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23 East 73 Street

MANHATTAN, NY 10021 BBL 1013880014 5 units · 7 floors · 1911

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HPD violations vs. neighborhood
Class B/C violations on record vs. a typical building in Upper East Side
? vs. avg
Fewer violations More violations

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Rent & eviction protection

Is 23 East 73 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 1911
6 or more units
5 units
Registered with RGB
Not found
421-A / J-51 abatement
None found
Likely not rent stabilized. This building doesn't show the typical signals — but confirm with the DHCR (Division of Housing and Community Renewal) if you suspect otherwise.

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

Augrented Insights
AI summary · updated June 2026

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How we score buildings

How 23 East 73 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
96th percentile

Out of 3066 buildings in this neighborhood, 2943 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
90.5%
No serious
violations
8.0%
Some violations
(1–9)
1.6%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market conditions and enforcement patterns that affect all buildings in the area.

Number of apartments

The number of residential units affects how the model interprets complaint and violation totals — more units means more potential sources.

Property manager's portfolio size

Number of buildings this property manager is registered on — larger portfolios have distinct risk patterns.

Building characteristics
Total units5
Floors7
Year built1911
Gross area400 sq ft
Building class
Tax abatementNone
Issue trend & model projection

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

Who's behind the building

23 East 73 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
Gef Development Corp.
Address
236 East 68Th Street
New York, NY 10065
Landlord portfolio

Other properties owned.

Portfolio data hidden

We found 2 other properties owned by this landlord. Unlock the report to see their addresses and risk grades.

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What residents say

Reviews from 23 East 73 Street tenants

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On the map

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