20 Seaman 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
- 10 open hazardous (Class C) violations
- Built before 1939 (city records: 1926) — likely subject to NYC lead-paint rules
- Rent-stabilized: 65 units registered
About this building
The building’s floor space is 4.2 times the size of its lot: 50,754 sq ft of building on an 11,975 sq ft lot.
Comparisons with neighboring buildings, as of November 10, 2026.
20 Seaman Avenue
Open in Google Street View ↗
- City records show 22 open HPD violations, 10 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 2019 — why has it stayed open this long, and is it in or near this unit?
- DHCR’s most recent registration lists 65 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.
20 Seaman Avenue sits in Manhattan, ZIP 10034. The closest subway is Dyckman St (A) (2-minute walk), served by the A line.
Building Condition
Oldest open violation: December 2019 · Most recent: October 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.
- 2026-10-16
- 2026-09-24
- 2026-09-01
- 2025-08-20
- 2025-08-20
- 2026-10-16
- 2025-08-20
- 2025-08-20
- 2025-07-21
- 2025-07-21
- Class C · 10 open · penalty 150 · (15/ea)
- Class B · 8 open · penalty 40 · (5/ea)
- Class A · 4 open · penalty 4 · (1/ea)
- 2026-05-01 · Apt BLDG · EMERGENCY · HEAT/HOT WATER
- 2026-04-08 · Apt BLDG · EMERGENCY · HEAT/HOT WATER
- 2026-04-07 · Apt BLDG · EMERGENCY · HEAT/HOT WATER
- 1996-02-22
- 1995-08-29
- 1995-04-17
4 lead-paint hazards cited and later remediated (most recent 2025); no open hazards on record. Remediation addresses the cited conditions, not necessarily every painted surface.
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 1926). 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.
The Building
Neighborhood & Environment
~1 block 300m
~2-3 blocks
- PETIT LARCENY: 62
- HARRASSMENT 2: 50
- ASSAULT 3 & RELATED OFFENSES: 41
- VEHICLE AND TRAFFIC LAWS: 41
- GRAND LARCENY: 36
- Noise - Street/Sidewalk: 600
- Noise - Commercial: 257
- Illegal Parking: 174
- PLUMBING: 171
- Noise - Vehicle: 169
- 242 DYCKMAN ST
- 242 DYCKMAN ST
- 270 DYCKMAN ST
- PS 176
- Amistad Dual Language School
- Muscota
- Harold O. Levy School
- High School for Excellence and Innovation
- PS 176
- High School for Excellence and Innovation
- Inwood Early College for Health and Information Te
- City College Academy of the Arts
Levels add up to 17 because a school serving K-8 is listed under both Elementary and Middle. 14 distinct schools are within range.
- Dyckman St
- Inwood-207 St
- Dyckman St
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- New Camerata Opera Inc
- Up Theater Company, Inc.
- Inwood Library–joseph And Sheila Rosenblatt Building
- Lt. Wm. Tighe Triangle
- Equity Project Charter School 2
- Fresh Squeezed Opera Company
Internet providers serving this area
Internet providers available in this area — including fiber:
- Spectrum Cable Fiber Up to 1,000 Mbps down · 1,000 Mbps up
- Verizon Fiber Up to 980 Mbps down · 880 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.
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