421 Avenue O
Brooklyn, NY 11230BBL 3-06586-0047Map
Owner of record: Emily Kassin Revocable Trust
421 Avenue O is an one-family home built in 2002 in Brooklyn, 11230. It has 1 residential unit across 2.75 floors. The owner of record is Emily Kassin Revocable Trust. HPD has no housing violations on record for this property.
- HPD violations
- 0
- DOB violations
- 1
- ECB violations
- 2
- HPD complaints
- 0
What to know
No open immediately-hazardous violations among recent records.
HPD has not cited this building.
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 · 0
No HPD violations on record
DOB building violations · 1
- Construction other optional
C-construction other optional
Jun 21, 2002
Dob violation - active
ECB violations · 2
- Hazardous
Fence does not couform to code. upon inspection at alone property deurolitiou was in progrees, building was deciolishied to guade tountatiou walls still in place and fence doing e 4 are orange net 4' high that
Sep 17, 2001 · Penalty $500
Resolve - Hazardous
No fence interupted demo.upon inspection at above property demolition was in progress and demolition site was not interrupted with fence (partial)remedy:provide fence as per code
Sep 14, 2001
Resolve
Complaints
No HPD complaints in our records
Sales history
| Date | Price | Type | Units |
|---|---|---|---|
| Jun 8, 2026 | Non-market transfer | One family dwellings | 1 |
Building details
- Building type
- One-family home (A3)
- Year built
- 2002
- Floors
- 2.75
- Residential units
- 1
- Building area
- 6,188 ft²
- Lot area
- 4,000 ft²
- Zoning
- R5
- Community board
- 312
- Council district
- 44
- Block / lot
- 6586 / 47
- Assessed value
- $337,980
- Landmark / historic district
- No
Questions about 421 Avenue O
Who owns 421 Avenue O?
The owner of record in NYC Department of City Planning PLUTO data is Emily Kassin Revocable Trust.
Does 421 Avenue O have violations?
NYC HPD has no housing violations on record for this property.
Is 421 Avenue O 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 421 Avenue O built?
City records list 2002 as the year it was built.
How many apartments are in 421 Avenue O?
It has 1 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.