Free Building Background Check

21 East 21 Street

Brooklyn, NY 11226 BBL 3050630023 42 units · 6 floors · 1938

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

HPD violations vs. neighborhood
Class B/C violations on record vs. a typical building in Flatbush
Above average
avg 87.3
562
Fewer violations More violations

This building has 562 recorded HPD violations, above the Flatbush average of 87.3.

Augrented Insights
Initial analysis

The 6-story, 42-unit building at 21 East 21st Street in Flatbush, built in 1938, has experienced significant maintenance and safety challenges over the past seven years under the ownership of 21 East 21st Street Partners LLC. The property has accumulated a substantial number of violations, including 163 Class A violations, 368 Class B violations, and 194 Class C violations, along with 570 housing complaints and 310 311 service requests. Recent months have seen particularly pressing concerns, with emergency violations recorded in September 2026 for non-functional smoke and carbon monoxide detectors in addition to multiple pest infestations (both mice and roaches) in Apartment 1E. The building is currently facing active Department of Buildings complaints regarding illegal conversions and elevator service issues, with multiple historical complaints about single elevator device operation and no alternate service. Elevator safety has been an ongoing concern, with Environmental Control Board violations relating to pit maintenance and emergency signals.

AI-generated · may contain errors · check the source data tables below

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What's in the 21 East 21 Street report

Rent & eviction protection

Is 21 East 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 1938
6 or more units
42 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 21 East 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
42 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.

How we score buildings

How 21 East 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
4thpercentile

Out of 1399 buildings in this neighborhood, 56 have a higher predicted risk. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
12-Month risk forecast
High failure risk
in the next 12 months
100%
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.

Emergency violations, property manager's portfolio

Emergency violations across buildings under this property manager.

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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Building characteristics
Total units42
Floors6
Year built1938
Gross area41,952 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.

11 East 21st St, New York, NY 11226
13 East 21st St, New York, NY 11226
15 East 21st St, New York, NY 11226
17 East 21st St, New York, NY 11226
19 East 21st St, New York, NY 11226
Who's behind the building

21 East 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.

HPD registration

Filed Jul 10, 2025, expired Sep 1, 2026 .

Registration expired

The registration on file expired Sep 1, 2026. HPD requires owners of most rental buildings to re-register every year.

City records, not real time — sale and registration data are as fresh as the last extract loaded; the ACRIS deed record above is good through Jun 30, 2018.

Corporate Owner

Registered contact for this building.

Address
21 East 21 Street
Brooklyn, NY 11230
Landlord portfolio

Other properties owned.

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Recorded with the city

21 East 21 Street's mortgage & ownership history

Deeds, mortgages, assignments and satisfactions recorded against this property with the NYC Automated City Register Information System (ACRIS) — the public paper trail behind who owns it and who has lent against it.

5 records on file

Create a free account to see this building's deeds, mortgages, assignments and satisfactions — who owns it and who has lent against it.

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Sourced from NYC ACRIS recorded documents. Amounts reflect the mortgage or transfer amount stated on the recorded document, not necessarily the property's market value.

What residents say

Reviews from 21 East 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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Buildings nearby
8 found
The story over time

21 East 21 Street event timeline

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

2026
HPD Violation Sep 11
Class B violation
§ 27-2026 Adm Code Repair The Leaky And/Or Defective Faucets At Bathtub In The Bathroom Located At Apt 1E, 1St Story, 3Rd Apartment From We…
HPD Violation Sep 11
Class B violation

See all 26 events

Full history back to 2003 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 21 East 21 Street apartments

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

Side by side

How 21 East 21 Street compares to the neighborhood

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

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