8321 21 AVENUE
8321 21 AVENUE is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3063300001) built in 1922, with 6 residential units across 3 floors.
The building is in NYC community district 311, council district 43, zoning district R5, on a 3,500-square-foot lot with a building footprint of 5,520 square feet.
The current registered owner of record per NYC PLUTO is 8321 21ST AVENUE 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 OfficerALAN GELBSTEIN
- Corporate Owner8321 21 AVE LLC
- Managing Agent8321 21st Ave LLC
Most recent deed
Recent ACRIS documents (last 1)
Building stats
- Zoning:
- R5
- Lot size:
- 3,500 sqft
- Building area:
- 5,520 sqft
- Floors:
- 3
- Assessed value:
- $447K
- Community district:
- 311
- Council district:
- 43
HPD violations
Recent HPD violation details
- Class IInspected Nov 20, 2023§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class AInspected Mar 20, 2023(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class AInspected Feb 22, 2022(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class IInspected Feb 22, 2022§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class AInspected Apr 6, 2021(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
Recent ACRIS activity
Frequently asked questions about 8321 21 AVENUE
Who owns 8321 21 AVENUE?
The current registered owner of record for 8321 21 AVENUE per NYC PLUTO is 8321 21ST AVENUE LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 8321 21 AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 8321 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 8321 21 AVENUE have?
No open HPD housing-maintenance code violations are on record for 8321 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 8321 21 AVENUE?
NYC Department of Finance assesses 8321 21 AVENUE at $447K 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 8321 21 AVENUE and what does that mean?
8321 21 AVENUE is NYC building class C2 — Walk-up, five to six. A 3-to-6-story walk-up apartment building, 5-6 residential units. 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.