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800 Greenwood Avenue, Brooklyn

📍 Sunset Park, Brooklyn Built 1941 63 units Class D1 Residential
Registered to SOL KNOPF LLC / Partnership HPD registration · updated monthly
CRITICAL RISK
10 Open Violations
3C 6B 1A
82 Complaints (12 mo) ↑ up vs prior year
0 Last 30 Days
Renting here? This building has 3 unresolved immediately-hazardous violations — ask the landlord what's being done about them before you sign.

311 Complaint Summary

0
Last 30 Days
9
Last 90 Days
82
Last 365 Days
⚠️ Complaints are up 157% compared to the previous 6 months.
🐀 4 pest infestation complaints filed with HPD since 2024
Complaint Types (Last 12 Months)
HEAT/HOT WATER
42(53%)
UNSANITARY CONDITION
15(19%)
PAINT/PLASTER
8(10%)
PLUMBING
4(5%)
DOOR/WINDOW
4(5%)
WATER LEAK
3(4%)
GENERAL
2(3%)
FLOORING/STAIRS
2(3%)
📅 Monthly Activity Heatmap (Last 12 Months)
Aug
Sep
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Jan
Feb
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Apr
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Jul

Source: NYC 311 / HPD · Synced daily · Covers HPD-managed residential buildings · Records from Jan 2024 onward

DOHMH Rat Inspection History

17 Inspections on Record
Failed for Rat Activity Most Recent Result
2026-04-20 Most Recent Date
2026-04-20 Compliance Failed for Rat Activity
2026-03-10 Initial Failed for Rat Activity
2025-09-25 Compliance Failed for Rat Activity
2025-08-19 Initial Failed for Rat Activity
2025-06-30 Initial Passed
2022-04-04 Initial Passed
2019-05-17 Initial Failed for Other Reason
2019-02-25 Compliance Passed
2019-02-06 Initial Failed for Other Reason
2018-04-06 Compliance Passed
2018-03-20 Initial Failed for Other Reason
2016-01-02 Compliance Passed
2015-09-10 Initial Passed
2015-04-10 Initial Failed for Other Reason
2011-06-30 Compliance Failed for Other Reason
2011-06-15 Initial Failed for Other Reason
2010-06-08 Initial Passed

Source: NYC DOHMH Rodent Inspections · Synced daily (30-day lookback) · Inspections may cover the building's block, not the exact address · DOHMH data publishes with ~10-day lag

HPD Housing Violations

1 Class A
6 Class B
3 Class C
Driving this immediately hazardous rating
Class C Properly repair or replace the broken or defective glass panes at skylight at roof , section at east 2026-03-24
Class C M/d law abate the nuisance consisting of fire damage 2026-03-24
See all 10 violations ▼
Class C § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE GLASS PANES AT SKYLIGHT AT ROOF , SECTION AT EAST
2026-03-24 ▼

Violation ID: #18740827

Current Status: Open

Date Issued: 2026-03-24T00:00:00.000

Description: § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE GLASS PANES AT SKYLIGHT AT ROOF , SECTION AT EAST

Class C § 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF FIRE DAMAGE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST
2026-03-24 ▼

Violation ID: #18740819

Current Status: Open

Date Issued: 2026-03-24T00:00:00.000

Description: § 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF FIRE DAMAGE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST

Class C 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT BUILDING FRONT YARD
2026-03-15 ▼

Violation ID: #18712738

Current Status: Open

Date Issued: 2026-03-15T00:00:00.000

Description: 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT BUILDING FRONT YARD

Class B § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR NORTH AND EAST WALLS IN THE KITCHEN LOCATED AT APT 4F, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST
2026-03-24 ▼

Violation ID: #18740823

Current Status: Open

Date Issued: 2026-03-24T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR NORTH AND EAST WALLS IN THE KITCHEN LOCATED AT APT 4F, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST

Class B § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR NORTH AND SOUTH WALLS IN THE 1st ROOM FROM EAST LOCATED AT APT 4F, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST
2026-03-24 ▼

Violation ID: #18740825

Current Status: Open

Date Issued: 2026-03-24T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR NORTH AND SOUTH WALLS IN THE 1st ROOM FROM EAST LOCATED AT APT 4F, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION AT EAST

Class B § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC FLOOR TILES IN THE BATHROOM LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-03-01 ▼

Violation ID: #18679612

Current Status: Open

Date Issued: 2026-03-01T00:00:00.000

Description: § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC FLOOR TILES IN THE BATHROOM LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST

Class B § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 5th STORY
2025-12-09 ▼

Violation ID: #18520623

Current Status: Open

Date Issued: 2025-12-09T00:00:00.000

Description: § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 5th STORY

Class B § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 4th STORY
2025-12-09 ▼

Violation ID: #18520638

Current Status: Open

Date Issued: 2025-12-09T00:00:00.000

Description: § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 4th STORY

Class B § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 1st STORY
2025-12-09 ▼

Violation ID: #18520641

Current Status: Open

Date Issued: 2025-12-09T00:00:00.000

Description: § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRES AND HANGING PIGTAIL AT CABLE BOX INSIDE COMPACTOR CLOSET AT PUBLIC HALL, 1st STORY

Class A §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://WWW.NYC.GOV/SITE/HPD/SERVICES-AND-INFORMATION/REQUIRED-SIGNAGE.PAGE
2026-03-26 ▼

Violation ID: #18747570

Current Status: Open

Date Issued: 2026-03-26T00:00:00.000

Description: §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://WWW.NYC.GOV/SITE/HPD/SERVICES-AND-INFORMATION/REQUIRED-SIGNAGE.PAGE

⚠️ What does Class C mean?

Class C violations are classified as immediately hazardous by the HPD (e.g. lack of heat or hot water, active mold, severe rodent infestations, lead-based paint, or carbon monoxide detector issues). Landlords are legally required to resolve these immediately.

Source: NYC HPD Housing Violations · Synced daily · Open violations only — closed violations excluded · Class I (administrative/registration notices) excluded from counts

What This Means If You're Considering Renting Here

This building has 3 Class C (immediately hazardous) violations currently open — the most serious HPD category. With 82 complaints filed in the last 12 months, prospective renters should exercise significant caution, request a full HPD inspection history, and consult a tenant rights organization before signing any lease.

Data current as of July 9, 2026. Always verify independently with HPD before signing a lease.

Data Disclaimer: All compliance data on this page is synced directly from municipal reports published via NYC Open Data. Complaint counts and HPD housing violations are updated daily. Building characteristics (built year, unit count, and building class) are derived from the NYC Department of City Planning's PLUTO database.

Data last updated: July 9, 2026 · Source: NYC Open Data

⚠️ Serious Concerns Found

This building has 82 complaints and 3 Class C (immediately hazardous) violations on record in the last 12 months. Review the full violation list carefully before signing any lease.

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About This Data

Complaint data is sourced from the NYC 311 Service Requests dataset (NYC Open Data). Violation data is from the HPD Housing Maintenance Code Violations dataset. Building info is based on NYC PLUTO by NYC Department of City Planning.

All records are public-domain municipal data provided as-is. Updated daily. Last verified: July 9, 2026.