Siena Construction Corporation

Addition contractor in Cambridge, MA · Permits indexed since 2025-09-19
34
Total Permits
3
Last 90 Days
0
Last 30 Days
$434,202
Avg Project Value

Contact

Phone & Website
(•••) •••-••••
🔒 Subscribe to reveal contact

Permit History (50 of 113, after dedup)

Date Type Address Description Value
2026-07-01 Building: Alteration and Addition 455 Main St 5th floor renovation of fish suite/lab. $199,266
2026-06-08 Building: Alteration and Addition 290 Binney St Misc. MEP Upgrades in select areas on floors 3-14 & 17. No FA work. No FP reloca… -
2026-06-01 Building: Alteration and Addition 455 Main St 3rd floor renovation of select support rooms for future lab fitout $199,856
2026-05-11 Building: Alteration and Addition 30 Acorn Park Dr 6th floor Boardroom renovation project. Combine existing conference room and off… $110,450
2026-01-21 Building: Alteration and Addition 350 Massachusetts Ave Removing (2) Exterior decorative canopies. Sidewalk permit application #1196187 $4,120
2025-12-30 Building: Alteration and Addition 20 Sidney St Adding a convenience door from the 2nd floor tenant space into the parking garag… $35,375
2025-10-06 Building: Alteration and Addition 455 Main St 5th Floor Interior Lab Renovation- Jain Lab 5359 $53,500
2025-10-06 Building: Alteration and Addition 455 Main St 5th Floor Interior Lab Renovation- Jain Lab 539 $107,000
2025-09-19 Building: Alteration and Addition 245 First St 17th Floor Interior Demolition to prepare for future tenant fit-out. $148,460
2025-06-03 Building: Alteration and Addition 1 One Kendall Square Complex, Unit 400, 600, 700 Installing steel decking and roof infills at areas where mechanical equipment wa… $108,010
2025-05-29 Building: Alteration and Addition 455 Main St 5th Floor Lab Renovation. $224,000
2025-05-29 Building: Alteration and Addition 455 Main St 4th floor lab renovation. $198,000
2025-03-12 Building: Alteration and Addition 35 Landsdowne St Replacing 2 existing loading dock doors. New doors to tie into Fire Alarm system… $35,110
2024-10-28 Building: Alteration and Addition 455 Main St 5th & 7th floor minor lab renovation. $135,500
2024-03-25 Building: Alteration and Addition 64 Sidney St 2nd and 3rd floor finishes upgrade.  All finishes to replace existing. Replacing… $700,500
2023-11-13 Building: Alteration and Addition 1 Main St Upgrades to 1st floor tenant space, with mezzanine. New exterior storefront entr… $187,291
2023-10-31 Building: Alteration and Addition 35 Landsdowne St 5th floor renovation to existing lab. Cutting and capping existing lab gases, ad… $51,805
2023-10-10 Building: Alteration and Addition 1 Main St Renovation to existing restrooms on the 10th floor, and common area hallway. New… $139,620
2023-09-22 Building: Alteration and Addition 75 Sidney St Tenant lab renovation for BioNTech on the 4th floor. New finishes and MEP device… $159,171
2023-09-20 Building: Alteration and Addition 620 Memorial Dr Comestic renovation to first floor lobby and common spaces. $276,199
2023-08-29 Building: Alteration and Addition 455 Main St 6th floor lab and office renovation. $151,000
2023-08-28 Building: Alteration and Addition 75 Sidney St A/V Upgrades in conference rooms on floors 1-3 in the building. Opening walls to… $700,000
2023-08-09 Building: Alteration and Addition 30 Acorn Park Dr 1st floor lab expansion project. Build-out of 3 new rooms, in currently vacant s… $166,068
2023-07-28 Building: Alteration and Addition 1030 Massachusetts Ave 4th floor tenant space interior renovation. New finishes (carpet, ceiling, paint… $171,996
2023-07-28 Building: Alteration and Addition 1 Portland St Renovation of an existing vivarium lab space on Level 7 to transform an existing… $75,150
