 20 is a table that is referred to when determining land price information to be searched, such as shown in FIG. In this example, for example, when the application area of the appraisal target point is “commercial”, (1) commercial is selected as the first area to be searched, and (1) commercial (2) close commercial, It means that (1) commerce (2) close commerce (3) semi-dwelling is selected as the third area.
[0035]
The self-assessment program 22 is transmitted to the user, and is specifically a spreadsheet program as shown in FIGS. In this spreadsheet program, the standard price obtained by this system and the attribute information of the appraisal point are embedded in advance (columns indicated by black circles), and the user inputs other individual information, so that the appraisal point Self-assessment can be performed. The function of this self-assessment program will be described in detail later.
[0036]
(Program storage)
On the other hand, in addition to the main program (not shown), as shown in FIG. 2, the program storage unit 16 includes a map search / display unit 25, a use area acquisition unit 26, and a road surface road price acquisition unit for an appraisal target point. 27, a search use area acquisition unit 28, a land price information extraction unit 29, a land price information selection unit 30, a standard price calculation unit 31, a standard price output unit 33, and a self-assessment program transmission unit 32 are stored. Yes.
[0037]
These components are actually composed of a plurality of programs or subroutines, and are called and executed on the RAM by the CPU. Hereinafter, detailed functions and operations of these components will be described with reference to flowcharts shown in FIGS. 6 to 8 and screen display examples shown in FIG.
[0038]
First, the map retrieval / display unit 25 retrieves a house map from the map database 19 based on a user's designation, and shapes it into a format that can be displayed on the terminal 5 (browser) of the user 4. Function to send and display. The range of the map to be displayed (searched) can be specified from, for example, “address”, “station name”, and “target (hospital etc.)”. FIG. 8 shows an example of a map database search screen by “address”. On this screen, by specifying the prefecture 35, the municipality 36, the town chome 37, the chome 38, the street address 39, and the number 40, a map database with a scale corresponding to the designated level of detail is retrieved from the data storage unit 15. Are displayed as shown in FIG.
[0039]
And on this map, the point which a user wants to perform real estate appraisal is designated on a screen using a mouse etc., for example, and the coordinate of the point is acquired. In actuality, the display of the residential map of the point and the acquisition of coordinates are performed by the map search / display unit 25 transmitting and executing a map display program such as a JAVA applet on the user's terminal. .
[0040]
FIG. 10 is an example of a confirmation screen for executing real estate appraisal. On the map, a black circle point 42 is an identification target point designated by a mouse or the like. For this appraisal target point, the execution button 43 is pressed when the real estate calculation process by this program is started. By pressing the execution button 43, the real estate price calculation process (S1 to S7) shown in FIG. 6 is executed. Hereinafter, this calculation process will be described.
[0041]
When this process is started, first, the use area acquisition unit 26 acquires the use area of the appraisal target point based on the coordinates of the appraisal target point on the map acquired by the map search / display unit 25. (Step S1). Specifically, by accessing the city planning information associated with the map database, the use area of the point and its attributes are acquired.
[0042]
FIG. 11 is a screen showing the execution result. In this example, as shown by 45 in the figure, the appraisal target point is “Near Sejo ○ Chome × No. In Setagaya-ku, Tokyo”, the use area is “a kind of low-rise residential area”, and its attribute is “ The building coverage ratio is 40%, the floor area ratio is 80%, and the nearest station is about 300m.
[0043]
Next, the road surface price value acquisition unit 27 for the appraisal target point calculates the road value of the road facing the appraisal target point from the land price information 17 based on the coordinates acquired by the map search / display unit 25. Obtain (step S2 in FIG. 6). In the example of FIG. 11, the route land prices of the routes (1) to (4) that are supposed to face the appraisal target point 42 are acquired and displayed in the column indicated by 46 in the figure (in the other paragraphs and drawings, (Each number in the above-mentioned line prices “(1) to (4)” is not written in parentheses but is written in circled numbers) .
[0044]
On the other hand, the search use area acquisition unit 28 applies the use area of the appraisal target spot acquired by the appraisal target spot use area acquisition unit 26 to the search use area determination table 20 to search for the use target area. Are determined (step S3). For example, in the case where the use area of the appraisal target point is a first-class low-rise residential exclusive area (1 low-tech exclusive area), as shown in FIG. 1 ▼ 1 Technical College, “Second Area” 49 1) 1 Technical College 2) 2 Technical College 3) 1 Junior College 4) 2 Junior College, “3rd Area” 50 1) 1 Low ▲ 2 ▼ 2 専 3 １1 専 4 ２2 専 5 １1 residence ６6 ２2 residence ７7 Associate residence is selected. The determination of the use area for search is performed in order to keep the number of land price information to be extracted at a predetermined number or more from the beginning, as will be described later.
