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NYC Building Records · BBL 3055080001

5821 21 AVENUE

Brooklyn · Block 5508 · Lot 1 · Two-family frame (Class B2)

5821 21 AVENUE is a Class B2 (two-family frame) building in Brooklyn (BBL 3055080001) built in 1925, with 2 residential units across 2 floors.

The building is in NYC community district 312, council district 44, zoning district R5, on a 1,427-square-foot lot with a building footprint of 1,600 square feet.

The current registered owner of record per NYC PLUTO is GLUCK, SARAH.

MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

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

GLUCK, SARAH

Most recent deed

Last transferred on Nov 28, 2017 for $650K to Gluck, Sarah.
Previous owner: Leonard Edward Janiszewski, Jr.; Leonard E. Janiszewski; Estate Of James Henry Janiszewski; Estate Of Leonard Janiszewski; Leonard E. Janiszewski Iii, Administrator; Janiszewski, Leonard E Iii
Cash sale: no recorded mortgage tied to this transfer.
🔒 See full deed history for this building →

Recent ACRIS documents (last 3)

DateTypeAmountParties
Nov 28, 2017DEED$650KParties redacted — full names in MetroDeeds Scout+
Nov 28, 2017DEED$10Parties redacted — full names in MetroDeeds Scout+
Apr 11, 2008DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
🔒 Unlock party names + multi-decade history →

Building stats

Units
2
Year built
1925
Class
B2
Borough
Brooklyn
Zoning:
R5
Lot size:
1,427 sqft
Building area:
1,600 sqft
Floors:
2
Assessed value:
$69K
Community district:
312
Council district:
44

HPD violations

0 open
Most severe class on record: Class B
No open violations on record. Source: NYC HPD.
🔒 See full violation history →

Recent HPD violation details

Most recent 4 violations issued by NYC HPD at this address:
  • Class IInspected Jan 30, 2026
    § 27-2142 ADM CODE - THE PREMISES OR APTS. HAVE BEEN VACATED BY THE DEPARTMENT AND CANNOT BE REOCCUPIED UNTIL SO ORDERED AFTER PROOF OF COMP…
  • Class BInspected Jan 13, 2026
    § 27-2073 ADM CODE - DISCONTINUE UNLAWFUL COOKING SPACE OR FILE PLANS AND APPLICATION WITH THIS DEPARTMENT TO LEGALIZE SAME, IF LAWFULLY FEA…
  • Class BInspected Jan 13, 2026
    § 27-2087 ADM CODE - DISCONTINUE USE OF ROOMS FOR LIVING, DISCONNECT PLUMBING FIXTURES WHERE ILLEGAL AND PROPERLY SEAL PIPE CONNECTIONS RESI…
  • Class BInspected Jan 13, 2026
    § 9, 170, 171, 300, 301, 302 M.D.LAW-FILE PLANS AND APPLICATION AND OBTAIN A CERTIFICATE OF OCCUPANCY TO LEGALIZE THE CONVERSION FROM A PRIV…
🔒 See full violation history with closure dates →

Recent ACRIS activity

3 documents in the last 5 years (most recent Nov 28, 2017).

Other buildings in this portfolio

Gluck, Sarah controls 8 NYC buildings. Top properties by HPD violation count:

Frequently asked questions about 5821 21 AVENUE

Who owns 5821 21 AVENUE?

The current registered owner of record for 5821 21 AVENUE per NYC PLUTO is GLUCK, SARAH. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 5821 21 AVENUE last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 5821 21 AVENUE 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 5821 21 AVENUE have?

No open HPD housing-maintenance code violations are on record for 5821 21 AVENUE. The building is not registered with NYC HPD's landlord-registration system, which is typical for owner-occupied 1-2 family dwellings. HPD violation data is pulled daily from the NYC Open Data violations feed.

What is the assessed value of 5821 21 AVENUE?

NYC Department of Finance assesses 5821 21 AVENUE at $69K 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 5821 21 AVENUE and what does that mean?

5821 21 AVENUE is NYC building class B2 — Two-family frame. A two-family residential building of frame construction. 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.

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