COMPANY RECORD · NEW YORK, NY

Unispace Of Boston LLC — permit history in New York, NY

Unispace Of Boston LLC appears on 55 New York permit records from 2019 through 2026, most often general construction (50.9% of the record).

Permit categories

CategoryPermitsShare
General construction2850.9%
Mechanical / HVAC2749.1%

2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.

Activity by year

YearPermits issued
20193
20204
20213
202214
202310
202413
20254
20264

Busiest year on record: 2022, with 14 permits. One project can account for several filings, so read this as filing activity rather than workload.

Named on the same permit

Name in sourceLinked permitsLast seen
A Plus Plumbing Corp22024-02-26
Abco-Peerless Sprklr Corp22024-02-14
Par Plumbing Co., Inc12024-09-12

3 companies are named alongside Unispace Of Boston LLC on the same New York permit. A shared permit is a documented co-appearance, not proof of a current contract. Names appear as the authority published them.

Where they worked

Address in sourceMost recent permit
51 ASTOR PLACE2026-08-11
50 HUDSON YARDS2026-01-07
546 FIFTH AVENUE2025-10-10
1211 6 AVENUE2025-06-17
1745 BROADWAY2025-05-20
1 LIBERTY PLAZA2024-09-30
9 WEST 57 STREET2024-09-16
599 LEXINGTON AVENUE2024-08-15
420 5 AVENUE2024-05-07
605 THIRD AVENUE2024-04-30
285 MADISON AVENUE2024-01-17
120 BROADWAY2023-08-31
1 ROCKEFELLER PLAZA2023-08-17
311 WEST BROADWAY2023-05-17

24 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $5,000 to $15,534,090, median $371,300. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.

