840 ST MARKS AVENUE
840 ST MARKS AVENUE is a Class D4 (elevator coop, 6+ stories) building in Brooklyn (BBL 3012280037) built in 1926, with 54 residential units across 6 floors.
The building is in NYC community district 308, council district 36, zoning district R6, on a 18,750-square-foot lot with a building footprint of 66,222 square feet.
The current registered owner of record per NYC PLUTO is 840-50 ST MARKS AV HDFC.
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 OfficerDavetta Hensen
- Corporate Owner840-850 St Marks Avenue HDFC
- Managing AgentFinger Management Realty LLC
- Site ManagerStephen Steward
Most recent deed
Building stats
- Zoning:
- R6
- Lot size:
- 18,750 sqft
- Building area:
- 66,222 sqft
- Floors:
- 6
- Assessed value:
- $2.4M
- Community district:
- 308
- Council district:
- 36
HPD violations
Recent HPD violation details
- Class CInspected May 7, 2026§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MIS…
- Class CInspected May 7, 2026HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2C, 2nd STORY, 2nd APARTMENT FROM…
- Class BInspected May 7, 2026§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR NEAR RADIATOR IN THE 1st ROOM FROM EAST LOCATED…
- Class AInspected Oct 19, 2025§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD BASE BOARD AT NORTH WALL IN THE 2nd ROOM FROM EAST LOC…
- Class BInspected Oct 19, 2025§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT NORTH WALL IN THE 2nd ROOM FROM EAST LO…
Frequently asked questions about 840 ST MARKS AVENUE
Who owns 840 ST MARKS AVENUE?
The current registered owner of record for 840 ST MARKS AVENUE per NYC PLUTO is 840-50 ST MARKS AV HDFC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 840 ST MARKS AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 840 ST MARKS 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 840 ST MARKS AVENUE have?
No open HPD housing-maintenance code violations are on record for 840 ST MARKS 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 840 ST MARKS AVENUE?
NYC Department of Finance assesses 840 ST MARKS AVENUE at $2.36M 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 840 ST MARKS AVENUE and what does that mean?
840 ST MARKS AVENUE is NYC building class D4 — Elevator coop, 6+ stories. A 6+ story elevator cooperative apartment building. 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.