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Design Firm
WAI-TONG CHAN, ARCHITECT, PC
Design
1 project with open permitsMANHATTAN · 7QUEENS · 4BROOKLYN · 1
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8 buildings
26
Total Filings
12
Projects on File
8
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month12 projects all-time
0123Nov '20 · 1Dec '20 · 2Feb '21 · 1Jun '21 · 2Dec '21 · 1Feb '23 · 1May '24 · 1Aug '25 · 1Sep '25 · 1Oct '25 · 120212022202320242025
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit18%
Signed off867%
Filed only325%
By project type
Alteration10
No Work2
Most active buildings
All buildings →
158 WEST 27 STREETMANHATTAN · latest 11/05/2025
3 projects
137 EAST 36 STREETMANHATTAN · latest 05/30/2024
2 projects
25-37 51 AVENUEQUEENS · latest 07/13/2023
2 projects
73 EAST 7 STREETMANHATTAN · 1 open · latest 01/06/2021
1 projects
1325 1 AVENUEMANHATTAN · latest 05/21/2021
1 projects
175 REMSEN STREETBROOKLYN · latest 12/22/2021
1 projects
Key relationships
Everyone →
Filing representatives
1 projects
People
All people →
wai chanlatest 02/11/2026
12 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01243109 ↗158 WEST 27 STREET
MANHATTAN
AlterationSigned-off08/10/202511/05/2025
Owner Stream Realty Partners
Contractor KELLETS ANCHORED HOME IMP
ON THE FIRST FLOOR, INSTALLATION OF 3 COMPARTMENT SINK, ICE MACHINE FLOOR SINK AND HAND SINK, AS ACCESSORY USE FOR EXISTING GYM. ON THE CEL…
M01298985 ↗158 WEST 27 STREET
MANHATTAN
No WorkFiled — no permit on record10/07/2025———
M01255372 ↗158 WEST 27 STREET
MANHATTAN
No WorkFiled — no permit on record09/09/2025———
M01047261 ↗137 EAST 36 STREET
MANHATTAN
AlterationSigned-off05/24/202405/30/2024
Owner FirstService Residential
Contractor SYSTEMS 2000 PLBG SVCS LL
ON SUB-CELLAR LEVEL: EXISTING GAS METER ROOM-DISCONNECT EXISTING GAS METER AND REPLACE GAS PIPING AS INDICATED ON PLAN; EXISTING TENANT LA…
Q00532937 ↗25-37 51 AVENUE
QUEENS
AlterationSigned-off06/16/202107/13/2023
Owner WERWAISS & COMPANY, INC.
Contractor RECORD 13 CONSTRUCTION CO
1ST FLR,: REMOVAL WORK, INSTALL: PARTITIONS AND DOORS; R-38 BATT INSULATION BETWEEN EXIST ROOF JOISTS; ONE HOUR FIRE RATED GYPSUM BOARD CE…
M00833517 ↗137 EAST 36 STREET
MANHATTAN
AlterationFiled — no permit on record02/28/2023———
Counts cover all 12 projects (12 DOB NOW). Dated by first filing; BIS projects by first permit issuance.
Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.
PersonFilingsMost recent
wai chan1202/11/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SPEEDWAY PLUMBING CORP312/22/2020
COBOT PLUMBING AND HEATIN103/16/2022
DOWNTOWN PLBG & HTG INC112/15/2021
G. C. PLBG & HTG INC103/18/2026
HEADQUARTERS MECH INC105/26/2021
KELLETS ANCHORED HOME IMP103/18/2026
PAVILLION CONTRACTING INC104/24/2023
RECORD 13 CONSTRUCTION CO104/24/2023
SYSTEMS 2000 PLBG SVCS LL105/24/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
