Miscellaneous two family

8638 20 AVENUE

BROOKLYN · BIN 3347092

💬 Discuss this project

1920Year Built

2.75Stories

B9Building Class

R5Zoning

5,030 sfGross Floor Area

2Units

Rent Stabilized2 Open Violations ▸FDNY Report ↗

Miscellaneous two family · 4,060 sf lot · 1.24 FAR built · Flood zone X

Locations of Work

ArchitectureElectricalPlumbing

Roof1p · 1 filing · 10 docs

Floor 216p · 1 filing · 20 docs

Floor 116p · 1 filing · 20 docs

Cellar1p · 1 filing · 10 docs

Basement14p · 1 filing · 20 docs

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
03/08/2021	$1.7M	—	Private party → JCKC LLC	$338/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
NYX ENGINEERING, PLLC	10	11/20/2024

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
MIN FA CONSTRUCTION CORP	General Contractor	12	07/08/2026
FLYTIGER P & H LTD	Plumbing	8	07/08/2026
XIAO HUANG	Electrical	1	03/21/2026
HI-RITE ELECTRIC CORP 003385	General Contractor	1	03/22/2026
NYX ENGINEERING, PLLC	General Contractor	1	03/22/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
NKM ENGINEERING PLLC	6244	9	11/20/2024

Building Lifecycle

All (54)Filed (10)Permit Issued (9)Signed Off (3)Violation (27)Inspection (5)

11/20/2024

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-P5

11/05/2024

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-P4

06/27/2024

Signed off — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-S1

04/17/2024

Inspection — Pass-Final CND-Occupancy Inspection

Pass

View inspection ↗

03/11/2024

Signed off — Alteration

FILE FOR PLUMBING WORK TYPE IN CONJUNCTION WITH ALT1 #B00562844.

B00628390-I1

03/05/2024

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-P3

01/17/2024

Inspection — Pass-Final PL - Up to 9 Requested Floors

Pass

View inspection ↗

01/04/2024

Filed — Alteration

FILE FOR PLUMBING WORK TYPE IN CONJUNCTION WITH ALT1 #B00562844.

B00628390-P1

01/04/2024

Inspection — Pass-Final PL - Up to 9 Requested Floors

Pass

View inspection ↗

11/14/2023

Permit issued — General Construction

B00562844-I1-GC

11/10/2023

Signed off — Alteration

B00558671-I1

07/15/2023

Permit issued — Construction Fence

B00558671-I1-FN

06/01/2023

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-P2

04/25/2023

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

04/14/2023

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

Pass

View inspection ↗

04/04/2023

Inspection — Pass-Final PL - Up to 9 Requested Floors

Pass

View inspection ↗

03/30/2023

Permit issued — Plumbing

B00628390-I1-PL

03/20/2023

Violation issued (HPD, closed)

02/01/2023

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-P1

11/10/2022

Permit issued — Earth Work

B00562844-S1-GC-CX

11/09/2022

Permit issued — General Construction

B00562844-I1-GC

09/21/2022

Permit issued — Plumbing

B00628390-I1-PL

09/20/2022

Permit issued — General Construction

B00562844-I1-GC

09/14/2022

Permit issued — General Construction

B00562844-S1-GC-CX

06/23/2022

Filed — Alteration

FILE FOR PLUMBING WORK TYPE IN CONJUNCTION WITH ALT1 #B00562844.

B00628390-I1

05/16/2022

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-S1

05/09/2022

Permit issued — Construction Fence

B00558671-I1-FN

02/22/2022

Violation issued (HPD, closed)

07/29/2021

Filed — Alteration

B00558671-I1

07/29/2021

Filed — ALT-CO - New Building with Existing Elements to Remain

PROPOSE HORIZONTAL AND VERTICAL EXTENSION AND CONVERT FROM COMMUNITY FACILITY AND TWO DWELLING UNITS TO TWO DWELLING UNITS. OBTAIN NEW CERTIFICATE OF OCCUPANCY.

