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Free Building Background Check

323 Stagg Street

BROOKLYN, NY 11206 BBL 3030300030 6 units · 3 floors · 1920

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

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Rent & eviction protection

Is 323 Stagg 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 1920
6 or more units
6 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

The 6-unit, 3-story old law tenement at 323 Stagg Street in East Williamsburg, built in 1920 and currently owned by Josh Koppel, has experienced several recurring maintenance issues in recent years. The building underwent multiple heating and hot water complaints between December 2023 and January 2024, with at least eight separate reports regarding inadequate heat or hot water affecting either the entire building or individual apartments. More recently, the building has faced rodent issues, with the most recent complaints in October 2024 showing rat activity, though a subsequent inspection in October 2024 did not find violations.

The property has several active violations related to building safety and maintenance, including open violations from November 2024 concerning defective self-closing doors in apartments 2R and 2L. The Department of Buildings has noted multiple failures to file required annual inspections, including external low-pressure inspections from 2018 through 2023, and there are substantial ECB penalties pending totaling $19,375 related to previous boiler violations and failure to file inspection reports. Historical complaints indicate ongoing concerns with the building's heating system, including a significant inspection in December 2023 that revealed various issues such as inadequate smoke and carbon monoxide detectors, heating system access problems, and excessively hot water temperatures exceeding 130 degrees. The building does appear to have maintained rodent control efforts, with most recent inspections passing, though there have been several instances of reported rodent activity over the years. A bedbug report filed in December 2024 for the period from November 2023 to October 2024 showed no infested units.

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How we score buildings

How 323 Stagg 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
18th percentile

Out of 314 buildings in this neighborhood, 57 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
21.0%
No serious
violations
56.3%
Some violations
(1–9)
22.7%
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.

Tenant HPD complaints (past 7 years)

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

311 housing calls (past 7 years)

311 calls from or about this address logged as housing-related over 7 years.

Building characteristics
Total units6
Floors3
Year built1920
Gross area4,125 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

323 Stagg 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
Josh Koppel As Receiver
Address
323 Stagg Street
Brooklyn, NY 11206
Landlord portfolio

Other properties owned.

Portfolio data hidden

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What residents say

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