# 275 4th Avenue, Brooklyn

Condominium · 44 units · built 2015 · Block 964, Lot 7505.

On Umarelli: https://umarelli.org/nyc/3009647505/275-4-avenue

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

Every lot on block 964: https://umarelli.org/nyc/brooklyn/964.md

## Building permits

- Alteration, filed Jul 7, 2026, described as “Industrial rope access for facade inspections.”
- Alteration, filed Jan 31, 2025, estimated cost $70K, described as “File application to renovation 1ST floor for existing commercial store mechanical and partition involved.plumbing work file under separate application .no change to use,egress and occupancy”
- Alteration, filed Jan 31, 2025, estimated cost $18K, described as “File application to install new plumbing fixtures for commercial store.plumbing work only,no change to use,egress and occupancy.”
- Alteration, filed Nov 6, 2023, estimated cost $80K, described as “Interior build-out of ambulatory healthcare facility (physical therapy space). Scope includes new partitions, doors, & finishes. New ADA bathroom. No change to storefront, lighting, HVAC, or sprinklers. No change to use, egress, or…”
- Alteration, filed May 20, 2022, estimated cost $25K, described as “Proposed work on partial 1st floor, install 1 self contained 8 ton unit with associated ductwork.”
- Alteration, filed Apr 26, 2022, estimated cost $65K, described as “Interior renovation of retail space to relocate entrance and create accessory door between two spaces. No change in use, occupancy or egress”
- Alteration, filed Sep 10, 2020, estimated cost $8K, described as “Plumbing work as per plans filed. No change to occupancy, use or egress.”
- Alteration, filed Sep 10, 2020, estimated cost $8K, described as “Mechanical work as per plans filed. Filed in conjunction with Alt II #340762375.”

## Property taxes

- Assessment: $9,796,539
- 2026–27 tax: $304,070
- Market value (city estimate): $21,770,054
- Taxable value: $3,126,461
- Assessed land: $675,014
- Assessed improvements: $9,121,525
- Condo units with their own tax lots: 46

## Tax breaks

- 421-a exemption, through Jun 30, 2033, about $605,649 a year below the full tax.

## Zoning

C4-4D: floor area ratio 6.34 built, above the 6.02 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Jul 15, 2026: $1,630,000, Apt 1A
- Jun 23, 2026: $2,595,000, Apt 7F
- Apr 20, 2026: $1,585,000, Apt 4F
- Jul 16, 2025: $350,000, Apt PH 9A
- Jul 7, 2025: $2,050,000, Apt 7D
- Jun 26, 2025: $3,100,000, Apt PH11A
- Feb 12, 2025: $1,400,000, Apt 3C
- Aug 16, 2024: $1,810,000, Apt 5A
- Feb 22, 2024: $1,485,000, Apt 5C
- Apr 28, 2023: $1,350,000, Apt 5E

The 10 most recent of 68 open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

## Board and land use applications

- Gowanus Neighborhood Plan (City Planning 2018K0382): Zoning map change, Zoning text change, City map change, Urban development action area, Completed, decided Dec 6, 2021. The Gowanus Neighborhood Plan is a shared, long-term vision for a thriving neighborhood. It looks to identify strategies for an equitable, resilient and sustainable Gowanus, with more local jobs and housing. The Plan supports community…

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