674A 6 AVENUE
674A 6 AVENUE is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3008910040) built in 1899, with 3 residential units across 3 floors.
The building is in NYC community district 307, council district 39, zoning district R6B, on a 1,140-square-foot lot with a building footprint of 2,109 square feet.
The current registered owner of record per NYC PLUTO is MAS PROPERTIES I 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 OfficerABRAHAM SANDBERG
- Corporate OwnerMAS PROPERTIES I LLC
- Managing AgentAMS MANAGEMENT I LLC
- Site ManagerJEFF SOMERS
Most recent deed
Recent ACRIS documents (last 3)
Building stats
- Zoning:
- R6B
- Lot size:
- 1,140 sqft
- Building area:
- 2,109 sqft
- Floors:
- 3
- Assessed value:
- $126K
- Community district:
- 307
- Council district:
- 39
HPD violations
Recent HPD violation details
Recent ACRIS activity
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- 223 21 STREET30 violations
Frequently asked questions about 674A 6 AVENUE
Who owns 674A 6 AVENUE?
The current registered owner of record for 674A 6 AVENUE per NYC PLUTO is MAS PROPERTIES I LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 674A 6 AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 674A 6 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 674A 6 AVENUE have?
No open HPD housing-maintenance code violations are on record for 674A 6 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 674A 6 AVENUE?
NYC Department of Finance assesses 674A 6 AVENUE at $126K 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 674A 6 AVENUE and what does that mean?
674A 6 AVENUE is NYC building class C0 — Walk-up, 3+ families. A 3-to-6-story walk-up apartment building (no elevator), 3 or more 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.