[0045]
Next, the land price information extraction unit 29 is configured to use the land price detailed information database 21 based on the road price acquired by the road price acquisition unit 27 and the search use area determined by the search use area acquisition unit 28. Extract detailed information from Specifically, on the screen shown in FIG. 11, check the route price that the user considers appropriate as a standard for extracting the comparative example, and press the land price information extraction button 47 to perform the following procedure. Is executed.
[0046]
FIG. 7 is a flowchart showing a procedure for extracting the land price information.
[0047]
When the land price information extraction procedure is started, first, in step S8, land price information within a radius of 2 km from the appraisal target point, within a front road price value of ± 30% and whose use area belongs to the first area is the land price information. Retrieved from the information table 21. If the searched land price information is 5 or more (step S9), it is determined whether 20 or more locations have been searched only in the first area (step S10), and if 20 or more locations are searched, the first area Only the land price information is displayed (step S11).
[0048]
On the other hand, if 20 places are not reached in the first area alone, it is determined whether or not 10 places or more have been searched in the second area (step S12). Only is displayed (step S13). On the other hand, if ten or more locations are not searched in the second area, all the land price information in the third area is displayed (step S14).
[0049]
On the other hand, if it is determined in step S9 that the search result of the third area does not reach five places, the search range is expanded to a radius of 4 km in step S15, and land price information whose price exceeds the upper limit by 100% or more is obtained. The search is performed by removing the land price information below the lower limit by 50% or more. When one or more land price information is found (step S16), the steps SS10 to S14 are executed. However, if the search result is less than one place, the search is stopped (step S17).
[0050]
The land price information searched in this step is displayed on the screen shown in FIG.
According to such a process, it is possible to determine a plurality of appropriate use areas as land price information for calculating the price of the search target point, and to perform a search on this, so the land price information of the same use area around Even if there are few cases, it becomes easy to secure a certain number of land price information. Moreover, since land price information of the same use area as the use area of the appraisal target point is preferentially displayed, convenience for the user is increased. Moreover, there is an effect that it is possible to prevent display of more land price information than necessary.
[0051]
Next, the user arbitrarily selects land price information to be used for standard price calculation from the displayed land price information, and inputs a date for price calculation in the field indicated by 50 in the figure, and then executes a land price calculation execution button 51. By pressing, the standard price calculation unit 31 calculates the standard price of the appraisal target point based on the selected land price information. Specifically, the standard price is calculated by “standard price = land price information price × time correction rate × route price ratio”.
[0052]
The calculation result 53 is shown in FIG.
[0053]
Further, the calculation result is output by the standard price output unit 33 as shown in FIG. 14, FIG. 15, and FIG. In particular, as shown in FIG. 16, the output unit 33 displays a residential map of the appraisal area at a predetermined scale by pressing a line price display residential map button 60, and an announcement / example position map button 61 is displayed. The point adopted by being pushed is displayed superimposed on the house map, and the aerial photograph 62 is pushed to display an aerial photograph of the appraisal target area at a predetermined scale.
[0054]
According to such a procedure, since only land price information that the user feels appropriate as land price information when calculating land prices is used for calculation, it becomes possible to exclude other land price information, The reliability of land price calculation is improved.
[0055]
In addition, the land price calculated in this way is a standard price, that is, a land price level, and is not an individual land price of the appraisal target point. Individual price calculation is very strong in individuality, so it is dangerous to let an amateur or machine perform it. Therefore, in this system, only the output of the land price level assessment table shown in FIGS. 14 to 16 is intentionally limited. However, this system provides a self-assessment program that allows each user to make a final assessment at their own risk.
[0056]
That is, by pressing the self-assessment button 54 on the screen shown in FIG. 13, the self-assessment program shown in FIGS. 4 and 5 is transmitted to the user terminal. In this program, the calculation results are posted in the columns indicated by black circles, and the target property price is automatically calculated by the spreadsheet function of this program by the user filling in the other columns based on the individuality of the literature. To be calculated.
[0057]
According to such a configuration, the final property price assessment with strong individuality can be carried out at the user's own risk outside this system, so the objectivity of services using this system is guaranteed. There is an effect.
[0058]
Note that what has been described above is merely one embodiment of the present invention, and it goes without saying that various modifications can be made without departing from the scope of the invention.
