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Building report

427 Knickerbocker Avenue · Brooklyn · BBL 3032790002 · generated 2026-10-20 · FREE

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Where the penalty points come from

ComponentWhat it coversPoints
Housing codeHPD violations by class, complaints, emergency repairs, litigation, vacate orders, AEP1
Structural & safetyDOB violations, ECB/OATH violations by class0
PestsBedbug filings, failed rodent inspections, rodent 311s0
DisplacementMarshal evictions executed0
GRADE A

The city's published records show little recorded distress here in the last three years. Less recorded distress than 85% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 1.7. In ZIP 11237, 39% of residential buildings hold an A and 15% grade D or F. How grades work

this building
A
B
C

Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations3 total — 3 class C (immediately hazardous), 0 class B, 0 class A. Oldest open since 1978-04-21.

status snapshot refreshed weekly from HPD records

Patterns

No heat or hot-water complaints in the last three years.

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

5 service requests in the last three years. Most common: Noise (2) · Graffiti (1) · Illegal Dumping (1) · Emergency Response Team (ERT) (1).

Filed construction activity

$1,154,100 in permitted construction work filed since 2016 (10 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

YesBuilt before 1974 (1931)
YesSix or more residential units (6)
No421-a / J-51 tax benefit on the current tax roll

2 of 3 signals present. This is the classic profile of a rent-stabilized building (pre-1974, 6+ units) — many units in such buildings remain stabilized. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).

Registered with HPD — the names behind the building

Registered owner(s)Knickerbocker 427 LLC
Head officerMike Nassimi
Managing agentWinbrook Management, LLC
Last registered2025-10-06

as filed by the owner in the building's HPD registration

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$798,000 $359,100
2026$851,000 $382,950
2027$963,000 $433,350

The city's market estimate has risen 21% between tax years 2025 and 2027.

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Not in a hurricane evacuation zone.

Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.

No street-flooding or sewer-backup complaints on record at this address.

Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.

Getting around

SubwayKnickerbocker Av — M · 300 ft straight-line (about a 2-minute walk) · station accessibility: none
DeKalb Av — L · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
BusNearest boarding stop: Myrtle Av / Knickerbocker Av — B54 · 450 ft
Citi BikeGreene Ave & Myrtle Ave · 450 ft · station location as of 2026-09-23; live availability
Bike facilityPainted bike lane mapped within 75 ft
School zones (2024–25 map)Elementary: P.S. 086 The Irvington
Middle: J.H.S. 162 The Willoughby. Confirm with the DOE's school search.

Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.

Report a problem to 311

427 Knickerbocker Avenue

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Anything elseAnything else

5 311 service requests from this address in the last three years.

311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.

The landlord's report card

Managed by WINBROOK MANAGEMENT, LLC — 2 buildings, 10 units. Grades across the portfolio: A1 · C1. See the whole portfolio

BuildingBoroughUnitsGrade
427 Knickerbocker Avenue BK6 A
431 Knickerbocker Avenue BK4 C

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $1,555,000 on 2023-01-17 (lender: Flagstar Bank, N.A.), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2023-01-17Agreement $5,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A. $5,555,000
2023-01-17Mortgage $1,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A. $1,555,000
2023-01-17AL&R $5,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A. $5,555,000
2017-05-25Mortgage $5,000,000 — from KNICKERBOCKER 427, LLC to ISRAEL DISCOUNT BANK OF NEW YORK $5,000,000
2017-05-25AL&R $5,000,000 — from KNICKERBOCKER 427, LLC to ISRAEL DISCOUNT BANK OF NEW YORK $5,000,000
2017-05-19Deed $6,000,000 — from COHEN & GREENBERG LLC to KNICKERBOCKER 427, LLC $6,000,000
2017-05-12Sold for $6,000,000 $6,000,000 $1,000,000

Ten-year activity

20100
2017
2018
19
2019
2020
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20170044311
20183150211
20196641219
2020331029
20219220114
202211050218
20233035213
2024001023
2025004026
2026013015
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The last 12 months — 6 records

DateRecord
2026-09-05311: Emergency Response Team (ERT) — After Hours Work - Illegal
2026-09-05DOB complaint, category ?
2026-08-24311: Noise - Street/Sidewalk — Loud Talking
2026-05-07Rodent inspection: Passed
2026-03-04Bedbug filing: 0 infested units
2025-11-12Rodent inspection: Passed

