Two family converted from one family

170 HERKIMER STREET

BROOKLYN · BIN 3053966

💬 Discuss this project

1901Year Built

3Stories

B3Building Class

R6BZoning

2,604 sfGross Floor Area

2Units

Rent Stabilized0 Open ViolationsFDNY Report ↗

Two family converted from one family · Owner of record: TOWNHOUSE RENTAL, L.L.C. · 1,550 sf lot · 1.68 FAR built · Flood zone X

Locations of Work

Plumbing

Roof1p · 1 filing · 16 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
FREESTONE PROPERTY GROUP	3	07/08/2026
TOWNHOUSE RENTAL, LLC	1	03/21/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
01/26/2023	$2.6M	—	Private party → TOWNHOUSE RENTAL II, L.L.C.	$1,002/sf building
08/03/2021	$910K	—	— → —	$349/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
LANGAN ENGINEERING	1	04/12/2024
CX CONSULTING CORP	6	07/19/2022

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
G DESIGN DRAFTING	12	03/21/2026
WALTER T GORMAN PE	2	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
RAJINDRAH RAMRATTAN	Electrical	3	03/21/2026
SKY VIEW GENERAL CONTRACT	General Contractor	3	03/22/2026
AWT ENVIRONMENTAL SVCS IN	General Contractor	1	07/08/2026
XINLI.CONSTRUCTION LLC	General Contractor	1	07/08/2026
PIPESTYLISTS, INC	Plumbing	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
WALTER T. GORMAN, P.E., P	268	1	04/12/2024
NYX ENGINEERING, PLLC	6118	3	07/19/2022

Building Lifecycle

All (51)Filed (7)Permit Issued (3)Signed Off (3)Violation (2)Inspection (6)Special Inspection (30)

01/22/2025

Signed off — Alteration

Propose installation of a Vapor Mitigation System. No change to use, egress or occupancy.

B01021481-I1

04/25/2024

Permit issued — General Construction

B01021481-I1-GC

04/12/2024

Filed — Alteration

Propose installation of a Vapor Mitigation System. No change to use, egress or occupancy.

B01021481-I1

08/17/2022

Signed off — Alteration

INTERIOR RENOVATION OF (2) FAMILY HOUSE WITH MECHANICAL WORK. PLUMBING WORK WILL BE FILED SEPARATELY. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577054-I1

08/17/2022

Signed off — Alteration

PLUMBING WORK IN CONJUNCTION WITH GC/MS APPLICATION # B00577054. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577055-I1

07/26/2022

Inspection — Pass-Final General Construction Non-Directive 14

Pass

View inspection ↗

07/21/2022

Special inspection requirement — Mechanical Systems

Xiao Huang

07/21/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Xiao Huang

07/21/2022

Special inspection requirement — Final

XIU CHEN

07/21/2022

Special inspection requirement — Fenestration areas

Xiao Huang

07/21/2022

Special inspection requirement — Fenestration and door U-factor and product ratings

Xiao Huang

07/21/2022

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

Xiao Huang

07/21/2022

Special inspection requirement — Duct leakage testing, insulation and design

Xiao Huang

07/21/2022

Special inspection requirement — Maintenance information

Xiao Huang

07/21/2022

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

Xiao Huang

07/21/2022

Special inspection requirement — Interior lighting power

Xiao Huang

07/21/2022

Special inspection requirement — Air barrier - visual inspection

Xiao Huang

07/21/2022

Special inspection requirement — Fenestration air leakage

Xiao Huang

07/21/2022

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

Xiao Huang

07/19/2022

Filed — Alteration

INTERIOR RENOVATION OF (2) FAMILY HOUSE WITH MECHANICAL WORK. PLUMBING WORK WILL BE FILED SEPARATELY. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577054-P2

07/14/2022

Inspection — Certified Water and Sanitary-WS-Fixtures-Finish

Certified

View inspection ↗

07/13/2022

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

Pass

View inspection ↗

07/11/2022

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

Xiao Huang

07/11/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Xiao Huang

07/11/2022

Special inspection requirement — Mechanical Systems

Xiao Huang

07/11/2022

Special inspection requirement — Final

XIU CHEN

07/11/2022

Special inspection requirement — Interior lighting power

Xiao Huang

07/11/2022

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

Xiao Huang

07/11/2022

Special inspection requirement — Maintenance information

Xiao Huang

07/11/2022

Special inspection requirement — Fenestration and door U-factor and product ratings

Xiao Huang

07/11/2022

Special inspection requirement — Fenestration areas

Xiao Huang

07/11/2022

Special inspection requirement — Air barrier - visual inspection

Xiao Huang

07/11/2022

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

Xiao Huang

07/11/2022

Special inspection requirement — Duct leakage testing, insulation and design

Xiao Huang

07/11/2022

Special inspection requirement — Fenestration air leakage

Xiao Huang

03/14/2022

Violation issued (ECB, closed)

Construction

03/14/2022

Violation issued (ECB, closed)

Construction

01/05/2022

Inspection — Certified Gas-Gas-Piping-Roughing

Certified

View inspection ↗

01/05/2022

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

Certified

View inspection ↗

01/05/2022

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

Certified

View inspection ↗

12/30/2021

Special inspection requirement — Energy Code Compliance Inspections

XIU CHEN

12/30/2021

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

Xiao Huang

12/30/2021

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

Xiao Huang

12/30/2021

Special inspection requirement — Maintenance information

Xiao Huang

12/27/2021

Filed — Alteration

PLUMBING WORK IN CONJUNCTION WITH GC/MS APPLICATION # B00577054. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577055-P2