[0059]
For example, in the above-described embodiment, the service is provided to the user terminal using the Internet. However, the present invention can also be realized on a computer system connected to an in-house LAN or a stand-alone computer system. Moreover, each said component is not limited to what is performed on a server, The one part or all part may be performed on a user's terminal.
[0060]
【The invention's effect】
According to the configuration described above, it is possible to provide a real estate appraisal assistance system and the like that can provide a more reliable appraisal service.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
FIG. 2 is a functional block diagram showing a real estate appraisal assistance system.
FIG. 3 is a diagram showing a search use area determination table.
FIG. 4 is a diagram showing a self-assessment program.
FIG. 5 is also a diagram showing a self-assessment program.
FIG. 6 is a flowchart showing an operation example of this system.
FIG. 7 is a flowchart showing a land price information extraction procedure.
FIG. 8 is a diagram showing an example of a screen for designating a map display range.
FIG. 9 is a diagram showing a map display example.
FIG. 10 is a diagram showing land price calculation points.
FIG. 11 is a diagram showing a use area acquisition result screen.
FIG. 12 is a diagram showing an example of a land price information extraction result screen.
FIG. 13 is a diagram showing a standard price calculation result screen.
FIG. 14 is a diagram showing a standard price assessment table.
FIG. 15 is a diagram showing a standard price assessment table.
FIG. 16 is a diagram showing a standard price assessment table.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Real estate appraisal assistance system 2 ... Server apparatus 3 ... Internet network 4 ... User 5 ... Terminal apparatus 10 ... CPU
11 ... RAM
10 ... Step SS
DESCRIPTION OF SYMBOLS 12 ... Input / output device 13 ... Modem 14 ... Bus 15 ... Data storage unit 16 ... Program storage unit 17 ... Land price information 18 ... City plan information 19 ... Map database 20 ... Search use area designation table 21 ... Land price detailed information database 22 ... Self-assessment program 25 ... map display / coordinate acquisition unit 26 ... appraisal target point use area acquisition unit 27 ... appraisal target point route price acquisition unit 28 ... search use region acquisition unit 29 ... land price information extraction unit 30 ... land price information selection unit 31 ... Standard price calculation unit 32 ... Self assessment program transmission unit 42 ... Appraisal point 43 ... Execution button 47 ... Land price information extraction button 51 ... Land price calculation execution button 54 ... Self assessment button

Claims (24)

A real estate appraisal assistance system that displays a map on the user's terminal, acquires the appraisal target point designated by the user on the map, and calculates the standard price of the appraisal target point,
A map in which land price announcement data of a point indicated by predetermined position coordinates on the map, land price information including a point number of the point, and use area information including a use area are stored in association with the position coordinates on the map. A database,
Detailed information of the point including the point in time, price, and use area of the specific point on the map, and a land price detailed information database stored in association with the point number;
When the appraisal target point is designated on the map displayed on the terminal, the use area acquiring means for specifying the appraisal target point coordinates and acquiring the use target area of the appraisal target point from the map database When,
The computer searches the land price detailed information database based on the use area acquired by the use area acquisition means, identifies a point that can be compared with the appraisal point in the vicinity of the appraisal area, and the detailed information. Land price information extracting means for extracting
Based on the extracted detailed information of the comparable point, the computer calculates the standard price of the point of appraisal based on the land price information of this point, the price point and land price announcement data, and the land price announcement data of the point of appraisal And a means for displaying the calculated standard price of the appraisal target point on the terminal,
The use areas are respectively associated with a plurality of areas for collecting a plurality of types of use areas, and each of the areas is the same type of use as the use area of the appraisal target point acquired by the use area acquisition means. A first area including only a region, and a second area including a use area included in the first area and a use area of a type different from the use area,
The land price information extracting means includes:
From the land price detailed information database, the use area included in the first area within the predetermined distance range centered on the appraisal target point (use area of the appraisal target point acquired by the use area acquiring means) The same type of use area) and identify the comparable points in the same use area ,
In the case where the number of the identified comparable points is equal to or less than a predetermined number , a plurality of use areas (in the second area) within the predetermined distance range centered on the point to be identified identify the comparable point in the application differs from the area and the application area type of zoning) in the same application areas included in the first area,
Detailed information on the identified comparable points is extracted from the land price detailed information database. Real estate appraisal assistance system, characterized in that: In the real estate appraisal assistance system according to claim 1,
The land price information includes the road price of the tangential road at each point,
When the user designates an appraisal point on the map by the user, a route price acquisition means for acquiring the applicant road price of the appraisal point from the land price information based on the position coordinates of the appraisal target point Further comprising
The land price information extracting means is a real estate appraisal characterized in that the computer extracts, from the land price detailed information database, detailed information whose difference from the road price is within a predetermined range based on the road price. Auxiliary system. In the real estate appraisal assistance system according to claim 1,
