Locations of Work

ArchitectureMechanicalPlumbingGeneral

Roof5p · 1 filing · 18 docs

Floor 31p · 1 filing · 7 docs

Floor 2

Floor 1

Cellar5p · 2 filings · 20 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
WAYFINDER PM	10	07/08/2026
21 POLHEMUS FEE OWNER LLC	1	03/22/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
12/01/2020	$2.3M	—	Private party → 21 POLHEMUS FEE OWNER LLC	$716/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
JAMES CHAI ARCHITECT, P.C.	3	07/14/2022

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
HTX BUILDING CONSULTING	3	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
MK CONTRACTING GROUP INC	General Contractor	12	03/21/2026
CARPEX INC	General Contractor	3	03/21/2026
STARLITE PLBG & HTG CORP	Plumbing	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
JAMES JH CHAI & ASSOCIATE	6481	2	07/14/2022

Building Lifecycle

All (38)Filed (3)Permit Issued (6)Signed Off (2)Violation (13)Inspection (3)Special Inspection (11)

11/14/2025

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

09/23/2024

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

06/30/2023

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

04/25/2023

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

03/24/2023

Violation issued (HPD, closed)

A

11/09/2022

Violation issued (HPD, closed)

I

09/13/2022

Signed off — Alteration

File PL workt through the building in conjunction with OT job # B00542929

B00542956-I1

09/12/2022

Signed off — Alteration

B00542929-I1

08/31/2022

Permit issued — General Construction

B00542929-I1-MS

08/03/2022

Permit issued — Mechanical Systems

B00542929-I1-GC

07/15/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Joon Ho Chai

07/15/2022

Special inspection requirement — Mechanical Systems

Joon Ho Chai

07/15/2022

Special inspection requirement — Final

Joon Ho Chai

07/15/2022

Special inspection requirement — Fire-Resistance Rated Construction

Joon Ho Chai

07/15/2022

Special inspection requirement — Lighting in dwelling units

Joon Ho Chai

07/14/2022

Filed — Alteration

B00542929-P2

07/06/2022

Special inspection requirement — Fire-Resistant Penetrations and Joints

Joon Ho Chai

07/06/2022

Special inspection requirement — Mechanical Systems

Joon Ho Chai

07/06/2022

Special inspection requirement — Final

Joon Ho Chai

07/06/2022

Special inspection requirement — Fire-Resistance Rated Construction

Joon Ho Chai

07/06/2022

Special inspection requirement — Lighting in dwelling units

Joon Ho Chai

05/06/2022

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

Certified

View inspection ↗

11/04/2021

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

Certified

View inspection ↗

11/01/2021

Inspection — Certified Remove/Cap - work done in accordance with code

Certified

View inspection ↗

09/20/2021

Permit issued — General Construction

B00542929-I1-GC

08/17/2021

Permit issued — Mechanical Systems

B00542929-I1-GC

08/03/2021

Permit issued — Plumbing

B00542956-I1-PL

07/30/2021

Permit issued — Mechanical Systems

B00542929-I1-GC

07/20/2021

Filed — Alteration

File PL workt through the building in conjunction with OT job # B00542929

B00542956-I1

07/20/2021

Filed — Alteration

B00542929-I1

07/20/2021

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

Joon Ho Chai

04/12/2021

Violation issued (HPD, closed)

A

11/14/2016

Violation issued (HPD, closed)

I

05/04/1998

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/29/1995

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

06/01/1994

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/16/1993

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

06/01/1993

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Signed-off	CARPEX INC	08/31/2022
DOB NOW	Mechanical Systems	Signed-off	MK CONTRACTING GROUP INC	08/03/2022
DOB NOW	General Construction	Signed-off	MK CONTRACTING GROUP INC	09/20/2021
DOB NOW	Mechanical Systems	Signed-off	MK CONTRACTING GROUP INC	08/17/2021
DOB NOW	Plumbing	Signed-off	STARLITE PLBG & HTG CORP	08/03/2021
DOB NOW	Mechanical Systems	Signed-off	MK CONTRACTING GROUP INC	07/30/2021
BIS	OT	ISSUED	A & W SYSTEMS	10/12/1994

1 project · most recent 09/22/2021

General Wiring

Filed	Status	Contractor	Scope
09/22/2021	Complete	DENMAR ELECTRIC CORP	General Wiring

▾Field Inspections (DOB CAP) — 3

Date	Type	Result	Report
05/06/2022	Certified Water and Sanitary-WS-Fixtures-Finish	Certified	View ↗
11/04/2021	Certified Water and Sanitary-WS-Sanitary Piping-Roughing	Certified	View ↗
11/01/2021	Certified Remove/Cap - work done in accordance with code	Certified	View ↗

▾Special Inspection Requirements (DOB NOW) — 11

Date	Requirement	Inspector	Role
07/15/2022	Fire-Resistant Penetrations and Joints	Joon Ho Chai	special
07/15/2022	Mechanical Systems	Joon Ho Chai	special
07/15/2022	Final	Joon Ho Chai	progress
07/15/2022	Fire-Resistance Rated Construction	Joon Ho Chai	progress
07/15/2022	Lighting in dwelling units	Joon Ho Chai	energy_progress
07/06/2022	Fire-Resistant Penetrations and Joints	Joon Ho Chai	special
07/06/2022	Mechanical Systems	Joon Ho Chai	special
07/06/2022	Final	Joon Ho Chai	progress
07/06/2022	Fire-Resistance Rated Construction	Joon Ho Chai	progress
07/06/2022	Lighting in dwelling units	Joon Ho Chai	energy_progress
07/20/2021	HVAC-R and service water piping design and insulation	Joon Ho Chai	energy_progress

▾Documents — 25 on file (BIS + DOB NOW)

▸Plans & Drawings3

▸DOB NOWPlans/Sketch3

09/01/2026B00542929-I1Request digital key ↗

09/01/2026B00542929-P2Request digital key ↗

09/01/2026B00542956-I1Request digital key ↗

▸Applications & Permits3

▸DOB NOWLPC Approval/Permit3

09/01/2026B00542956-I1Open ↗

08/13/2026B00542929-P2Open ↗

08/13/2026B00542929-I1Open ↗

▸Seals & Professional Certifications10

▸DOB NOWProgress Inspector Seal & Signature5

09/02/2026B00542929-I1Open ↗

08/26/2026B00542929-P2Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature3

09/01/2026B00542929-I1Open ↗

09/01/2026B00542929-P2Open ↗

09/01/2026B00542956-I1Open ↗

▸DOB NOWSpecial Inspector Seal & Signature2

09/02/2026B00542929-I1Open ↗

08/26/2026B00542929-P2Open ↗

▸Environmental & Asbestos3

▸DOB NOWDEP ACP-5: Asbestos Assessment Report3

09/01/2026B00542929-I1Open ↗

09/01/2026B00542929-P2Open ↗

09/01/2026B00542956-I1Open ↗

▸Energy Compliance2

▸DOB NOWEN2: As Built Energy Analysis.2

09/01/2026B00542956-I1Open ↗

08/13/2026B00542929-I1Open ↗

▸Other Documents4

▸DOB NOWDHCR Document4

09/01/2026B00542956-I1Open ↗

08/13/2026B00542929-P2Open ↗

08/13/2026B00542929-I1Open ↗

Showing 3 of 4 on file for this type