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Design Firm
SANKAR K MANDAL P.E
Design
11 projects with open permitsQUEENS · 14BROOKLYN · 7BRONX · 4
22 buildings
39
Total Filings
28
Projects on File
22
Buildings Worked
11
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month27 projects all-time
0134May '18 · 1Jul '18 · 1Jul '19 · 1Sep '19 · 1Jan '20 · 1Nov '20 · 1Dec '20 · 1Feb '21 · 2Apr '21 · 1May '21 · 2Jun '21 · 3Jul '21 · 1Aug '21 · 2Sep '21 · 2Jan '22 · 1Feb '22 · 1Jul '22 · 2Aug '22 · 2Oct '23 · 120192020202120222023
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit1139%
Signed off829%
Filed only932%
By project type
Alteration28
Most active buildings
All buildings →
117 EAST 35 STREETBROOKLYN · 3 open · latest 06/04/2026
3 projects
20 GABRIEL DRIVEBRONX · 1 open · latest 07/01/2024
2 projects
79-09 ROOSEVELT AVENUEQUEENS · latest 06/24/2021
2 projects
101-20 LIBERTY AVENUEQUEENS · 2 open · latest 01/20/2022
2 projects
114-16 169 STREETQUEENS · 2 open · latest 09/22/2021
2 projects
322 WEST 47 STREETMANHATTAN · latest 06/26/2024
1 projects
SANKAR MANDALlatest 12/02/2022
22 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00451116 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued02/08/202106/04/2026
Contractor DENNIS DG
INTERIOR RENOVATION CELLAR, FIRST, SECOND AND ADDITION THIRD FLOOR PLAN TO OBTAIN NEW CERTIFICATE OF OCCUPANCY
B00508287 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued05/11/202106/04/2026
Contractor DENNIS DG CORP
REPLACE JOIST AT ROOF SECOND FLOOR AND PROIPOSED STELL FRAME AT THIR FLOOR
B00503160 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued05/10/202104/22/2026plumbing
X00757261 ↗20 GABRIEL DRIVE
BRONX
AlterationPermit Issued07/13/202207/01/2024REMOVING RESIDENTIAL SINK, SHOWER AND CAPPED. LEGALIZING 2PC OF BATHROOM (LAV AND TOILET) AT CELLAR. REMOVING RESIDENTIAL SINK & CAPPED TO 1…
M00945380 ↗322 WEST 47 STREET
MANHATTAN
AlterationSigned-off10/13/202306/26/2024REPLACE DAMAGED BULKHEAD & REPLACE DAMAGED ROOF JOISTS. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
X00796906 ↗3558 CARLISLE PLACE
BRONX
AlterationSigned-off08/23/202202/21/2023RELOCATE FRONT BRICK STAIRS
Counts cover all 28 projects (28 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
SANKAR MANDAL2212/02/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CONSTSCAPE112/27/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SIGNORE & SONS PLBG CORP307/13/2022
CHRISTIAN G'NRL CONST COR207/01/2022
DENNIS DG CORP205/11/2021
A & GV STUCCO CONSTR CORP107/04/2018
ALL PRO PLBG & HTG INC110/08/2021
ANSWER CONSTRUCTION CORP108/14/2021
COMPLEX DEVELOPMENT INC107/13/2021
G GENERAL CONSTRUCTION LL108/23/2022
HAROLD HEADLEY PLUMBING108/14/2021
KISHAN PLBG & HEATING INC101/13/2022
L&J PLG & HTG CO OF NY IN101/18/2020
MOKEN HOME IMPROVEMENT102/08/2021
N G A CONTRACTOR INC103/01/2022
QUINTUNA SERVICE CORP109/23/2021
