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Property Audit ReportBBL 1010770020Generated Jun 11, 2026
Elevator apt
521 West 48 Street
Overall
Caution — Review Before Signing
Caution — Review Before Signing
Open Violations
5
DOB + HPD
Unpaid Fines
$43k
OATH / ECB
Flood Zone
X
FEMA designation
Audit Score
75/100
Composite index
Address-level public record preview
521 West 48 Street is tracked in NYC Property Audit as BBL 1010770020, located in MN, built in 1940, 15 residential units, 5 open DOB/HPD violation signals, $43,125 in unpaid OATH fines, FEMA flood zone X. The free preview keeps address-level facts crawl-visible while the full due-diligence report remains available in the audit.
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Key Findings
4 items
5 open violations on record· DOB · HPD
Annual property tax estimated at ~$306,810 (Tax Class 2)· NYC DOF
Last sold for $7,900,000 in October 2011· ACRIS
Most recent mortgage: $596,632 from NEW YORK COMMUNITY BANK in 2020 (+2 more on Financials)· ACRIS
Building Details
✓ Verified · PLUTO
Building Area
12,613 sf
Commercial Area
2,510 sf
Zoning
R8
Basement
0
Land Use
Mixed Residential & Commercial
Registered Owner
Quick facts
- How many units does this building have?
- 15 residential units and 1 commercial space.
- How tall is this building?
- 7 stories, non-fireproof construction, built in 1940.
- How big is the lot?
- 2,510 sq ft (25 ft × 100.42 ft).
- What's the building class?
- Class D6 — Elevator apt.
- How many buildings are on this lot?
- 1 building on the lot.
Overall Outlook
Long-term signal for residential or commercial viability
Elevated Risk
Maintenance Reliability
Multiple open violations — proceed with caution
36 / 100
Safety
Moderate activity — typical urban
75 / 100
Daily Life
Transit access via 50 St (C E)
~8 min subway
Compliance · 10-year history
Violation timeline
201620182020202220242026
Active5Resolved with debt1Resolved11Hover any dot for detail
Violations & maintenance history
HPD · DOB · OATH — 5 open, 13 resolved
Open Issues — 5
Minor
Failure to comply and submit certificate of corrections for violation # 35676619L issued on 03/14/2024 for failure to maintain building: high- rise to provide exit sign requirement(s) within exits, comply with
OATH · Filed Sep 2025 · Open
Minor
Failure to submit an acceptable required cycle 8B and 9B report of critical examination documenting condition of exterior wall and appurtenances required by 28-302.4 for control #918452. Remedy: submit acceptab
OATH · Filed Apr 2024 · Open
Minor
Work without a permit. Noted: at apartment 7D penthouse level erected full height partition walls with doors to create 2 additional bedrooms., obtain all permits
OATH · Filed Apr 2024 · Open
Minor
Failure to provide exit signs noted 2 floor thru 7 floor exit door in 1 hallway a and b stairs exit sign visible to clearly indicate the direction of egress. Rem: comply with code.
OATH · Filed Mar 2024 · Open
Minor
§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( c) mdl and 28 rcny §25-171: replace or repair the self-closing doors that is missing or defective hinges
Apt 7D · 6th floor · 2nd apartment from west at north
HPD · Filed Jan 2024 · Open ·
Resolved History — 13 (showing 3)
Closed
(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 s website, www. NYC. Gov\hpd, search bed bugs.
HPD · Filed Jun 2025 · Closed
Closed
Occupancy contrary to DOB records. Signed off job #120810051 indicates 7D penthouse level as 1 bedroom w/bathrm inside, open area family rm and 2nd 3PC bathrm. Noted: observed penthouse level converted to 3 bdr
OATH · Filed Apr 2024 · Closed
Closed
Work does not conform to approved construction documents and/or approved amendments. Work does not conform to job #120810051. Noted: at APT 7D penthouse level bedroom converted to 2 bedrms with bathrm out of be
OATH · Filed Apr 2024 · Closed
Nearby buildings to audit
Other properties in the area with active violation history — useful comparables when evaluating risk.