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Contractor
WILLIAM STANISLAWCZYK
General Contractor
2 projects with open permitsMANHATTAN · 10BRONX · 3
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12 buildings
8
Total Filings
13
Projects on File
5
Buildings Worked
2
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month13 projects all-time
0112Jan '01 · 1Oct '06 · 1Jul '08 · 1Jul '09 · 1Jun '11 · 1Apr '13 · 1Mar '15 · 1Aug '21 · 1Jul '22 · 1Sep '22 · 1Feb '24 · 1Apr '24 · 1Apr '26 · 120012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit215%
Signed off431%
Other status754%
By project type
Alteration6
Most active buildings
All buildings →
414 EAST 52 STREETMANHATTAN · latest 11/16/2022
2 projects
80 WARREN STREETMANHATTAN · latest 08/07/2009
1 projects
250 WEST 27 STREETMANHATTAN · latest 07/14/2025
1 projects
431 EAST 52 STREETMANHATTAN · latest 05/10/2024
1 projects
134 EAST 71 STREETMANHATTAN · 1 open · latest 09/17/2026
1 projects
210 EAST 73 STREETMANHATTAN · latest 12/26/2012
1 projects
Key relationships
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Contractors
3 projects
1 projects
Owners
1 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01387468 ↗134 EAST 71 STREET
MANHATTAN
AlterationPermit Issued04/28/202609/17/2026
Design ADS ENGINEERS
Filer J. CALLAHAN CONSULTING, INC.
This alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. There are no change in use, eg…
M01003774 ↗250 WEST 27 STREET
MANHATTAN
AlterationSigned-off02/23/202407/14/2025
Design CHANDLER PIERCE ARCHITECT
Owner HALSTEAD MANAGEMENT
Filer CLARKE CONSTRUCTION CONSULTANTS
PLUMBING FIXTURES IN APT 4A/5A FILED IN CONJUNCTION WITH DOB NOW GC AND MH. NO CHANGE TO USE , OCCUAPCNY OR EGRES.
M01032676 ↗431 EAST 52 STREET
MANHATTAN
AlterationSigned-off04/30/202405/10/2024
Design O&S ASSOCIATES
Filing for Facade Repairs at this existing building. No change to use, occupancy, or egress.
X00737229 ↗815 HUTCHINSON RVR PKWY
BRONX
AlterationPermit Issued07/11/202212/10/2022
Design JEFFREY N. BEEDEN
Owner PARTY CITY
Filer IMA EXPEDITNG
Replacing 4 existing rooftop units in kind.
M08001507 ↗414 EAST 52 STREET
MANHATTAN
AlterationSigned-off09/26/202211/16/2022
Design CES ENGINEERING LLC
Filer CONVERSANO ASSOCIATES, INC.
Filing herewith for the modifications to existing plumbing systems
M00559143 ↗414 EAST 52 STREET
MANHATTAN
AlterationSigned-off08/26/202111/17/2021
Design ANGELA DIRKS ARCHITECT PLLC
Filer CONVERSANO ASSOCIATES, INC.
FILING HEREWITH FOR THE RENOVATION OF EXISITNG APARTMENT ON 7TH FLOOR OF MULIPLE DWELLING BUILDING
Counts cover all 13 projects (6 DOB NOW + 7 legacy BIS). Dated by first filing; BIS projects by first permit issuance.
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ANGELA DIRKS ARCHITECT PLLC208/28/2023
ADS ENGINEERS107/09/2026
ARTHUR CHABON ARCHITECT PC107/09/2026
CES ENGINEERING LLC108/28/2023
CHANDLER PIERCE ARCHITECT112/23/2024
JACK GREEN ASSOCIATES112/23/2024
JEFFREY N. BEEDEN107/11/2022
O&S ASSOCIATES104/30/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CITY/SUBURBAN PLBG CORP307/09/2026
ICE AGE MECHANICAL CORP112/23/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
HALSTEAD MANAGEMENT112/23/2024
PARTY CITY107/11/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CONVERSANO ASSOCIATES, INC.208/28/2023
CLARKE CONSTRUCTION CONSULTANTS112/23/2024
IMA EXPEDITNG107/11/2022
J. CALLAHAN CONSULTING, INC.107/09/2026
6 DOB NOW projects + 7 legacy BIS 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 13Open permit 2Signed off 4Other status 7
13 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01387468 ↗134 EAST 71 STREET
MANHATTAN
AlterationPermit Issued04/28/202609/17/2026
Design ADS ENGINEERS
Filer J. CALLAHAN CONSULTING, INC.
This alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. There are no change in use, eg…
M01003774 ↗250 WEST 27 STREET
MANHATTAN
AlterationSigned-off02/23/202407/14/2025
Design CHANDLER PIERCE ARCHITECT
Owner HALSTEAD MANAGEMENT
Filer CLARKE CONSTRUCTION CONSULTANTS
PLUMBING FIXTURES IN APT 4A/5A FILED IN CONJUNCTION WITH DOB NOW GC AND MH. NO CHANGE TO USE , OCCUAPCNY OR EGRES.
M01032676 ↗431 EAST 52 STREET
MANHATTAN
AlterationSigned-off04/30/202405/10/2024
Design O&S ASSOCIATES
Filing for Facade Repairs at this existing building. No change to use, occupancy, or egress.
X00737229 ↗815 HUTCHINSON RVR PKWY
BRONX
AlterationPermit Issued07/11/202212/10/2022
Design JEFFREY N. BEEDEN
Owner PARTY CITY
Filer IMA EXPEDITNG
Replacing 4 existing rooftop units in kind.
M08001507 ↗414 EAST 52 STREET
MANHATTAN
AlterationSigned-off09/26/202211/16/2022
Design CES ENGINEERING LLC
Filer CONVERSANO ASSOCIATES, INC.
Filing herewith for the modifications to existing plumbing systems
M00559143 ↗414 EAST 52 STREET
MANHATTAN
AlterationSigned-off08/26/202111/17/2021
Design ANGELA DIRKS ARCHITECT PLLC
Filer CONVERSANO ASSOCIATES, INC.
FILING HEREWITH FOR THE RENOVATION OF EXISITNG APARTMENT ON 7TH FLOOR OF MULIPLE DWELLING BUILDING
122277810BIS311 EAST 87 STREET
MANHATTAN
—ISSUED03/30/201507/31/2015—OT, PL
121527883BIS217 EAST 5 STREET
MANHATTAN
—ISSUED04/17/201306/12/2014—MH, OT, PL
120587846BIS210 EAST 73 STREET
MANHATTAN
—ISSUED06/01/201112/26/2012—OT
110436412BIS80 WARREN STREET
MANHATTAN
—ISSUED07/27/200908/07/2009—OT, PL
110222492BIS320 EAST 72 STREET
MANHATTAN
—ISSUED07/21/200807/21/2008—OT
201080070BIS27 SIGMA PLACE
BRONX
—ISSUED10/03/200604/07/2008—OT, PL
200651892BIS4600 PALISADE AVENUE
BRONX
—ISSUED01/16/200106/09/2004—OT, PL
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
134 EAST 71 STREET ↗209/18/2026
815 HUTCHINSON RVR PKWY ↗107/08/2026
250 WEST 27 STREET ↗107/08/2026
414 EAST 52 STREET ↗307/08/2026
431 EAST 52 STREET ↗107/08/2026
▾Documents — 171 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch18
09/03/2026M00559143-I1 · 414 EAST 52 STREETRequest digital key ↗
09/03/2026M00559143-P1 · 414 EAST 52 STREETRequest digital key ↗
09/01/2026M08001507-I1 · 414 EAST 52 STREETRequest digital key ↗
Showing 3 of 18 on file for this type
▸Applications & Permits30
▸BISWORK PERMIT APPLICATION17
08/27/2015122277810 · 311 EAST 87 STREETOpen ↗
08/27/2015122277810 · 311 EAST 87 STREETOpen ↗
04/09/2015122277810 · 311 EAST 87 STREETOpen ↗
Showing 3 of 17 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION10
05/23/2016122277810 · 311 EAST 87 STREETOpen ↗
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
07/24/2013121527883 · 217 EAST 5 STREETOpen ↗
Showing 3 of 10 on file for this type
▸DOB NOWLPC Approval/Permit3
08/17/2026M01387468-I1 · 134 EAST 71 STREETOpen ↗
08/17/2026M01387468-S2 · 134 EAST 71 STREETOpen ↗
08/15/2026M01387468-S1 · 134 EAST 71 STREETOpen ↗
▸Seals & Professional Certifications54
▸DOB NOWProgress Inspector Seal & Signature17
09/26/2026M08001507-P2 · 414 EAST 52 STREETOpen ↗
08/31/2026X00737229-I1 · 815 HUTCHINSON RVR PKWYOpen ↗
08/30/2026M01003774-I1 · 250 WEST 27 STREETOpen ↗
Showing 3 of 17 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature16
08/24/2026X00737229-I1 · 815 HUTCHINSON RVR PKWYOpen ↗
08/17/2026M01387468-S2 · 134 EAST 71 STREETOpen ↗
08/17/2026M01387468-I1 · 134 EAST 71 STREETOpen ↗