S & BROTHER RENOVATION IN108/23/2022
S.O.S. PLBG & HTG LTD112/27/2022
STILLWELL TEAM INC110/13/2023
VILLAGE P & H NY INC111/20/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
101 WOODHAVEN CO.102/10/2021
234 HILLSIDE ACQUISITIONS LLC1—
QUINTUNA SERVICES CORP109/23/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
FAST BUILDING SOLUTIONS INC902/25/2022
SOL & SON CONTRACTOR ASSOCIATE LTD512/27/2022
DRAFTING DESIGN & EXPEDITING110/08/2021
NY State Solar LLC103/01/2022
28 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 28Open permit 11Signed off 8Filed only 9
28 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B00451116 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued02/08/202106/04/2026
Contractor DENNIS DG
INTERIOR RENOVATION CELLAR, FIRST, SECOND AND ADDITION THIRD FLOOR PLAN TO OBTAIN NEW CERTIFICATE OF OCCUPANCY
B00508287 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued05/11/202106/04/2026
Contractor DENNIS DG CORP
REPLACE JOIST AT ROOF SECOND FLOOR AND PROIPOSED STELL FRAME AT THIR FLOOR
B00503160 ↗117 EAST 35 STREET
BROOKLYN
AlterationPermit Issued05/10/202104/22/2026plumbing
X00757261 ↗20 GABRIEL DRIVE
BRONX
AlterationPermit Issued07/13/202207/01/2024REMOVING RESIDENTIAL SINK, SHOWER AND CAPPED. LEGALIZING 2PC OF BATHROOM (LAV AND TOILET) AT CELLAR. REMOVING RESIDENTIAL SINK & CAPPED TO 1…
M00945380 ↗322 WEST 47 STREET
MANHATTAN
AlterationSigned-off10/13/202306/26/2024REPLACE DAMAGED BULKHEAD & REPLACE DAMAGED ROOF JOISTS. NO CHANGE IN USE, OCCUPANCY OR EGRESS.
X00796906 ↗3558 CARLISLE PLACE
BRONX
AlterationSigned-off08/23/202202/21/2023RELOCATE FRONT BRICK STAIRS
X00757223 ↗20 GABRIEL DRIVE
BRONX
AlterationSigned-off07/01/202201/31/2023FILING TO REMOVE PARTITION WITH ENTRY AND RESTORE PREVIOUS CONDITIONS, NO CHANGE IN USE, OCCUPANCY. CONSTRUCTION OR EGRESS UNDER THIS APPLI…
Q00788879 ↗50-65 41 STREET
QUEENS
AlterationSigned-off08/11/202211/15/2022THIS APPLICATION IS TO REMOVE BOILER, WH & OIL TANK AND INSTALL 2 NEW GAS NAVIEN TANKLESS, SLOPE SINK, WASHING MACHINE, DRYER AND 3PC OF BAT…
Q00632046 ↗27-31 MCINTOSH STREET
QUEENS
AlterationFiled — no permit on record02/25/2022——
Q00580445 ↗101-20 LIBERTY AVENUE
QUEENS
AlterationPermit Issued09/23/202101/20/2022FILE PROPOSED BEAUTY SALON WITH MINOR INTERIOR RENOVATION AT EXISTINGCOMMERCIAL SPACE ON CELLAR AND FIRST FLOOR. NO CHANGE IN USE, EGRESS OR…
B00654269 ↗9218 AVENUE L
BROOKLYN
AlterationFiled — no permit on record01/05/2022——
Q00580454 ↗101-20 LIBERTY AVENUE
QUEENS
AlterationPermit Issued09/29/202112/21/2021FILE PROPOSED BEAUTY SALON WITH NEW PLUMBING FIXTURES AT EXISTINGCOMMERCIAL SPACE ON FIRST FLOOR AND PROPOSED RPZ ON CELLAR LEVEL. NOCHANGE …
Q00527290 ↗1873 DEKALB AVENUE
QUEENS
AlterationSigned-off06/01/202111/22/2021PROPOSED 3 PIECE BATHROOM (BATHTUB,TOILET & LAV), WASHER MACHINE, AND UTILITY SINK AT CELLAR LEVEL NO CHANGE IN EGRESS OR OCCUPANCY.
