Free Building Background Check

4121 Broadway

MANHATTAN, NY 10033 BBL 1021420244 62 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 Washington Heights
At or below average
avg 100.7
59
Fewer violations More violations

This building has 59 recorded HPD violations, at or below the Washington Heights average of 100.7.

Rent & eviction protection

Is 4121 Broadway 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
62 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 4121 Broadway'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
40th percentile

Out of 1273 buildings in this neighborhood, 509 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
2.7%
No serious
violations
44.2%
Some violations
(1–9)
53.1%
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.

Hazardous violations (past 7 years)

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

Building size

Total residential square footage — a proxy for building scale and the number of systems (plumbing, HVAC, etc.) that can fail.

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 4121 Broadway report

Building characteristics
Total units62
Floors6
Year built1930
Gross area70,812 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.

4119 Broadway, New York, NY 10033
4121 Broadway, New York, NY 10033
4123 Broadway, New York, NY 10033
4125 Broadway, New York, NY 10033
4127 Broadway, New York, NY 10033
635 West 174th St, New York, NY 10033
Who's behind the building

4121 Broadway'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
Paul Maslin & Co LLC
Address
6114 Riverdale Ave
Bronx, NY 10471
Landlord portfolio

Other properties owned.

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What residents say

Reviews from 4121 Broadway 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

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

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The story over time

4121 Broadway event timeline

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

2026
HPD Violation May 02
Class A violation
§27-2104(B) Hmc Post A Proper Notice Regarding Rent Stabilization Law, In A Form Approved By The Commissioner, In A Conspicuous Location Wi…
311 Call & HPD Complaint May 02
Heat/Hot Water

See all 30 events

Full history back to 2020 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 4121 Broadway apartments

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

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How 4121 Broadway compares to the neighborhood

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

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