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Design Firm
MILLENIUM MECHANICAL SERVICES INC.
Design
2 projects with open permitsMANHATTAN · 17BROOKLYN · 2
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12 buildings
24
Total Filings
19
Projects on File
12
Buildings Worked
2
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month19 projects all-time
0123Aug '19 · 1Sep '19 · 2Nov '19 · 1Dec '19 · 1Jun '20 · 1Jul '20 · 1Apr '21 · 1Apr '22 · 2Jun '22 · 1Sep '22 · 2Oct '22 · 1May '23 · 1Oct '24 · 2Feb '26 · 1Aug '26 · 12020202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit211%
Signed off1579%
Filed only211%
By project type
Alteration19
Most active buildings
All buildings →
498 7 AVENUEMANHATTAN · 2 open · latest 08/14/2026
4 projects
27 EAST 22 STREETMANHATTAN · latest 01/24/2023
2 projects
200 MADISON AVENUEMANHATTAN · latest 09/16/2019
2 projects
222 CENTRAL PARK SOUTHMANHATTAN · latest 03/18/2026
2 projects
814 MARCY AVENUEBROOKLYN · latest 10/03/2022
2 projects
2 WALL STREETMANHATTAN · latest 06/30/2022
1 projects
Key relationships
Everyone →
People
All people →
JOHN DUCEYlatest 07/28/2026
21 filings
Filed under
MILLENIUM MECHANICAL SERVICES INC.24
Identified by the contact ids of the people who file for the firm and by its email domain (milleniummech.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01106250 ↗498 7 AVENUE
MANHATTAN
AlterationPermit Issued10/14/202408/14/2026
Contractor ACE-ATLAS PLBG & HTG LLC
Install Fuel Oil Storage Tank is 300 gallons and is connected to Emergency Generator.
M01437438 ↗290 3 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/05/2026———
M01314618 ↗222 CENTRAL PARK SOUTH
MANHATTAN
AlterationSigned-off02/22/202603/18/2026
Owner TOD WILLIAMS BILLIE TSIEN ARCHITECT
Contractor MILLENIUM MECHANICAL SERV
REPLACEMENT OF 3 TON SPLIT AC SYSTEM SERVING FRONT EAST OFFICE AND 2nd Fl
M01105968 ↗498 7 AVENUE
MANHATTAN
AlterationPermit Issued10/14/202410/18/2024
Contractor MILLENIUM MECHANICAL SERV
Replace existing Standby Emergency Generator with new .
M00871150 ↗222 CENTRAL PARK SOUTH
MANHATTAN
AlterationSigned-off05/19/202306/02/2023
Owner TOD WILLIAMS BILLIE TSIEN ARCHITECT
Contractor MILLENIUM MECHANICAL SERV
REPLACEMENT OF 3 TON DUCTLESS SYSTEM SERVING LIBRARY AND SMALL SERVER ROOM
M08006303 ↗27 EAST 22 STREET
MANHATTAN
AlterationSigned-off09/24/202201/24/2023
Owner T. GEORGE REALTY INC.
Contractor MILLENIUM MECHANICAL SERV
Replace Heating/Cooling Unit Thru-wall type
Counts cover all 19 projects (19 DOB NOW). Dated by first filing; BIS projects by first permit issuance.
Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.
PersonFilingsMost recent
JOHN DUCEY2107/28/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
MILLENIUM MECHANICAL SERV1403/20/2026
METRO INCORPORATED202/08/2023
ACE-ATLAS PLBG & HTG LLC110/14/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
MARCY PLAZA209/29/2022
T. GEORGE REALTY INC.202/08/2023
TOD WILLIAMS BILLIE TSIEN ARCHITECT202/22/2026
FIELDSTONE CAPITAL INC.106/21/2022
GEORGE COMFORT & SONS, INC.112/20/2019
MILROSE107/18/2020
19 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 19Open permit 2Signed off 15Filed only 2
19 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01106250 ↗498 7 AVENUE
MANHATTAN
AlterationPermit Issued10/14/202408/14/2026
Contractor ACE-ATLAS PLBG & HTG LLC
Install Fuel Oil Storage Tank is 300 gallons and is connected to Emergency Generator.
M01437438 ↗290 3 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/05/2026———
M01314618 ↗222 CENTRAL PARK SOUTH
MANHATTAN
AlterationSigned-off02/22/202603/18/2026
Owner TOD WILLIAMS BILLIE TSIEN ARCHITECT
Contractor MILLENIUM MECHANICAL SERV
REPLACEMENT OF 3 TON SPLIT AC SYSTEM SERVING FRONT EAST OFFICE AND 2nd Fl
M01105968 ↗498 7 AVENUE
MANHATTAN
AlterationPermit Issued10/14/202410/18/2024
Contractor MILLENIUM MECHANICAL SERV
Replace existing Standby Emergency Generator with new .
