Old Port Square · Portland

Available spaces

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

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Suite 600

600th floor · Office$29.00/SF/yr MG

Size 14,160 SFAvailable Now≈ Monthly $34,220

14,160-42,475+/- SF of Class A office space for sub-lease in Canal Plaza, floors 5-7 Prominent downtown location between Middle and Fore Street Large windows offer impressive 180 degree views of Casco Bay and bring ample natural light into the space Parking available in Fore Street garage Lease Rate : $29.00/sf Modified Gross - 14,160-42,475± SF of Class A office space for sub-lease in Canal Plaza, floors 5-7 - Prominent downtown location between Middle and Fore Street - Large windows offer impressive 180 degree views of Casco Bay and bring ample natural light into the space - Parking available in Fore Street garage - Lease Rate: $29.00/SF MG

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Suite 500

5th floor · Office$29.00/SF/yr MG

Size 14,160 SFAvailable Now≈ Monthly $34,220

14,160-42,475+/- SF of Class A office space for sub-lease in Canal Plaza, floors 5-7 Prominent downtown location between Middle and Fore Street Large windows offer impressive 180 degree views of Casco Bay and bring ample natural light into the space Parking available in Fore Street garage Lease Rate : $29.00/sf Modified Gross

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Suite 700

7th floor · Office$29.00/SF/yr MG

Size 14,160 SFAvailable Now≈ Monthly $34,220

14,160-42,475+/- SF of Class A office space for sub-lease in Canal Plaza, floors 5-7 Prominent downtown location between Middle and Fore Street Large windows offer impressive 180 degree views of Casco Bay and bring ample natural light into the space Parking available in Fore Street garage Lease Rate : $29.00/sf Modified Gross

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The building

Building: 156,440 SF · 10 floors
Site: 0.56 Acres · B zoning
Occupancy: Multi-tenant
Submarket: Portland-South Portland

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