Permits on record

55 permits; open the 50 most recent
PermitIssuedCategoryAddress in sourceScope as filedDeclared value
M01432021-I1-MS2026-08-11Mechanical / HVAC51 ASTOR PLACEMechanical work for Xantium Investments on 12th floor$350,000
M01432016-I1-GC2026-08-11General construction51 ASTOR PLACEGeneral construction for Xantium Investments on 12th floor$1,592,276
M01346801-I1-GC2026-02-04General construction51 ASTOR PLACEGeneral construction for temporary space for Xantium Investments on 12th floor$234,360
M01270476-I1-GC2026-01-07General construction50 HUDSON YARDSFILING HEREWITH FOR INTERIOR RENOVATION PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY,$12,044,701
M01274840-I1-GC2025-10-10General construction546 FIFTH AVENUEMINOR INTERIOR RENOVATION TO EXISTINGTENANT FLOOR 5 PRIVATE OFFICES IN BUILDING. NO CHANGE IN OCCUPANTLOAD NUMBER, USE OR EGRESS. NO RENOVATION TO EXTERIOR ENVELOP.$134,360
M01225301-I1-MS2025-06-17Mechanical / HVAC1211 6 AVENUEFiling herewith drawings indicating modification of the mechanical system on the 5th floor. No change in use, egress, or occupancy under this application.$30,998
M01225257-I1-GC2025-06-12General construction1211 6 AVENUEFiling herewith drawings indicating interior renovations on the 5th floor. No change in use, egress, or occupancy under this application.$459,998
M01215676-I1-GC2025-05-20General construction1745 BROADWAYInterior renovation as per plans filed herewith.$274,000
M01095943-I1-GC2024-09-30General construction1 LIBERTY PLAZAInterior renovation as shown on plans. There is no change in egress use or occupancy.$2,639,754
M01102815-I1-MS2024-09-19Mechanical / HVAC1 LIBERTY PLAZAMechanical modifications as shown on plans.$244,230
M01098744-S1-MS2024-09-16Mechanical / HVAC9 WEST 57 STREETFiling herewith mechanical work on the 45th floor as per plans filed herewith. No change to use, egress, or occupancy.$1,036,485
M01098744-I1-GC2024-09-16General construction9 WEST 57 STREETInterior Alteration: Removal and installation of interior nonbearing partitions as per plans filed herewith. No change in use, egress or occupancy under this application.$2,740,927
M01083621-I1-MS2024-08-15Mechanical / HVAC599 LEXINGTON AVENUEHVAC and ductwork modification of the 13th floor as indicated on attached plans.$754,828
M01083616-I1-GC2024-08-14General construction599 LEXINGTON AVENUEGeneral construction related to buildout of 13th floor as indicated on attached plans$1,489,751
M01037249-I1-MS2024-05-07Mechanical / HVAC420 5 AVENUEFiling herewith to indicate mechanical work ductwork as shown on plans. There will be no change of use, occupancy or egress under this application.$724,000
M01033168-I1-GC2024-05-03General construction420 5 AVENUE(MSC) FILING HEREWITH FOR NON-STRUCTURAL INTERIOR DEMOLITION AND INTERIOR RENOVATION AS SHOWN ON PLANS . THERE WILL BE NO CHANGE OF USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION.$3,100,000
M01037270-I1-GC2024-04-30General construction605 THIRD AVENUEGeneral Construction to take place on the 2nd floor as per plans filed herewith. No change in use, egress, or occupancy.$72,000
M01003383-I1-GC2024-02-22General construction420 5 AVENUEFiling herewith for non-structural demo work on 8th and 26th floors as shown on plans. There will be no change of use, occupancy or egress under this application.$5,000
M01003389-I1-MS2024-02-22Mechanical / HVAC420 5 AVENUEFiling herewith for demo mechanical work on 8th and 26th floors as shown on plans. There will be no change of use, occupancy or egress under this application.$30,200
M00961320-I1-GC2024-01-17General construction285 MADISON AVENUEINSTALL NEW PARTITIONS, MILLWORK, FINISHES AND CEILINGS PER PLANS HEREWITH SUBMITTED. NO CHANGE IN USE, EGRESS OR OCCUPANCY$244,000
M00961320-S1-MS2024-01-16Mechanical / HVAC285 MADISON AVENUEModify existing ductwork per plans herewith submitted$73,200
M00941810-I1-GC2023-10-26General construction285 MADISON AVENUEREMOVE EXISTING PARTITIONS, MILLWORK, FINISHES AND ACT CEILING PER PLANS HEREWITH SUBMITTED. NO CHANGE IN USE, EGRESS OR OCCUPANCY$25,925
M00890518-I1-GC2023-08-31General construction120 BROADWAYRemoval and installation of interior nonbearing partitions as per plans filed herewith. Establishing Place of Assembly (M00889723-I1); No additional changes in use.$1,306,892
M00906654-I1-GC2023-08-17General construction1 ROCKEFELLER PLAZAFiling herewith interior renovation in existing 30th floor space. No change in use, egress or occupancy.$35,000
M00889705-I1-MS2023-07-26Mechanical / HVAC120 BROADWAYModification to existing HVAC system as per plans filed herewith. No change in use, egress or occupancy under this application.$530,940
M00889694-I1-GC2023-07-26General construction120 BROADWAYInterior renovation to existing tenant floor. Includes removal of existing non-structural partitions, floor finishes and suspended ceiling and reconstruction of interior non-struct$3,440,673