12/21/2021

Filed — Alteration

INTERIOR RENOVATION OF (2) FAMILY HOUSE WITH MECHANICAL WORK. PLUMBING WORK WILL BE FILED SEPARATELY. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577054-P1

12/21/2021

Filed — Alteration

PLUMBING WORK IN CONJUNCTION WITH GC/MS APPLICATION # B00577054. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577055-P1

10/29/2021

Permit issued — Plumbing

B00577055-I1-PL

09/30/2021

Permit issued — General Construction

B00577054-I1-GC-CX

09/06/2021

Filed — Alteration

INTERIOR RENOVATION OF (2) FAMILY HOUSE WITH MECHANICAL WORK. PLUMBING WORK WILL BE FILED SEPARATELY. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577054-I1

09/06/2021

Filed — Alteration

PLUMBING WORK IN CONJUNCTION WITH GC/MS APPLICATION # B00577054. NO CHANGE IN USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

B00577055-I1

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Signed-off	AWT ENVIRONMENTAL SVCS IN	04/25/2024
DOB NOW	Plumbing	Signed-off	T & T PLUMBING INC	10/29/2021
DOB NOW	General Construction	Signed-off	XINLI.CONSTRUCTION LLC	09/30/2021

2 projects · most recent 10/13/2022

General Wiring

Filed	Status	Contractor	Scope
10/13/2022	Complete	ROYAL ELEC'L CONTR'G CORP	General Wiring
09/14/2021	Complete	TRUE POWER ELECL CONT LLC	2 meters, 2 new_meters

▾Field Inspections (DOB CAP) — 6

Date	Type	Result	Report
07/26/2022	Pass-Final General Construction Non-Directive 14	Pass	View ↗
07/14/2022	Certified Water and Sanitary-WS-Fixtures-Finish	Certified	View ↗
07/13/2022	Pass-Final PL - Up to 3 Requested Floors	Pass	View ↗
01/05/2022	Certified Gas-Gas-Piping-Roughing	Certified	View ↗
01/05/2022	Certified Water and Sanitary-WS-Sanitary Piping-Roughing	Certified	View ↗
01/05/2022	Certified Water and Sanitary-WS-Sanitary Piping-Underground	Certified	View ↗

▾Special Inspection Requirements (DOB NOW) — 41

Date	Requirement	Inspector	Role
07/21/2022	Mechanical Systems	Xiao Huang	special
07/21/2022	Fire-Resistant Penetrations and Joints	Xiao Huang	special
07/21/2022	Final	XIU CHEN	progress
07/21/2022	Fenestration areas	Xiao Huang	energy_progress
07/21/2022	Fenestration and door U-factor and product ratings	Xiao Huang	energy_progress
07/21/2022	HVAC-R and service water heating equipment	Xiao Huang	energy_progress
07/21/2022	Duct leakage testing, insulation and design	Xiao Huang	energy_progress
07/21/2022	Maintenance information	Xiao Huang	energy_progress
07/21/2022	HVAC-R and service water heating system controls	Xiao Huang	energy_progress
07/21/2022	Interior lighting power	Xiao Huang	energy_progress
07/21/2022	Air barrier - visual inspection	Xiao Huang	energy_progress
07/21/2022	Fenestration air leakage	Xiao Huang	energy_progress
07/21/2022	HVAC-R and service water piping design and insulation	Xiao Huang	energy_progress
07/11/2022	HVAC-R and service water heating system controls	Xiao Huang	energy_progress
07/11/2022	Fire-Resistant Penetrations and Joints	Xiao Huang	special
07/11/2022	Mechanical Systems	Xiao Huang	special
07/11/2022	Final	XIU CHEN	progress
07/11/2022	Interior lighting power	Xiao Huang	energy_progress
07/11/2022	HVAC-R and service water piping design and insulation	Xiao Huang	energy_progress
07/11/2022	Maintenance information	Xiao Huang	energy_progress
07/11/2022	Fenestration and door U-factor and product ratings	Xiao Huang	energy_progress
07/11/2022	Fenestration areas	Xiao Huang	energy_progress
07/11/2022	Air barrier - visual inspection	Xiao Huang	energy_progress
07/11/2022	HVAC-R and service water heating equipment	Xiao Huang	energy_progress
07/11/2022	Duct leakage testing, insulation and design	Xiao Huang	energy_progress

Latest 25 of 41.

▾Documents — 35 on file (BIS + DOB NOW)

▸Plans & Drawings7

▸DOB NOWPlans/Sketch7

09/01/2026B00577055-P1Request digital key ↗

09/01/2026B00577055-P2Request digital key ↗

09/01/2026B00577055-I1Request digital key ↗

Showing 3 of 7 on file for this type

▸Seals & Professional Certifications19

▸DOB NOWProgress Inspector Seal & Signature10

09/02/2026B00577054-P2Open ↗

08/28/2026B00577055-P2Open ↗

Showing 3 of 10 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature7

09/01/2026B00577055-P1Open ↗

09/01/2026B00577055-P2Open ↗

09/01/2026B00577055-I1Open ↗

Showing 3 of 7 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature2

09/02/2026B00577054-P2Open ↗

08/26/2026B00577054-I1Open ↗

▸Environmental & Asbestos7

▸DOB NOWDEP ACP-5: Asbestos Assessment Report7

09/01/2026B00577055-I1Open ↗

09/01/2026B00577055-P1Open ↗

09/01/2026B00577055-P2Open ↗

Showing 3 of 7 on file for this type

▸Energy Compliance2

▸DOB NOWEN2: As Built Energy Analysis.2

09/01/2026B00577054-I1Open ↗

08/13/2026B00577055-I1Open ↗