Photo of 100 Middle Street
Class A Office · General

100 Middle Street

Portland, ME 04101

Available spaces

4 for lease · asking rates · updated Sep 10, 2026

Suite West Tower at 100 Middle St

Suite West Tower

$26.00–$30.00/SF/yr MG
Size 16,991 SFAvailable Now≈ Monthly $36,814–$42,478

- 2,472± SF - 16,911± SF of Class A Office Space available for lease - Centrally located in Downtown Portland, minutes away from Commercial Street - Easily accessible from I-295 exit 7 - Attached parking garage with direct building access - Newly renovated lobby with Class A finishes - Amenities include building security and on-site property management

Suite East Tower- 4th Floor at 100 Middle St

Suite East Tower- 4th Floor

$26.00–$30.00/SF/yr
Size 11,557 SFAvailable Now≈ Monthly $25,040–$28,893

- 2,472± SF - 16,911± SF of Class A Office Space available for lease - Centrally located in Downtown Portland, minutes away from Commercial Street - Easily accessible from I-295 exit 7 - Attached parking garage with direct building access - Newly renovated lobby with Class A finishes - Amenities include building security and on-site property management

Suite East Tower- 2nd Floor at 100 Middle St

Suite East Tower- 2nd Floor

$26.00–$30.00/SF/yr
Size 2,472 SFAvailable Now≈ Monthly $5,356–$6,180

- 2,472± SF - 16,911± SF of Class A Office Space available for lease - Centrally located in Downtown Portland, minutes away from Commercial Street - Easily accessible from I-295 exit 7 - Attached parking garage with direct building access - Newly renovated lobby with Class A finishes - Amenities include building security and on-site property management

Suite 400 at 100 Middle St

Suite 400

$28.00/SF/yr MG
Size 4,886 SFAvailable Now≈ Monthly $11,401

Beautiful, newly renovated 4,886± SF suite in Class A office building on highly visible corner in Downtown Portland. Easy access from I-295 via Franklin Arterial and walkable to all the amenities that make Portland’s Old Port so desirable. Rare opportunity for on-site parking adds to the convenience of the location, with a Walk Score of 99. Available suite was renovated in 2023.

The building

Building
195,000 SF · 7 floors · 1987
Site
1.59 Acres · B-3 zoning
Systems
Sprinklered
Occupancy
Multi-tenant
Submarket
Portland-South Portland

Comps

Comparable sales and lease data is available to members only.
EL
Emmett L. Peoples · Porta & Company
Lists 3 of 4 spaces