# 726 5th Avenue, Brooklyn

Apartment building · 21 units · built 2002 · Block 649, Lot 35.

On Umarelli: https://umarelli.org/nyc/3006490035/726-5-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 Apr 10, 2026, estimated cost $2K, described as “Install exterior non-illuminated wall sign (the tiny scientist)”
- Alteration, filed Jun 20, 2025, estimated cost $35K, described as “Filing alt-1 to change the use of the community facility space at 001 to a commercial use with minor proposed work to flip an egress door”
- Alteration, filed Jun 12, 2023, estimated cost $4K, described as “Herewith filing to change job from non diretive 14 to directive 14. No plan changes for directive 14 change only.”
- Alteration, filed Dec 14, 2022, estimated cost $10K, described as “Proposing repairs to existing retaining wall”

## Property taxes

- Assessment: $1,241,550
- 2026–27 tax: $8,240
- Market value (city estimate): $2,759,000
- Taxable value: $66,240
- Assessed land: $202,950
- Assessed improvements: $1,038,600

## Tax breaks

- 421-a exemption, through Jun 30, 2031, about $146,197 a year below the full tax.

## Zoning

R6A: floor area ratio 3.97 built, above the 3.00 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