The full timeline

2026
2026-09-05311: Emergency Response Team (ERT) — After Hours Work - Illegal
2026-09-05DOB complaint, category ?
2026-08-24311: Noise - Street/Sidewalk — Loud Talking
2026-05-07Rodent inspection: Passed
2026-03-04Bedbug filing: 0 infested units
2025
2025-11-12Rodent inspection: Passed
2025-08-29Bedbug filing: 0 infested units
2025-08-01311: Illegal Dumping — Removal Request
2025-06-10HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2025-05-23311: Noise - Street/Sidewalk — Loud Talking
2025-05-12Rodent inspection: Passed
2024
2024-11-01Rodent inspection: Passed
2024-10-05311: Graffiti — Graffiti
2024-05-06Rodent inspection: Passed
2023
2023-12-01Bedbug filing: 0 infested units
2023-10-30Rodent inspection: Passed
2023-10-03311: Graffiti — Graffiti
2023-06-21311: Graffiti — Graffiti
2023-05-04Rodent inspection: Passed
2023-04-12Certificate of occupancy Final
2023-04-12Certificate of occupancy Final
2023-03-14Certificate of occupancy Renewal Without Change
2023-01-17TL&R — from KNICKERBOCKER 427, LLC to ISRAEL DISCOUNT BANK OF NEW YORK
2023-01-17Agreement $5,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A.$5,555,000
2023-01-17Mortgage $1,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A.$1,555,000
2023-01-17AL&R $5,555,000 — from KNICKERBOCKER 427, LLC to FLAGSTAR BANK, N.A.$5,555,000
2023-01-17Mortgage assigned — from ISRAEL DISCOUNT BANK OF NEW YORK to FLAGSTAR BANK, N.A.
2022
2022-12-27Certificate of occupancy Renewal Without Change
2022-12-09Bedbug filing: 0 infested units
2022-11-15Rodent inspection: Passed
2022-11-14HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2022-10-11Certificate of occupancy Renewal Without Change
2022-07-14Certificate of occupancy Initial
2022-06-04311: Noise - Vehicle — Car/Truck Music
2022-05-11Rodent inspection: Passed
2022-04-28Job filed: PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$36,700
2022-04-05Permit Mechanical Systems — Signed-off
2022-03-23Job filed: PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$36,700
2022-02-25HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2022-02-25HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2022-02-11Job filed: PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$36,700
2022-02-08Job filed: Modifications to an existing HVAC system to match new tenant fit out layout$14,000
2022-01-30Permit Plumbing — Signed-off
2022-01-20Job filed: PROPOSED INTERIOR FIT-OUT OF EXISTING COMMERCIAL SPACE, PER B.B.#2009-025 NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$137,525
2022-01-20Job filed: PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$34,000
2021
2021-12-27Permit General Construction — Signed-off
2021-12-15Job filed: PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$36,700
2021-12-15Job filed: PROPOSED INTERIOR FIT-OUT OF EXISTING COMMERCIAL SPACE, PER B.B.#2009-025 NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY$137,525
2021-11-03Permit AL — ISSUED
2021-09-30DOB complaint, category ?
2021-09-27Permit Sidewalk Shed — Signed-off
2021-07-01Permit Supported Scaffold — Signed-off
2021-07-01Job filed: Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/o
2021-06-16Permit AL — ISSUED
2021-06-08Rodent inspection: Passed
2021-04-09HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2021-04-09HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2021-01-22Permit AL — ISSUED
