340 21 STREET
340 21 STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3008980032) built in 1931, with 8 residential units across 4 floors.
The building is in NYC community district 307, council district 39, zoning district R6B, on a 2,504-square-foot lot with a building footprint of 5,884 square feet.
The current registered owner of record per NYC PLUTO is 340 REALTY 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 OfficerMEIR KOHN
- Corporate Owner340 REALTY LLC
- Managing Agent340 REALTY
- Site ManagerMICHAEL CARABALO
Most recent deed
Building stats
- Zoning:
- R6B
- Lot size:
- 2,504 sqft
- Building area:
- 5,884 sqft
- Floors:
- 4
- Assessed value:
- $1.2M
- Community district:
- 307
- Council district:
- 39
HPD violations
Recent HPD violation details
- Class AInspected May 1, 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 IInspected Nov 19, 2025§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class BInspected Mar 6, 2025§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE STUCCO AT SOUTH WALL OF THE BUILDING , 1st STORY
- Class BInspected Mar 6, 2025§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3, 2nd STORY
- Class CInspected Mar 6, 2025§ 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…
Frequently asked questions about 340 21 STREET
Who owns 340 21 STREET?
The current registered owner of record for 340 21 STREET per NYC PLUTO is 340 REALTY LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 340 21 STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 340 21 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 340 21 STREET have?
No open HPD housing-maintenance code violations are on record for 340 21 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 340 21 STREET?
NYC Department of Finance assesses 340 21 STREET at $1.20M 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 340 21 STREET and what does that mean?
340 21 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.