Showing 3 of 16 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature11
09/26/2026M08001507-P2 · 414 EAST 52 STREETOpen ↗
08/31/2026X00737229-I1 · 815 HUTCHINSON RVR PKWYOpen ↗
08/30/2026M01003774-I1 · 250 WEST 27 STREETOpen ↗
Showing 3 of 11 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION10
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
08/20/2014121527883 · 217 EAST 5 STREETOpen ↗
10/28/2013120587846 · 210 EAST 73 STREETOpen ↗
Showing 3 of 10 on file for this type
▸Trade Schedules & Equipment13
▸BISSELF-CERT PLUMBING NOTICE8
06/04/2015122277810 · 311 EAST 87 STREETOpen ↗
07/17/2014121527883 · 217 EAST 5 STREETOpen ↗
07/14/2014121527883 · 217 EAST 5 STREETOpen ↗
Showing 3 of 8 on file for this type
▸BISSCHEDULE B - PLUMBING4
07/24/2013121527883 · 217 EAST 5 STREETOpen ↗
11/24/2009110436412 · 80 WARREN STREETOpen ↗
01/16/2009110436412 · 80 WARREN STREETOpen ↗
Showing 3 of 4 on file for this type
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
▸Environmental & Asbestos20
▸DOB NOWDEP ACP-5: Asbestos Assessment Report14
08/24/2026X00737229-I1 · 815 HUTCHINSON RVR PKWYOpen ↗
08/17/2026M01387468-S2 · 134 EAST 71 STREETOpen ↗
08/17/2026M01387468-I1 · 134 EAST 71 STREETOpen ↗
Showing 3 of 14 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)3
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
Showing 1 of 3 on file for this type
▸BISTHIS IS NOT AN ASBESTOS PROJECT2
05/06/2011120587846 · 210 EAST 73 STREETOpen ↗
01/16/2009110436412 · 80 WARREN STREETOpen ↗
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/13/2026M00559143-I1 · 414 EAST 52 STREETOpen ↗
▸Energy Compliance7
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS5
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
04/06/2015122277810 · 311 EAST 87 STREETOpen ↗
10/28/2013120587846 · 210 EAST 73 STREETOpen ↗
Showing 3 of 5 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS1
08/20/2014121527883 · 217 EAST 5 STREETOpen ↗
▸DOB NOWEN2: As Built Energy Analysis.1
08/13/2026M00559143-I1 · 414 EAST 52 STREETOpen ↗
▸Approvals, Objections & Sign-offs10
▸BISADMINISTRATIVE OBJECTIONS3
06/26/2008110222492 · 320 EAST 72 STREETOpen ↗
Showing 1 of 3 on file for this type
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST3
08/20/2014121527883 · 217 EAST 5 STREETOpen ↗
10/28/2013120587846 · 210 EAST 73 STREETOpen ↗
05/11/2010110436412 · 80 WARREN STREETOpen ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION3
08/27/2015122277810 · 311 EAST 87 STREETOpen ↗
01/03/2013120587846 · 210 EAST 73 STREETOpen ↗
05/08/2009110436412 · 80 WARREN STREETOpen ↗
▸BISLANDMARKS APPROVAL1
08/20/2014121527883 · 217 EAST 5 STREETOpen ↗
▸Cost, Insurance & Ownership8
▸BISCOST AFFIDAVIT8
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
08/20/2014121527883 · 217 EAST 5 STREETOpen ↗
10/28/2013120587846 · 210 EAST 73 STREETOpen ↗
Showing 3 of 8 on file for this type
▸Filing & Intake Forms8
▸BISEFILING COVER SHEET5
04/10/2015122277810 · 311 EAST 87 STREETOpen ↗
Showing 1 of 5 on file for this type
▸BISADDITIONAL INFORMATION3
10/07/2013120587846 · 210 EAST 73 STREETOpen ↗
08/13/2013121527883 · 217 EAST 5 STREETOpen ↗
07/24/2013121527883 · 217 EAST 5 STREETOpen ↗
▸Other Documents3
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION3
08/27/2015122277810 · 311 EAST 87 STREETOpen ↗
05/11/2010110436412 · 80 WARREN STREETOpen ↗
Showing 2 of 3 on file for this type