3921 5 AVENUE
3921 5 AVENUE is a Class C7 (walk-up + store) building in Brooklyn (BBL 3009130001) built in 1925, with 16 residential units across 4 floors.
The building is in NYC community district 307, council district 38, zoning district R6A, on a 2,517-square-foot lot with a building footprint of 8,760 square feet.
The current registered owner of record per NYC PLUTO is MAZZA, MICHAEL.
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
- Site ManagerDOLORES FERRENTINO
Most recent deed
Recent ACRIS documents (last 2)
Building stats
- Zoning:
- R6A
- Lot size:
- 2,517 sqft
- Building area:
- 8,760 sqft
- Floors:
- 4
- Assessed value:
- $905K
- Community district:
- 307
- Council district:
- 38
HPD violations
Recent HPD violation details
- Class AInspected Apr 30, 2026(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 BInspected Jul 10, 2025§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF FREEZER AND HOUSEHOLD ITEMS AT PUBLIC HALL, 1st STORY
- Class AInspected Jun 5, 2025(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 BInspected Jul 17, 2024§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 7, 4th STORY, 1st…
- Class CInspected Jul 17, 2024HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM W…
Recent ACRIS activity
Frequently asked questions about 3921 5 AVENUE
Who owns 3921 5 AVENUE?
The current registered owner of record for 3921 5 AVENUE per NYC PLUTO is MAZZA, MICHAEL. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 3921 5 AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 3921 5 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 3921 5 AVENUE have?
No open HPD housing-maintenance code violations are on record for 3921 5 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 3921 5 AVENUE?
NYC Department of Finance assesses 3921 5 AVENUE at $905K 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 3921 5 AVENUE and what does that mean?
3921 5 AVENUE is NYC building class C7 — Walk-up + store. A walk-up apartment building with a store on the ground floor. 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.