8510 21 AVENUE
8510 21 AVENUE is a Class S2 (two-family + store) building in Brooklyn (BBL 3063460042) built in 1931, with 3 residential units across 3 floors.
The building is in NYC community district 311, council district 43, zoning district C4-2, on a 1,900-square-foot lot with a building footprint of 3,534 square feet.
The current registered owner of record per NYC PLUTO is 8510 21ST AVENUE HOLDINGS, LLC.
MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
The building is registered with NYC HPD's landlord-registration system and has no open HPD housing-maintenance code violations on record as of May 18, 2026.
Data sourced daily from NYC PLUTO (Department of City Planning), NYC ACRIS (Department of Finance), and NYC HPD housing-maintenance code violations.
Owner of record
HPD registered contacts
- Head OfficerVictoria Chow
- Corporate Owner8510 21St Avenue Holdings LLC
- Site ManagerJimmy Zhang
Most recent deed
Recent ACRIS documents (last 4)
Building stats
- Zoning:
- C4-2
- Lot size:
- 1,900 sqft
- Building area:
- 3,534 sqft
- Floors:
- 3
- Assessed value:
- $104K
- Community district:
- 311
- Council district:
- 43
HPD violations
Recent HPD violation details
- Class BInspected Nov 7, 2014§ 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR THROUGHOUT IN THE ENTIRE APARTMENT LOCATED A…
- Class BInspected Nov 7, 2014§ 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR ALL WALLS AND CEILING IN THE ENTIRE APAR…
- Class BInspected Nov 7, 2014§ 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC TILE AT NORTH WALL IN THE BATHROOM LOCATED AT A…
- Class BInspected Nov 7, 2014§ 27-2005 ADMIN. CODE: REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT CEILING IN THE KITCHEN LOCATED AT APT FLR3, 3rd STORY, 1st APARTMENT FROM…
Recent ACRIS activity
Other buildings in this portfolio
- 7016 20 AVENUE17 violations
Frequently asked questions about 8510 21 AVENUE
Who owns 8510 21 AVENUE?
The current registered owner of record for 8510 21 AVENUE per NYC PLUTO is 8510 21ST AVENUE HOLDINGS, LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 8510 21 AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 8510 21 AVENUE in the last 5 years of recorded NYC public-records data. NYC ACRIS coverage extends back to 1966; an absence in our 5-year window typically means either the BBL has not transacted recently, or the most recent recorded document is not a DEED type (such as a refinance rather than a sale).
How many HPD violations does 8510 21 AVENUE have?
No open HPD housing-maintenance code violations are on record for 8510 21 AVENUE as of May 18, 2026. The building is registered with NYC HPD's landlord-registration system. HPD violation data is pulled daily from the NYC Open Data violations feed.
What is the assessed value of 8510 21 AVENUE?
NYC Department of Finance assesses 8510 21 AVENUE at $104K for the current tax year. NYC assesses property at a fraction of estimated market value (the assessment ratio varies by tax class — 6% for tax class 1 one-to-three-family dwellings, approximately 45% for tax class 2 rental apartment buildings), so the market value implied by this assessment is meaningfully higher. Assessment data is published by NYC Department of Finance.
What building class is 8510 21 AVENUE and what does that mean?
8510 21 AVENUE is NYC building class S2 — Two-family + store. A two-family dwelling with one store unit. Building class is assigned by NYC Department of Finance and recorded in PLUTO; it determines the property's tax class and the regulatory regime that applies.