521 Hancock Street
Brooklyn, NY 11233BBL 3-01655-0079Map
Owner of record: 521 Hancock LLC
521 Hancock Street is a walk-up apartment building built in 1899 in Brooklyn, 11233. It has 3 residential units across 3 floors. The owner of record is 521 Hancock LLC. HPD has recorded 2 housing violations here, most recently on January 26, 2022. 2 of the 2 most recent violations are still open.
- HPD violations
- 2
- DOB violations
- 0
- ECB violations
- 0
- HPD complaints
- 6
What to know
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 2
- BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the 3rd room from north located at apt ground, 1st story, 1st apartment from north at east
Jan 26, 2022 · Apt GROUND
Open — Nov sent out - CImmediately hazardous
Code: arrange and make self-closing the doors .. in the entrance located at apt ground, 1st story, 1st apartment from north at east
Jan 26, 2022 · Apt GROUND
Open — Nov sent out
DOB building violations · 0
No DOB violations on record
ECB violations · 0
No ECB violations on record
Complaints
- Heat/hot water
Entire building
Jan 28, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Jan 27, 2022 · Apt GROUND
Close - Plumbing
Water supply
Jan 27, 2022 · Apt GROUND
Close - Heat/hot water
Apartment only
Jan 27, 2022 · Apt 1
Close - Heat/hot water
Apartment only
Jan 25, 2022 · Apt GROUND
Close - Unsanitary condition
Sewage
Jan 25, 2022 · Apt GROUND
Close
Sales history
| Date | Price | Type | Units |
|---|---|---|---|
| Oct 8, 2025 | Non-market transfer | Three family dwellings | 3 |
Building details
- Building type
- Walk-up apartment building (C0)
- Year built
- 1899
- Floors
- 3
- Residential units
- 3
- Building area
- 3,280 ft²
- Lot area
- 1,908 ft²
- Zoning
- R6B
- Community board
- 303
- Council district
- 36
- Block / lot
- 1655 / 79
- Assessed value
- $127,380
- Landmark / historic district
- No
Questions about 521 Hancock Street
Who owns 521 Hancock Street?
The owner of record in NYC Department of City Planning PLUTO data is 521 Hancock LLC.
Does 521 Hancock Street have violations?
Yes. NYC HPD has recorded 2 housing violations at this property.
Is 521 Hancock Street rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 521 Hancock Street built?
City records list 1899 as the year it was built.
How many apartments are in 521 Hancock Street?
It has 3 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.