Q00554005 ↗114-16 169 STREET
QUEENS
AlterationPermit Issued08/14/202109/22/2021PROPOSED HALF BATHROOM ENCLOSED, PROPOSED (2) FIXTURES BATHROOM (TOILET AND LAVATORY) AT THE CELLAR LEVEL. NO CHANGE IN USE, EGRESS & OCCUPA…
Q00554015 ↗114-16 169 STREET
QUEENS
AlterationPermit Issued08/14/202109/13/2021PROPOSED HALF BATHROOM ENCLOSED, PROPOSED (2) FIXTURES BATHROOM (TOILET AND LAVATORY) AT THE CELLAR LEVEL. NO CHANGE IN USE, EGRESS & OCCUPA…
S00531551 ↗128 LINCOLN AVENUE
STATEN ISLAND
AlterationPermit Issued07/13/202108/30/2021PROPOSED METAL DUCT EXHAUST AND METAL HOOD AT EXISTING COMMERCIAL BUILDING U.G 6 ON 1ST. FL. NO CHANGE TO USE, EGRESS OR OCCUPANCY UNDER T…
Q00531271 ↗79-09 ROOSEVELT AVENUE
QUEENS
AlterationFiled — no permit on record06/24/2021——
Q00541192 ↗79-09 ROOSEVELT AVENUE
QUEENS
AlterationFiled — no permit on record06/24/2021——
Q00463122 ↗31-50 98 STREET
QUEENS
AlterationSigned-off02/10/202104/27/2021REMOVE OLD GAS BOILER & OLD HWH. PROPOSED (3)PROPOSED (3) THREE NCB-E SERIES NAVIEN BOILER AT EXISTING RESIDENTIAL BUILDING ON CELLAR LEVEL.…
M00497751 ↗786 9 AVENUE
MANHATTAN
AlterationFiled — no permit on record04/03/2021——
Q00434390 ↗95-06 101 AVENUE
QUEENS
AlterationSigned-off12/09/202001/19/2021FILE TO PROPOSE OF 2 AIR CONDITIONING SYSTEMS HANGED FROM THE CEILING. NO CHANGES OF USE, DEPARTURE OR OCCUPANCY
B00424633 ↗5219 5 AVENUE
BROOKLYN
AlterationPermit Issued11/20/202001/15/2021AT THE FIRST FLOOR, DIRECT REPLACEMENT OF (1) 3-COMPARTMENT SINK ONTO THEIR EXISTING PLUMBING ROUGHS. NO CHANGE IN USE, OCCUPANCY OR MEANS O…
Q00270969 ↗25-48 18 STREET
QUEENS
AlterationSigned-off01/18/202001/31/2020PROPOSE 3 PC OF BATHROOM, WASHING MACHINE, SLOPE SINK, ELECTRICAL DRYER AND CREATE WALL TO ENCLOSE BATHROOM. NO CHANGE IN USE, OCCUPANCY OR …
B00215942 ↗767 4 AVENUE
BROOKLYN
AlterationFiled — no permit on record09/14/2019———
X00190098 ↗300 WEST 261 STREET
BRONX
AlterationFiled — no permit on record07/26/2019——
Q00055593 ↗23-50 96 STREET
QUEENS
AlterationPermit Issued07/04/201801/30/2019CONSTRUCTION FENCE IN CONJUNCTION WITH JOB # 421569760
Q00034493 ↗42-16 111 STREET
QUEENS
AlterationFiled — no permit on record05/02/2018——
B00603208911 ERSKINE STREET
BROOKLYN
AlterationFiled — no permit on record———
Scope of Work
HVAC — 1 project · most recent 07/13/2021
Ventilation Systems
Sprinkler / Standpipe — 1 project · most recent 10/08/2021
No specific sub-scope on file — project count only.