WERWAISS & COMPANY, INC.204/24/2023
FirstService Residential105/24/2024
Stream Realty Partners103/18/2026
VERCO PROPERTIES112/22/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
COBOT PLUMBING AND HEATING INC103/16/2022
12 DOB NOW projects, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.
All 12Open permit 1Signed off 8Filed only 3
Any typeAlteration 10No Work 2
12 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01243109 ↗158 WEST 27 STREET
MANHATTAN
AlterationSigned-off08/10/202511/05/2025
Owner Stream Realty Partners
Contractor KELLETS ANCHORED HOME IMP
ON THE FIRST FLOOR, INSTALLATION OF 3 COMPARTMENT SINK, ICE MACHINE FLOOR SINK AND HAND SINK, AS ACCESSORY USE FOR EXISTING GYM. ON THE CEL…
M01298985 ↗158 WEST 27 STREET
MANHATTAN
No WorkFiled — no permit on record10/07/2025———
M01255372 ↗158 WEST 27 STREET
MANHATTAN
No WorkFiled — no permit on record09/09/2025———
M01047261 ↗137 EAST 36 STREET
MANHATTAN
AlterationSigned-off05/24/202405/30/2024
Owner FirstService Residential
Contractor SYSTEMS 2000 PLBG SVCS LL
ON SUB-CELLAR LEVEL: EXISTING GAS METER ROOM-DISCONNECT EXISTING GAS METER AND REPLACE GAS PIPING AS INDICATED ON PLAN; EXISTING TENANT LA…
Q00532937 ↗25-37 51 AVENUE
QUEENS
AlterationSigned-off06/16/202107/13/2023
Owner WERWAISS & COMPANY, INC.
Contractor RECORD 13 CONSTRUCTION CO
1ST FLR,: REMOVAL WORK, INSTALL: PARTITIONS AND DOORS; R-38 BATT INSULATION BETWEEN EXIST ROOF JOISTS; ONE HOUR FIRE RATED GYPSUM BOARD CE…
M00833517 ↗137 EAST 36 STREET
MANHATTAN
AlterationFiled — no permit on record02/28/2023———
B00635236 ↗175 REMSEN STREET
BROOKLYN
AlterationSigned-off12/15/202112/22/2021
Contractor DOWNTOWN PLBG & HTG INC
DIRECT REPLACEMENT OF EXISTING GAS FIRED HOT WATER HEATER ON CELLAR LEVEL IN EXISTING MECHANICAL ROOM.
Q00533668 ↗25-37 51 AVENUE
QUEENS
AlterationSigned-off06/23/202108/05/2021
Owner WERWAISS & COMPANY, INC.
Contractor COBOT PLUMBING AND HEATIN
Filer COBOT PLUMBING AND HEATING INC
1ST FLR:RELOCATE EXIST WC AND SINK, REPLACE LAV, INSTALL 2 FLR SINKS, GREASE INTERCEPTOR, HAND SINK, TRENCH DRAIN, AND 3 COMP SINK; GAS PIP…
M00444785 ↗1325 1 AVENUE
MANHATTAN
AlterationSigned-off02/10/202105/21/2021
Contractor HEADQUARTERS MECH INC
This application is filed to sign off the plumbing work done under application number BN 6981 / 83 as per submitted plans. No work to be don…
Q00425019 ↗58-60 43 AVENUE
QUEENS
AlterationSigned-off11/30/202001/22/2021
Contractor SPEEDWAY PLUMBING CORP
REMOVE EXISTING OIL FIRED BOILER AND OIL TANK. INSTALL NEW GAS FIRED BOILER AND HOT WATER HEATER. ASSOCIATED PLUMBING WORK. NO CHANGE TO E…
M00439694 ↗73 EAST 7 STREET
MANHATTAN
AlterationPermit Issued12/22/202001/06/2021
Owner VERCO PROPERTIES
Contractor SPEEDWAY PLUMBING CORP
PER GAS UTILITY COMP (CON EDISON), GAS TEST ENTIRE GAS PIPING WITHIN BUILDING. DISCONNECT AND CAP EXISTING GAS RISERS AS REQUIRED, INSTALL T…
Q00440524 ↗155-51 HURON STREET
