Listing

1 Monument Sq

Office

1 Monument Sq, Portland, ME 04101

8 photos
Office For Lease
Asking
$23.00/SF Modified Gross
Available
12,670 SF
Floor / Suite
4 · 4th Floor Suite
Listing Details
Type
Lease
Status
Active
Asking Rate
$23.00/SF Modified Gross
Monthly Rent
$24,284/mo
List Date
Sep 25, 2026
Available
Sep 25, 2026
Days on Market
24
Owner Occupied
No
Last Verified
Sep 25, 2026
Agent Ownership Interest
No

Class A Office Space

Situated in the heart of the downtown financial and business district, One Monument Square offers stunning views of the city, Casco Bay, and Back Cove. Enjoy local restaurants such as CERA, David’s, Shay’s, Public Market House, Nura and many more. Building amenities include a pet-friendly policy, CERA restaurant/café, and a brand new gym. 2,965 – 35,105± SF of Class A office space available for lease.

Space Details

Floor
4
Suite
4th Floor Suite
Available SF
12,670 SF
Property Highlights
View full property →
Type
Office · General
Building Class
Class A
Size
124,658 SF
Acreage
0.35 Acres
Occupancy Type
Multi Tenant
Year Built
1970
Year Renovated
2010
Floors
10
Zoning
B3
County
Cumberland
Submarket
Portland-South Portland
Contact
CR
Claire RichardsonPrimary
The Boulos Company
Attachments
Location