400 6th Avenue

400 6th Avenue in Park Slope, Brooklyn, has 2 open HPD violations, 1 of them class C, and 8 of 17 units are rent-stabilized, as of Oct 24, 2026. StreetSpy grade: D (55/100).

Multi-family walk-up · 17 units · Built 1905

StreetSpy grade: D (Poor, 55/100)

• 1 immediately hazardous violation open (the class that covers no heat, pests, lead paint and similar).
• 11 heat or hot water complaints to 311 in the last 12 months.
• The owner's bedbug filings report 2 infested units over the last 3 years.
• 8 of 17 units are rent-stabilized; 17 on the 2007 tax bill.

• Repairs: Low (2 open, 1 class C), records as of Oct 24, 2026
• Heat and hot water: 11 complaints, 12 mo, records as of Oct 23, 2026
• Pests: High (2 infested units, 3 yr), records as of Oct 26, 2026
• Safety: Clear (No open DOB violations), records as of Oct 23, 2026
• Registration: Through Sep 1, 2027, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

2 open violations: 1 class C (immediately hazardous), 1 class B, 0 class A. 13 issued in the last 12 months. 70 on record. Oldest open violation issued 2021-06-07. Newest violation issued 2026-06-15.

4 closed in the last 90 days. Median 87 days from issue to close for the 14 violations closed in the last 12 months.

• Class C: Self-closing door not working, 4th floor. , 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 4D, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 4D), issued 2025-10-28. HPD violation 18325993
• Class B: Mold, kitchen, 3rd floor. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... APPROXIMATELY 1 SQUARE FOOT AT WOOD COUNTER TOP 1ST FROM EAST IN THE KITCHEN LOCATED AT APT 3B, 3rd STORY, 2nd APARTMENT FROM SOUTH AT WEST ORIGINAL VIOLATION 14014738 ISSUED 03-FEB-21 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE §27-2017.3a(3)(a) or (b). (apt 3B), issued 2021-06-07. HPD violation 14372620

311 housing complaints

12 in the last 12 months, 52 in 5 years. Most common: Heat/Hot Water (11), Plumbing (1).

Bedbugs

The owner reported 2 infested units in the last 3 years. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

• 2026: No bedbug filing on record for this year
• 2025: Owner reported 1 infested, 1 treated, 0 re-infested
• 2024: Owner reported 1 infested, 1 treated, 0 re-infested
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

Buildings department (DOB)

No open DOB violations. 0 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

8 of 17 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).

Rent-stabilized units on city tax bills: 8 in 2024, 17 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: GH 400 6 AVE FEE LLC. Head officer: GLEN BROWN. Managing agent: FREESTONE PROPERTY GROUP LLC. This owner has 423 buildings on record, 64 graded D or F. See the full portfolio.

Last HPD registration Jun 24, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 3009990038, HPD building ID 132011. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 7 Av (F, G), 5 min walk
• 4 Av-9 St (R), 6 min walk
• 4 Av-9 St (F, G), 7 min walk

How the grade is calculated

Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-27.