Free Building Background Check

3901 Nostrand Avenue

BROOKLYN, NY 11235 BBL 3074750001 234 units · 6 floors · 1961

While historically clean, our model detects a rising risk of severe maintenance issues in the next 12 months.

HPD violations vs. neighborhood
Class B/C violations on record vs. a typical building in Sheepshead Bay
At or below average
avg 16.1
5
Fewer violations More violations

This building has 5 recorded HPD violations, at or below the Sheepshead Bay average of 16.1.

Rent & eviction protection

Is 3901 Nostrand 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 1961
6 or more units
234 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.

Augrented Insights
AI summary · updated June 2026

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How we score buildings

How 3901 Nostrand 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
8th percentile

Out of 1389 buildings in this neighborhood, 111 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
3.6%
No serious
violations
40.9%
Some violations
(1–9)
55.5%
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.

Number of apartments

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

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:

What's in the 3901 Nostrand Avenue report

Building characteristics
Total units234
Floors6
Year built1961
Gross area216,500 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.

2930 Avenue Z, New York, NY 11235
3863 Nostrand Ave, New York, NY 11235
3865 Nostrand Ave, New York, NY 11235
3867 Nostrand Ave, New York, NY 11235
3869 Nostrand Ave, New York, NY 11235
3871 Nostrand Ave, New York, NY 11235
3873 Nostrand Ave, New York, NY 11235
3875 Nostrand Ave, New York, NY 11235
3877 Nostrand Ave, New York, NY 11235
3879 Nostrand Ave, New York, NY 11235
3881 Nostrand Ave, New York, NY 11235
3883 Nostrand Ave, New York, NY 11235
3885 Nostrand Ave, New York, NY 11235
3887 Nostrand Ave, New York, NY 11235
3889 Nostrand Ave, New York, NY 11235
3891 Nostrand Ave, New York, NY 11235
3893 Nostrand Ave, New York, NY 11235
3895 Nostrand Ave, New York, NY 11235
3897 Nostrand Ave, New York, NY 11235
3899 Nostrand Ave, New York, NY 11235
3901 Nostrand Ave, New York, NY 11235
3903 Nostrand Ave, New York, NY 11235
3905 Nostrand Ave, New York, NY 11235
3907 Nostrand Ave, New York, NY 11235
3909 Nostrand Ave, New York, NY 11235
3911 Nostrand Ave, New York, NY 11235
3913 Nostrand Ave, New York, NY 11235
3915 Nostrand Ave, New York, NY 11235
3917 Nostrand Ave, New York, NY 11235
3919 Nostrand Ave, New York, NY 11235
3921 Nostrand Ave, New York, NY 11235
3923 Nostrand Ave, New York, NY 11235
3925 Nostrand Ave, New York, NY 11235
3927 Nostrand Ave, New York, NY 11235
3929 Nostrand Ave, New York, NY 11235
3931 Nostrand Ave, New York, NY 11235
3933 Nostrand Ave, New York, NY 11235
3935 Nostrand Ave, New York, NY 11235
3937 Nostrand Ave, New York, NY 11235
3939 Nostrand Ave, New York, NY 11235
3941 Nostrand Ave, New York, NY 11235
3943 Nostrand Ave, New York, NY 11235
3945 Nostrand Ave, New York, NY 11235
3947 Nostrand Ave, New York, NY 11235
3949 Nostrand Ave, New York, NY 11235
2927 Voorhies Ave, New York, NY 11235
2929 Voorhies Ave, New York, NY 11235
2931 Voorhies Ave, New York, NY 11235
Who's behind the building

3901 Nostrand 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
Sea Isle Owners Inc
Address
3901-3 Nostrand Ave #
Bklyn, NY 11235
Landlord portfolio

Other properties owned.

Portfolio data hidden

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What residents say

Reviews from 3901 Nostrand Avenue tenants

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On the map

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The story over time

3901 Nostrand Avenue event timeline

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

2026
Permit Jun 02
Initial Permit · General Construction
Permit Issued
Permit May 28
Initial Permit · Sidewalk Shed

See all 31 events

Full history back to 2019 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 3901 Nostrand Avenue apartments

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

Side by side

How 3901 Nostrand Avenue compares to the neighborhood

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

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