Primarily 5-6 family with 1 store or office

427 KNICKERBOCKER AVENUE

BROOKLYN · BIN 3074795

💬 Discuss this project

1931Year Built

3Stories

S5Building Class

C4-3Zoning

5,967 sfGross Floor Area

7Units

Rent Stabilized4 Open Violations ▸FDNY Report ↗

Primarily 5-6 family with 1 store or office · Owner of record: KNICKERBOCKER 427, LLC · 2,500 sf lot · 2.39 FAR built · Flood zone X

Locations of Work

MechanicalGeneral

Roof1p · 1 filing · 4 docs

Floor 11p · 1 filing · 20 docs

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
KNICKERBOCKER 427	15	07/08/2026
ROCK GROUP NY	7	07/08/2026
WINBROOK MANAGEMENT	10	03/22/2026
OWNER OF 427 KNCKERBOJLER	1	03/22/2026
OWNER OF 427 KNICKERBOCKE	1	03/22/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
EUGENE KHANANOV AIA	7	04/28/2022
CONCORD CONSULTING ENGINEERING PC	1	02/08/2022
KZ ENGINEERING, P.C	1	07/01/2021
MOHAMMAD AHEAD, PE	1	08/09/2019

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
SYNERGY BUILDING CONSULTANTS	1	03/21/2026
GREEN STUDIO	2	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
JOSEPH ARDER	Electrical	3	03/21/2026
NYC AIR COOL.SRVC INC	General Contractor	3	03/21/2026
ROCK GROUP NY CORP	General Contractor	2	07/08/2026
SEVENTH FLOOR SERVICES IN	General Contractor	2	03/21/2026
GANLY ELECTRICAL CORP 005017	General Contractor	2	03/22/2026
CS BRIDGE CORP	General Contractor	1	07/08/2026
PLATINUM SERVICES NY LLC	General Contractor	1	07/08/2026
MGI DESIGNED INTERIORS	General Contractor	1	03/22/2026
RITE WAY HEATING CORP	Plumbing	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
EUGENE KHANANOV ARCHITECT	2816	7	04/28/2022
STEEL CORE ENGINEERING PL	1098	1	02/08/2022

Building Lifecycle

All (72)Filed (10)Permit Issued (7)Signed Off (5)Violation (25)Inspection (3)Special Inspection (22)

06/10/2025

Violation issued (HPD, closed)

11/14/2022

Violation issued (HPD, closed)

09/08/2022

Signed off — Alteration

Modifications to an existing HVAC system to match new tenant fit out layout

B00676850-I1

08/25/2022

Signed off — Alteration

B00207276-I1

05/24/2022

Signed off — Alteration

PROPOSED INTERIOR FIT-OUT OF EXISTING COMMERCIAL SPACE, PER B.B.#2009-025 NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648533-I1

05/24/2022

Signed off — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-I1

04/28/2022

Filed — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-P4

04/28/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Eugene Khananov

04/28/2022

Special inspection requirement — HVAC-R and service water piping design and insulation

Eugene Khananov

04/05/2022

Permit issued — Mechanical Systems

B00676850-I1-MS

03/24/2022

Inspection — Pass-Final PL - Up to 3 Requested Floors

Pass

View inspection ↗

03/23/2022

Filed — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-P3

03/17/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Eugene Khananov

03/17/2022

Special inspection requirement — HVAC-R and service water piping design and insulation

Eugene Khananov

03/08/2022

Inspection — Certified Gas-Gas-Piping-Roughing

Certified

View inspection ↗

03/08/2022

Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing

Certified

View inspection ↗

02/25/2022

Violation issued (HPD, closed)

02/25/2022

Violation issued (HPD, closed)

02/11/2022

Filed — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-P2

02/10/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Eugene Khananov

02/10/2022

Special inspection requirement — HVAC-R and service water piping design and insulation

