141 GUERNSEY STREET
141 GUERNSEY STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3026170021) built in 1928, with 8 residential units across 4 floors.
The building is in NYC community district 301, council district 33, zoning district R6B, on a 2,500-square-foot lot with a building footprint of 7,000 square feet.
The current registered owner of record per NYC PLUTO is KARWOWSKI, DOROTHY.
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 OfficerCHRISTOPHER KARWOWSKI
- Managing AgentDOROTHY KARWOWSKI
Most recent deed
Recent ACRIS documents (last 2)
Building stats
- Zoning:
- R6B
- Lot size:
- 2,500 sqft
- Building area:
- 7,000 sqft
- Floors:
- 4
- Assessed value:
- $1.6M
- Community district:
- 301
- Council district:
- 33
HPD violations
Recent HPD violation details
- Class BInspected Feb 21, 2020§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AT PUBLIC HALL, 4th STORY
- Class BInspected Feb 21, 2020§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AT PUBLIC HALL, 1st STORY
- Class BInspected Feb 21, 2020§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF MOTION SENSOR AT ELECTRICAL LIGHT FIXTURE AT CEILING VESTIBULE , 1st STORY
- Class CInspected Feb 21, 2020§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF HOT WATER EXCEEDING THE MAXIMUM TEMPTURE OF 130 DEGREES IN THE ENTIRE APAR…
- Class CInspected Aug 18, 2019§ 27-2005, 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ... IN THE ENTRANCE LOCATED AT APT 1L, 1st STORY, APARTMENT AT EAST
Recent ACRIS activity
Frequently asked questions about 141 GUERNSEY STREET
Who owns 141 GUERNSEY STREET?
The current registered owner of record for 141 GUERNSEY STREET per NYC PLUTO is KARWOWSKI, DOROTHY. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 141 GUERNSEY STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 141 GUERNSEY STREET 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 141 GUERNSEY STREET have?
No open HPD housing-maintenance code violations are on record for 141 GUERNSEY 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 141 GUERNSEY STREET?
NYC Department of Finance assesses 141 GUERNSEY STREET at $1.58M 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 141 GUERNSEY STREET and what does that mean?
141 GUERNSEY 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.