Photo of 311 Darling Ave
Class B Office · General · Atlantic Office Park

311 Darling Ave

South Portland, ME 04106

Available spaces

5 for lease · asking rates · updated Oct 5, 2026

No photos yet

Suite Building A, Suite 16

$17.00/SF/yr NNN
Size 1,089 SFAvailable Now≈ Monthly $1,543

Office suites available for lease in one of Maine’s premier suburban office parks. Recently under new ownership, completed owner-funded improvements include new sidewalks, landscaping, new signage, repaved parking area, upgraded exterior and security lighting, replacement of roof top air conditioning units, roof repairs, electric vehicle charging stations, and updated interior common areas. Located near the Maine Mall and easily accessible from I-295 and the Maine Turnpike with close proximity to Portland Jetport, Downtown Portland. 1,089± SF - 2,895± SF office space available for lease. Offering $25.00/SF TI Allowance Professionally-managed property. Convenient, free, on-site parking (5.00 per 1,000 SF). Lease Rate: $17.00/SF NNN

No photos yet

Suite Building B, Suite 40

$17.00/SF/yr NNN
Size 2,407 SFAvailable Now≈ Monthly $3,410

Office suites available for lease in one of Maine’s premier suburban office parks. Recently under new ownership, completed owner-funded improvements include new sidewalks, landscaping, new signage, repaved parking area, upgraded exterior and security lighting, replacement of roof top air conditioning units, roof repairs, electric vehicle charging stations, and updated interior common areas. Located near the Maine Mall and easily accessible from I-295 and the Maine Turnpike with close proximity to Portland Jetport, Downtown Portland. 1,089± SF - 2,895± SF office space available for lease. Offering $25.00/SF TI Allowance Professionally-managed property. Convenient, free, on-site parking (5.00 per 1,000 SF). Lease Rate: $17.00/SF NNN

No photos yet

Suite Building C, Suite 75

$17.00/SF/yr NNN
Size 2,895 SFAvailable Now≈ Monthly $4,101

Office suites available for lease in one of Maine’s premier suburban office parks. Recently under new ownership, completed owner-funded improvements include new sidewalks, landscaping, new signage, repaved parking area, upgraded exterior and security lighting, replacement of roof top air conditioning units, roof repairs, electric vehicle charging stations, and updated interior common areas. Located near the Maine Mall and easily accessible from I-295 and the Maine Turnpike with close proximity to Portland Jetport, Downtown Portland. 1,089± SF - 2,895± SF office space available for lease. Offering $25.00/SF TI Allowance Professionally-managed property. Convenient, free, on-site parking (5.00 per 1,000 SF). Lease Rate: $17.00/SF NNN

Suite B48 at 311 Darling Ave

Suite B48

Sublease$16.00/SF/yr NNN
Size 2,700 SFAvailable Now≈ Monthly $3,600

Direct access from parking lot with building signage visible from Darling Ave. Move-in ready suite featuring a reception area, two (2) conference rooms, six (6) private offices, a large kitchenette, and open working space. Professionally managed property with on-site parking included in the rental rate. Sublease Term: March 31, 2030.

No photos yet

Suite Building A, Suite 13

$17.00/SF/yr NNN
Size 2,242 SFAvailable Now≈ Monthly $3,176

Office suites available for lease in one of Maine’s premier suburban office parks. Recently under new ownership, completed owner-funded improvements include new sidewalks, landscaping, new signage, repaved parking area, upgraded exterior and security lighting, replacement of roof top air conditioning units, roof repairs, electric vehicle charging stations, and updated interior common areas. Located near the Maine Mall and easily accessible from I-295 and the Maine Turnpike with close proximity to Portland Jetport, Downtown Portland. 1,089± SF - 2,895± SF office space available for lease. Offering $25.00/SF TI Allowance Professionally-managed property. Convenient, free, on-site parking (5.00 per 1,000 SF).

The building

Building
72,308 SF · 1 floor · 1979
Site
8.58 Acres · CCR zoning
Systems
Gas
Occupancy
Multi-tenant
Submarket
Portland-South Portland

Comps

Comparable sales and lease data is available to members only.
CR
Claire Richardson · The Boulos Company
Lists 4 of 5 spaces