Eugene Khananov

02/08/2022

Filed — Alteration

Modifications to an existing HVAC system to match new tenant fit out layout

B00676850-I1

02/08/2022

Special inspection requirement — Ventilation and air distribution system

Alexander Sheyman

02/08/2022

Special inspection requirement — Mechanical Systems

Alexander Sheyman

02/08/2022

Special inspection requirement — Final

Alexander Sheyman

02/08/2022

Special inspection requirement — HVAC-R and service water piping design and insulation

Alexander Sheyman

02/08/2022

Special inspection requirement — Maintenance information

Alexander Sheyman

02/08/2022

Special inspection requirement — Electrical motors and elevators

Alexander Sheyman

02/08/2022

Special inspection requirement — HVAC-R and service water heating equipment

Alexander Sheyman

02/08/2022

Special inspection requirement — HVAC-R and service water heating system controls

Alexander Sheyman

01/30/2022

Permit issued — Plumbing

B00648539-I1-PL

01/28/2022

Signed off — Alteration

Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.

B00550107-I1

01/21/2022

Special inspection requirement — Lighting controls

Eugene Khananov

01/21/2022

Special inspection requirement — Final

Eugene Khananov

01/21/2022

Special inspection requirement — Energy Code Compliance Inspections

Eugene Khananov

01/21/2022

Special inspection requirement — Interior lighting power

Eugene Khananov

01/21/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Eugene Khananov

01/20/2022

Filed — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-P1

01/20/2022

Filed — Alteration

PROPOSED INTERIOR FIT-OUT OF EXISTING COMMERCIAL SPACE, PER B.B.#2009-025 NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648533-P1

01/19/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Eugene Khananov

01/19/2022

Special inspection requirement — HVAC-R and service water piping design and insulation

Eugene Khananov

12/27/2021

Permit issued — General Construction

B00648533-I1-GC

12/15/2021

Filed — Alteration

PROPOSED INTERIOR FIT-OUT OF EXISTING COMMERCIAL SPACE, PER B.B.#2009-025 NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648533-I1

12/15/2021

Filed — Alteration

PROPOSED PLUMBING WORK IN EXISTING COMMERCIAL SPACE. NO CHANGE IN ZONING USE GROUP, EGRESS OR OCCUPANCY

B00648539-I1

09/27/2021

Permit issued — Sidewalk Shed

B00207276-I1-SH

07/01/2021

Filed — Alteration

Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.

B00550107-I1

07/01/2021

Permit issued — Supported Scaffold

B00550107-I1-SF

06/30/2021

Special inspection requirement — Final

Karol Zdancewicz

04/09/2021

Violation issued (HPD, closed)

04/09/2021

Violation issued (HPD, closed)

11/17/2020

Permit issued — Sidewalk Shed

B00207276-I1-SH

11/12/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

11/12/2020

Violation issued (ECB, closed)

Construction

10/30/2019

Violation issued (HPD, closed)

08/12/2019

Permit issued — Sidewalk Shed

B00207276-I1-SH

08/09/2019

Filed — Alteration

B00207276-I1

08/07/2019

Violation issued (ECB, closed)

Construction

08/05/2019

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

07/12/2019

Violation issued (ECB, closed)

Construction

07/12/2019

Violation issued (ECB, closed)

