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Entity
Carbon
Tenant · filed under 2 names
MANHATTAN · 4
1 building
4
Total Filings
4
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month4 projects all-time
0134Apr '21 · 3Aug '21 · 1Apr '21May '21Jun '21Jul '21Aug '21
Portfolio status
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Signed off4100%
By project type
Alteration4
Most active buildings
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51 EAST 42 STREETMANHATTAN · latest 10/04/2021
4 projects
Key relationships
Everyone →
Filing representatives
4 projects
Owners
4 projects
Filed under
Carbon2Carbon Lounge2
Identified by the contact ids of the people who file for the firm and by its email domain, not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00553188 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off08/20/202110/04/2021
Design AMA CONSULTING ENGINEERS, PC
Owner SL GREEN REALTY CORP.
Contractor SIRINA FIRE PROT CORP
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing sprinklers and plumbing systems. No change in use, egress or occupancy.
M00497030 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/15/202104/22/2021
Design METHOD ARCHITECTS PLLC
Owner SL GREEN REALTY CORP.
Contractor REIDY CONTRACTING GROUP
Filer A1 EXPEDITING SERVICE CORP.
Early Works Infrastructure. No change in use, egress or occupancy under this application.
M00497102 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/20/202104/22/2021
Design SEVERUD ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor REIDY CONTRACTING GROUP
Filer A1 EXPEDITING SERVICE CORP.
Structural Reinforcing, 570 lf. No change in use, egress or occupancy under this application
M00497063 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/15/202104/19/2021
Design AMA CONSULTING ENGINEERS, PC
Owner SL GREEN REALTY CORP.
Contractor CONNELLY & SONS PLUMBING
Filer A1 EXPEDITING SERVICE CORP.
Early work sanitary, vent & domestic water piping installation at ceiling of 54th floor for new fixtures on 55th floor. No change in use, eg…
Counts cover all 4 projects (4 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, PC206/10/2022
METHOD ARCHITECTS PLLC105/11/2022
SEVERUD ASSOCIATES102/04/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CONNELLY & SONS PLUMBING206/10/2022
REIDY CONTRACTING GROUP205/11/2022
SIRINA FIRE PROT CORP106/10/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SL GREEN REALTY CORP406/10/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
A1 EXPEDITING SERVICE CORP.406/10/2022
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
M00553188 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off08/20/202110/04/2021
Design AMA CONSULTING ENGINEERS, PC
Owner SL GREEN REALTY CORP.
Contractor SIRINA FIRE PROT CORP
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing sprinklers and plumbing systems. No change in use, egress or occupancy.
M00497030 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/15/202104/22/2021
Design METHOD ARCHITECTS PLLC
Owner SL GREEN REALTY CORP.
Contractor REIDY CONTRACTING GROUP
Filer A1 EXPEDITING SERVICE CORP.
Early Works Infrastructure. No change in use, egress or occupancy under this application.
M00497102 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/20/202104/22/2021
Design SEVERUD ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor REIDY CONTRACTING GROUP
Filer A1 EXPEDITING SERVICE CORP.
Structural Reinforcing, 570 lf. No change in use, egress or occupancy under this application
M00497063 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off04/15/202104/19/2021
Design AMA CONSULTING ENGINEERS, PC
Owner SL GREEN REALTY CORP.
Contractor CONNELLY & SONS PLUMBING
Filer A1 EXPEDITING SERVICE CORP.
Early work sanitary, vent & domestic water piping installation at ceiling of 54th floor for new fixtures on 55th floor. No change in use, eg…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
51 EAST 42 STREET ↗406/10/2022
▾Documents — 76 on file (BIS + DOB NOW)
▸Plans & Drawings12
▸DOB NOWPlans/Sketch12
09/03/2026M00553188-P2 · 51 EAST 42 STREETRequest digital key ↗
09/03/2026M00553188-I1 · 51 EAST 42 STREETRequest digital key ↗
09/03/2026M00553188-P1 · 51 EAST 42 STREETRequest digital key ↗
Showing 3 of 12 on file for this type
▸Seals & Professional Certifications47
▸DOB NOWSpecial Inspector Seal & Signature20
09/01/2026M00497102-I1 · 51 EAST 42 STREETOpen ↗
09/01/2026M00553188-P2 · 51 EAST 42 STREETOpen ↗
09/01/2026M00553188-P2 · 51 EAST 42 STREETOpen ↗
Showing 3 of 20 on file for this type
▸DOB NOWProgress Inspector Seal & Signature15
09/01/2026M00497030-I1 · 51 EAST 42 STREETOpen ↗
09/01/2026M00497030-I1 · 51 EAST 42 STREETOpen ↗
09/01/2026M00497030-I1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 15 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature12
09/03/2026M00553188-P1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00553188-P2 · 51 EAST 42 STREETOpen ↗
09/03/2026M00553188-I1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 12 on file for this type
▸Environmental & Asbestos16
▸DOB NOWOER: Notice to Proceed12
09/03/2026M00553188-P2 · 51 EAST 42 STREETOpen ↗
09/03/2026M00553188-I1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00553188-P1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 12 on file for this type
▸DOB NOWOER: Notice of Satisfaction4
09/03/2026M00553188-I1 · 51 EAST 42 STREETOpen ↗
09/02/2026M00497102-I1 · 51 EAST 42 STREETOpen ↗
09/02/2026M00497030-I1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 4 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
09/02/2026M00497030-I1 · 51 EAST 42 STREETOpen ↗