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Entity
Stone Ridge
Tenant
MANHATTAN · 5
1 building
5
Total Filings
5
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month5 projects all-time
0134Sep '21 · 3Oct '21 · 1May '23 · 1Sep '21Dec '21Mar '22Jun '22Sep '22Dec '22Mar '23May '23
bars = month · line = 3-mo average
Portfolio status
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Signed off5100%
By project type
Alteration5
Most active buildings
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51 EAST 42 STREETMANHATTAN · latest 05/24/2023
5 projects
Key relationships
Everyone →
Design firms
2 projects
2 projects
1 projects
Filing representatives
5 projects
Contractors
4 projects
1 projects
Owners
5 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00860956 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off05/02/202305/24/2023
Design GENSLER
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Removal & instillation of interior non load bearing partitions and related finishes.
M00578772 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/29/202111/11/2022
Design COSENTINI ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor SIRINA FIRE PROT CORP
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing Sprinkler systems. No change in use, egress or occupancy.
M00571503 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off10/04/202110/28/2021
Design SEVERUD ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Slab openings, new stairs, beam reinforcement 554 linear feet of steel. No change in use, egress or occupancy.
M00570855 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/30/202110/25/2021
Design GENSLER
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Business use workplace across 4 floors. No change in use, egress or occupancy.
M00578608 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/29/202110/05/2021
Design COSENTINI ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing mechanical systems. No change in use, egress or occupancy.
Counts cover all 5 projects (5 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
COSENTINI ASSOCIATES207/07/2022
GENSLER205/02/2023
SEVERUD ASSOCIATES107/05/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JT MAGEN & COMPANY INC405/02/2023
SIRINA FIRE PROT CORP107/07/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SL GREEN REALTY CORP505/02/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
A1 EXPEDITING SERVICE CORP.505/02/2023
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 5Signed off 5
5 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00860956 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off05/02/202305/24/2023
Design GENSLER
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Removal & instillation of interior non load bearing partitions and related finishes.
M00578772 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/29/202111/11/2022
Design COSENTINI ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor SIRINA FIRE PROT CORP
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing Sprinkler systems. No change in use, egress or occupancy.
M00571503 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off10/04/202110/28/2021
Design SEVERUD ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Slab openings, new stairs, beam reinforcement 554 linear feet of steel. No change in use, egress or occupancy.
M00570855 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/30/202110/25/2021
Design GENSLER
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Business use workplace across 4 floors. No change in use, egress or occupancy.
M00578608 ↗51 EAST 42 STREET
MANHATTAN
AlterationSigned-off09/29/202110/05/2021
Design COSENTINI ASSOCIATES
Owner SL GREEN REALTY CORP.
Contractor JT MAGEN & COMPANY INC
Filer A1 EXPEDITING SERVICE CORP.
Modifications to existing mechanical systems. No change in use, egress or occupancy.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
51 EAST 42 STREET ↗505/02/2023
▾Documents — 74 on file (BIS + DOB NOW)
▸Plans & Drawings12
▸DOB NOWPlans/Sketch12
09/03/2026M00578608-P1 · 51 EAST 42 STREETRequest digital key ↗
09/03/2026M00578608-I1 · 51 EAST 42 STREETRequest digital key ↗
09/03/2026M00578772-P1 · 51 EAST 42 STREETRequest digital key ↗
Showing 3 of 12 on file for this type
▸Seals & Professional Certifications47
▸DOB NOWSpecial Inspector Seal & Signature21
09/23/2026M00578772-I1 · 51 EAST 42 STREETOpen ↗
09/23/2026M00578772-I1 · 51 EAST 42 STREETOpen ↗
09/23/2026M00578772-I1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 21 on file for this type
▸DOB NOWProgress Inspector Seal & Signature14
08/27/2026M00570855-P1 · 51 EAST 42 STREETOpen ↗
08/27/2026M00571503-P1 · 51 EAST 42 STREETOpen ↗
08/25/2026M00578608-P1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 14 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature12
09/03/2026M00578608-P1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00578608-I1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00578772-P1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 12 on file for this type
▸Environmental & Asbestos14
▸DOB NOWOER: Notice to Proceed10
09/03/2026M00578608-P1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00571503-I1 · 51 EAST 42 STREETOpen ↗
09/03/2026M00571503-P1 · 51 EAST 42 STREETOpen ↗
Showing 3 of 10 on file for this type
▸DOB NOWOER: Notice of Satisfaction4
09/02/2026M00570855-I1 · 51 EAST 42 STREETOpen ↗
08/13/2026M00860956-I1 · 51 EAST 42 STREETOpen ↗
Showing 2 of 4 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type