# 171 North First Street, Brooklyn

Condominium · 57 units · Block 2366, Lot 7502.

On Umarelli: https://umarelli.org/nyc/3023667502/171-north-first-street

More construction in Williamsburg: https://umarelli.org/nyc/brooklyn/williamsburg.md

## Building permits

- Alteration, filed Sep 3, 2021, estimated cost $5K, described as “Installation of 300psf sidewalk shed, overhead protection, roof protection and pipe scaffolding as per plans. All equipment shall comply with chapter #33 of the 2014 code no change to use, egress or occupancy under this application.”
- Alteration, filed Aug 23, 2021, estimated cost $1K, described as “Structural work as shown on plans filed herewith, in conjunction with NB# 321589722.”
- Alteration, filed Jul 23, 2021, estimated cost $1K, described as “Underground plumbing in conjunction with NB # 321589722.”
- Alteration, filed Jul 9, 2021, estimated cost $1K, described as “Sprinkler/Standpipe work as shown on plans filed herewith, in conjunction with NB# 321589722”
- Alteration, filed Jul 8, 2021, estimated cost $1K, described as “Mechanical work as shown on plans filed herewith, in conjunction with New Building application #321589722.”
- Alteration, filed Jul 7, 2021, estimated cost $1K, described as “Plumbing work as shown on plans filed herewith, in conjunction with NB#321589722”
- Alteration, filed May 17, 2021, estimated cost $5K, described as “Installation of construction fence to protect site, during SOE /FO work”
- Alteration, filed Aug 31, 2020, estimated cost $3K, described as “Installation of construction fence to protect site, during full demolition.”
- Alteration, filed Apr 23, 2020, estimated cost $3K, described as “Filing herewith installation of 12' curb cut located on North 1st Street. In conjunction with New Building Application # 321589722. No change in use, egress, or occupancy.”
- Alteration, filed Apr 9, 2020, estimated cost $5K, described as “Installation of sidewalk shed and roof protection as per plans. Sidewalk shed live load 300 psf shall comply with chapter #33 of the 2014 code no change to use, egress or occupancy.”

## Property taxes

- Assessment: $8,413,659
- 2026–27 tax: $1,035,942
- Market value (city estimate): $18,697,006
- Taxable value: $8,328,170
- Assessed land: $624,152
- Assessed improvements: $7,789,507
- Condo units with their own tax lots: 57

## Zoning

M1-2/R6A: floor area ratio 3.73 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Sep 18, 2025: $1,031,000, Apt 5B
- Jul 2, 2025: $975,000, Apt 3A
- Jan 16, 2025: $2,300,000, Apt 6D
- Sep 16, 2024: $1,160,494, Apt 2F
- Sep 9, 2024: $2,078,797, Apt 2D
- Aug 28, 2024: $2,179,710, Apt 5K
- Aug 12, 2024: $1,820,000, Apt 5C
- Jul 15, 2024: $1,182,417, Apt 3E
- Jul 9, 2024: $1,809,084, Apt 5E
- May 21, 2024: $1,130,000, Apt 3J

The 10 most recent of 37 open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

## In the news

[Gemini Rosemont Reveals Interior Renderings for 171 North 1st Street in Williamsburg, Brooklyn](https://newyorkyimby.com/2023/08/gemeni-rosemont-reveals-interior-renderings-for-171-north-1st-street-in-williamsburg-brooklyn.html), New York YIMBY, Aug 10, 2023.

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