QUEENS
AlterationSigned-off12/22/202001/06/2021
Contractor SPEEDWAY PLUMBING CORP
GAS PIPING REPAIR WORK AS PER UTILITY COMPANY. ON THE SECOND FLOOR, REPAIR/REPLACE GAS PIPE NIPPLE AND SHUT-OFF VALVE CONNECTED TO EXISTIN…
Scope of Work
Plumbing — 4 projects · most recent 03/18/2026
Gas Water/Sanitary
Electrical — 1 project · most recent 01/15/2026
Lighting
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
158 WEST 27 STREET ↗1102/11/2026
25-37 51 AVENUE ↗603/11/2022
175 REMSEN STREET ↗111/22/2021
155-51 HURON STREET ↗112/14/2020
73 EAST 7 STREET ↗112/11/2020
58-60 43 AVENUE ↗111/06/2020
1325 1 AVENUE ↗3—
137 EAST 36 STREET ↗2—
▾Documents — 130 on file (BIS + DOB NOW)
▸Plans & Drawings24
▸DOB NOWPlans/Sketch12
08/31/2026M00833517-I1 · 137 EAST 36 STREETRequest digital key ↗
08/31/2026B00635236-I1 · 175 REMSEN STREETRequest digital key ↗
08/27/2026M01047261-I1 · 137 EAST 36 STREETRequest digital key ↗
Showing 3 of 12 on file for this type
▸DOB NOWPlans/Sketch - Place of Assembly7
08/18/2026M01255372-I1 · 158 WEST 27 STREETRequest digital key ↗
08/18/2026M01255372-P1 · 158 WEST 27 STREETRequest digital key ↗
08/18/2026M01255372-P2 · 158 WEST 27 STREETRequest digital key ↗
Showing 3 of 7 on file for this type
▸DOB NOWPlans/Sketch - Plumbing5
09/04/2026M00439694-I1 · 73 EAST 7 STREETRequest digital key ↗
09/03/2026M00444785-I1 · 1325 1 AVENUERequest digital key ↗
08/27/2026Q00440524-I1 · 155-51 HURON STREETRequest digital key ↗
Showing 3 of 5 on file for this type
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
08/13/2026M00439694-I1 · 73 EAST 7 STREETOpen ↗
08/13/2026B00635236-I1 · 175 REMSEN STREETOpen ↗
▸Seals & Professional Certifications84
▸DOB NOWProgress Inspector Seal & Signature41
09/03/2026M01243109-I1 · 158 WEST 27 STREETOpen ↗
09/03/2026M01243109-I1 · 158 WEST 27 STREETOpen ↗
09/03/2026M01243109-I1 · 158 WEST 27 STREETOpen ↗
Showing 3 of 41 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature23
09/03/2026M00444785-I1 · 1325 1 AVENUEOpen ↗
09/03/2026M00444785-P1 · 1325 1 AVENUEOpen ↗
08/27/2026Q00425019-I1 · 58-60 43 AVENUEOpen ↗
Showing 3 of 23 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature20
09/03/2026M01243109-I1 · 158 WEST 27 STREETOpen ↗
09/02/2026M01243109-P2 · 158 WEST 27 STREETOpen ↗
09/02/2026Q00532937-P1 · 25-37 51 AVENUEOpen ↗
Showing 3 of 20 on file for this type
▸Safety & Tenant Protection5
▸DOB NOWTenant Protection Plan5
08/13/2026Q00425019-I1 · 58-60 43 AVENUEOpen ↗
08/13/2026M00444785-P1 · 1325 1 AVENUEOpen ↗
08/13/2026Q00440524-I1 · 155-51 HURON STREETOpen ↗
Showing 3 of 5 on file for this type
▸Environmental & Asbestos14
▸DOB NOWDEP ACP-5: Asbestos Assessment Report14
08/27/2026M01047261-I1 · 137 EAST 36 STREETOpen ↗
08/14/2026Q00425019-I1 · 58-60 43 AVENUEOpen ↗
08/13/2026Q00440524-I1 · 155-51 HURON STREETOpen ↗
Showing 3 of 14 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type