2021-01-11FDNY inspection (STRUC_INT_3)
2020
2020-12-04Rodent inspection: Passed
2020-11-17Permit Sidewalk Shed — Signed-off
2020-11-12DOB complaint, category ?
2020-11-12ECB CLASS - 2 violation: TEMPORARY CONSTRUCTION ON SITE WITH EXPIRED PERMIT - SIDEWALK SHED. SWS INSTALLED AT LOCATION WITHOUT CURRENT PERMIT. PERMIT ON FI
2020-11-12DOB violation C: DUE TO VEHICLE STRIKING SIDEWALK SHED DISPLACING APPROXIMATELY 24 LINEAR FEET
2020-10-26Permit PL — ISSUED
2020-10-09311: Homeless Person Assistance — N/A
2020-09-28Rodent inspection: Failed for Other Reason
2020-02-21Permit AL — ISSUED
2019
2019-12-24311: For Hire Vehicle Complaint — Driver Complaint - Non Passenger
2019-12-24311: Illegal Parking — Blocked Bike Lane
2019-12-03Permit AL — ISSUED
2019-11-18Permit AL — ISSUED
2019-11-12Rodent inspection: Passed
2019-10-30HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2019-09-13Permit AL — ISSUED
2019-08-13DOB complaint, category ?
2019-08-12Permit Sidewalk Shed — Signed-off
2019-08-09Job filed: INSTALLATION OF SIDEWALK SHED AS PER PLANS. SIDEWALK SHED LIVE LOAD 300 PSF, SHALL COMPLY WITH CHAPTER #33 OF THE 2014 CODE NO CHANGE TO USE, EGRES$5,000
2019-08-07ECB CLASS - 1 violation: FAILURE TO COMPLY W/ COMMISSIONER'S ORDER. CONTRACTOR FAILED TO COMPLYW/ COMMISSIONER'S ORDER UNDER DOB VIOLATION 080519CE0403AK,C
2019-08-05DOB violation C:
2019-07-12DOB complaint, category ?
2019-07-12ECB CLASS - 1 violation: FAILURE TYO MAINTAIN/DISPLAY ON SITE DOCUMENTS REQUIRED BY CHAPTER 33(ENGINEER REPORT)AT TIME OF MY INSPECTION,I OBSERVED CEILING $2,500
2019-07-12ECB CLASS - 1 violation: WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCS.(PLAN)ON SITE.AT TIME OF INSPECTION,I OBSERVED AN ACTIVE CONSTRUCTION SITE WI$2,500
2019-06-20Permit AL — ISSUED
2019-05-23311: Graffiti — Graffiti
2019-05-20Rodent inspection: Passed
2019-03-19EASE — from KNICKERBOCKER 427, LLC to KNICKERBOCKER 427, LLC
2018
2018-12-29311: Consumer Complaint — Non-Delivery Goods/Services
2018-11-13Rodent inspection: Passed
2018-10-18HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2018-10-09Job filed: STRUCTURAL WORK AS PER PLANS FILED.
2018-10-09Job filed: PLUMBING AND MECHANICAL WORK AS PER PLANS FILED.
2018-09-24Job filed: INTERIOR RENOVATION OF EXISTING MIXED-USE BUILDING INCLUDING RELOCATION OF EGRESS STAIR AND ADDITION OF DWELLING UNITS.$679,250
2018-09-02311: Special Projects Inspection Team (SPIT) — Sign/Awning/Marquee - Illegal/No Permit
2018-09-02DOB complaint, category ?
2018-08-22311: Graffiti — Graffiti
2018-05-15311: Graffiti — Graffiti
2018-05-11Rodent inspection: Passed
2017
2017-11-29Rodent inspection: Passed
2017-11-24HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2017-09-20311: Graffiti — Graffiti
2017-08-22Rodent inspection: Passed
2017-07-24311: Sanitation Condition — 15 Street Cond/Dump-Out/Drop-Off
2017-06-01311: Graffiti — Graffiti
2017-05-25Mortgage $5,000,000 — from KNICKERBOCKER 427, LLC to ISRAEL DISCOUNT BANK OF NEW YORK$5,000,000
2017-05-25AL&R $5,000,000 — from KNICKERBOCKER 427, LLC to ISRAEL DISCOUNT BANK OF NEW YORK$5,000,000
2017-05-19Deed $6,000,000 — from COHEN & GREENBERG LLC to KNICKERBOCKER 427, LLC$6,000,000
2017-05-12Sold for $6,000,000$6,000,000
