305 MARTENSE STREET
305 MARTENSE STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3048680083) built in 1925, with 28 residential units across 4 floors.
The building is in NYC community district 317, council district 40, zoning district R6, on a 7,200-square-foot lot with a building footprint of 21,840 square feet.
The current registered owner of record per NYC PLUTO is MARTENSE REALTY LLC.
The most recent ACRIS deed transfer for this BBL was recorded on April 24, 2024 when Adele Realty Llc conveyed the property to Martense Realty Llc for $5.16M. The transaction was recorded as cash (no paired mortgage instrument).
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 OfficerMAK WIN
- Corporate Owner305 MARTENSE REALTY LLC
- Managing AgentRHAMCO
- Site ManagerGERSON AGUILAR
Most recent deed
Recent ACRIS documents (last 4)
Building stats
- Zoning:
- R6
- Lot size:
- 7,200 sqft
- Building area:
- 21,840 sqft
- Floors:
- 4
- Assessed value:
- $650K
- Community district:
- 317
- Council district:
- 40
HPD violations
Recent HPD violation details
- Class AInspected Apr 18, 2026§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... AT AROUND WINDOW IN THE KITCHEN LOCATED AT APT 4E, 4th…
- Class CInspected Apr 18, 2026§ 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED ELECTRICAL WIRING AT NORTH WALL…
- Class CInspected Apr 18, 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 BInspected Mar 9, 2026§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF GARBAGE AT PUBLIC HALL, 1st STORY
- Class BInspected Mar 9, 2026§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE GARBAGE AT EAST YARD
Recent ACRIS activity
Other buildings in this portfolio
- 110 MARTENSE STREET461 violations
- 323 MARTENSE STREET193 violations
- 307 MARTENSE STREET189 violations
- 158 MARTENSE STREET53 violations
Frequently asked questions about 305 MARTENSE STREET
Who owns 305 MARTENSE STREET?
The current registered owner of record for 305 MARTENSE STREET per NYC PLUTO is MARTENSE REALTY LLC. The most recent ACRIS deed transfer for this BBL was recorded on April 24, 2024 when the property was conveyed to Martense Realty Llc. PLUTO ownership is refreshed monthly by NYC Department of Finance; the registered owner may not reflect transactions recorded within the last 30 days.
When was 305 MARTENSE STREET last sold?
The most recent ACRIS deed transfer for 305 MARTENSE STREET was recorded on April 24, 2024, when Adele Realty Llc conveyed the property to Martense Realty Llc for $5.16M. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 305 MARTENSE STREET have?
No open HPD housing-maintenance code violations are on record for 305 MARTENSE STREET 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 305 MARTENSE STREET?
NYC Department of Finance assesses 305 MARTENSE STREET at $650K 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 305 MARTENSE STREET and what does that mean?
305 MARTENSE STREET is NYC building class C1 — Walk-up, over six families. A 3-to-6-story walk-up apartment building with more than 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.