Free Building Background Check

63 South 4 Street

BROOKLYN, NY 11249 BBL 3024290035 4 units · 3 floors · 1910

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 Williamsburg
At or below average
avg 9.4
3
Fewer violations More violations

This building has 3 recorded HPD violations, at or below the Williamsburg average of 9.4.

Rent & eviction protection

Is 63 South 4 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 1910
6 or more units
4 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

63 South 4th Street is a three-story, four-unit Old Law Tenement building constructed in 1910 and currently owned by Robert Silverblatt. The property has experienced several maintenance issues over the past few years, with three emergency complaints recorded between late 2021 and early 2022, specifically regarding heat/hot water, unsanitary conditions (mold), and plumbing/water supply problems. The building has also faced administrative challenges, receiving bedbug reporting violations in 2021, 2022, and 2023, though recent reports from 2023-2024 show no infested units. There have been multiple rodent inspections between 2017 and 2022, with initial inspections indicating rat activity in late 2017, though subsequent inspections showed improvement, with the most recent inspection in December 2022 passing.

Significantly, the property was found to have substantial safety issues in 2019, when four out of nine masonry steps at the main entrance were reported as severely broken, creating tripping hazards. This violation was documented by the Department of Environmental Protection and required resolution. The building's maintenance history shows regular permit activity from 2019 through 2021, with multiple permits being issued for plumbing and exterior work. Most recently, the building successfully passed a rodent inspection in December 2022 and has maintained a clean record for bedbug infestations in the most recent reporting periods, suggesting some improvement in pest management. While the building has had its share of maintenance challenges, the absence of new complaints since early 2022 indicates a period of relative stability, though the age of the building and history of various maintenance issues suggest ongoing attention to building systems may be required.

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How we score buildings

How 63 South 4 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
28th percentile

Out of 3634 buildings in this neighborhood, 1018 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
54.1%
No serious
violations
38.7%
Some violations
(1–9)
7.3%
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.

Tenant HPD complaints (past 7 years)

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

311 call rate, landlord's portfolio

Average 311 housing complaints per building across everything this landlord owns.

DOB complaints, property manager's portfolio

Building complaints logged against properties under this 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:

What's in the 63 South 4 Street report

Building characteristics
Total units4
Floors3
Year built1910
Gross area2,800 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

63 South 4 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
63 South 4Th Street LLC
Address
55 Nassau Avenue 3a2
Brooklyn, NY 11222
Landlord portfolio

Other properties owned.

Portfolio data hidden

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What residents say

Reviews from 63 South 4 Street tenants

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On the map

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The story over time

63 South 4 Street event timeline

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

2026
311 Call Jun 01
Rodent
Rat Sighting

See all 16 events

Full history back to 2006 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 63 South 4 Street apartments

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

Side by side

How 63 South 4 Street compares to the neighborhood

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Cancel anytime · Data sourced from NYC Open Data, HPD, DOB, DOF & the courts

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