# 828 50th Street, Brooklyn

Two-family · built c. 1920 · Block 5644, Lot 18.

On Umarelli: https://umarelli.org/nyc/3056440018/828-50-street

More construction in Borough Park: https://umarelli.org/nyc/brooklyn/borough-park.md

## Building permits

- Alteration, filed Jun 19, 2026, estimated cost $379K, described as “Interior renovation of existing 2-family dwelling including new partitions, floor finishes, ceiling and wall repairs. Exterior work includes new stairs and well as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jun 5, 2025, estimated cost $1K, described as “Install construction fence outside of the property but within 3 feet of the property line”
- Alteration, filed Jun 5, 2025, estimated cost $395K, described as “Propose structural design for new 4-story building with bulkhead and cellar, vertical and horizontal enlargement from the existing 2 story building footprint.”
- Alteration, filed Jul 2, 2024, estimated cost $92K, described as “Interior renovation of an existing 2 family house with , repairing floor, ceiling, stair, new partition, painting , replace windows, doors. No change in use, egress or occupancy.”
- Alteration, filed Jul 2, 2024, estimated cost $15K, described as “File to plumbing work as plan conjunction with GC application B01075664, no change in use , egress or occupancy.”
- Major Renovation — Enlargement, filed Oct 6, 2023, estimated cost $1.5M, 2 units added, 4 stories, described as “Proposed vertical and horizontal enlargement of an existing 2-story two-family building to 4-story 4-family mixed-use building as per plan. Obtain new certificate of occupancy.”

## Property taxes

- Assessment: $75,240
- 2026–27 tax: $6,347
- Market value (city estimate): $1,254,000
- Taxable value: $31,987
- Assessed land: $20,040
- Assessed improvements: $55,200

## Zoning

R6: floor area ratio 0.86 built, 2.43 allowed by base zoning.

## Recent sales

- Mar 14, 2022: $1,100,000

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