The real estate measurement specification solution allows you to fully understand the real estate measurement knowledge

Property has always been a hot spot, and real estate measurement is also very important. The standard of real estate measurement standards is proposed by the Ministry of Construction and the State Bureau of Surveying and Mapping, so it is also under the jurisdiction of both. This standard is also based on the "Real Estate Measurement Standards" issued by the National Bureau of Surveying and Mapping in May 1991, and combines the needs of the recent development of science and technology production with reference to relevant domestic and foreign standards and regulations. The next small series for everyone to explain the real estate measurement specification.

The purpose of real estate measurement

The real estate measurement is mainly to collect and express the relevant information of housing and house land, and provide data and information for real estate property rights, birth control management, real estate development and utilization, transactions, taxation, and for urban planning and construction.

The basic content of real estate measurement

The basic contents of real estate measurement include: real estate flat control survey and measurement, real estate investigation, real estate factor measurement, real estate map drawing, real estate area measurement, change measurement, inspection and acceptance of achievement data.

The basic accuracy requirements for real estate measurement

The accuracy index and tolerance of real estate measurement: This standard regards the medium error as the standard of the assessment accuracy, and the error in two parts as the tolerance.

The basic accuracy requirements for real estate flat control surveys: The error in the relative points of the adjacent basic control points at the last level does not exceed ±0.025 m.

Accuracy requirements for real estate boundary sites: The accuracy of the real estate boundary point (hereinafter referred to as the boundary point) is divided into three levels. The point error of each level boundary point relative to the adjacent control point and the adjacent boundary point where the distance exceeds 50m. The spacing error shall not exceed the requirements of Table 1. The spacing error tolerance between the boundary points not exceeding a distance of 50 m shall not exceed the calculation result.

Accuracy requirements for corner points: When the coordinates of the corner points need to be determined, the precision grades and tolerances of the coordinates of the corner points are performed in the same standard as the boundary points, and if the coordinates of the corner points are not required, the houses are pressed according to 3.2.3. The accuracy requirements are shown on the real estate map.

The precision of the real estate area: The accuracy of the real estate area is divided into three levels. The tolerances and mid-level errors for all levels of the area do not exceed the results calculated in Table 2.

Property area measurement content

Area measurement: Area measurement refers to the calculation of horizontal area. It is divided into two categories: house area and land area. The area of ​​the house is estimated to include building area, total building area, property area, and area of ​​use.

The building area of ​​a house: The building area of ​​a house refers to the horizontal horizontal projected area of ​​the external walls (columns) of the house, including the balconies, the promenade, the basement, the outdoor stairs, etc., and it has an upper cover and a firm structure. 2.20M or more (including 2.20M) permanent building.

The area of ​​use of the house: The area of ​​use of the house refers to the area of ​​space available for use within the house, calculated on the horizontal projection of the interior wall surface of the house.

The area of ​​property rights of a house: The area of ​​property rights of a house refers to the area of ​​the house in which the owner of the property owns the house according to law. The area of ​​house property rights shall be determined by the registration of the real estate administrative authorities of municipalities, cities, and counties.

The total building area of ​​a house: The total building area of ​​a house refers to the building area that is shared or used jointly by property owners.

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