B00562844-I1

04/12/2021

Violation issued (HPD, closed)

04/06/2021

Violation issued (HPD, closed)

10/28/2019

Violation issued (HPD, closed)

06/07/2019

Violation issued (ECB, closed)

Construction

03/26/2019

Violation issued (FDNY_NOV, closed)

10/12/2018

Violation issued (HPD, closed)

11/16/2017

Violation issued (HPD, closed)

05/04/2017

Violation issued (ECB, closed)

Construction

05/04/2017

Violation issued (ECB, closed)

Construction

02/24/2017

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

11/01/2016

Violation issued (HPD, closed)

10/05/2016

Violation issued (ECB, closed)

Construction

10/05/2016

Violation issued (ECB, closed)

Construction

04/20/2016

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

03/10/2016

Violation issued (ECB, closed)

Construction

01/28/2016

Violation issued (ECB, closed)

Construction

10/06/2015

Violation issued (HPD, closed)

02/06/2015

Violation issued (HPD, closed)

02/14/2005

Violation issued (HPD, closed)

03/18/1986

Violation issued (HPD, closed)

03/18/1986

Violation issued (HPD, closed)

03/18/1986

Violation issued (HPD, closed)

03/18/1986

Violation issued (HPD, closed)

01/20/1982

Violation issued (HPD, closed)

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Permit Issued	MIN FA CONSTRUCTION CORP	11/14/2023
DOB NOW	Construction Fence	Signed-off	MIN FA CONSTRUCTION CORP	07/15/2023
DOB NOW	Plumbing	Signed-off	FLYTIGER P & H LTD	03/30/2023
DOB NOW	Earth Work	Signed-off	MIN FA CONSTRUCTION CORP	11/10/2022
DOB NOW	General Construction	Permit Issued	MIN FA CONSTRUCTION CORP	11/09/2022
DOB NOW	Plumbing	Signed-off	FLYTIGER P & H LTD	09/21/2022
DOB NOW	General Construction	Permit Issued	MIN FA CONSTRUCTION CORP	09/20/2022
DOB NOW	General Construction	Signed-off	MIN FA CONSTRUCTION CORP	09/14/2022
DOB NOW	Construction Fence	Signed-off	MIN FA CONSTRUCTION CORP	05/09/2022

1 project · most recent 01/20/2023

General Wiring Lighting

Filed	Status	Contractor	Scope
01/20/2023	Complete	HI-RITE ELECTRIC CORP	General Wiring, Lighting

1 project · most recent 11/20/2024

Steel Masonry

Filed	Status	Contractor	Scope
11/20/2024	Permit Issued	MIN FA CONSTRUCTION CORP	Steel, Masonry

1 project · most recent 11/20/2024

Earthwork

Filed	Status	Contractor	Scope
11/20/2024	Permit Issued	MIN FA CONSTRUCTION CORP	Earthwork

▾Field Inspections (DOB CAP) — 5

Date	Type	Result	Report
04/17/2024	Pass-Final CND-Occupancy Inspection	Pass	View ↗
01/17/2024	Pass-Final PL - Up to 9 Requested Floors	Pass	View ↗
01/04/2024	Pass-Final PL - Up to 9 Requested Floors	Pass	View ↗
04/14/2023	Pass-Final PL - Up to 3 Requested Floors	Pass	View ↗
04/04/2023	Pass-Final PL - Up to 9 Requested Floors	Pass	View ↗

▾Special Inspection Requirements (DOB NOW) — 59

Date	Requirement	Inspector	Role
12/03/2024	Excavations - Sheeting, Shoring, and Bracing	NARESH MAHANGU	special
12/03/2024	Concrete - Cast-In-Place	NARESH MAHANGU	special
12/03/2024	Subgrade Inspections	NARESH MAHANGU	special
12/03/2024	Fire-Resistant Penetrations and Joints	NARESH MAHANGU	special
12/03/2024	Chimneys and vents	NARESH MAHANGU	special
12/03/2024	Masonry	NARESH MAHANGU	special
12/03/2024	Structural Stability – Alterations of existing buildings	NARESH MAHANGU	special
12/03/2024	Fire-Resistance Rated Construction	NARESH MAHANGU	progress
12/03/2024	Energy Code Compliance Inspections	NARESH MAHANGU	progress
12/03/2024	Maintenance information	NARESH MAHANGU	energy_progress
12/03/2024	Protection of exposed foundation insulation	NARESH MAHANGU	energy_progress
12/03/2024	HVAC-R and service water piping design and insulation	NARESH MAHANGU	energy_progress
12/03/2024	Insulation placement and R values	NARESH MAHANGU	energy_progress
12/03/2024	Air barrier - visual inspection	NARESH MAHANGU	energy_progress
12/03/2024	Interior lighting power	NARESH MAHANGU	energy_progress
12/03/2024	Fenestration areas	NARESH MAHANGU	energy_progress
12/03/2024	Fenestration and door U-factor and product ratings	NARESH MAHANGU	energy_progress
12/03/2024	Fenestration air leakage	NARESH MAHANGU	energy_progress
02/26/2024	Fire-Resistance Rated Construction	NARESH MAHANGU	progress
02/26/2024	Chimneys and vents	NARESH MAHANGU	special
02/26/2024	Concrete - Cast-In-Place	NARESH MAHANGU	special
02/26/2024	Excavations - Sheeting, Shoring, and Bracing	NARESH MAHANGU	special
02/26/2024	Fire-Resistant Penetrations and Joints	NARESH MAHANGU	special
02/26/2024	Masonry	NARESH MAHANGU	special
02/26/2024	Structural Stability – Alterations of existing buildings	NARESH MAHANGU	special

Latest 25 of 59.

