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Entity
Hellman & Friedman
Tenant · filed under 2 names
MANHATTAN · 6
1 building
6
Total Filings
6
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Projects by first filing month6 projects all-time
0246Apr '21 · 1Jun '21 · 5Apr '21May '21Jun '21
Portfolio status
Browse projects →
Signed off583%
Filed only117%
By project type
Alteration6
Most active buildings
All buildings →
425 PARK AVENUEMANHATTAN · latest 06/25/2021
6 projects
Key relationships
Everyone →
Design firms
3 projects
2 projects
1 projects
Filing representatives
6 projects
Contractors
3 projects
1 projects
1 projects
Filed under
Hellman & Friedman5Hellman1
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
M00523795 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/25/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor SIRINA FIRE PROT CORP
Filer RIZZO GROUP
Sprinkler modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chang…
M00523794 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/24/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor PACE PLUMBING CORP
Filer RIZZO GROUP
Plumbing modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No change…
M00523798 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/17/202106/24/2021
Design THORNTON TOMASETTI
Owner 425 PARK OWNER, LLC
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Structural modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
M00523788 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/23/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Mechanical modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
M00523785 ↗425 PARK AVENUE
MANHATTAN
AlterationFiled — no permit on record06/17/2021—
Design GENSLER
Owner 425 PARK OWNER, LLC
Filer RIZZO GROUP
—
M00483536 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off04/07/202104/13/2021
Design THORNTON TOMASETTI
Owner L&L HOLDING COMPANY
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Structural modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
Counts cover all 6 projects (6 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 ASSOCIATES312/23/2021
THORNTON TOMASETTI206/17/2021
GENSLER106/17/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
STRUCTURE TONE, LLC306/21/2021
PACE PLUMBING CORP106/21/2021
SIRINA FIRE PROT CORP112/23/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
425 PARK OWNER, LLC512/23/2021
L&L HOLDING COMPANY LLC104/07/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
RIZZO GROUP612/23/2021
6 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 6Signed off 5Filed only 1
6 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00523795 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/25/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor SIRINA FIRE PROT CORP
Filer RIZZO GROUP
Sprinkler modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chang…
M00523794 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/24/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor PACE PLUMBING CORP
Filer RIZZO GROUP
Plumbing modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No change…
M00523798 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/17/202106/24/2021
Design THORNTON TOMASETTI
Owner 425 PARK OWNER, LLC
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Structural modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
M00523788 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off06/21/202106/23/2021
Design COSENTINI ASSOCIATES
Owner 425 PARK OWNER, LLC
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Mechanical modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
M00523785 ↗425 PARK AVENUE
MANHATTAN
AlterationFiled — no permit on record06/17/2021—
Design GENSLER
Owner 425 PARK OWNER, LLC
Filer RIZZO GROUP
—
M00483536 ↗425 PARK AVENUE
MANHATTAN
AlterationSigned-off04/07/202104/13/2021
Design THORNTON TOMASETTI
Owner L&L HOLDING COMPANY
Contractor STRUCTURE TONE, LLC
Filer RIZZO GROUP
Structural modifications taking place on the 24th and 25th floors (30st and 31st Marketing floors) as per drawings filed herewith. No chan…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
425 PARK AVENUE ↗612/23/2021
▾Documents — 35 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
09/03/2026M00483536-I1 · 425 PARK AVENUERequest digital key ↗
09/03/2026M00523785-I1 · 425 PARK AVENUERequest digital key ↗
09/03/2026M00523798-I1 · 425 PARK AVENUERequest digital key ↗
Showing 3 of 7 on file for this type
▸Seals & Professional Certifications20
▸DOB NOWSpecial Inspector Seal & Signature9
08/29/2026M00523798-I1 · 425 PARK AVENUEOpen ↗
08/29/2026M00523798-I1 · 425 PARK AVENUEOpen ↗
08/27/2026M00523795-P1 · 425 PARK AVENUEOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature7
09/03/2026M00523788-I1 · 425 PARK AVENUEOpen ↗
08/13/2026M00523795-I1 · 425 PARK AVENUEOpen ↗
08/13/2026M00523794-I1 · 425 PARK AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
08/29/2026M00523798-I1 · 425 PARK AVENUEOpen ↗
08/26/2026M00523788-I1 · 425 PARK AVENUEOpen ↗
08/26/2026M00523788-I1 · 425 PARK AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos7
▸DOB NOWDEP ACP-5: Asbestos Assessment Report7
09/03/2026M00523788-I1 · 425 PARK AVENUEOpen ↗
08/13/2026M00523794-I1 · 425 PARK AVENUEOpen ↗
08/13/2026M00483536-I1 · 425 PARK AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
09/03/2026M00523788-I1 · 425 PARK AVENUEOpen ↗