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Design Firm
TIMOTHY LANGAN ARCHITECT
Design
2 projects with open permitsMANHATTAN · 5
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5 buildings
15
Total Filings
5
Projects on File
5
Buildings Worked
2
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month5 projects all-time
0112Jan '21 · 1Aug '23 · 1Jan '25 · 1Jul '25 · 1Feb '26 · 1202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit240%
Signed off360%
By project type
Alteration5
Most active buildings
All buildings →
830 PARK AVENUEMANHATTAN · latest 05/02/2024
1 projects
150 EAST 69TH STREETMANHATTAN · 1 open · latest 07/01/2026
1 projects
815 PARK AVENUEMANHATTAN · latest 03/10/2022
1 projects
315 EAST 70 STREETMANHATTAN · latest 03/20/2025
1 projects
33 EAST END AVENUEMANHATTAN · 1 open · latest 09/03/2026
1 projects
Key relationships
Everyone →
Filing representatives
4 projects
1 projects
Owners
1 projects
1 projects
People
All people →
Timothy Langanlatest 02/02/2026
12 filings
Filed under
TIMOTHY LANGAN ARCHITECT15
Identified by the contact ids of the people who file for the firm and by its email domain (langanarchitecture.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01235289 ↗33 EAST END AVENUE
MANHATTAN
AlterationPermit Issued07/08/202509/03/2026
Contractor FERNANDO CONSTRUCTION COR
Filer ADAM MAISER
Plumbing work as per submitted plans. No change of use, occupancy, egress or zoning.
M01354512 ↗150 EAST 69TH STREET
MANHATTAN
AlterationPermit Issued02/12/202607/01/2026
Owner 69th Tenants Corp.
Contractor GREAT BAY CONTRACTING INC
Filer ADAM MAISER
NEW PLUMBING WORK AS INDICATED ON DRAWINGS. NO CHANGE OF USE, OCCUPANCY, EGRESS OR ZONING THIS APPLICATION.
M01145646 ↗315 EAST 70 STREET
MANHATTAN
AlterationSigned-off01/21/202503/20/2025
Contractor LS PLUMBING CORP
Filer ADAM MAISER
Plumbing work in connection with the renovation of the existing residential unit #11P as per submitted plans.
M00910711 ↗830 PARK AVENUE
MANHATTAN
AlterationSigned-off08/24/202305/02/2024
Owner GUMLEY HAFT
Contractor NORWOOD DESIGN& BUILD INC
Filer ADAM MAISER
Plumbing work associated with interior renovation. No change of use, occupancy, or egress this application.
M00454605 ↗815 PARK AVENUE
MANHATTAN
AlterationSigned-off01/20/202103/10/2022
Contractor INS DYNAMICS INC
Filer KMP DESIGN & ENGINEERING PLLC
RENOVATE EXISTING APARTMENT 6C BY RELOCATING KITCHEN AND BATHROOMS WITH NEW FLOORING AND NEW WALL PARTITIONS AS PER PLANS. NO CHANGE IN OCCU…
Counts cover all 5 projects (5 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
Timothy Langan1202/02/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
INS DYNAMICS INC201/20/2026
21 PLUMBING & HEATING INC107/08/2025
ALAFOGIANNIS PLBG & HTG102/12/2026
FERNANDO CONSTRUCTION COR107/08/2025
GREAT BAY CONTRACTING INC102/12/2026
M. SPINELLI PLB & HTG INC104/02/2025
NORWOOD DESIGN& BUILD INC104/02/2025
RITE WAY HEATING CORP101/20/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
69th Tenants Corp.102/12/2026
GUMLEY HAFT104/02/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ADAM MAISER402/12/2026
KMP DESIGN & ENGINEERING PLLC101/20/2021
5 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 5Open permit 2Signed off 3
5 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01235289 ↗33 EAST END AVENUE
MANHATTAN
AlterationPermit Issued07/08/202509/03/2026
Contractor FERNANDO CONSTRUCTION COR
Filer ADAM MAISER
Plumbing work as per submitted plans. No change of use, occupancy, egress or zoning.
M01354512 ↗150 EAST 69TH STREET
MANHATTAN
AlterationPermit Issued02/12/202607/01/2026
Owner 69th Tenants Corp.
