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550 Forest Ave 562 - 3,483 SF of Office Space Available in Portland, ME 04101
Highlights
- The Sanborn Building is a premier destination for office users seeking space near the heart of Portland's commercial corridor.
All Available Spaces(3)
Display Rental Rate as
- Space
- Size
- Term
- Rental Rate
- Space Use
- Build-Out
- Available
- Fully Built-Out as Standard Office
- Space is in Excellent Condition
- Mostly Open Floor Plan Layout
- Fully Built-Out as Standard Office
- Space is in Excellent Condition
- Mostly Open Floor Plan Layout
- 1st Floor, Ste Lower Level
- 562 SF
- Negotiable
- Upon Request Upon Request Upon Request Upon Request
- Office
- -
- 2026-09-05
| Space | Size | Term | Rental Rate | Space Use | Build-Out | Available |
| 1st Floor | 2,121 SF | Negotiable | Upon Request Upon Request Upon Request Upon Request | Office | Full Build-Out | 2026-10-01 |
| 1st Floor, Ste Lower Level | 800 SF | Negotiable | Upon Request Upon Request Upon Request Upon Request | Office | Full Build-Out | Now |
| 1st Floor, Ste Lower Level | 562 SF | Negotiable | Upon Request Upon Request Upon Request Upon Request | Office | - | 2026-09-05 |
1st Floor
| Size |
| 2,121 SF |
| Term |
| Negotiable |
| Rental Rate |
| Upon Request Upon Request Upon Request Upon Request |
| Space Use |
| Office |
| Build-Out |
| Full Build-Out |
| Available |
| 2026-10-01 |
1st Floor, Ste Lower Level
| Size |
| 800 SF |
| Term |
| Negotiable |
| Rental Rate |
| Upon Request Upon Request Upon Request Upon Request |
| Space Use |
| Office |
| Build-Out |
| Full Build-Out |
| Available |
| Now |
1st Floor, Ste Lower Level
| Size |
| 562 SF |
| Term |
| Negotiable |
| Rental Rate |
| Upon Request Upon Request Upon Request Upon Request |
| Space Use |
| Office |
| Build-Out |
| - |
| Available |
| 2026-09-05 |
1st Floor
| Size | 2,121 SF |
| Term | Negotiable |
| Rental Rate | Upon Request |
| Space Use | Office |
| Build-Out | Full Build-Out |
| Available | 2026-10-01 |
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- Space is in Excellent Condition
1 of 3
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View
Street
Map
1st Floor, Ste Lower Level
| Size | 800 SF |
| Term | Negotiable |
| Rental Rate | Upon Request |
| Space Use | Office |
| Build-Out | Full Build-Out |
| Available | Now |
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- Space is in Excellent Condition
Property Overview
We are pleased to offer an 800± SF office suite for lease at the Sanborn Building located at 550 Forest Avenue in Portland. This property is a professionally managed office building with ample on-site parking. Other tenants include Maine Celtics, Maine Camps, Advantage Home Care, and United Way of Greater Portland. The common areas have been renovated recently, and the suite is move-in ready with new carpet, paint, and lighting.
Property Facts
Building Type
Office
Year Built
1956
Building Height
2 Stories
Building Size
25,941 SF
Building Class
B
Typical Floor Size
12,970 SF
Parking
90 Surface Parking Spaces
Select Tenants
- Floor
- Tenant Name
- Industry
- 1st
- Advantage Home Care
- Health Care and Social Assistance
- 1st
- Connected Office Technologies Llc
- Professional, Scientific, and Technical Services
- 2nd
- Daniel P. Foster Tax Preparation
- Professional, Scientific, and Technical Services
- 1st
- Maine Basketball LLC
- Arts, Entertainment, and Recreation
- 2nd
- Maine Summer Camps
- Accommodation and Food Services
- 2nd
- Thriveworks
- Health Care and Social Assistance
- 1st
- Through These Doors
- Health Care and Social Assistance
- 1st
- United Way of Greater Portland
- Services
- 2nd
- Vogel & Dubois
- Professional, Scientific, and Technical Services
1 1
Moderately walkable
60/100
Moderately drivable
70/100
Limited public transit
30/100
Moderately bikeable
70/100
1 of 36
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View
Street
Map
1 of 1
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550 Forest Ave
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