# 725 4th Avenue, Brooklyn

Apartment building · 164 units · built c. 1928 · Block 649, Lot 1.

On Umarelli: https://umarelli.org/nyc/3006490001/725-4-avenue

More construction in Sunset Park: https://umarelli.org/nyc/brooklyn/sunset-park.md

Every lot on block 649: https://umarelli.org/nyc/brooklyn/649.md

## Building permits

- Alteration, filed Jan 6, 2025, estimated cost $25K, described as “Air handler unit and HVAC upgrade as per plans for tenant space pls.”
- Alteration, filed Apr 30, 2021, estimated cost $2K, described as “Non-illuminated business accessory wall sign. No change to use, egress or occupancy”

## Property taxes

- Assessment: $7,171,200
- 2026–27 tax: $870,643
- Market value (city estimate): $15,936,000
- Taxable value: $6,999,300
- Assessed land: $360,450
- Assessed improvements: $6,810,750

## Zoning

R6B (part of the lot is R8A): floor area ratio 3.26 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology