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Entity
Wilson Sonsini
Tenant
1 project with open permitsMANHATTAN · 12
1 building
12
Total Filings
12
Projects on File
1
Buildings Worked
1
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month12 projects all-time
04711Nov '23 · 1Jan '25 · 10Mar '25 · 1Nov '23Jan '24Mar '24May '24Jul '24Sep '24Nov '24Jan '25Mar '25
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit18%
Signed off1192%
By project type
Alteration11
Alteration CO1
Most active buildings
All buildings →
49 WEST 52 STREETMANHATTAN · 1 open · latest 05/15/2025
12 projects
Key relationships
Everyone →
Filing representatives
6 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01168695 ↗49 WEST 52 STREET
MANHATTAN
Alteration COPermit Issued03/03/202505/15/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Filer BROOKBRIDGE CONSULTING
Installation of partitions and doors on 5th floor to introduce a new PA at terrace. Increase in occupancy load at 7th & 8th floors with no c…
M01167588 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/05/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 6th & 9th floors (WSGR) as per plans. No…
M01168234 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/05/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor TRISTATE PLBG SVCS CORP
Filer RIZZO GROUP
Modifications to the existing plumbing system on the 5th, 7th & 8th floors (WSGR) as per plans. No change to use, egress or occupancy
M01168208 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/04/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 5th, 7th & 8th floors (WSGR) as per plan…
M01167607 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/31/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor AMERICON CONSTRUCTION INC.
Filer RIZZO GROUP
Modifications to the existing HVAC system on the 6th floor (WSGR) as per plans. No change to use, egress or occupancy.
M01167643 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design OFFICE OF JAMES RUDERMAN
Contractor AMERICON CONSTRUCTION INC.
Structural modification to the 6th & 9th floor (WSGR) as per plans. No change to use, egress or occupancy.
Counts cover all 12 projects (12 DOB NOW). 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
AMA CONSULTING ENGINEERS, PC709/19/2025
HYL ARCHITECTURE403/03/2025
OFFICE OF JAMES RUDERMAN201/30/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
AMERICON CONSTRUCTION INC807/29/2025
TRISTATE PLBG SVCS CORP301/30/2025
PAR FIRE PROTECTION LLC209/19/2025
AGGRESSIVE FIRE PROT LLC111/21/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
RIZZO GROUP609/19/2025
BROOKBRIDGE CONSULTING103/03/2025
12 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 12Open permit 1Signed off 11
Any typeAlteration 11Alteration CO 1
12 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01168695 ↗49 WEST 52 STREET
MANHATTAN
Alteration COPermit Issued03/03/202505/15/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Filer BROOKBRIDGE CONSULTING
Installation of partitions and doors on 5th floor to introduce a new PA at terrace. Increase in occupancy load at 7th & 8th floors with no c…
M01167588 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/05/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 6th & 9th floors (WSGR) as per plans. No…
M01168234 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/05/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor TRISTATE PLBG SVCS CORP
Filer RIZZO GROUP
Modifications to the existing plumbing system on the 5th, 7th & 8th floors (WSGR) as per plans. No change to use, egress or occupancy
M01168208 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/04/2025
Design HYL ARCHITECTURE
Contractor AMERICON CONSTRUCTION INC.
Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 5th, 7th & 8th floors (WSGR) as per plan…
M01167607 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/31/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor AMERICON CONSTRUCTION INC.
Filer RIZZO GROUP
Modifications to the existing HVAC system on the 6th floor (WSGR) as per plans. No change to use, egress or occupancy.
M01167643 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design OFFICE OF JAMES RUDERMAN
Contractor AMERICON CONSTRUCTION INC.
Structural modification to the 6th & 9th floor (WSGR) as per plans. No change to use, egress or occupancy.
M01167660 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor TRISTATE PLBG SVCS CORP
Modifications to the existing plumbing system on the 6th floor (WSGR) as per plans. No change to use, egress or occupancy
M01168217 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/31/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor AMERICON CONSTRUCTION INC.
Filer RIZZO GROUP
Modifications to the existing HVAC system on the5th , 7th & 8th floors (WSGR) as per plans. No change to use, egress or occupancy.
M01168259 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design OFFICE OF JAMES RUDERMAN
Contractor AMERICON CONSTRUCTION INC.
Structural modification to the 5th, 7th & 8th floors (WSGR) as per plans. No change to use, egress or occupancy.
M01170538 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor LAWRENCE J. LEVINE
Filer RIZZO GROUP
Modifications to the existing sprinkler & standpipe systems on the 6th floor (WSGR) as per plans. No change to use, egress or occupancy
M01170607 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off01/30/202502/03/2025
Design AMA CONSULTING ENGINEERS, PC
Contractor LAWRENCE J. LEVINE
Filer RIZZO GROUP
Modifications to the existing sprinkler & standpipe system on the 5th, 7th & 8th floors (WSGR) as per plans. No change to use, egress or occ…
M00940966 ↗49 WEST 52 STREET
MANHATTAN
AlterationSigned-off11/21/202303/11/2024
Design AMA CONSULTING ENGINEERS, PC
Contractor AMERICON CONSTRUCTION INC.
Filer RIZZO GROUP
Modifications to the existing sprinkler and standpipe systems on the 9th floor (WSGR- Phase 1) as per plans. No change to use, egress or occ…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
49 WEST 52 STREET ↗1209/19/2025
▾Documents — 78 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch18
08/28/2026M00940966-I1 · 49 WEST 52 STREETRequest digital key ↗
08/28/2026M00940966-S2 · 49 WEST 52 STREETRequest digital key ↗
08/28/2026M00940966-S1 · 49 WEST 52 STREETRequest digital key ↗
Showing 3 of 18 on file for this type
▸Seals & Professional Certifications38
▸DOB NOWDPL-1: Design Professional Seal & Signature18
08/28/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
08/28/2026M00940966-S1 · 49 WEST 52 STREETOpen ↗
08/28/2026M00940966-S2 · 49 WEST 52 STREETOpen ↗
Showing 3 of 18 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
09/27/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
09/27/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
09/02/2026M01167607-P1 · 49 WEST 52 STREETOpen ↗
Showing 3 of 10 on file for this type
▸DOB NOWProgress Inspector Seal & Signature10
09/27/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
09/27/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
09/02/2026M01167607-P1 · 49 WEST 52 STREETOpen ↗
Showing 3 of 10 on file for this type
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026M01168695-I1 · 49 WEST 52 STREETOpen ↗
▸Environmental & Asbestos18
▸DOB NOWDEP ACP-5: Asbestos Assessment Report18
08/28/2026M00940966-I1 · 49 WEST 52 STREETOpen ↗
08/28/2026M00940966-S4 · 49 WEST 52 STREETOpen ↗
08/28/2026M00940966-S1 · 49 WEST 52 STREETOpen ↗
Showing 3 of 18 on file for this type
▸Energy Compliance3
▸DOB NOWPreliminary Commissioning Report Certification3
08/25/2026M01167607-I1 · 49 WEST 52 STREETOpen ↗
08/13/2026M01167607-I1 · 49 WEST 52 STREETOpen ↗
08/13/2026M01168217-I1 · 49 WEST 52 STREETOpen ↗