Site Safety

Latest 60 of 72 events.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Mechanical Systems	Signed-off	NYC AIR COOL.SRVC INC	04/05/2022
DOB NOW	Plumbing	Signed-off	LS PLUMBING CORP	01/30/2022
DOB NOW	General Construction	Signed-off	SEVENTH FLOOR SERVICES IN	12/27/2021
DOB NOW	Sidewalk Shed	Signed-off	PLATINUM SERVICES NY LLC	09/27/2021
DOB NOW	Supported Scaffold	Signed-off	CS BRIDGE CORP	07/01/2021
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	11/17/2020
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	08/12/2019
BIS	—	ISSUED	MGI DESIGNED INTERIORS	11/03/2021
BIS	—	ISSUED	MGI DESIGNED INTERIORS	06/16/2021
BIS	—	ISSUED	MGI DESIGNED INTERIORS	01/22/2021
BIS	PL	ISSUED	RUGOVA GROUP LLC	10/26/2020
BIS	—	ISSUED	MGI DESIGNED INTERIORS	02/21/2020
BIS	—	ISSUED	MGI DESIGNED INTERIORS	12/03/2019
BIS	—	ISSUED	FORTIS CAPITAL CONS INC	11/18/2019
BIS	—	ISSUED	FORTIS CAPITAL CONS INC	09/13/2019
BIS	—	ISSUED	GLOBAL GREEN ENERGY INC	06/20/2019
BIS	OT	ISSUED	SCAMPA CONTRACTING, CORP	01/07/2010
BIS	EQ	ISSUED	NOVA PLUMBING & HEATING INC.	04/17/2003
BIS	OT	ISSUED	NOVA PLUMBING & HEATING INC.	04/17/2003
BIS	EQ	ISSUED	SPRING ENTERPRISES, INC	12/14/1999
BIS	OT	ISSUED	NOVA PLG HTNG INC	11/22/1999
BIS	EQ	ISSUED	NOVA PLG HTNG INC	11/22/1999

5 projects · most recent 10/20/2022

General Wiring

Filed	Status	Contractor	Scope
10/20/2022	Complete	GANLY ELECTRICAL CORP	General Wiring
05/18/2022	Complete	GANLY ELECTRICAL CORP	General Wiring
02/08/2022	Complete	ENTERPRISE ELEC'L SYSTEMS	General Wiring
08/25/2020	Complete	WCK ELECTRIC CORP.	General Wiring
08/07/2019	Complete	ILLUMINOUS ELECTRIC CORP.	—

▾Field Inspections (DOB CAP) — 3

Date	Type	Result	Report
03/24/2022	Pass-Final PL - Up to 3 Requested Floors	Pass	View ↗
03/08/2022	Certified Gas-Gas-Piping-Roughing	Certified	View ↗
03/08/2022	Certified Water and Sanitary-WS-Sanitary Piping-Roughing	Certified	View ↗

▾Special Inspection Requirements (DOB NOW) — 22

Date	Requirement	Inspector	Role
04/28/2022	Fire-Resistant Penetrations and Joints	Eugene Khananov	special
04/28/2022	HVAC-R and service water piping design and insulation	Eugene Khananov	energy_progress
03/17/2022	Fire-Resistant Penetrations and Joints	Eugene Khananov	special
03/17/2022	HVAC-R and service water piping design and insulation	Eugene Khananov	energy_progress
02/10/2022	Fire-Resistant Penetrations and Joints	Eugene Khananov	special
02/10/2022	HVAC-R and service water piping design and insulation	Eugene Khananov	energy_progress
02/08/2022	Ventilation and air distribution system	Alexander Sheyman	energy_progress
02/08/2022	Mechanical Systems	Alexander Sheyman	special
02/08/2022	Final	Alexander Sheyman	progress
02/08/2022	HVAC-R and service water piping design and insulation	Alexander Sheyman	energy_progress
02/08/2022	Maintenance information	Alexander Sheyman	energy_progress
02/08/2022	Electrical motors and elevators	Alexander Sheyman	energy_progress
02/08/2022	HVAC-R and service water heating equipment	Alexander Sheyman	energy_progress
02/08/2022	HVAC-R and service water heating system controls	Alexander Sheyman	energy_progress
01/21/2022	Lighting controls	Eugene Khananov	energy_progress
01/21/2022	Final	Eugene Khananov	progress
01/21/2022	Energy Code Compliance Inspections	Eugene Khananov	progress
01/21/2022	Interior lighting power	Eugene Khananov	energy_progress
01/21/2022	Fire-Resistant Penetrations and Joints	Eugene Khananov	special
01/19/2022	Fire-Resistant Penetrations and Joints	Eugene Khananov	special
01/19/2022	HVAC-R and service water piping design and insulation	Eugene Khananov	energy_progress
06/30/2021	Final	Karol Zdancewicz	progress