The real estate appraisal system, wherein the land price information extracting means is a computer for extracting detailed information within a predetermined range set in advance based on the appraisal target point from the land price detailed information database. In the real estate appraisal assistance system according to claim 3,
The land price information extracting means, when the number of comparable land price information within a predetermined range from the appraisal target point is equal to or less than a predetermined number, the detailed detailed information within a predetermined range wider than the predetermined range Is extracted from the land price detailed information database. In the real estate appraisal assistance system according to claim 1,
The real estate appraisal system characterized in that the land price information extracting means displays detailed information extracted from a land price detailed information database on the terminal by use area. In the real estate appraisal assistance system according to claim 1,
The land price information extraction means extracts only the detailed information of the use area acquired by the use area acquisition means from the land price detailed information database and displays it on the terminal when the detailed information retrieved is a predetermined number or more. Real estate appraisal assistance system characterized by being a thing. In the real estate appraisal assistance system according to claim 1,
The land price information extracting means is a computer for calculating a standard price of the appraisal point using the detailed information selected by the user among the detailed information extracted from the land price detailed information database. Real estate appraisal assistance system as a feature. In the real estate appraisal assistance system according to claim 1,
The standard price calculated by the standard price calculation means and the detailed information of the appraisal target point are displayed on the terminal of the user, the user is made to input predetermined individual information, and the target real estate price is calculated based on the individual information Calculating means for
A real estate appraisal assistance system comprising means for displaying the calculation result on a user terminal. Stores a program that is executed by the real estate appraisal assistance system that displays a map on the user's terminal, acquires the appraisal point designated by the user on the map, and calculates the standard price of the appraisal point A medium,
The real estate appraisal assistance system
A map in which land price announcement data of a point indicated by predetermined position coordinates on the map, land price information including a point number of the point, and use area information including a use area are stored in association with the position coordinates on the map. A database,
Detailed information of the point including the price point, price, and use area of the specific point on the map has a land price detailed information database stored in association with the point number,
This program
Use area acquisition step of acquiring a use area of the appraisal target point from the map database by specifying coordinates of the appraisal target point when the computer designates the appraisal target point on the map displayed on the terminal When,
The computer searches the detailed land price information database based on the use area acquired in the use area acquisition step, identifies points that can be compared with the appraisal spot around the appraisal area, and provides detailed information Land price information extraction process to extract
Based on the extracted detailed information of the comparable point, the computer calculates the standard price of the point of appraisal based on the land price information of this point, the price point and land price announcement data, and the land price announcement data of the point of appraisal And displaying the calculated standard price of the appraisal target point on the terminal,
The use area is associated with a plurality of areas for collecting a plurality of types of use areas, and each of the areas is the same type of use as the use area of the appraisal point acquired in the use area acquisition step. A first area including only a region, and a second area including a use area included in the first area and a use area of a type different from the use area,
The land price information extraction step includes:
From the land price detailed information database, a use area included in the first area within a predetermined distance range centered on the appraisal target point (use area of the appraisal target point acquired in the use area acquisition step) The same type of use area) and identify the comparable points in the same use area ,
In the case where the number of the identified comparable points is equal to or less than a predetermined number , a plurality of use areas (in the second area) within the predetermined distance range centered on the point to be identified identify the comparable point in the application differs from the area and the application area type of zoning) in the same application areas included in the first area,
Detailed information of the specified comparable points is extracted from the land price detailed information database. The storage medium according to claim 9,
The land price information includes the road price of the tangential road at each point,
In the program, when an appraisal target point is designated on the map by the user, the program acquires the road valency of the contact road of the appraisal target point from the land price information based on the position coordinates of the appraisal target point. It further has a route price acquisition process,
In the land price information extracting step, the computer extracts detailed information whose difference from the road price is within a predetermined range from the land price detailed information database on the basis of the road price. . The storage medium according to claim 9.
In the land price information extracting step, the computer extracts detailed information within a predetermined range set in advance based on the appraisal target point from the land price detailed information database. The storage medium according to claim 11, wherein
In the land price information extracting step, when the number of comparable land price information within a predetermined range from the appraisal target point is equal to or less than a predetermined number, the detailed information that can be compared within a predetermined range wider than the predetermined range. Is extracted from the land price detailed information database. The storage medium according to claim 9.
