1501 Undercliff Avenue
Class B
Class C
12 months to Aug 2026
rent-stabilized with
DHCR (most recent year)
units (PLUTO)
12 months through March 2026
rent
min walk
(311 complaints)
errands grade
nearby
Top insights
- 13 open hazardous (Class C) violations
- Built before 1939 (city records: 1929) — likely subject to NYC lead-paint rules
- Rent-stabilized: 98 of 98 units
About this building
The building’s floor space is 4.3 times the size of its lot: 129,677 sq ft of building on a 30,400 sq ft lot. 98 apartments — more than 94% of the 590 residential buildings we cover in ZIP 10453 have.
Comparisons with neighboring buildings, as of October 21, 2026.
1501 Undercliff Avenue
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- City records show 31 open HPD violations, 13 immediately hazardous (Class C) at this building. Ask which are still unresolved in the unit and the landlord’s timeline to clear them.
- The oldest open violation on record dates to 2008 — why has it stayed open this long, and is it in or near this unit?
- DHCR’s most recent registration lists 98 rent-stabilized units here. Ask whether this specific unit is one of them, and ask the landlord for its legal regulated rent and lease history.
- Confirm the condition behind the most recent open violation was actually repaired, not just marked closed: Abate the infestation consisting of roaches in the entire apartment.
- Confirm in person that the immediately-hazardous (Class C) conditions — typically heat, hot water, leaks, mold or pests — are genuinely fixed, not just marked closed.
1501 Undercliff Avenue sits in Bronx, ZIP 10453. No subway stations are within an 800-meter walk — expect to rely on buses or rideshare.
Building Condition
Oldest open violation: April 2008 · Most recent: September 2026. HPD marks a violation open until it is certified as corrected, so an old date can mean an unresolved condition or a repair that was never certified.
- 2026-09-21
- 2026-09-21
- 2026-03-04
- 2025-05-29
- 2025-05-29
- 2026-09-21
- 2025-05-29
- 2022-05-03
- 2021-11-20
- 2021-11-20
- Class C · 13 open · penalty 195 · (15/ea)
- Class B · 10 open · penalty 50 · (5/ea)
- Class A · 8 open · penalty 8 · (1/ea)
- 2026-07-03 · Apt BLDG · IMMEDIATE EMERGENCY · PLUMBING
- 2026-07-02 · Apt MULTIP · IMMEDIATE EMERGENCY · PLUMBING
- 2026-06-24 · Apt 1A · IMMEDIATE EMERGENCY · ELECTRIC
- 2026-07-08
- 2025-06-30
- 2025-04-30
- 2025-03-27
- 2019-01-31 "CYCLE 8B NO REPORT FILED BY 2/21/2018"
- 2012-08-08 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
- 2011-02-23 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
3 open lead-paint hazard violations on record (most recent 2023). These are HPD violations recorded against the building — not a test of any specific apartment.
29 earlier hazards cited and remediated.
Under NYC Local Law 1 (Admin Code §27-2056.5), lead paint is presumed present in common areas and in apartments where a child under 6 resides, in multiple dwellings built before 1960 (this building: built 1929). The presumption stands unless the owner obtained a lead-free or lead-safe exemption from HPD. Those exemption records aren’t published as open data, so we can’t confirm one either way.
Also on record: 1 procedural §27-2056 violation (failure to file required lead paperwork, most recent 2024) — a records failure, not evidence of a lead hazard.
The Building
Neighborhood & Environment
~1 block 300m
~2-3 blocks
- HARRASSMENT 2: 83
- ASSAULT 3 & RELATED OFFENSES: 65
- VEHICLE AND TRAFFIC LAWS: 58
- PETIT LARCENY: 49
- FELONY ASSAULT: 39
- Noise - Street/Sidewalk: 411
- Noise - Residential: 159
- HEAT/HOT WATER: 152
- Illegal Parking: 120
- UNSANITARY CONDITION: 117
- 1440 UNIVERSITY AVE
- 1579 UNDERCLIFF AVE
- 1601 UNIVERSITY AVENUE
- P.S. 199X - The Shakespeare School
- Washington Heights Expeditionary Learning School
- P.S. 011 Highbridge
- Washington Heights Expeditionary Learning School
- J.H.S. 143 Eleanor Roosevelt
- I.S. 229 Roland Patterson
- Washington Heights Expeditionary Learning School
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade B
- Grade B
- Park
- Park
- Roberto Clemente
- Techlinc Project, Inc.
- Aim High - S Bronx Headstart Site 2
- P.s. 199x - The Shakespeare School
Internet providers serving this area
Internet providers available in this area — including fiber:
- Verizon Fiber Up to 2,300 Mbps down · 2,300 Mbps up
- Optimum Cable Up to 940 Mbps down · 35 Mbps up
How to check internet providers before signing an NYC lease →
Source: FCC Broadband Data Collection (NY, rev. May 2026). Wired broadband only — cable + fiber. DSL, satellite, and fixed-wireless not included. Block-level data; actual availability may vary by building.
Market & Availability
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