523 West 143 Street
Manhattan · 10031 · BBL 1020750011
523 West 143 Street is a multi-family elevator building in Hamilton Heights, Manhattan, ZIP 10031. City records date it to 1910 and count 24 residential units. The city's property file lists the owner of record as 523-27 W 143 St Etc. Its most recent total assessed value is $1.2M.
Taxes and assessed value
The city's Department of Finance assessed this lot at $1.2M for the 2026 tax year. That works out to $51K per residential unit. Assessed value is what the city taxes, not what the building would sell for, and the two routinely differ by a wide margin. The bill itself turns on the tax class rate and on any exemptions or abatements attached to the lot, neither of which is published here.
What the eviction record shows
No executed eviction is on record at 523 West 143 Street in the citywide marshal file, which runs from April 2024.
Rent stabilization at this address
No DHCR rent-stabilization registration is on file for 523 West 143 Street in the years PulseCities holds. Absence is not proof: an owner who stops registering leaves the same gap as a building that never had stabilized units. Checking your own apartment starts with the free rent history. How to check rent-stabilized status →
Open code violations
HPD and DOB inspectors have written 25 violations against this building, of which 25 remain unresolved. The most serious open grade here is immediately hazardous, with 6 open violations.
Classes run A (non-hazardous) to C (immediately hazardous); DOB class I carries a vacate order. Source: NYC HPD violations, current through August 26, 2026.
Violation history
| Violation | Issued | Class |
|---|---|---|
| Post sign on wall of entrance story bearing name, address including apartment number if any, and telephone num…Nov Sent Out | Jul 2, 2026 | A |
| Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the ma…Nov Sent Out | Jul 2, 2026 | A |
| Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding…Nov Sent Out | Jul 2, 2026 | A |
| Post notice, in form approved by the department, stating the name and location of the person designated by the…Nov Sent Out | Jul 2, 2026 | C |
| Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of…Nov Sent Out | Jul 2, 2026 | A |
| Post a proper notice of carbon monoxide detecting device requirements, in a form approved by commissioner, in…Nov Sent Out | Jul 2, 2026 | A |
| Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the depa…Nov Sent Out | Jul 2, 2026 | A |
| And dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near ma…Nov Sent Out | Jul 2, 2026 | A |
The 8 most recent violations written against this building, newest first, 8 of them still open. Each row is the inspector's own wording with the statute citation removed. Source: NYC HPD violations, current through August 26, 2026.
311 complaint history
9 complaints in the past 12 months
NYC 311 housing and building complaints logged for this address. Source: NYC 311, current through August 26, 2026.
How 523 West 143 Street compares in 10031
PulseCities tracks 1,598 lots in 10031, of which 228 carry an executed eviction from the marshal record, which starts in April 2024, and 85 carry a deed from the shorter ACRIS window. 10031 scores 51.7 out of 100 for displacement pressure, 14 of 177 scored NYC ZIP codes. The full signal breakdown for Hamilton Heights →
Watch 523 West 143 Street
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Questions about 523 West 143 Street
Who owns 523 West 143 Street?
The most recent deed on file for 523 West 143 Street names 523-27 W 143 St Etc. Deeds record the party that took title, which is often a holding company rather than the operator managing the building.
Has 523 West 143 Street changed hands recently?
No deed for 523 West 143 Street appears in the ACRIS records PulseCities holds. That means no transfer has been published for this lot in the current window, not that the building has never been sold.
Have there been evictions at 523 West 143 Street?
No executed eviction at 523 West 143 Street appears in the NYC evictions dataset, which PulseCities holds from April 2024 forward. Executed evictions are the end of the process, so a building with none may still have active housing court cases.
Is 523 West 143 Street rent stabilized?
No DHCR registration for 523 West 143 Street appears in the years PulseCities holds. That is a gap in the registration record rather than an answer about any apartment, and the free rent history from NYS Homes and Community Renewal is what settles it.
What is 523 West 143 Street assessed at for property taxes?
The Department of Finance assessed the lot at $1.2M for the 2026 tax year. That is the figure the city taxes rather than a sale price, and the bill depends on the tax class rate and on any exemptions on the lot.
What is the displacement risk around 523 West 143 Street?
10031 (Hamilton Heights) scores 51.7 out of 100 on the PulseCities displacement index. The score reads five ZIP-level signals: LLC acquisition rate, permit intensity, 311 complaint volume, executed evictions, and serious HPD violations. It describes the area around the building, not the building itself.
Sourced from NYC public records: ACRIS deeds, DOB permits, the NYC evictions dataset, and 311. Records reflect what agencies have published and can lag events.