M00709221-I1-MS2023-05-17Mechanical / HVAC311 WEST BROADWAYMECHANICAL WORK IN CONJUNCTION WITH INTERIOR RENOVATION OF 1ST FLOOR COMMERCIAL SPACE. AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.$28,000
M00824873-I1-GC2023-03-23General construction599 LEXINGTON AVENUEGeneral Construction on 14th (Partial) and 15th Floors as indicated on attached plans. There is no change in egress, use or occupancy.$1,920,400
M00824882-I1-MS2023-03-20Mechanical / HVAC599 LEXINGTON AVENUEModification of Mechanical/HVAC systems on 14th (Partial) and 15th Floors as indicated on attached plans. There is no change to egress, use or occupancy.$686,250
S00821864-I1-MS2023-03-09Mechanical / HVAC260 CHRISTOPHER LANEInterior renovation of HVAC ductwork and associated mechanical systems on part of ground floor as indicated on attached plans. There is no change in egress, use or occupancy.$94,650
S00821111-I1-GC2023-03-08General construction260 CHRISTOPHER LANEInterior renovation on part of ground floor as indicated on attached plans. There is no change in egress, use or occupancy.$306,750
M00787545-I1-MS2022-10-26Mechanical / HVAC12 EAST 49 STREETModification of the mechanical system on the 36th FL office space QIC. No change of use, egress or occupancy.$192,000
M00787480-I1-GC2022-10-12General construction12 EAST 49 STREETInterior renovation of office space on the 36th FL. No change of use, egress or occupancy.$512,000
M00738649-I1-MS2022-08-19Mechanical / HVAC277 PARK AVENUEModification to Mechanical systems as per plans filed herewith. No change in use, occupancy or egress.$750,000
M00738639-I1-GC2022-08-08General construction277 PARK AVENUEInterior renovation as per plans filed herewith. No change in use, occupancy or egress.$3,000,000
M00641951-I1-MS2022-07-26Mechanical / HVAC462 BROADWAYMechanical roof work.$1,686,000
M00641945-I1-MS2022-04-26Mechanical / HVAC462 BROADWAYMECHANICAL WORK IN CONJUNCTION WITH INTERIOR OFFICE RENOVATION ON FLOORS 3 THRU6. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.$3,976,150
M00641946-I1-GC2022-04-15General construction462 BROADWAYINTERIOR OFFICE RENOVATION ON FLOORS 3 THROUGH 6. WORK TO INCLUDE INSTALLATION OF INTERCONNECTING STAIRS. MINOR RENOVATION OF THE CROSBY STREET LOBBY. NO CHANGE IN USE, EGRESS, OR $15,534,090
M00672810-I1-GC2022-04-08General construction311 WEST BROADWAYINTERIOR RENOVATION OF 1ST FLOOR COMMERCIAL SPACE AS PER PLANS FILED HEREWITH. WORK TO INCLUDE INTERIOR DEMO AND INSTALL OF FINISHES AND NON-LOAD BEARING PARTITIONS AND DOORS. NO C$411,000
S00675603-I1-GC2022-03-14General construction260 CHRISTOPHER LANEInterior renovation on the 3rd floor. There is no change in egress use or occupancy.$371,300
M00641260-I1-GC2022-03-09General construction462 BROADWAYDEMOLITION OF EXISTING INTERIOR NON-STRUCTURAL PARTITIONS, CEILINGS, AND FINISHES ON FLOORS 5 AND 6. NO CHANGES TO USE, EGRESS, OR OCCUPANCY.$250,000
M00641261-I1-MS2022-03-09Mechanical / HVAC462 BROADWAYMECHANICAL DEMOLITION IN CONJUNCTION WITH INTERIOR RENOVATION ON FLOORS 5 AND 6. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.$50,000
S00675632-I1-MS2022-02-18Mechanical / HVAC260 CHRISTOPHER LANEMechanical modifications on 3rd floor. There is no change in use egress of occupancy.$47,575
M00648531-I1-MS2022-01-14Mechanical / HVAC250 PARK AVENUE SOUTHMODIFICATION TO AN EXISTING MECHANICAL SYSTEM. NO UNIT INSTALLATION OR REPLACEMENT.$13,300
M00645203-I1-GC2022-01-14General construction250 PARK AVENUE SOUTHINTERIOR RENOVATION TO FLOOR 3 IN BUILDING.NO CHANGE IN OCCUPANCY, USE OR EGRESS. NO RENOVATION TO EXTERIOR ENVELOPE.$328,700
M00538253-I1-MS2021-07-13Mechanical / HVAC55 WATER STREETMechanical modifications related to HVAC systems on SC2 (SL2), and 33-35 as indicated on attached plans. There is no change in egress, use occupancy.$4,120,000
M00537731-I1-GC2021-06-18General construction55 WATER STREETInterior renovation, including construction of interior non bearing partitions, new ceilings, doors, hardware and finishes as indicated on attached plans. No change in occupancy, u$9,000,000
M00491815-I1-GC2021-05-17General construction55 WATER STREETInstallation of convenience stair & associated construction on part of 33rd, 34, & 35th floors. There is no change in use, egress or occupancy.$600,000
M00341395-I1-MS2020-09-18Mechanical / HVAC420 FIFTH AVENUEFILING HEREWITH FOR MECHANICAL DUCT WORK AND INSTALLATION OF HVAC ON 4TH FLOOR OFFICE SPACE AS SHOWN ON PLANS. THERE WILL NO CHANGE OF USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATI$415,000
M00361503-I1-MS2020-07-27Mechanical / HVAC325 HUDSON STREETMechanical changes on the 10th floor (Unispace - east side) as indicated on drawings.$47,420

Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.

Source and limits

Public New York permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →