511 Congress Street

Office

511 Congress St, Portland, ME 04101

511 Congress Street
Office For Lease
Asking
$23.50/SF Modified Gross
Available
6,685 SF
Floor / Suite
9 · Suite 901
Listing Details
Type
Lease
Status
Active
Asking Rate
$23.50/SF Modified Gross
Lease Type
Modified gross
List Date
Dec 16, 2025
Available
Dec 1, 2025
Days on Market
196
Owner Occupied
No
Last Verified
Jun 22, 2026

Top Floor Office Suite

6,685 SF Top Floor Office Suite Centrally located in downtown Portland, in the heart of the Financial District Easily accessible from I-295 exit 6 On-site parking garage with direct building access Newly renovated lobby with Class A finishes Premiere 306 degree views of Portland and the surrounding towns Amenities include first floor gym Tenant, building security, on-site property management

Space Details

Floor
9
Suite
Suite 901
Available SF
6,685 SF
Primary Use
Office
Property Highlights
View full property →
Type
Office
Subtype
Mixed use
Building Class
Class A
Size
128,400 SF
Acreage
1.01 Acres
Occupancy Type
Multi Tenant
Year Built
1974
Year Renovated
2013
Floors
9
Zoning
B-3
Sprinklered
Yes
County
Cumberland
Submarket
Portland-South Portland
Contact
PG
Peter GwilymPrimary
Porta & Company
Attachments
Location