NYC-WTC_000187725

NYC 9/11 Public Portal Document

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access characteristics, and transit access characteristics. The data inputs for determining the universe of property sales are first described, followed by the attribute data. Universe of Sold Parcels i' i Two sources of data were utilized in preparation of the universe of sold parcels for selected building classes: o All real estate transactions in the study area between January, 1985 and July, 1988, were compiled by borough, block and i lot identifier, building classification, most recent sales price, sales date, lot dimension, total assessed value, and assessed land value, for the following building codes: - vacant land - one family and two family dwellings - walk-up apartments - elevator apartments - office buildings - store buildings Ji Over the three and one half years, property sales in the six land use categories comprised 102,400 transactions or individual records for Manhattan, Brooklyn, Queens, and the Bronx, fully 11 percent of all existing tax parcels in the City of New York. The records of 98,800 real estate market sales were obtained from the j national data research center of Real Estate Data, Inc., a Sanborn affiliate which compiles primary sales data for major metropolitan areas from municipal and county clerk offices. These records were supplemented by 3,600 auction sales of public property to private ownership, as reported by the New York City Department of General Services. o All demolition permits and related records of intended change-of-use were assembled for the universe of sold parcels by ! borough, block and lot identifier, pre-existing use, and vacancy status. Some 4,700 demolition permits were awarded by New York City government to the 102,400 sold parcels, and an additional 340 parcels in Manhattan were purchased by developers for future redevelopment purposes. The demolition records were obtained from the New York City Department of Buildings and the development parcel records were obtained from the Real Estate Board of New York. These records were used to transfer some five thousand parcels, or 4.9% of the sales universe, from the building class identified at date of sale to the vacant land class for which the purchase was intended. Editing was performed of the real estate transactions file merged with the demolitions file, resulting in the elimination of 12,400 parcels from the universe of 102,400 sales in six building classes. Reasons for elimination included duplication of records. I

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