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Entity
Royalton Park Avenue Hotel
Tenant
5 projects with open permitsMANHATTAN · 6
1 building
6
Total Filings
6
Projects on File
1
Buildings Worked
5
Projects w/ Open Permits
Tenant
Primary Trade
Activity
Not enough dated projects to chart.
Portfolio status
Browse projects →
Open permit583%
Filed only117%
By project type
Alteration6
Most active buildings
All buildings →
420 PARK AVENUE SOUTHMANHATTAN · 5 open · latest 09/29/2026
6 projects
Key relationships
Everyone →
Filing representatives
3 projects
Contractors
3 projects
2 projects
2 projects
1 projects
Owners
3 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01346961 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/12/202609/29/2026
Design OTJ ARCHITECTS
Owner HIGHGATE HOTELS LP
Contractor L&K PARTNERS, INC
Filer JAM CONSULTANTS, INC.
Roof Elevator Extension
M01347016 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/12/202605/28/2026
Design OTJ ARCHITECTS
Owner HIGHGATE HOTELS LP
Contractor L&K PARTNERS, INC
Filer JAM CONSULTANTS, INC.
Plumbing modifications related to Hotel Lobby Renovations per plans filed.
M01347046 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/13/2026
Design LORING CONSULTING ENGINEERS, INC.
Contractor KG SPRINKLER CORP
Sprinkler Systems modification related to Hotel Lobby Renovation per plans filed herewith. No change in occupancy, use or egress.
M01347052 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/05/2026
Design LORING CONSULTING ENGINEERS, INC.
Owner HIGHGATE HOTELS LP
Contractor MTC CONSTRUCTION LLC
Filer JAM CONSULTANTS, INC.
Structural reinforcements related to restaurant renovation, Support for (1) folding partition, removal of existing canopy.
M01347067 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/05/2026
Design LORING CONSULTING ENGINEERS, INC.
Contractor KG SPRINKLER CORP
Sprinkler modifications related to Restaurant Renovation.
M01346773 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationFiled — no permit on record02/19/2026—
Design LORING CONSULTING ENGINEERS, INC.
—
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
LORING CONSULTING ENGINEERS, INC.610/01/2026
OTJ ARCHITECTS310/01/2026
GILSANZ MURRAY STEFICEK LLP210/01/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DONATO PLUMBING, INC310/01/2026
KG SPRINKLER CORP202/19/2026
L&K PARTNERS, INC210/01/2026
MTC CONSTRUCTION LLC107/28/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
HIGHGATE HOTELS LP310/01/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JAM CONSULTANTS, INC.310/01/2026
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 6Open permit 5Filed only 1
6 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01346961 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/12/202609/29/2026
Design OTJ ARCHITECTS
Owner HIGHGATE HOTELS LP
Contractor L&K PARTNERS, INC
Filer JAM CONSULTANTS, INC.
Roof Elevator Extension
M01347016 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/12/202605/28/2026
Design OTJ ARCHITECTS
Owner HIGHGATE HOTELS LP
Contractor L&K PARTNERS, INC
Filer JAM CONSULTANTS, INC.
Plumbing modifications related to Hotel Lobby Renovations per plans filed.
M01347046 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/13/2026
Design LORING CONSULTING ENGINEERS, INC.
Contractor KG SPRINKLER CORP
Sprinkler Systems modification related to Hotel Lobby Renovation per plans filed herewith. No change in occupancy, use or egress.
M01347052 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/05/2026
Design LORING CONSULTING ENGINEERS, INC.
Owner HIGHGATE HOTELS LP
Contractor MTC CONSTRUCTION LLC
Filer JAM CONSULTANTS, INC.
Structural reinforcements related to restaurant renovation, Support for (1) folding partition, removal of existing canopy.
M01347067 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationPermit Issued02/19/202605/05/2026
Design LORING CONSULTING ENGINEERS, INC.
Contractor KG SPRINKLER CORP
Sprinkler modifications related to Restaurant Renovation.
M01346773 ↗420 PARK AVENUE SOUTH
MANHATTAN
AlterationFiled — no permit on record02/19/2026—
Design LORING CONSULTING ENGINEERS, INC.
—
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
420 PARK AVENUE SOUTH ↗610/01/2026
▾Documents — 46 on file (BIS + DOB NOW)
▸Plans & Drawings11
▸DOB NOWPlans/Sketch11
08/19/2026M01347016-S2 · 420 PARK AVENUE SOUTHRequest digital key ↗
08/19/2026M01347016-S1 · 420 PARK AVENUE SOUTHRequest digital key ↗
08/19/2026M01347016-I1 · 420 PARK AVENUE SOUTHRequest digital key ↗
Showing 3 of 11 on file for this type
▸Seals & Professional Certifications35
▸DOB NOWDPL-1: Design Professional Seal & Signature13
10/01/2026M01346961-S4 · 420 PARK AVENUE SOUTHOpen ↗
10/01/2026M01346961-P1 · 420 PARK AVENUE SOUTHOpen ↗
08/19/2026M01346773-I1 · 420 PARK AVENUE SOUTHOpen ↗
Showing 3 of 13 on file for this type
▸DOB NOWProgress Inspector Seal & Signature11
10/01/2026M01346961-P1 · 420 PARK AVENUE SOUTHOpen ↗
09/27/2026M01346961-S2 · 420 PARK AVENUE SOUTHOpen ↗
09/02/2026M01347052-S1 · 420 PARK AVENUE SOUTHOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature11
10/01/2026M01346961-S4 · 420 PARK AVENUE SOUTHOpen ↗
10/01/2026M01346961-P1 · 420 PARK AVENUE SOUTHOpen ↗
09/27/2026M01346961-S2 · 420 PARK AVENUE SOUTHOpen ↗
Showing 3 of 11 on file for this type