Free Building Background Check

305 6 Avenue

Brooklyn, NY 11215 BBL 3009710001 4 units · 4 floors · 1920

Despite past complaints, recent landlord activity indicates a low probability of future maintenance failures.

HPD violations vs. neighborhood
Class B/C violations on record vs. a typical building in Park Slope
Above average
avg 3.0
4
Fewer violations More violations

This building has 4 recorded HPD violations, above the Park Slope average of 3.0.

Rent & eviction protection

Is 305 6 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 1920
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.

Good Cause Eviction

Is 305 6 Avenue 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 not covered. This building appears to be exempt from Good Cause Eviction for the reason below.
  • Small landlord. This landlord owns about 4 units across 1 building in our records — at or below the 10-unit small-landlord threshold.

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.

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How we score buildings

How 305 6 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
55th percentile

Out of 2029 buildings in this neighborhood, 1116 have a higher predicted risk.

RiskiestSafest
Predicted violation outcome
83.5%
No serious
violations
11.2%
Some violations
(1–9)
5.4%
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.

City fines, landlord's portfolio

Total ECB fines across all of this landlord's buildings over 7 years.

Building size

Total residential square footage — a proxy for building scale and the number of systems (plumbing, HVAC, etc.) that can fail.

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:

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What's in the 305 6 Avenue report

Building characteristics
Total units4
Floors4
Year built1920
Gross area6,417 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.

423 2nd St, New York, NY 11215
305 6th Ave, New York, NY 11215
Who's behind the building

305 6 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.

Address
275 9Th St 150461
Brooklyn, NY 11215
Landlord portfolio

Other properties owned.

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What residents say

Reviews from 305 6 Avenue 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

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
8 found
The story over time

305 6 Avenue event timeline

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

2026
Bedbug Filing Mar 20
Bedbug report filed
0 infested · 0 eradicated

See all 15 events

Full history back to 2021 — violations, complaints, permits, bedbug filings, and more.

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Every record we have

Full data for 305 6 Avenue apartments

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

Side by side

How 305 6 Avenue compares to the neighborhood

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

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

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