# 441 Prospect Avenue, Brooklyn

Industrial · built 1965 · Block 1113, Lot 73.

On Umarelli: https://umarelli.org/nyc/3011130073/447-prospect-avenue

More construction in South Slope: https://umarelli.org/nyc/brooklyn/south-slope.md

## Building permits

- New Building — Mid-Rise, filed Jul 29, 2026, 99 units, 10 stories, described as “MPP #638 - Building A Proposed ten-story mixed-use building”
- New Building — Mid-Rise, filed Jul 29, 2026, 99 units, 10 stories, described as “MPP #638 - Building B Proposed ten-story residential building”
- Alteration, filed Jun 29, 2026, estimated cost $160, described as “Proposed 8FT construction fence. No change to use, egress or occupancy under this application.”
- Alteration, filed Jun 8, 2026, estimated cost $7K, described as “Proposed to cut, cap and demolish sprinkler system in conjunction with full demo job # B01361495. No change to use, egress or occupancy under this application.”
- Demolition, filed Apr 13, 2026, estimated cost $100K, described as “Full Demolition to a One Story Structure”
- Alteration, filed Dec 15, 2023, estimated cost $5K, described as “Propose extension of term of variance granted by BSA and obtain new certificate”

## Property taxes

- Assessment: $440,550
- Market value (city estimate): $979,000
- Taxable value: $0
- Assessed land: $182,700
- Assessed improvements: $257,850

## Tax breaks

- IDA PILOT, with no end date.

## Zoning

R7A: floor area ratio 0.18 built, 4.00 allowed by base zoning.

## Recent sales

- Sep 25, 2026: $55,000,000, 4,200 sq ft, sold with other lots

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

- Variance or special permit (Board of Standards and Appeals 42-09-BZ): Variance or special permit, Granted, filed Mar 6, 2009, decided Aug 11, 2009. Re-instatement (§11-411 & §11-412) for re-instatement of a variance (expired July 12, 1992) which allowed the extension of a legal non conforming commercial laundry use (Arrow Linen Supply) within a residential zoning district. The…
- 441 & 467 Prospect Avenue Rezoning (City Planning 2021K0375): Zoning map change, Zoning text change, Completed, decided Feb 27, 2025. A zoning map amendment from R5B to R7-1, a zoning special permit pursuant to ZR 74-533 to waive required parking minimums, and a zoning text amendment to create an MIH area to facilitate two new 13-story buildings, with approximately…

## In the news

[City Planning Chair Asks About Affordable Housing, Height at Arrow Linen Hearing](https://www.brownstoner.com/development/arrow-linen-city-planning-hearing-affordable-housing/), Brownstoner, Nov 11, 2024.

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