2017-04-24Rodent inspection: Passed
2016
2016-02-08Rodent inspection: Passed
2015
2015-05-06FDNY inspection (RISK)
2014
2014-06-13Rodent inspection: Passed
2013
2013-08-09HPD class I: SECTION 27-2089 ADM CODE ABOVE PREMISES HAVE BEEN VACANT AND UNTENANTED EXCEPT FOR CARETAKER FOR 60 DAYS OR MORE, AND CANNOT BE REOCCUPIED U
2012
2012-05-29Rodent inspection: Passed
2012-05-16HPD class I: SECTION 27-2089 ADM CODE ABOVE PREMISES HAVE BEEN VACANT AND UNTENANTED EXCEPT FOR CARETAKER FOR 60 DAYS OR MORE, AND CANNOT BE REOCCUPIED U
2012-04-20311: Graffiti — Graffiti
2010
2010-06-18311: Electrical — Electrical Wiring Defective/Exposed
2010-06-18DOB complaint, category ?
2010-04-08311: Consumer Complaint — Damaged/Defective Goods
2010-01-07Job filed: FILED HEREWITHIN, DRAWINGS TO RENOVATE THE EXISTING RETAIL SPACE (UG 6). SCOPE OF WORK DOES NOT REQUIRE CHANGE OF OCCUPANCY, USE OR EGRESS.$50,000
2010-01-07Permit EW — ISSUED
2008
2008-10-06Deed — from ELLEN SUSSMAN AS TRUSTEE; MARTIN MEYERS AS TRUSTEE; ZEEMAN(DECEASED), RITA to COHEN & GREENBERG LLC
2008-06-20CORRD — from GINGISS, NANCY to COHEN & GREENBERG LLC
2007
2007-10-04DOB complaint, category ?
2006
2006-08-30ECB Hazardous violation: OCCUPANCY CONTRARY TO THAT ALLOWED BY C OF O. C OF O #4484.FROM:ONE FAMILY DWELLING. TO:STORE. REMEDY:OBTAIN C OF O.
2006-07-18DOB complaint, category ?
2003
2003-04-17Permit EW — ISSUED
2003-04-17Permit EQ — ISSUED
2003-04-15Job filed: TO INSTALL NEW STORE FRONT AND NEW FLOOR COVERING ONLY. NO CHANGE IN USE, EGRESS OR OCCUPANCY.$14,000
2001
2001-06-14ECB Non-Hazardous violation: WORK WITHOUT A PERMIT.WORK NOTED:THE FACADE OF BUILDING,HAS BEEN A ALTERED.ALL OPENINGS HAVE BEEN SEALED COINTRARY TO SECTION 27-2
2001-06-14DOB violation C: WORK WITHOUT A PERMIT. WORK NOTED: THE FACADE OF THE BUILDING HAS BEEN ALTERED ALL OPENINGS HAVE BEEN SEALED CONTRARY TO SECTION 27
1999
1999-12-14Permit EQ — ISSUED
1999-11-22Permit EW — ISSUED
1999-11-22Permit EQ — ISSUED
1999-11-01ECB Non-Hazardous violation: FAILURE TO MAINTAIN EXTERIOR BUILDING WALL. DEFECT IS: BROKEN, LOOSE & MISSING TILE ON FRONT OF PREMISES AT PARAPET AREA. BROKEN$800
1999-06-16Deed — from KORNWEISER, LESLIE/EX; SHAW, JANE/LWT to COHEN & GREENBERG LLC
1999-06-16Deed — from ISRAEL, JOAN/EX; ZEEMAN, RITA/LWT to COHEN & GREENBERG LLC
1999-04-27DOB complaint, category ?
1997
1997-02-12DOB complaint, category ?
1993
1993-02-24ECB Non-Hazardous violation: FAILURE TO MAINTIAN DEFECTIVE IS HOLES VARIOUS LOCATION IN HALL WAY FROM 1ST FLOOR THROUGH 3 FLOOR AND 2 AND 3 FLOOR CEILINGS.OCCU$700
1991
1991-04-08ECB Non-Hazardous violation: FAILURE TO MAINTAIN. NUMEROUS HOLES THROUGHOUT HALLWAY 2ND AND 3RD FLOORS CEILING. OCCUPANCY CONTRARY TO THAT ALLOWED BY BUILD$2,000
1990
1990-08-03DOB complaint, category ?
1988
1988-06-17Deed — from GINGISS, DORIS/LWT; GINGISS, NANCY; SHAW, JANE to SHAW, JANE; ZEEMAN, RITA; GINGIS, NANCY
1978
1978-05-09Deed — from COHEN BARBARA EXECUTRIX OF to COHEN SID
1978-04-21HPD class I: D26-35.01 ADM CODE ABOVE PREMISES HAVE BEEN VACANT AND UNTENANTED EXCEPT FOR CARETAKER FOR 60 DAYS OR MORE, AND CANNOT BE REOCCUPIED UNTIL A
1969
1969-05-28Deed — from GINGISS DORIS; ZEEMAN RITA to GINGISS DORIS
1969-05-02Deed — from GREENBERG HANNAH DECEASED to GINGISS DORIS; ZEEMAN RITA

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