On this day (June 23) in 1973, I went to work for the City of New York in what was then called the Housing and Development Administration (HDA) and is now the Department of Housing Preservation and Development. Shortly after joining the city staff as a "quantitative analyst", I was assigned to the Neighborhood Preservation Program (NPP) that the Mayor (John Lindsay) created by executive order
These were the days of massive housing abandonment in areas such as the South Bronx and East New York. The NPP was designed to try to prevent abandonment to spreading to nearby neighborhoods that had a solid stock of one to three-family ownership housing mixed in with multi-family structures experiencing disinvestment and deterioration. In a 1974 Fordham Urban Law Journal article , Philip Weitzman described the program, " . . . as the first truly comprehensive effort in the nation aimed at preserving sound urban neighborhoods."
 NEW YORK, N.Y., ExEc. ORDER No. 80 (May 23, 1973), in 101 The City Record 2066 (1973)