# 315 3rd Street, Brooklyn

Co-op · 8 units · built c. 1920 · Block 974, Lot 67.

On Umarelli: https://umarelli.org/nyc/3009740067/315-3-street

More construction in Park Slope: https://umarelli.org/nyc/brooklyn/park-slope.md

Every lot on block 974: https://umarelli.org/nyc/brooklyn/974.md

## Building permits

- Alteration, filed Feb 24, 2026, estimated cost $23K, described as “Installation of new HVAC split unit for apt. 2A of existing four story residential building. No change in occupancy, use, or egress.”
- Alteration, filed Mar 26, 2024, estimated cost $10K, described as “Install new split a/c at APT#1A & APT#4A of existing 4 story building with mechanical work as per plan filed herewith. No change in use, egress or certificate of occupancy.”
- Alteration, filed May 8, 2023, described as “Installation of heavy duty sidewalk shed and pipe scaffolding. No change in use, occupancy or egress. Work shall comply with chapter 33 of nycc.”
- Alteration, filed Dec 10, 2021, estimated cost $10K, described as “Install new split a/c at cellar and 1ST floor at APT#1B of existing 4 story building. No change in use, egress or certificate of occupancy.”

## Property taxes

- Assessment: $1,218,150
- 2026–27 tax: $27,755
- Market value (city estimate): $2,707,000
- Taxable value: $293,901
- Assessed land: $18,450
- Assessed improvements: $1,199,700

## Tax breaks

- Co-op and condo abatement, with no end date, a $8,985 credit this tax year.

## Zoning

R6B: floor area ratio 3.21 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Aug 25, 2026: $1,152,000
- Sep 30, 2025: $1,150,000
- Apr 28, 2020: $1,520,000, Apt 1B
- Nov 14, 2017: $915,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## 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