800 Greenwood Avenue

Brooklyn, NY

BBL 3-05287-0021BIN 3122873

Concern level3 of 4

High

011 open class-C HPD violation (immediately hazardous) — about 1 per 63 apartments
021 of those issued in the last 3 years
031 open rent-impairing violation(s)
048 active DOB violation(s)
051 eviction executed in the last 3 years

How this is set: open hazardous violations measured against the building's size, then raised by strong distress signals — HPD's enforcement program, court harassment findings, recent evictions, unpaid DOB fines, open housing-court cases, and a sold tax lien. Neighborhood noise and crime are not part of it. It describes the public record, not the condition of any one apartment, and a quiet record is not proof of a good building.

Rent regulation

Likely rent-stabilized

The owner registered 49 stabilized units with New York State for 2023 — of about 63 apartments.

2018 — 51 units registered2023 — 49

No public data says which specific apartment is stabilized.

Registration counts apply to the building, not to unit numbers. To confirm your own apartment, request your rent history from New York State Homes and Community Renewal — it is free and takes a few weeks.

How to request your rent history →

Rent regulation

The building

1941

Built

Floors

Residential units

Elevator apartments

Type

The building

This building and the landlord's others

This building2 others linked to the same owner

HPD housing-maintenance violations

Open now

273

On record

Open Class C

Open Class B

Open Class A

Class C is immediately hazardous, Class B is hazardous, Class A is non-hazardous. A violation stays open until HPD certifies the repair, so some open items may already be fixed.

CLASS C · IMMEDIATELY HAZARDOUSIssued 2026-09-25RENT-IMPAIRING

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 WEST SECTIONS FLOOR, AT CELLAR

Status: Nov Certified On Time

CLASS B · HAZARDOUSIssued 2026-09-25

§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF STANDING WATER AT THE FLOOR, IN THE COMPACTOR ROOM, AT CELLAR AT

Status: Nov Certified On Time

CLASS B · HAZARDOUSApt 3LIssued 2026-03-05

§ 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

Status: Certification Postponment Denied

CLASS B · HAZARDOUSIssued 2025-12-18

§ 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

Status: Certification Postponment Denied

HPD housing-maintenance violations

311 complaints from tenants

331

All time

Last 12 months

Heat/Hot Water244

Unsanitary Condition32

General13

Door/Window10

Paint/Plaster10

Plumbing9

Water Leak4

Flooring/Stairs3

Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.

311 complaints from tenants

Neighborhood noise

Lower than averagevs. NYC apartment blocks

131

Noise reports · last 12 mo

≈ per month

% from neighbors

Street/Sidewalk41

Unspecified30

Residential26

Commercial24

Vehicle6

Helicopter3

Park1

311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about outdoor noise (mostly street/sidewalk) — street life and traffic more than neighbors. This counts how often people call 311, which tracks how densely populated and busy an area is as much as how loud it is — it is not a sound measurement.

Neighborhood noise

Neighborhood crime

Much lower than averagevs. NYC apartment blocks

NYPD reports · last 12 mo

≈ per month

Felony12

Misdemeanor22

Violation10

NYPD complaints reported within about 1,000 ft (a few blocks) in the last year, by severity. This reflects what gets reported and where police are active as much as actual safety, and busier, denser, higher-foot-traffic blocks log more. Locations are approximate — the NYPD shifts each report to the nearest corner for privacy — so read this as rough context, not a safety score.

Neighborhood crime

Bedbug history

Infested, latest filing

Annual filings

2024–20250 infested · 0 eradicated

2023–20241 infested · 1 eradicated

2023–20240 infested · 0 eradicated

Self-reported by the owner for the year ending each filing. Counts are building-wide and do not say which apartment was affected.

Bedbug history

DOB building violations

Active

On record

Active, last 3 yrs

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-30

VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-30

VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION

ACTIVE · ACC1-(OTHER BLDGS TYPES) - ELEVATOR AFFIRMATION OF CORRECTION ELEVATORREQUIRED2014-05-30

VIO ISSUED TO ELEVATOR - FAIL TO CORRECT DEFECTS ON 2012 CAT 1 INSP/TST

DOB building violations

Evictions

Executed, all time

Last 3 years

2026-09-01Apt 2Kresidential

Executed by a city marshal. An eviction can be lawful; a high or rising count is a displacement signal, not proof of wrongdoing.

Evictions

Housing court

No HPD housing-court cases on record for this building.

Housing court

Landlord and related buildings

Registered owner

EL-SO REALTY CO L.L.C

Head officer

SOL KNOPF

Managing agent

El-So Realty L.L.C.

2 other buildings share this owner's registration contacts. Shared contacts suggest common control, but they are not proof of ownership.

1280 EAST 18 STREETBROOKLYN 44-15 43 AVENUEQUEENS

Landlord and related buildings

Unpaid city fines

$2,500

Balance due (active)

Active violations

Lost by default

DOB violations adjudicated by OATH carry money penalties. "Lost by default" means the owner never appeared at the hearing. An unpaid balance is a stronger "ignoring the city" signal than a raw violation count.

ConstructionClass 22026-10-05$1,250 due

ConstructionClass 22025-05-16$1,280 penalty

Unpaid city fines

Ownership & money

Recorded sales

Mortgages / refinances

Last recorded sale2011-07-14 · no recorded price

Most recent mortgage2021-04-29 · $8,395.9

Mortgage2021-04-29$8,395.9

borrower EL-SO REALTY CO L.L.C. · lender JPMORGAN CHASE BANK, N.A.

Mortgage2016-05-31$56,740.91

borrower EL-SO REALTY CO L.L.C. · lender JPMORGAN CHASE BANK, N.A.

Mortgage2011-07-18$36,652.83

borrower EL-SO REALTY CO L.L.C. · lender GREYSTONE SERVICING CORPORATION, INC.

Sale2011-07-14no recorded price

ELSO REALTY COMPANY → EL-SO REALTY CO L.L.C.

Mortgage2000-02-24$682,081.76

borrower EL-SO REALTY COMPANY, ELSO REATLY CO · lender JAMAICA SAVINGS BANKFSB

From ACRIS recorded documents. Amounts are often $0 or nominal for transfers between related parties, and LLCs can obscure who is really involved — treat this as public-record context, not a valuation.

Ownership & money

City debt & tax-lien sale

Not on the city's tax-lien sale list (2019–2025). The owner has not fallen far enough behind on property tax or water charges to be flagged for a lien sale.

City debt & tax-lien sale