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NYC Building Records · BBL 2057710054

3621B GREYSTONE AVENUE

Bronx · Block 5771 · Lot 54 · Walk-up, pre-1929 (Class C3)

3621B GREYSTONE AVENUE is a Class C3 (walk-up, pre-1929) building in Bronx (BBL 2057710054) built in 1980, with 4 residential units across 3 floors.

The building is in NYC community district 208, council district 11, zoning district R6, on a 2,242-square-foot lot with a building footprint of 3,100 square feet.

The current registered owner of record per NYC PLUTO is 3621 GREYSTONE AVE 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

3621 GREYSTONE AVE LLC
HPD-registered head officer: BRENDAN OSULLIVAN

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerBRENDAN OSULLIVAN
  • Corporate Owner3621 GREYSTONE AVE LLC

Most recent deed

Last transferred on Jan 19, 2021 to 3621 GREYSTONE AVE LLC.
Previous owner: O'SULLIVAN, BRENDAN
Cash sale: no recorded mortgage tied to this transfer.
🔒 See all transfers before the 2021 sale →

Recent ACRIS documents (last 1)

DateTypeAmountParties
Jan 19, 2021DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the redacted buyer/seller name above →

Building stats

Units
4
Year built
1980
Class
C3
Borough
Bronx
Zoning:
R6
Lot size:
2,242 sqft
Building area:
3,100 sqft
Floors:
3
Assessed value:
$342K
Community district:
208
Council district:
11

HPD violations

0 open
Most severe class on record: Class C (immediately hazardous)
No open violations on record. Source: NYC HPD.
🔒 See every closed violation + inspection history →

Recent HPD violation details

Most recent 5 violations issued by NYC HPD at this address:
  • Class AInspected Jun 5, 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 Jan 17, 2025
    § 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON…
  • Class AInspected Jan 17, 2025
    § 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX MISS…
  • Class AInspected Jan 17, 2025
    § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES…
  • Class AInspected Jan 17, 2025
    § 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME READILY ACCESSIBLE FOR SIGNA…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

1 document in the last 5 years (most recent Jan 19, 2021).

Other buildings in this portfolio

3621 GREYSTONE AVE LLC controls 3 NYC buildings. Top properties by HPD violation count:

Frequently asked questions about 3621B GREYSTONE AVENUE

Who owns 3621B GREYSTONE AVENUE?

The current registered owner of record for 3621B GREYSTONE AVENUE per NYC PLUTO is 3621 GREYSTONE AVE LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 3621B GREYSTONE AVENUE last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 3621B GREYSTONE 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 3621B GREYSTONE AVENUE have?

No open HPD housing-maintenance code violations are on record for 3621B GREYSTONE AVENUE 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 3621B GREYSTONE AVENUE?

NYC Department of Finance assesses 3621B GREYSTONE AVENUE at $342K 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 3621B GREYSTONE AVENUE and what does that mean?

3621B GREYSTONE AVENUE is NYC building class C3 — Walk-up, pre-1929. A walk-up apartment building constructed before 1929, typically 3-6 stories and often rent-stabilized. 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.

More from MetroDeeds

Go deeper on this building

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Every deed, every violation, court cases, mortgages, and operator portfolio — in one panel.
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