21-81 STEINWAY STREET
21-81 STEINWAY STREET is a Class S5 (elevator + store) building in Queens (BBL 4007970002) built in 1890, with 6 residential units across 3 floors.
The building is in NYC community district 401, council district 22, zoning district R5D, on a 2,500-square-foot lot with a building footprint of 4,650 square feet.
The current registered owner of record per NYC PLUTO is CASTLE GROUP PROPERTY 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 OfficerARGYRIOS MAVROGIORGIS
- Corporate OwnerCASTLE GROUP PROPERTY
Most recent deed
Recent ACRIS documents (last 1)
Building stats
- Zoning:
- R5D
- Lot size:
- 2,500 sqft
- Building area:
- 4,650 sqft
- Floors:
- 3
- Assessed value:
- $457K
- Community district:
- 401
- Council district:
- 22
HPD violations
Recent HPD violation details
- Class AInspected Apr 16, 2024(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 8, 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 16, 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 IInspected Nov 22, 2016§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 CInspected Nov 13, 2011§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR PADLOCKED AT 1 STORY PUBLIC HALL
Recent ACRIS activity
Frequently asked questions about 21-81 STEINWAY STREET
Who owns 21-81 STEINWAY STREET?
The current registered owner of record for 21-81 STEINWAY STREET per NYC PLUTO is CASTLE GROUP PROPERTY LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 21-81 STEINWAY STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 21-81 STEINWAY 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 21-81 STEINWAY STREET have?
No open HPD housing-maintenance code violations are on record for 21-81 STEINWAY 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 21-81 STEINWAY STREET?
NYC Department of Finance assesses 21-81 STEINWAY STREET at $457K 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 21-81 STEINWAY STREET and what does that mean?
21-81 STEINWAY STREET is NYC building class S5 — Elevator + store. An elevator apartment with one or more store 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.