Free Building Background Check

337 West 21 Street

MANHATTAN, NY 10011 BBL 1007450014 31 units · 6 floors · 1930

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 Chelsea
Above average
avg 10.0
29
Fewer violations More violations

This building has 29 recorded HPD violations, above the Chelsea average of 10.0.

Rent & eviction protection

Is 337 West 21 Street 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 1930
6 or more units
31 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.

Good Cause Eviction

Is 337 West 21 Street covered by Good Cause Eviction?

New York's Good Cause Eviction law (effective April 20, 2024) gives many market-rate tenants the right to renew their lease and challenge rent hikes above the annual local rent standard. It doesn't apply to every building.

Likely covered. Based on public records, market-rate units here appear to fall under Good Cause Eviction protections — tenants may have the right to a lease renewal and to challenge rent increases above the local rent standard (inflation + 5%, capped at 10%).
Built before 2009
Yes
Landlord owns 11+ units
31 units across 1 bldg
Not owner-occupied
No owner-occupancy

Good Cause also excludes condos & co-ops, subsidized/regulated housing, and units renting above 245% of Fair Market Rent — signals we can't always confirm from public data. Not legal advice. Learn more at nyc.gov or call 311 for the Tenant Helpline.

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How we score buildings

How 337 West 21 Street'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
6th percentile

Out of 1008 buildings in this neighborhood, 60 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
8.2%
No serious
violations
69.9%
Some violations
(1–9)
21.8%
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.

Tenant HPD complaints (past 7 years)

Formal complaints tenants filed with HPD about this address over the last 7 years.

311 housing calls (past 7 years)

311 calls from or about this address logged as housing-related over 7 years.

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 337 West 21 Street report

Building characteristics
Total units31
Floors6
Year built1930
Gross area20,737 sq ft
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.

337 West 21st St, New York, NY 10011
339 West 21st St, New York, NY 10011
Who's behind the building

337 West 21 Street'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
Sja W 21 Street Corp
Address
200 Park Avenue South 10 Flo
New York, NY 10003
Landlord portfolio

Other properties owned.

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What residents say

Reviews from 337 West 21 Street 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

337 West 21 Street event timeline

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

2026
311 Call Feb 06
Paint/Plaster
Wall
311 Call Feb 06
Electric

See all 25 events

Full history back to 2021 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 337 West 21 Street apartments

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

Side by side

How 337 West 21 Street compares to the neighborhood

This building against comparable properties in Chelsea. Toggle filters to narrow the peer group.

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