▾Documents — 175 on file (BIS + DOB NOW)

▸Plans & Drawings10

▸DOB NOWPlans/Sketch9

09/01/2026B00550107-I1Request digital key ↗

08/31/2026B00648539-I1Request digital key ↗

08/31/2026B00648539-P1Request digital key ↗

Showing 3 of 9 on file for this type

▸DOB NOWPlans/Sketch - Sidewalk Shed1

09/02/2026B00207276-I1Request digital key ↗

▸Applications & Permits31

▸BISPLAN / WORK APPROVAL APPLICATION22

03/29/2023300958499Open ↗

01/23/2023300980570Open ↗

12/14/2022300980570Open ↗

Showing 3 of 22 on file for this type

▸BISWORK PERMIT APPLICATION6

11/04/2021321384453Open ↗

10/26/2020321384453Open ↗

02/24/2020321384453Open ↗

Showing 3 of 6 on file for this type

▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2

06/30/2022321384453Open ↗

04/19/2019321384453Open ↗

▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

09/02/2021321384453Open ↗

▸Zoning, Tax Lot & Property Records2

▸BISVERIFY TAX LOT1

03/27/2023321384453Open ↗

▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1

03/27/2023321384453Open ↗

▸Seals & Professional Certifications30

▸DOB NOWDPL-1: Design Professional Seal & Signature10

08/31/2026B00648539-I1Open ↗

08/31/2026B00648539-P1Open ↗

08/31/2026B00648539-P2Open ↗

Showing 3 of 10 on file for this type

▸DOB NOWProgress Inspector Seal & Signature9

08/26/2026B00550107-I1Open ↗

08/22/2026B00648539-P2Open ↗

08/22/2026B00648539-I1Open ↗

Showing 3 of 9 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature5

08/22/2026B00648539-P2Open ↗

08/22/2026B00648533-I1Open ↗

08/22/2026B00648539-P1Open ↗

Showing 3 of 5 on file for this type

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION4

06/24/2019321384453Open ↗

Showing 3 of 4 on file for this type

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

01/07/2010320117280Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1

01/07/2010320117280Open ↗

▸Trade Schedules & Equipment8

▸BISSCHEDULE B - PLUMBING3

05/07/2021321384453Open ↗

04/29/2021321384453Open ↗

10/21/2020321384453Open ↗

▸BISHVAC & SERVICE WATER HEATING SYSTEM CONTROLS1

01/19/2022321384453Open ↗

▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1

04/13/2022321384453Open ↗

▸BISDETECTOR:CARBON MONOXIDE-CERT.OF INSTALL1

04/13/2022321384453Open ↗

▸BISHVAC & SERVICE WATER HEATING EQUIPMENT1

01/19/2022321384453Open ↗

▸BISFIRE ALARM/SIGNAL SYSTEM (FA) SIGNOFF1

03/22/2022321384453Open ↗

▸Safety & Tenant Protection4

▸BISSTREET TREE CHECKLIST2

04/19/2019321384453Open ↗

01/22/2019321384453Open ↗

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE1

06/24/2019321384453Open ↗

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

06/24/2019321384453Open ↗

▸Environmental & Asbestos10

▸DOB NOWDEP ACP-5: Asbestos Assessment Report8

08/31/2026B00648539-I1Open ↗

08/31/2026B00648539-P1Open ↗

08/31/2026B00648539-P2Open ↗

Showing 3 of 8 on file for this type

▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'1