Contractor GREAT BAY CONTRACTING INC
Filer ADAM MAISER
NEW PLUMBING WORK AS INDICATED ON DRAWINGS. NO CHANGE OF USE, OCCUPANCY, EGRESS OR ZONING THIS APPLICATION.
M01145646 ↗315 EAST 70 STREET
MANHATTAN
AlterationSigned-off01/21/202503/20/2025
Contractor LS PLUMBING CORP
Filer ADAM MAISER
Plumbing work in connection with the renovation of the existing residential unit #11P as per submitted plans.
M00910711 ↗830 PARK AVENUE
MANHATTAN
AlterationSigned-off08/24/202305/02/2024
Owner GUMLEY HAFT
Contractor NORWOOD DESIGN& BUILD INC
Filer ADAM MAISER
Plumbing work associated with interior renovation. No change of use, occupancy, or egress this application.
M00454605 ↗815 PARK AVENUE
MANHATTAN
AlterationSigned-off01/20/202103/10/2022
Contractor INS DYNAMICS INC
Filer KMP DESIGN & ENGINEERING PLLC
RENOVATE EXISTING APARTMENT 6C BY RELOCATING KITCHEN AND BATHROOMS WITH NEW FLOORING AND NEW WALL PARTITIONS AS PER PLANS. NO CHANGE IN OCCU…
Scope of Work
Plumbing — 1 project · most recent 07/08/2025
Gas Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
150 EAST 69TH STREET ↗302/02/2026
315 EAST 70 STREET ↗412/15/2025
33 EAST END AVENUE ↗306/03/2025
830 PARK AVENUE ↗403/12/2025
815 PARK AVENUE ↗101/14/2021
▾Documents — 62 on file (BIS + DOB NOW)
▸Plans & Drawings13
▸DOB NOWPlans/Sketch12
08/24/2026M00910711-I1 · 830 PARK AVENUERequest digital key ↗
08/24/2026M00910711-S1 · 830 PARK AVENUERequest digital key ↗
08/24/2026M00910711-P1 · 830 PARK AVENUERequest digital key ↗
Showing 3 of 12 on file for this type
▸DOB NOWPlans/Sketch - General Construction1
08/15/2026M00454605-I1 · 815 PARK AVENUERequest digital key ↗
▸Applications & Permits5
▸DOB NOWLPC Approval/Permit5
08/24/2026M00910711-S1 · 830 PARK AVENUEOpen ↗
08/15/2026M00454605-I1 · 815 PARK AVENUEOpen ↗
08/13/2026M00910711-P1 · 830 PARK AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸Seals & Professional Certifications29
▸DOB NOWDPL-1: Design Professional Seal & Signature13
09/04/2026M00454605-I1 · 815 PARK AVENUEOpen ↗
08/24/2026M00910711-S1 · 830 PARK AVENUEOpen ↗
08/23/2026M01235289-I1 · 33 EAST END AVENUEOpen ↗
Showing 3 of 13 on file for this type
▸DOB NOWProgress Inspector Seal & Signature10
08/30/2026M01145646-I1 · 315 EAST 70 STREETOpen ↗
08/30/2026M01145646-I1 · 315 EAST 70 STREETOpen ↗
08/29/2026M00910711-S2 · 830 PARK AVENUEOpen ↗
Showing 3 of 10 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
08/30/2026M01145646-I1 · 315 EAST 70 STREETOpen ↗
08/29/2026M00910711-S2 · 830 PARK AVENUEOpen ↗
08/27/2026M00910711-I1 · 830 PARK AVENUEOpen ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos13
▸DOB NOWDEP ACP-5: Asbestos Assessment Report13
08/24/2026M00910711-S1 · 830 PARK AVENUEOpen ↗
08/23/2026M01235289-S1 · 33 EAST END AVENUEOpen ↗
08/23/2026M01235289-I1 · 33 EAST END AVENUEOpen ↗
Showing 3 of 13 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
08/15/2026M00454605-I1 · 815 PARK AVENUEOpen ↗
▸Other Documents1
▸DOB NOWProof of Historic Building1
08/13/2026M00910711-I1 · 830 PARK AVENUEOpen ↗