← Back
Design Firm
LIRONG TAN ARCHITECT
Design
1 project with open permitsMANHATTAN · 3
Claim this page
3 buildings
4
Total Filings
3
Projects on File
3
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month2 projects all-time
0112Jul '25 · 1Jul '26 · 1Jul '25Sep '25Nov '25Jan '26Mar '26May '26Jul '26
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit133%
Filed only267%
By project type
Alteration2
ALT-CO - New Building with Existing Elements to Remain1
Most active buildings
All buildings →
243 5 AVENUEMANHATTAN · 1 open · latest 09/15/2026
1 projects
41 WEST 96 STREETMANHATTAN · latest 07/18/2025
1 projects
1 projects
Key relationships
Everyone →
Contractors
1 projects
Owners
1 projects
1 projects
People
All people →
Lirong Tanlatest 06/30/2026
3 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01424672 ↗243 5 AVENUE
MANHATTAN
AlterationPermit Issued07/10/202609/15/2026
Owner THE MOINIAN GROUP
Contractor DIMAR SERVICES CORP
INTERIOR DEMOLITION OF EXISTING OFFICE SPACE ON 24TH FLOOR. REMOVE NON-STRUCTURAL PARTITIONS, CEILINGS, FLOOR FINISHES, MILLWORK AND ASSOCIA…
M01169019 ↗41 WEST 96 STREET
MANHATTAN
AlterationFiled — no permit on record07/18/2025—
Owner Lirong Tan Architect
—
M011256291260 AVENUE OF THE AMER
MANHATTAN
ALT-CO - New Building with Existing Elements to RemainFiled — no permit on record——
Owner TISHMAN SPEYER
—
Counts cover all 3 projects (3 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
Lirong Tan306/30/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DIMAR SERVICES CORP107/10/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
THE MOINIAN GROUP107/10/2026
TISHMAN SPEYER1—
3 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 3Open permit 1Filed only 2
Any typeAlteration 2ALT-CO - New Building with Existing Elements to Remain 1
3 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01424672 ↗243 5 AVENUE
MANHATTAN
AlterationPermit Issued07/10/202609/15/2026
Owner THE MOINIAN GROUP
Contractor DIMAR SERVICES CORP
INTERIOR DEMOLITION OF EXISTING OFFICE SPACE ON 24TH FLOOR. REMOVE NON-STRUCTURAL PARTITIONS, CEILINGS, FLOOR FINISHES, MILLWORK AND ASSOCIA…
M01169019 ↗41 WEST 96 STREET
MANHATTAN
AlterationFiled — no permit on record07/18/2025—
Owner Lirong Tan Architect
—
M011256291260 AVENUE OF THE AMER
MANHATTAN
ALT-CO - New Building with Existing Elements to RemainFiled — no permit on record——
Owner TISHMAN SPEYER
—
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
243 5 AVENUE ↗106/30/2026
41 WEST 96 STREET ↗201/18/2025
1260 AVENUE OF THE AMER ↗110/10/2024
▾Documents — 11 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/21/2026M01169019-P1 · 41 WEST 96 STREETRequest digital key ↗
08/21/2026M01169019-I1 · 41 WEST 96 STREETRequest digital key ↗
08/16/2026M01424672-I1 · 243 5 AVENUERequest digital key ↗
Showing 3 of 4 on file for this type
▸Applications & Permits1
▸DOB NOWLPC Approval/Permit1
08/16/2026M01424672-I1 · 243 5 AVENUEOpen ↗
▸Seals & Professional Certifications3
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/21/2026M01169019-P1 · 41 WEST 96 STREETOpen ↗
08/21/2026M01169019-I1 · 41 WEST 96 STREETOpen ↗
08/16/2026M01424672-I1 · 243 5 AVENUEOpen ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/21/2026M01169019-I1 · 41 WEST 96 STREETOpen ↗
08/21/2026M01169019-P1 · 41 WEST 96 STREETOpen ↗
08/16/2026M01424672-I1 · 243 5 AVENUEOpen ↗