2023-06-29 Building: Alteration and Addition 300 Massachusetts Ave A/V Upgrades in conference rooms on floors 2-6 in the building. Opening walls to… $375,000
2023-05-31 Building: Alteration and Addition 450 Kendall St 5th floor office space fit-out $597,615
2023-05-04 Building: Alteration and Addition 101 Main St 12th Floor Spec Suite Fitout- Suite 1210B. New finishes, new walls, new MEP's, F… $165,056
2023-05-04 Building: Alteration and Addition 101 Main St 12th Floor Spec Suite Fit-Out. Suite 1210A. New finishes, walls, MEP's, FA & FP. $163,638
2023-04-25 Building: Alteration and Addition 105 Broadway Renovation to 5th floor conference room- selective demo, new interior finishes, … $50,571
2023-03-27 Building: Alteration and Addition 75 Sidney St Tenant lab renovation for BioNTech on the 4th floor. New finishes and MEP device… $160,344
2023-03-27 Building: Alteration and Addition 101 Main St 12th floor interior demo to prepare for tenant fit-out. No FP or FA work until t… $31,000
2023-03-01 Building: Alteration and Addition 1541 Massachusetts Ave Mechanical Upgrades on floors B-5. Building will be unoccupied during 2023-2024 … $2,915,028
2023-02-24 Building: Alteration and Addition 245 First St New drywall partition to create new microscope room in existing 2nd floor lab sp… $34,000
2023-02-07 Building: Alteration and Addition 101 Main St 1st floor Mailroom renovation. Demolition of one partition, new mailboxes, new c… $44,300
2023-01-10 Building: Alteration and Addition 60 First St Fit-out of approximately 36,000 gsf of lab and office space on the 2nd Floor. $6,612,379
2022-10-17 Building: Alteration and Addition 30 Acorn Park Dr 1st floor office space renovation. New walls for offices, new finishes, new coff… $223,850
2022-10-17 Building: Alteration and Addition 200 Technology Sq Basement vivarium renovation. New MEP's, new walls, new lab equipment, FA & FP w… $118,100
2022-10-17 Building: Alteration and Addition 300 Massachusetts Ave A/V Upgrades. Electrical work and paint. No structural work, FA, or sprinkler wo… $22,290
2022-09-30 Building: Alteration and Addition 320 Charles St Minor office renovation on the second floor. Replacing carpet, painting walls, r… $89,000
2022-08-17 Building: Alteration and Addition 1 Main St Tenant space renovation on the 13th floor. Some new walls, some new finishes. $33,000
2022-08-15 Building: Alteration and Addition 1 Main St Common Area renovation on the 1st floor. $133,864
2022-08-15 Building: Alteration and Addition 101 Main St 12th Floor Restroom Renovation $103,646
2022-08-15 Building: Alteration and Addition 1 Main St 5th Floor Restroom Renovation $126,976
2022-06-23 Building: Alteration and Addition 765 Concord Ave Refresh of school offices. New finishes, and build-out new private offices. $174,200
2022-06-23 Building: Alteration and Addition 215 First St partial 5th Floor office renovation for Flare Therapeutics $201,729
2022-06-21 Building: Alteration and Addition 1 Hampshire St Renovation to 6th Floor Executive Suite. $850,000
2022-05-02 Building: Alteration and Addition 650 East Kendall St AV work. Installing a projector & screen into a conference room. Adding power fo… $16,511
2022-04-11 Building: Alteration and Addition 30 Acorn Park Dr 2nd Floor Lab Renovation. New finishes, minor MEP work. $40,700
2022-03-28 Building: Alteration and Addition 301 Massachusetts Ave Minor renovation of existing suite to include select demolition of non-load bear… $186,374

Unlock full contact info for every contractor

Phone numbers, websites, license status, and CSV export — for all Cambridge contractors.

Subscribe — $149/mo

Is this your business? Get your free source-published permits badge →

Choose markets for a Pro trial →
Choose your
market next