M00871150 ↗222 CENTRAL PARK SOUTH
MANHATTAN
AlterationSigned-off05/19/202306/02/2023
Owner TOD WILLIAMS BILLIE TSIEN ARCHITECT
Contractor MILLENIUM MECHANICAL SERV
REPLACEMENT OF 3 TON DUCTLESS SYSTEM SERVING LIBRARY AND SMALL SERVER ROOM
M08006303 ↗27 EAST 22 STREET
MANHATTAN
AlterationSigned-off09/24/202201/24/2023
Owner T. GEORGE REALTY INC.
Contractor MILLENIUM MECHANICAL SERV
Replace Heating/Cooling Unit Thru-wall type
M08011148 ↗27 EAST 22 STREET
MANHATTAN
AlterationSigned-off10/05/202201/23/2023
Owner T. GEORGE REALTY INC.
Contractor METRO INCORPORATED
RECONNECT GAS PIPING TO FORCED AIR FURNACE REPLACEMENT FILED UNDER JOB NO. M08006303-I1 REVISE PLANS TO SHOW EXISTING/REMOVAL PLAN AND NEW/I…
B00793147 ↗814 MARCY AVENUE
BROOKLYN
AlterationSigned-off09/15/202210/03/2022
Owner MARCY PLAZA
Contractor METRO INCORPORATED
Reconnect gas piping to furnace replaced under Project B00724478. Plans Revised to include Gas Riser Diagram, Gas Piping Schematic and Flue…
M00710462 ↗2 WALL STREET
MANHATTAN
AlterationSigned-off04/20/202206/30/2022
Owner FIELDSTONE CAPITAL INC.
Contractor MILLENIUM MECHANICAL SERV
Replace Water-cooled air conditioning equipment on floors 3, 5, 7 with New. Units on 5, 7 floor have steam heat coils
B00724478 ↗814 MARCY AVENUE
BROOKLYN
AlterationSigned-off06/13/202206/21/2022
Owner MARCY PLAZA
Contractor MILLENIUM MECHANICAL SERV
Replacement of Furnace /air handling unit and AC condensing unit serving cellar area.
M00692625 ↗130 EAST 12 STREET
MANHATTAN
AlterationFiled — no permit on record04/10/2022———
M00445202 ↗7 WEST 18 STREET
MANHATTAN
AlterationSigned-off04/07/202104/08/2021
Contractor MILLENIUM MECHANICAL SERV
Replace Roof Top Packaged AC Unit. Replace Ductless Split AC Unit serving the 8th floor Server Room.
M00355420 ↗319 SPRING STREET
MANHATTAN
AlterationSigned-off07/18/202007/28/2020
Owner MILROSE
Contractor MILLENIUM MECHANICAL SERV
REPLACEMENT OF ONE DUCTLESS SPLIT AC SYSTEM TO SERVE IT ROOM ON 2ND FLOOR
M00355316 ↗498 7 AVENUE
MANHATTAN
AlterationSigned-off06/23/202006/24/2020
Contractor MILLENIUM MECHANICAL SERV
Replace existing air-cooled ac units with water-cooled ac units. 18 tons nominal cooling only.
M00273721 ↗252 WEST 38 STREET
MANHATTAN
AlterationSigned-off12/20/201901/06/2020
Owner CO GEORGE COMFORT & SONS, INC
Contractor MILLENIUM MECHANICAL SERV
Install 2 new split air conditioning units replacing existing units.
M00243518 ↗30 WEST 61 STREET
MANHATTAN
AlterationSigned-off11/05/201911/13/2019
Contractor MILLENIUM MECHANICAL SERV
Replace 4 Ton Rooftop AC Unit with new.
M00198445 ↗200 MADISON AVENUE
MANHATTAN
AlterationSigned-off09/13/201909/16/2019
Contractor MILLENIUM MECHANICAL SERV
INSTALL REPLACEMENT WATER-COOLED AC UNITS (TWO 15 TON) ON 24TH FLOOR
M00202947 ↗498 7 AVENUE
MANHATTAN
AlterationSigned-off08/29/201909/11/2019
Contractor MILLENIUM MECHANICAL SERV
Furnish and Install new Air Conditioning Systems for two Rooftop Elevator Equipment Rooms.