▾Documents — 84 on file (BIS + DOB NOW)

▸Plans & Drawings10

▸DOB NOWPlans/Sketch10

09/01/2026B00558671-I1Request digital key ↗

08/29/2026B00562844-P5Request digital key ↗

08/29/2026B00562844-S1Request digital key ↗

Showing 3 of 10 on file for this type

▸Applications & Permits1

▸BISBPP-5 - Authorization to the Department of Transportation1

12/27/2023340903801Open ↗

▸Zoning, Tax Lot & Property Records13

▸DOB NOWZD1: DOB Zoning Diagram6

08/13/2026B00562844-P5Open ↗

08/13/2026B00562844-P1Open ↗

08/13/2026B00562844-P2Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWZoning Exhibit form (1-5)6

08/13/2026B00562844-I1Open ↗

08/13/2026B00562844-P1Open ↗

08/13/2026B00562844-P2Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWHouse Number Verification: TOPO Stamp1

08/13/2026B00562844-I1Open ↗

▸Seals & Professional Certifications24

▸DOB NOWDPL-1: Design Professional Seal & Signature10

09/01/2026B00558671-I1Open ↗

08/29/2026B00562844-P1Open ↗

08/29/2026B00562844-I1Open ↗

Showing 3 of 10 on file for this type

▸DOB NOWProgress Inspector Seal & Signature8

08/28/2026B00562844-P2Open ↗

08/26/2026B00562844-P3Open ↗

Showing 3 of 8 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature4

08/28/2026B00562844-P2Open ↗

08/26/2026B00562844-P3Open ↗

08/26/2026B00562844-P1Open ↗

Showing 3 of 4 on file for this type

▸BISAPPLICANT OWNER SIGNATURE2

01/11/2024340903801Open ↗

12/27/2023340903801Open ↗

▸Trade Schedules & Equipment7

▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)7

08/13/2026B00562844-P3Open ↗

08/13/2026B00562844-P2Open ↗

08/13/2026B00562844-P1Open ↗

Showing 3 of 7 on file for this type

▸Safety & Tenant Protection2

▸BISBPP: STREET TREES SITE PLAN1

12/27/2023340903801Open ↗

▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1

08/13/2026B00562844-I1Open ↗

▸Environmental & Asbestos2

▸DOB NOWDEP ACP-5: Asbestos Assessment Report2

08/13/2026B00628390-I1Open ↗

08/13/2026B00628390-P1Open ↗

▸Energy Compliance2

▸DOB NOWEN2: As Built Energy Analysis.2

08/13/2026B00562844-I1Open ↗

08/13/2026B00628390-I1Open ↗

▸Approvals, Objections & Sign-offs1

▸BISBPP-8 - Request Items for Builders Pavement Plan Signoff1

12/27/2023340903801Open ↗

▸Cost, Insurance & Ownership2

▸DOB NOWCertification by Insurance Broker or Agency1

08/13/2026B00562844-I1Open ↗

▸DOB NOWCertificate of Insurance1

08/13/2026B00562844-I1Open ↗

▸Filing & Intake Forms2

▸BISBPP: CHECKLIST IN LIEU OF PLANS-ALT31

12/27/2023340903801Open ↗

▸BISEFILING JOB APPLICATION COVER SHEET1

12/27/2023340903801Open ↗

▸Other Documents18

▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone7

08/13/2026B00562844-P3Open ↗

08/13/2026B00562844-I1Open ↗

08/13/2026B00562844-P1Open ↗

Showing 3 of 7 on file for this type

▸DOB NOWSite Survey: Initial6

08/13/2026B00562844-I1Open ↗

08/13/2026B00562844-P5Open ↗

08/13/2026B00562844-P1Open ↗

Showing 3 of 6 on file for this type

▸BISBPP - SUPPORTING DOCUMENTATION2

01/11/2024340903801Open ↗

▸DOB NOWFinal Survey1

08/13/2026B00562844-I1Open ↗

▸DOB NOWAdjoining Owners Notification1

08/13/2026B00562844-S1Open ↗

▸DOB NOWAdditional Insured Authorizations1

08/13/2026B00562844-I1Open ↗