- For Lease Contact for pricing
- Property Type Office
- Property Size 137,958 SF
- # of Floors 5
- Parking Ratio 7.97 / 1,000 SF
- Year Built 1999
- Date Updated Sep 10, 2026
Description
75 Sidney Street and 45 Sidney Street are a matched pair of office/R&D buildings connected by a skybridge that were designed and constructed in tandem with Millennium Pharmaceuticals.
True
3 Spaces Available
Partial 1 Floor
Space Type
Office
Lease Rate
Negotiable
Total Space
18,000 SF
Floor
1
Divisible Space
5,000 - 18,000 SF
Available Date
Oct 1, 2026
Lease Type
NNN
Renewal Option
No
Sublease
Yes
Sublease Expiry
Jan 31, 2032
Partial 2 Floor
Space Type
Office
Lease Rate
Negotiable
Total Space
30,000 SF
Floor
2
Divisible Space
30,000 - 30,000 SF
Available Date
Oct 1, 2026
Lease Type
NNN
Renewal Option
No
Sublease
Yes
Sublease Expiry
Jan 31, 2032
Partial 3 Floor
Space Type
Office
Lease Rate
Negotiable
Total Space
30,000 SF
Floor
3
Divisible Space
30,000 - 30,000 SF
Available Date
Oct 1, 2026
Lease Type
NNN
Renewal Option
No
Sublease
Yes
Sublease Expiry
Jan 31, 2032
Contacts
Connor T. Barnes
Julia Ryan
Elisa Konik
Location
Located at 75 Sidney Street, Cambridge, MA 02139, this property is part of the Cambridgeport neighborhood and Boston market.
Contact 75 Sidney Street