M00200898 ↗200 MADISON AVENUE
MANHATTAN
AlterationSigned-off09/05/201909/10/2019
Contractor MILLENIUM MECHANICAL SERV
REPLACE (1) 30 TON WATER-COOLED AC UNIT IN 2ND FLOOR MER
Scope of Work
HVAC — 3 projects · most recent 08/05/2026
Heating and Air Conditioning Systems Generators Air Conditioning Systems
Earthwork — 1 project · most recent 08/05/2026
Tenant Protection Plan 72 Hour
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
290 3 AVENUE ↗107/28/2026
498 7 AVENUE ↗501/06/2026
222 CENTRAL PARK SOUTH ↗211/05/2025
27 EAST 22 STREET ↗301/31/2023
814 MARCY AVENUE ↗309/24/2022
2 WALL STREET ↗306/10/2022
7 WEST 18 STREET ↗112/28/2020
252 WEST 38 STREET ↗111/29/2019
30 WEST 61 STREET ↗110/09/2019
200 MADISON AVENUE ↗207/23/2019
319 SPRING STREET ↗1—
130 EAST 12 STREET ↗1—
▾Documents — 138 on file (BIS + DOB NOW)
▸Plans & Drawings23
▸DOB NOWPlans/Sketch15
09/02/2026M00692625-I1 · 130 EAST 12 STREETRequest digital key ↗
09/02/2026M00710462-P1 · 2 WALL STREETRequest digital key ↗
09/02/2026M00710462-I1 · 2 WALL STREETRequest digital key ↗
Showing 3 of 15 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems8
09/05/2026M00202947-I1 · 498 7 AVENUERequest digital key ↗
09/05/2026M00200898-I1 · 200 MADISON AVENUERequest digital key ↗
09/05/2026M00198445-I1 · 200 MADISON AVENUERequest digital key ↗
Showing 3 of 8 on file for this type
▸Applications & Permits6
▸DOB NOWLPC Approval/Permit6
08/29/2026B00724478-I1 · 814 MARCY AVENUEOpen ↗
08/13/2026B00793147-P1 · 814 MARCY AVENUEOpen ↗
08/13/2026M00445202-I1 · 7 WEST 18 STREETOpen ↗
Showing 3 of 6 on file for this type
▸Seals & Professional Certifications96
▸DOB NOWProgress Inspector Seal & Signature60
09/27/2026M00692625-I1 · 130 EAST 12 STREETOpen ↗
09/23/2026M01314618-I1 · 222 CENTRAL PARK SOUTHOpen ↗
09/23/2026M01314618-I1 · 222 CENTRAL PARK SOUTHOpen ↗
Showing 3 of 60 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature23
09/05/2026M00243518-I1 · 30 WEST 61 STREETOpen ↗
09/05/2026M00273721-I1 · 252 WEST 38 STREETOpen ↗
09/04/2026M00355420-I1 · 319 SPRING STREETOpen ↗
Showing 3 of 23 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature13
09/27/2026M00692625-I1 · 130 EAST 12 STREETOpen ↗
09/23/2026M01314618-I1 · 222 CENTRAL PARK SOUTHOpen ↗
09/02/2026M00200898-I1 · 200 MADISON AVENUEOpen ↗
Showing 3 of 13 on file for this type
▸Safety & Tenant Protection4
▸DOB NOWHPD-1: Anti-Harassment Area Checklist3
09/05/2026M00273721-I1 · 252 WEST 38 STREETOpen ↗
08/13/2026M00202947-I1 · 498 7 AVENUEOpen ↗
08/13/2026M00355316-I1 · 498 7 AVENUEOpen ↗
▸DOB NOWTenant Protection Plan1
09/05/2026M00243518-I1 · 30 WEST 61 STREETOpen ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
09/05/2026M00273721-I1 · 252 WEST 38 STREETOpen ↗
08/13/2026M00202947-I1 · 498 7 AVENUEOpen ↗
08/13/2026M00198445-I1 · 200 MADISON AVENUEOpen ↗
Showing 3 of 5 on file for this type
▸Energy Compliance4
▸DOB NOWEN2: As Built Energy Analysis3
08/29/2026B00724478-I1 · 814 MARCY AVENUEOpen ↗
08/13/2026M00710462-I1 · 2 WALL STREETOpen ↗
08/13/2026M00445202-I1 · 7 WEST 18 STREETOpen ↗
▸DOB NOWPreliminary Commissioning Report Certification1
08/13/2026M00710462-I1 · 2 WALL STREETOpen ↗