550 Washington Ave., Portland, ME 04103

Building Details

Architectural style

Other

Listing agent Richard Keenan Show Phone

Listing office Keenan Auction Company, Inc. 2063 Congress St, South Portland, ME Show Phone

Listing date Jun 25, 2026

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MLS# 11852521 Listing URL

Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

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Overview

This mixed-use property is a 1-2 story complex totaling approximately 9,045+/- SF. The building includes retail space along Washington Ave., an office space on the upper level, and open warehouse/commercial space to the rear and side. On-site features include heat/AC roof-mounted unit(s), a dock-height overhead door, and 3-phase 400 amp power. The site also provides 10-11 paved parking spots, supporting both customer and employee access.

The property is a corner site with exposure and access to Washington Ave. and Randall Street. It is located just off Exits 8 & 9 of I-295 in Portland, Maine. Buyer materials reference Portland Tax Map 166, Block F, Lot 3.

For tenants or owner-operators, the combination of street-level retail, an upper office component, and flexible rear/side warehouse or commercial space can support multiple operating models within a single building. The existing loading capability and three-phase electrical service may be useful for back-of-house or light industrial requirements. The property is offered for sale via real estate foreclosure auction with preview and on-premises auction timing noted in the public remarks.

Suggested Use

Real Estate Agency Law Firm Restaurant Spa & Massage Center Hair Salon Nail Salon Gym & Fitness Center Daycare Center Building Supply Accounting Firm

Zoning and permitted uses should be independently verified with local authorities.

Location Insight

• Map
• Local Demand

City

Portland

County

Cumberland

State

Maine

Longitude

-70.259335

Latitude

43.680879

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FAQs

What type of property is this?

Flex space - Mixed-use building with retail along Washington Ave., upper-level office space, and rear/side warehouse areas.

Where is this flex space located?

The property is located at 550 Washington Ave. Portland, ME.

What is the asking price?

The asking price for this property is $1,069,500.

What are key features of this property?

This property features: 9,045+/-SF mixed‑use building with commercial/retail, residential, and office space at 550 Washington Ave., Portland, ME; B2 Community Business Zone; corner site with access and exposure to Washington Ave. and Randall Street; Layout includes retail along Washington Ave., office on the upper level, and open warehouse/commercial space to the rear and side