NYC Building Records · BBL 3008710016
504 PROSPECT AVENUE
Brooklyn · Block 871 · Lot 16 · Walk-up apartment (Class C0)
Owner of record
WALSH, JOHN J
HPD registered contacts
People legally accountable to HPD for conditions at this building, in registration-priority order:
- Managing AgentJOHN WALSH
- Site ManagerWILLIAM WALSH
Most recent deed
Last transferred on May 16, 2012 for $1.2M to Walsh, William; Walsh, John J.
Previous owner: 504 Prospect Llc
Cash sale: no recorded mortgage tied to this transfer.
🔒 See full deed history for this building →Recent ACRIS documents (last 5)
DateTypeAmountParties
May 18, 2023AGMT$372KParties redacted — full names in MetroDeeds Scout+
May 18, 2023MTGE$16KParties redacted — full names in MetroDeeds Scout+
May 16, 2012DEED$1.2MParties redacted — full names in MetroDeeds Scout+
Nov 4, 2011MTGE$522KParties redacted — full names in MetroDeeds Scout+
Nov 4, 2011DEED$870KParties redacted — full names in MetroDeeds Scout+
🔒 Unlock party names + multi-decade history →Building stats
Units
3
Year built
1920
Class
C0
Borough
Brooklyn
- Zoning:
- R5B
- Lot size:
- 1,600 sqft
- Building area:
- 3,420 sqft
- Floors:
- 3
- Assessed value:
- $214K
- Community district:
- 307
- Council district:
- 39
HPD violations
0 open
Most severe class on record: Class A
No open violations on record. Source: NYC HPD.
🔒 See full violation history →Recent HPD violation details
Most recent 5 violations issued by NYC HPD at this address:
- Class AInspected May 5, 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 AInspected Jun 10, 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 Apr 11, 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 24, 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 1, 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…
Recent ACRIS activity
5 documents in the last 5 years (most recent May 18, 2023).
Other buildings in this portfolio
Walsh, William; Walsh, John J controls 6 NYC buildings. Top properties by HPD violation count:
- 553 17 STREET26 violations
- 642 72 STREET16 violations
- 252 6 AVENUE10 violations
- 5619 6 AVENUE9 violations
More from MetroDeeds
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