01/07/2010320117280Open ↗

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

04/19/2019321384453Open ↗

▸Energy Compliance13

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3

03/13/2020321384453Open ↗

05/06/2019321384453Open ↗

04/19/2019321384453Open ↗

▸DOB NOWEN2: As Built Energy Analysis3

08/31/2026B00676850-I1Open ↗

08/13/2026B00648539-I1Open ↗

08/13/2026B00648533-I1Open ↗

▸BISLIGHTING IN DWELLING UNITS1

01/19/2022321384453Open ↗

▸BISENERGY CODE COMPLIANCE INSPECTIONS1

01/19/2022321384453Open ↗

▸BISLIGHTING CONTROLS1

01/19/2022321384453Open ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

01/19/2022321384453Open ↗

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

06/24/2019321384453Open ↗

▸BISELECTRICAL ENERGY CONSUMPTION1

01/19/2022321384453Open ↗

▸BISINTERIOR LIGHTING POWER1

01/19/2022321384453Open ↗

▸Inspections & Test Reports16

▸BISTECHNICAL REPORT: RESPONSIBILITY7

03/03/2023300958499Open ↗

12/21/2022300980570Open ↗

12/20/2022300980570Open ↗

Showing 3 of 7 on file for this type

▸BISFIRE-RESISTIVE RATED CONSTRUCTION1

01/19/2022321384453Open ↗

▸BISMASONRY1

01/19/2022321384453Open ↗

▸BISPOST-INSTALLED ANCHORS1

01/19/2022321384453Open ↗

▸BISSTRUCTURAL STEEL - HIGH STRENGTH BOLTING1

01/19/2022321384453Open ↗

▸BISSTRUCTURAL STEEL - WELDING1

01/19/2022321384453Open ↗

▸BISSTRUCTURAL STABILITY - EXISTING BUILDINGS1

01/19/2022321384453Open ↗

▸BIS* FINAL INSPECTION DIRECTIVE 14 OF 19751

03/03/2023300958499Open ↗

▸BISSTRUCTURAL STEEL - DETAILS1

01/19/2022321384453Open ↗

▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1

01/19/2022321384453Open ↗

▸Approvals, Objections & Sign-offs15

▸BISSCHEDULE A - OCCUPANCY / USE5

06/30/2022321384453Open ↗

06/09/2022321384453Open ↗

04/17/2019321384453Open ↗

Showing 3 of 5 on file for this type

▸BISLETTERS - SUPPORTING DOCUMENTATION4

10/12/2021321384453Open ↗

04/19/2019321384453Open ↗

Showing 3 of 4 on file for this type

▸BISSUPERSEDING LETTER3

02/24/2020321384453Open ↗

12/04/2019321384453Open ↗

11/19/2019321384453Open ↗

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2

03/22/2023300958499Open ↗

02/02/2023300980570Open ↗

▸BISADMINISTRATIVE OBJECTIONS1

01/07/2010320117280Open ↗

▸Cost, Insurance & Ownership4

▸BISCOST AFFIDAVIT3

04/19/2019321384453Open ↗

01/07/2010320117280Open ↗

▸BISCOST AFFIDAVIT (FINAL): PW31

03/27/2023321384453Open ↗

▸Filing & Intake Forms28

▸BISADDITIONAL INFORMATION24

04/12/2023321384453Open ↗

04/10/2023321384453Open ↗

04/06/2023321384453Open ↗

Showing 3 of 24 on file for this type

▸BISEFILING COVER SHEET3

10/09/2018321384453Open ↗

01/07/2010320117280Open ↗

▸BISBOROUGH INTAKE FORM1

11/04/2021321384453Open ↗

▸Other Documents4

▸BISSTRUCTURAL COLD-FORMED STEEL1

01/19/2022321384453Open ↗

▸BISMAINTENANCE INFORMATION1

01/19/2022321384453Open ↗

▸BISPERMANENT CERTIFICATE1

01/19/2022321384453Open ↗

▸BISPLOT DIAGRAM1

04/19/2019321384453Open ↗