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Design Firm
WT GROUP
Design
MANHATTAN · 3STATEN ISLAND · 1
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3 buildings
6
Total Filings
4
Projects on File
3
Buildings Worked
0
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month4 projects all-time
0123Jun '23 · 1Jul '25 · 1Nov '25 · 2Jun '23Sep '23Dec '23Mar '24Jun '24Sep '24Dec '24Mar '25Jun '25Sep '25Nov '25
bars = month · line = 3-mo average
Portfolio status
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Signed off4100%
By project type
Alteration4
Most active buildings
All buildings →
1260 AVENUE OF THE AMERMANHATTAN · latest 11/24/2025
2 projects
157 EAST 86 STREETMANHATTAN · latest 08/18/2025
1 projects
2101 RICHMOND TERRACESTATEN ISLAND · latest 12/14/2023
1 projects
Key relationships
Everyone →
Design firms
1 projects
Filing representatives
2 projects
1 projects
1 projects
People
All people →
MARK VENTRELLIlatest 09/22/2025
5 filings
Filed under
WT GROUP6
Identified by the contact ids of the people who file for the firm and by its email domain (wtgroup.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01290990 ↗1260 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/13/202511/24/2025
Owner TISHMAN SPEYER
Contractor A&A PLUMBING CORP
Filer WALTER T. GORMAN, PE, PC
Alterations to plumbing system as per plans. No change to use. egress or occupancy.
M01290969 ↗1260 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/13/202511/19/2025
Owner TISHMAN SPEYER
Contractor SCHIMENTI CONSTRUCTION CO
Filer WALTER T. GORMAN, PE, PC
Mechanical work as per plans. No change to use, egress or occupancy.
M01217147 ↗157 EAST 86 STREET
MANHATTAN
AlterationSigned-off07/31/202508/18/2025
Owner WT Group
Contractor WINDECKER CONSTRUCTION LL
Filer BURNHAM NATIONWIDE INC
Renovation of existing bathroom as per plans filed herewith.
S00862959 ↗2101 RICHMOND TERRACE
STATEN ISLAND
AlterationSigned-off06/26/202312/14/2023
Owner HUDSON RIVER CONTRACTING CORP
Contractor VOLTAIR SOLAR LLC
Filer S&M EXPEDITING
Installation of rooftop solar system as shown on submitted plans. No change in occupancy, use or egress.
Counts cover all 4 projects (4 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
MARK VENTRELLI509/22/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Ryan R. Triphahn Design, PLLC107/31/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
A&A PLUMBING CORP103/10/2026
EXPRESS PL SWR & WTR A107/31/2025
SCHIMENTI CONSTRUCTION CO111/13/2025
VOLTAIR SOLAR LLC106/26/2023
WINDECKER CONSTRUCTION LL107/31/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
TISHMAN SPEYER203/10/2026
HUDSON RIVER CONTRACTING CORP106/26/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
WALTER T. GORMAN, PE, PC203/10/2026
BURNHAM NATIONWIDE INC107/31/2025
S&M EXPEDITING106/26/2023
4 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 4Signed off 4
4 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01290990 ↗1260 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/13/202511/24/2025
Owner TISHMAN SPEYER
Contractor A&A PLUMBING CORP
Filer WALTER T. GORMAN, PE, PC
Alterations to plumbing system as per plans. No change to use. egress or occupancy.
M01290969 ↗1260 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off11/13/202511/19/2025
Owner TISHMAN SPEYER
Contractor SCHIMENTI CONSTRUCTION CO
Filer WALTER T. GORMAN, PE, PC
Mechanical work as per plans. No change to use, egress or occupancy.
M01217147 ↗157 EAST 86 STREET
MANHATTAN
AlterationSigned-off07/31/202508/18/2025
Owner WT Group
Contractor WINDECKER CONSTRUCTION LL
Filer BURNHAM NATIONWIDE INC
Renovation of existing bathroom as per plans filed herewith.
S00862959 ↗2101 RICHMOND TERRACE
STATEN ISLAND
AlterationSigned-off06/26/202312/14/2023
Owner HUDSON RIVER CONTRACTING CORP
Contractor VOLTAIR SOLAR LLC
Filer S&M EXPEDITING
Installation of rooftop solar system as shown on submitted plans. No change in occupancy, use or egress.
Scope of Work
HVAC — 1 project · most recent 11/13/2025
Heating and Air Conditioning Systems
Plumbing — 1 project · most recent 03/10/2026
Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
1260 AVENUE OF THE AMER ↗309/22/2025
157 EAST 86 STREET ↗204/28/2025
2101 RICHMOND TERRACE ↗104/20/2023
▾Documents — 35 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
08/23/2026S00862959-I1 · 2101 RICHMOND TERRACERequest digital key ↗
08/22/2026M01217147-S3 · 157 EAST 86 STREETRequest digital key ↗
08/22/2026M01217147-S1 · 157 EAST 86 STREETRequest digital key ↗
Showing 3 of 7 on file for this type
▸Applications & Permits3
▸DOB NOWLPC Approval/Permit3
08/13/2026M01290990-I1 · 1260 AVENUE OF THE AMEROpen ↗
08/13/2026M01290990-P1 · 1260 AVENUE OF THE AMEROpen ↗
08/13/2026M01290969-I1 · 1260 AVENUE OF THE AMEROpen ↗
▸Seals & Professional Certifications16
▸DOB NOWDPL-1: Design Professional Seal & Signature7
08/23/2026S00862959-I1 · 2101 RICHMOND TERRACEOpen ↗
08/22/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
08/22/2026M01217147-I1 · 157 EAST 86 STREETOpen ↗
Showing 3 of 7 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
09/23/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
09/23/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
09/23/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
Showing 3 of 5 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/23/2026M01290969-I1 · 1260 AVENUE OF THE AMEROpen ↗
09/23/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
09/02/2026M01217147-I1 · 157 EAST 86 STREETOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/22/2026M01217147-S1 · 157 EAST 86 STREETOpen ↗
08/22/2026M01217147-S3 · 157 EAST 86 STREETOpen ↗
08/22/2026M01217147-I1 · 157 EAST 86 STREETOpen ↗
Showing 3 of 6 on file for this type
▸Other Documents3
▸DOB NOWProof of Historic Building3
08/13/2026M01290990-P1 · 1260 AVENUE OF THE AMEROpen ↗
08/13/2026M01290990-I1 · 1260 AVENUE OF THE AMEROpen ↗
08/13/2026M01290969-I1 · 1260 AVENUE OF THE AMEROpen ↗