308 21 STREET
308 21 STREET is a Class D1 (elevator, semi-fireproof) building in Brooklyn (BBL 3008980012) built in 2001, with 10 residential units across 5 floors.
The building is in NYC community district 307, council district 39, zoning district R6B, on a 4,600-square-foot lot with a building footprint of 10,975 square feet.
The current registered owner of record per NYC PLUTO is RDL 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 OfficerROSEMARIE TOMASSETTI
- Corporate OwnerRDL REALTY LLC
Most recent deed
Recent ACRIS documents (last 1)
Building stats
- Zoning:
- R6B
- Lot size:
- 4,600 sqft
- Building area:
- 10,975 sqft
- Floors:
- 5
- Assessed value:
- $1.5M
- Community district:
- 307
- Council district:
- 39
HPD violations
Recent HPD violation details
- Class AInspected Jun 13, 2025(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 AInspected Mar 30, 2023(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 AInspected Mar 9, 2022(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 AInspected Apr 19, 2021(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 AInspected Jul 16, 2019§ 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON…
Recent ACRIS activity
Other buildings in this portfolio
- 309 22 STREET18 violations
Frequently asked questions about 308 21 STREET
Who owns 308 21 STREET?
The current registered owner of record for 308 21 STREET per NYC PLUTO is RDL 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 308 21 STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 308 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 308 21 STREET have?
No open HPD housing-maintenance code violations are on record for 308 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 308 21 STREET?
NYC Department of Finance assesses 308 21 STREET at $1.46M 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 308 21 STREET and what does that mean?
308 21 STREET is NYC building class D1 — Elevator, semi-fireproof. A semi-fireproof elevator 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.