$9,800,000 Sold Jun 2026
$4,736,000 Assessed value
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| Building size | 3,782 sq ft |
|---|---|
| Building dimensions | 25 × 75 ft |
| Stories | 2.5 |
| Basement / garden level | Yes — below ground |
| Sq ft per floor | 1,513 sq ft |
| Year built | 1935 |
| Lot dimensions | 60 × 150 ft |
|---|---|
| Lot area | 9,000 sq ft |
| FEMA flood zone | X — minimal risk |
| Units | 1 |
|---|---|
| Zoning | R5 |
| Building class | A1 |
| Block / lot | Block 6519 / Lot 48 |
| Built FAR | 0.42 |
|---|---|
| Max residential FAR | 1.50 |
| Max facility FAR | 2.00 |
| Last recorded sale | $9,800,000 (Jun 2026) |
|---|---|
| Assessed value | $4,736,000 |
| Tax class | 1 |
| Annual property tax | $28,001 |
| Rent regulated | Unlikely |
Terms on this page, explained →
601 Avenue J was built in 1935 — roughly 91 years old. For property-tax purposes it falls under Class 1 (one- to three-family homes), the class with the highest nominal rate (19.8433%) but assessments capped at 6% of market value with strict yearly growth limits. At the current assessment that works out to about $28,001 per year ($2,333/month) before any abatements or exemptions the owner may receive. City records show it last changed hands for $9,800,000 in Jun 2026.
The building uses about 28% of the residential density its zoning allows (0.42 built FAR vs. a residential maximum of 1.50) — roughly 9,720 sq ft of unused development rights, which can matter for renovations, expansions, or air-rights value. Those figures are for residential use — a community-facility use (a doctor’s office, clinic, or school) raises the ceiling to 2.00 FAR.
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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.