Plumbing — 6 projects · most recent 03/01/2022
Water/Sanitary Gas
▾Documents — 198 on file (BIS + DOB NOW)
▸Plans & Drawings36
▸DOB NOWPlans/Sketch26
Showing 3 of 26 on file for this type
▸DOB NOWPlans/Sketch - Plumbing6
09/02/2026B00215942-I1 · 767 4 AVENUERequest digital key ↗
08/28/2026Q00270969-I1 · 25-48 18 STREETRequest digital key ↗
08/15/2026B00424633-I1 · 5219 5 AVENUERequest digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems2
08/27/2026Q00434390-I1 · 95-06 101 AVENUERequest digital key ↗
08/15/2026Q00434390-P1 · 95-06 101 AVENUERequest digital key ↗
▸DOB NOWPlans/Sketch - General Construction1
▸DOB NOWPlans/Sketch - Plumbing Legalization1
▸Applications & Permits1
▸DOB NOWState DEC Permit1
08/13/2026X00190098-I1 · 300 WEST 261 STREETOpen ↗
▸Zoning, Tax Lot & Property Records9
▸DOB NOWRestrictive Declaration/Easement 18
08/26/2026Q00527290-P1 · 1873 DEKALB AVENUEOpen ↗
08/26/2026Q00527290-I1 · 1873 DEKALB AVENUEOpen ↗
08/25/2026Q00788879-P1 · 50-65 41 STREETOpen ↗
Showing 3 of 8 on file for this type
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸Seals & Professional Certifications104
▸DOB NOWProgress Inspector Seal & Signature43
09/28/2026Q00527290-P2 · 1873 DEKALB AVENUEOpen ↗
09/28/2026Q00527290-P2 · 1873 DEKALB AVENUEOpen ↗
09/21/2026Q00554015-I1 · 114-16 169 STREETOpen ↗
Showing 3 of 43 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature36
09/02/2026B00424633-I1 · 5219 5 AVENUEOpen ↗
09/01/2026B00503160-I1 · 117 EAST 35 STREETOpen ↗
09/01/2026B00503160-S1 · 117 EAST 35 STREETOpen ↗
Showing 3 of 36 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature25
09/28/2026Q00527290-P2 · 1873 DEKALB AVENUEOpen ↗
09/28/2026Q00527290-P2 · 1873 DEKALB AVENUEOpen ↗
09/21/2026Q00554015-I1 · 114-16 169 STREETOpen ↗
Showing 3 of 25 on file for this type
▸Trade Schedules & Equipment1
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸Safety & Tenant Protection5
▸DOB NOWTenant Protection Plan3
08/27/2026Q00434390-I1 · 95-06 101 AVENUEOpen ↗
08/13/2026B00215942-I1 · 767 4 AVENUEOpen ↗
08/13/2026Q00434390-P1 · 95-06 101 AVENUEOpen ↗
▸DOB NOWHPD-2: Clinton Special District Anti-Harassment Checklist1
08/13/2026M00945380-I1 · 322 WEST 47 STREETOpen ↗
▸DOB NOWCertificate of No Harassment1
08/13/2026M00945380-I1 · 322 WEST 47 STREETOpen ↗
▸Environmental & Asbestos31
▸DOB NOWDEP ACP-5: Asbestos Assessment Report31
09/02/2026B00424633-I1 · 5219 5 AVENUEOpen ↗
09/01/2026B00503160-I1 · 117 EAST 35 STREETOpen ↗
09/01/2026B00508287-I1 · 117 EAST 35 STREETOpen ↗
Showing 3 of 31 on file for this type
▸Energy Compliance4
▸DOB NOWEN2: As Built Energy Analysis.4
08/26/2026Q00527290-I1 · 1873 DEKALB AVENUEOpen ↗
Showing 1 of 4 on file for this type
▸Cost, Insurance & Ownership2
▸DOB NOWCertification by Insurance Broker or Agency1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸DOB NOWCertificate of Insurance1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸Other Documents5
▸DOB NOWPARTIAL DEMO: 10-DAY Notice1
08/13/2026M00945380-I1 · 322 WEST 47 STREETOpen ↗
▸DOB NOWAdditional Insured Authorizations1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗
▸DOB NOWDHCR Document1
08/13/2026B00424633-I1 · 5219 5 AVENUEOpen ↗
▸DOB NOWPlot Diagram1
08/13/2026B00451116-I1 · 117 EAST 35 STREETOpen ↗