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Tenant
Egon Zehnder
Tenant
MANHATTAN · 4
1 building
4
Total Filings
4
Projects on File
1
Buildings Worked
0
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Not enough dated projects to chart.
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Signed off4100%
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Alteration4
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520 MADISON AVENUEMANHATTAN · latest 12/02/2019
4 projects
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ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00240078 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201912/02/2019Modifications to the existing Sprinkler System: Install one hundred and fifty three (153) new sprinkler heads on the 22nd Fl and one hundred…
M00240040 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/14/2019Install new fixtures: (2) DF, (2) HWH, (9) WC, (9) Lav (2) Urinals, (2) Sinks on the 22nd Floor and (4) Chillers w/ Ice Makers, (2) DW, (1) …
M00240018 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/12/2019Modifications to the existing HVAC system as per plans (Tenant Work - Egon Zehnder.) No change to use, egress or occupancy.
M00240091 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/12/2019Structural Modifications, Installation of Structural Steel and Floor framing as per plans (Tenant Work - Egon Zehnder.) No change to 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
Robert Derector Associates311/04/2019
Active Design Group Engineering111/04/2019
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Structure Tone211/04/2019
Par Plumbing Co111/04/2019
Preferred Sprinkler and Mechanical111/04/2019
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Tishman Speyer Properties411/04/2019
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
M00240078 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201912/02/2019Modifications to the existing Sprinkler System: Install one hundred and fifty three (153) new sprinkler heads on the 22nd Fl and one hundred…
M00240040 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/14/2019Install new fixtures: (2) DF, (2) HWH, (9) WC, (9) Lav (2) Urinals, (2) Sinks on the 22nd Floor and (4) Chillers w/ Ice Makers, (2) DW, (1) …
M00240018 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/12/2019Modifications to the existing HVAC system as per plans (Tenant Work - Egon Zehnder.) No change to use, egress or occupancy.
M00240091 ↗520 MADISON AVENUE
MANHATTAN
AlterationSigned-off11/04/201911/12/2019Structural Modifications, Installation of Structural Steel and Floor framing as per plans (Tenant Work - Egon Zehnder.) No change to use, eg…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
520 MADISON AVENUE ↗411/04/2019
▾Documents — 24 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch - Mechanical Systems1
▸DOB NOWPlans/Sketch - Sprinkler1
▸DOB NOWPlans/Sketch - Plumbing1
▸DOB NOWPlans/Sketch - Structural1
▸Seals & Professional Certifications16
▸DOB NOWProgress Inspector Seal & Signature7
08/24/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
08/22/2026M00240018-I1 · 520 MADISON AVENUEOpen ↗
08/22/2026M00240018-I1 · 520 MADISON AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
08/24/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
08/24/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
08/24/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
09/05/2026M00240040-I1 · 520 MADISON AVENUEOpen ↗
09/05/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
08/13/2026M00240078-I1 · 520 MADISON AVENUEOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/05/2026M00240040-I1 · 520 MADISON AVENUEOpen ↗
09/05/2026M00240091-I1 · 520 MADISON AVENUEOpen ↗
08/13/2026M00240078-I1 · 520 MADISON AVENUEOpen ↗
Showing 3 of 4 on file for this type