Free Building Background Check

666 West End Avenue

MANHATTAN, NY 10025 BBL 1012400001 355 units · 22 floors · 1927

This building has a severe track record, and our model predicts major ongoing maintenance failures.

HPD violations vs. neighborhood
Class B/C violations on record vs. a typical building in Upper West Side
Above average
avg 14.1
129
Fewer violations More violations

This building has 129 recorded HPD violations, above the Upper West Side average of 14.1.

Rent & eviction protection

Is 666 West End Avenue rent-stabilized?

Rent stabilization caps how much your rent can rise and protects your right to renew. Here's how this building scores on the four signals that usually point to it.

Built before 1974
Built 1927
6 or more units
355 units
Registered with RGB
Not found
421-A / J-51 abatement
None found
Potential rent stabilization. Building age and size suggest eligibility — confirm with the DHCR (Division of Housing and Community Renewal) or request a rent history.

Based on public NYC records. Not legal advice — verify with the DHCR (Division of Housing and Community Renewal) at apps.hcr.ny.gov.

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How we score buildings

How 666 West End Avenue's risk score is calculated

We trained a model on 7 years of city inspection data — HPD violation filings, tenant complaints, and owner track records across their entire portfolio. It estimates the probability that HPD inspectors will find serious or dangerous violations at this address in the next 12 months. Lower % = safer.

What the score means for you

Neighborhood percentile
5th percentile

Out of 3016 buildings in this neighborhood, 151 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
1.8%
No serious
violations
16.9%
Some violations
(1–9)
81.3%
Many violations
(10+)
Risk factors

What's driving this score

These are the three data points that most influenced this building's score — ranked by how much weight the model placed on each one.

Serious violations last 1–2 years

HPD found serious or dangerous conditions at this address recently — the strongest signal of problems ahead.

Emergency violations (past 7 years)

HPD violations classified as immediately dangerous — fires, raw sewage, no heat in winter.

Hazardous violations (past 7 years)

HPD violations classified as hazardous — things like mold, peeling lead paint, or broken heat.

Don't stop here — this is just the surface.

The full report adds 30+ data sets, complete violation history, landlord portfolio and court record. Or keep reading free:

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What's in the 666 West End Avenue report

Building characteristics
Total units355
Floors22
Year built1927
Gross area—
Building class—
Tax abatementNone
Issue trend & model projection

Violations & complaints per year — solid line is historical record, dashed line is AI projection.

Multiple entrances & addresses

Included addresses

All street addresses that share this building's BBL and are covered by this report.

257 West 92nd St, New York, NY 10025
259 West 92nd St, New York, NY 10025
660 West End Ave, New York, NY 10025
662 West End Ave, New York, NY 10025
664 West End Ave, New York, NY 10025
666 West End Ave, New York, NY 10025
Who's behind the building

666 West End Avenue's landlord & ownership

The people and companies registered to this building, the other properties they run, and their court record. A landlord's wider portfolio is often the best predictor of how your building will be treated.

Corporate Owner

Registered contact for this building.

Name
Windermere Owners LLC
Address
44 West 28Th Street 6th Fl
New York, NY 10001
Landlord portfolio

Other properties owned.

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What residents say

Reviews from 666 West End Avenue tenants

Real experiences from people who have lived here. Share your honest feedback to help others make informed decisions.

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On the map

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The story over time

666 West End Avenue event timeline

Violations, complaints, fines, and permits — the most recent records on file, in order.

2026
311 Call May 20
Day Care
Day Care Facility
ECB Violation May 11
ECB violation · $1,250

See all 30 events

Full history back to 2022 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 666 West End Avenue apartments

30+ public city datasets for this address — searchable and sortable.

Side by side

How 666 West End Avenue compares to the neighborhood

This building against comparable properties in Upper West Side. Toggle filters to narrow the peer group.

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