$487,500 Sold Jul 2026 · Unit 2403
$37,973,000 Assessed value
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| Building size | 204,463 sq ft |
|---|---|
| Building dimensions | 115 × 120 ft |
| Stories | 24 |
| Basement / garden level | Yes — below ground |
| Sq ft per floor | 8,519 sq ft |
| Year built | 1929 |
| Lot dimensions | 115 × 120 ft |
|---|---|
| Lot area | 13,518 sq ft |
| FEMA flood zone | X — minimal risk |
| Units | 325 |
|---|---|
| Zoning | R8 |
| Building class | D4 |
| Ownership | Co-op building |
| Construction | Brick / Terra Cotta (landmarks record) |
| Block / lot | Block 1890 / Lot 40 |
| Built FAR | 14.93 |
|---|---|
| Max residential FAR | 6.02 |
| Max facility FAR | 6.50 |
| Last recorded sale | $487,500 (Jul 2026) |
|---|---|
| Assessed value | $37,973,000 |
| Tax class | 2 |
| Annual property tax | $1,905,288 |
| Exemptions / abatements | MASTERS APARTMENT INC |
| Rent regulated | Co-op |
Terms on this page, explained →
310 Riverside Drive was built in 1929 — roughly 97 years old. This is a co-op building with 323 apartments — residents own shares in the corporation that owns the building, rather than their apartments outright. Apartments average about 633 sq ft (building area divided by apartment count — individual units vary). 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 corporation pays one building-wide tax bill — about $1,905,288 per year — passed to residents through monthly maintenance in proportion to each apartment’s share allocation. A straight average works out to roughly $5,899 per apartment per year, though larger apartments carry more shares (and many primary residents get the co-op/condo abatement on top). The most recent recorded sale in the building was unit 2403, for $487,500 in Jul 2026.
City landmark records describe it as an Art Deco apartment hotel dating to 1928 - 1929, originally used as commercial, hotel. It was designed by Harvey Wiley Corbett & Sugarman & Berger for Master Building, Inc.. It stands within the Riverside-West End Historic District Extension II.
The building already exceeds what current residential zoning would allow (14.93 built FAR vs. a residential maximum of 6.02) — typically a grandfathered or overbuilt structure that could not be rebuilt to this size under today’s rules. Those figures are for residential use — a community-facility use (a doctor’s office, clinic, or school) raises the ceiling to 6.50 FAR. This lot is associated with a co-op; individual apartments are owned as shares and taxed through the building.
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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.