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| Building size | 115,297 sq ft |
|---|---|
| Stories | 6 |
| Sq ft per floor | 19,216 sq ft |
| Year built | 1940 |
| Lot dimensions | 201.42 × 100 ft |
|---|---|
| Lot area | 20,142 sq ft |
| FEMA flood zone | X — minimal risk |
| Units | 99 |
|---|---|
| Zoning | C2-8 |
| Building class | R0 |
| Ownership | Condominium |
| Block / lot | Block 1223 / Lot 7501 |
| Built FAR | 5.72 |
|---|---|
| Max residential FAR | 10.00 |
| Max commercial FAR | 2.00 |
| Max facility FAR | 10.00 |
| Tax class | 2 |
|---|---|
| Rent regulated | Likely |
Terms on this page, explained →
661 Amsterdam Avenue was built in 1940 — roughly 86 years old. This is a condominium of 99 units — each unit is its own tax lot with its own bill. Search with a unit number for unit-level figures. For property-tax purposes it falls under Class 2 (residential buildings with four or more units, condos and co-ops), taxed at 12.439% of a taxable value based on 45% of the city’s income-derived market value.
The building uses about 57% of the residential density its zoning allows (5.72 built FAR vs. a residential maximum of 10.00) — roughly 86,208 sq ft of unused development rights, which can matter for renovations, expansions, or air-rights value. Those figures are for residential use — the lot also carries a commercial allowance of 2.00 FAR. With 99 units in a building of this age, some apartments are likely rent-stabilized — worth verifying with DHCR before purchase.
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Data: NYC Department of Finance and Dept. of City Planning (PLUTO) via NYC Open Data. Figures are public records, may lag current bills, and can exclude abatements. Not financial advice.