A Research On The Update Of Datum Land Price

Datum land price is a kind of average price which is evaluated by government on the basis of land distinctions and longest time-limit of the legal. It includes business -land price, housing-land one, and industrial land one. .It is the most familiar form of the average price of district at present. It also reflects the total level and distributing regulation with space of land price of cities. According to the datum land price, the government could control and manage prices in real estate market on macroscopic. It is also the basic standard for government to collect tax and fee of land use. It will help the government to get part of income in land use. Datum land price update is made on the basis of land distinctions. Rent of lots, average prices of bargain samples and land price index are used to update the datum land price and revising system of prices of lots. After land market or affecting factors of land price change, the datum land price and evaluatingstandard of prices of lots should be updated in order to make the evaluated price of land, the datum land price and evaluating standard of prices of lots be practical.According to the actuality of the real estate market of Chongqing, we decided the basic method of the Update of Datum Land Price of the main urban zone of Chongqing. First, we collected and coordinate bargaining information on market of various lands. Then, we calculated and correct the prices of bargaining samples. After that, we checked up and disposed the data of samples. Finally, we use the prices of bargaining samples on market to update the datum land Price on land-distinctions and land-types. In addition, we validate the updated datum land price by using land price index.Complete basic data will do good to update the datum land price. The basic data include the land distinctions, land rent, land prices, affecting factors of land price etc.Substituting principle is used to establish the revising coefficients tables for datum land price. The tables join the datum land price, prices of lots and affecting factors of land prices together. They help us to revise the datum land price into price of the lot on different affecting factors. On condition of investigation on lots, we could evaluate prices of them quickly and efficiently through the corresponding revising coefficients. At the same time, calculation and revision of land prices of samples could not accomplished without thfr tables.The coordinated land price data of bargaining samples could not be used to update the datum land price. First, we should calculated the land prices of samples to get normative price under the connotation of the datum land price. Then, we revise the prices of samples to make them into the connotation with that of the datum land price. We should revise the exploiting degree, capacity rate, remising period etc. Finally, we should check up land prices data of samples. Standard differences are used to check up the data on the basis of land distinctions and land kinds. Only in this way could we eliminate the abnormal land price data.After the calculation, revision and test of the bargaining price data on market of 2000, we could evaluate the datum land price on land distinctions and types of the main urban zone of Chongqing. According to the distributing regulations of prices of samples, we select arithmetic average data on the basis of the land proportion. At the same time, we validate the updated datum land price. Then, we use academic model of income of difference between land distinctions calculating to revise the updated datum land price to make the difference between land distinctions rational. That is because the bargaining samples on market and connection between supply & demand are sometimes haphazard. Finally, the validated and revised result were affirmed.