In the land price information extracting step, the computer displays detailed information extracted from the land price detailed information database on the terminal by use area. The storage medium according to claim 9.
In the land price information extracting step, when the detailed information retrieved is a predetermined number or more, the computer extracts only the detailed information of the use area acquired in the use area acquiring process from the land price detailed information database and displays it on the terminal. A storage medium characterized by being a thing. The storage medium according to claim 9.
In the land price information extraction step, the computer calculates a standard price of the appraisal point using the detailed information selected by the user among the detailed information extracted from the land price detailed information database. Feature storage media. The storage medium according to claim 9.
The standard price calculated in the standard price calculation step and the detailed information of the appraisal target point are displayed on the user's terminal, the user is made to input predetermined individual information, and the target is based on the input individual information Has a calculation process to calculate the real estate price,
A storage medium comprising a step of displaying the calculation result on a user terminal. There is a method executed by the real estate appraisal auxiliary system that displays a map on the user's terminal, acquires the appraisal target point designated by the user on the map, and calculates the standard price of the appraisal target point,
The real estate appraisal assistance system
A map in which land price announcement data of a point indicated by predetermined position coordinates on the map, land price information including a point number of the point, and use area information including a use area are stored in association with the position coordinates on the map. A database,
Detailed information of the point including the price point, price, and use area of the specific point on the map has a land price detailed information database stored in association with the point number,
This method
Use area acquisition step of acquiring a use area of the appraisal target point from the map database by specifying coordinates of the appraisal target point when the computer designates the appraisal target point on the map displayed on the terminal When,
The computer searches the detailed land price information database based on the use area acquired in the use area acquisition step, identifies points that can be compared with the appraisal spot around the appraisal area, and provides detailed information Land price information extraction process to extract
Based on the extracted detailed information of the comparable point, the computer calculates the standard price of the point of appraisal based on the land price information of this point, the price point and land price announcement data, and the land price announcement data of the point of appraisal And displaying the calculated standard price of the appraisal target point on the terminal,
The use area is associated with a plurality of areas for collecting a plurality of types of use areas, and each of the areas is the same type of use as the use area of the appraisal point acquired in the use area acquisition step. A first area including only a region, and a second area including a use area included in the first area and a use area of a type different from the use area,
The land price information extraction step includes:
From the land price detailed information database, a use area included in the first area within a predetermined distance range centered on the appraisal target point (use area of the appraisal target point acquired in the use area acquisition step) The same type of use area) and identify the comparable points in the same use area ,
In the case where the number of the identified comparable points is equal to or less than a predetermined number , a plurality of use areas (in the second area) within the predetermined distance range centered on the point to be identified identify the comparable point in the application differs from the area and the application area type of zoning) in the same application areas included in the first area,
Detailed information of the identified comparable points is extracted from the detailed land price information database. The method of claim 17, wherein
The land price information includes the road price of the tangential road at each point,
A route price acquisition step in which when the user designates an appraisal point on the map by the user, the appraisal value of the tangential road of the appraisal point is obtained from the land price information based on the position coordinates of the appraisal target point. Further comprising
In the land price information extracting step, the computer extracts, from the land price detailed information database, detailed information whose difference from the road price is within a predetermined range based on the road price. The method of claim 17, wherein
In the land price information extracting step, the computer extracts detailed information within a predetermined range set in advance based on the appraisal target point from the land price detailed information database. The method of claim 19, wherein
In the land price information extracting step, when the number of comparable land price information within a predetermined range from the appraisal target point is equal to or less than a predetermined number, the detailed information that can be compared within a predetermined range wider than the predetermined range. Is extracted from the land price detailed information database. The method of claim 17, wherein
In the land price information extracting step, the computer displays detailed information extracted from the land price detailed information database on the terminal according to use area. The method of claim 17, wherein
In the land price information extracting step, when the detailed information retrieved is a predetermined number or more, the computer extracts only the detailed information of the use area acquired in the use area acquiring process from the land price detailed information database and displays it on the terminal. A method characterized by being. The method of claim 17, wherein
In the land price information extraction step, the computer calculates the standard price of the appraisal target point using the detailed information selected by the user among the detailed information extracted from the land price detailed information database. Feature method. The method of claim 17, wherein
The standard price calculated in the standard price calculation step and the detailed information of the appraisal target point are displayed on the user's terminal, the user is made to input predetermined individual information, and the target is based on the input individual information Has a calculation process to calculate the real estate price,
A method comprising a step of displaying the calculation result on a user terminal.

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