# 46 Diamond Street, Brooklyn

Two-family · built c. 1931 · Block 2685, Lot 60.

On Umarelli: https://umarelli.org/nyc/3026850060/48-diamond-street

More construction in Greenpoint: https://umarelli.org/nyc/brooklyn/greenpoint.md

## Building permits

- New Building — Multi-Family, filed Dec 23, 2025, 8 units, 4 stories, described as “Proposed four (4) story multiple dwelling as per plans filed herewith”
- Alteration, filed Sep 2, 2026, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. Sidewalk shed shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Alteration, filed Sep 2, 2026, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. Sidewalk shed shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Alteration, filed Apr 24, 2026, estimated cost $3K, described as “8' construction fence”
- Demolition, filed Jan 21, 2026, estimated cost $50K, described as “Full demolition of existing 2-story house.”
- Demolition, filed Jan 15, 2026, estimated cost $25K, described as “Full demolition of existing 1-story structure.”
- Demolition, filed Jan 15, 2026, estimated cost $10K, described as “Full demolition of existing garage.”
- Alteration, filed May 27, 2020, estimated cost $1K, described as “Propose new construction fence for NB application #321595010”
- Alteration, filed Nov 18, 2019, estimated cost $1K, described as “Propose mechanical work in conjunction with NB job # 321595010 as per plan”
- Alteration, filed Nov 18, 2019, estimated cost $1K, described as “Propose plumbing and sprinkler work in conjunction with NB # 321595010.”
- Alteration, filed Oct 22, 2019, estimated cost $1K, described as “Structural scope of work for proposed new building filed in conjunction with NB # 321595010.”

## Property taxes

- Assessment: $36,992
- 2026–27 tax: $7,340
- Market value (city estimate): $616,533
- Taxable value: $36,992
- Assessed land: $5,492
- Assessed improvements: $31,500

## Zoning

R6B: floor area ratio 0.32 built, 2.00 allowed by base zoning.

## Recent sales

- May 31, 2023: $1,860,000, 800 sq ft ($2,325 per sq ft)
- Feb 11, 2019: $1,750,000, 800 sq ft ($2,188 per sq ft)

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

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

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