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    Portland, ME
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    Portland, ME Office Units for Sale

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    Cape Elizabeth, ME South Portland, ME New Portland, ME Falmouth, ME Scarborough, ME Chebeague Island, ME Westbrook, ME Gorham, ME
    11 properties
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    Flex Building with Overhead Door
    Updated: Nov 25, 2025
    Flex Building with Overhead Door

    892 Riverside Street, Portland, ME 04103

    $695,000
    4,610 sqft 0.34 AC lot
    4,610± SF flex building on 0.34± acres with office and warehouse space plus an overhead door
    Office layout includes 5–7 private offices, reception area, and kitchenette
    Warehouse has clear‑span space 80' deep and 37' wide with an 8' x 8' overhead door
    On‑site paved parking included
    Year built: 1922; office portion was likely a residence before the warehouse addition
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    This listing looks promising.

    Here's a quick look at some key insights for

    892 Riverside Street, Portland, ME 04103

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    • Est. Cap Rate

      8.2%
      Above avg (5.9%)

    • Est. NOI

      $57K
      Annual

    • Price @ 7% Cap

      $818K
      Above asking
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    Flex Warehouse with Office Space
    Updated: Jul 24
    Flex Warehouse with Office Space

    480 Riverside Street, Portland, ME 04103

    $1,500,000
    6,020 sqft 1.46 AC lot
    Built in 1986
    Roof type: membrane
    Includes office space, a conference room, kitchen, warehouse space, and utility room
    Includes server room plus mezzanine area
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    Renovated Office Building with Parking
    Renovated Office Building with Parking

    522 Washington Avenue, Portland, ME 04103

    $590,000
    3,170 sqft 0.16 AC lot

    Renovated in 2016 with flexible office space, partially leased, plus on-site parking and basement storage.

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    Corner Lot Office Building
    Corner Lot Office Building

    499 Stevens Avenue, Portland, ME 04103

    $575,000
    2,545 sqft 0.15 AC lot

    Office building configured as six suites, with five tenants in place, plus on-site parking and an accessible entry ramp.

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    Renovated Office Building
    Renovated Office Building

    522 Washington Avenue, Portland, ME 04103

    $625,000
    3,170 sqft

    Fully renovated office building with flexible space, on-site parking, and access to I-295 and downtown Portland.

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    Office Warehouse Flex Building
    Office Warehouse Flex Building

    480 Riverside Street, Portland, ME 04103

    $1,500,000
    6,020 sqft

    Vacant office and warehouse property with an 8x8 drive-in door, office amenities, and 24 parking spaces.

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    Corner Multi-Suite Office Building
    Corner Multi-Suite Office Building

    499 Stevens Ave, Portland, ME 04103

    Contact for pricing
    2,545 sqft

    A corner-lot office building with six suites, on-site parking, and a wheelchair ramp for accessible entry.

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    Portland Office Condo For Sale
    Portland Office Condo For Sale

    527 Ocean Ave, Portland, ME

    Contact for pricing
    2,786 sqft 1.00 AC lot

    2,786± SF office condo with ample parking.

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    Mixed-Use Retail and Office Building
    Mixed-Use Retail and Office Building

    35 Danforth St, Portland, ME 04101

    Contact for pricing
    7,230 sqft

    Mixed-use building with first-floor retail/flex and upper-level office and apartment space, plus off-street parking for 10+ vehicles.

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    Updated Office Space Near I-95
    Updated Office Space Near I-95

    352 Warren Ave, Portland, ME 04103

    Contact for pricing
    2,350 sqft 0.94 AC lot

    Office condos with recent updates, natural light, and easy access.

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    Interior-Renovated Flex Warehouse
    Interior-Renovated Flex Warehouse

    43 Northport Dr, Portland, ME 04103

    Contact for pricing
    26,784 sqft

    Renovated commercial condo with HVAC and electrical upgrades plus a private shipping and receiving warehouse area.

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    Based on your search, we've compiled 31 Potential Opportunities for your consideration. Besides 11 Active listings in Portland, ME, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 16 Off-Market properties to explore as potential leads

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Mixed-Use Office and Apartment
    Mixed-Use Office and Apartment

    854 Broadway, South Portland, ME 04106

    $550,000
    0.23 AC lot

    Mixed-use building with multiple office suites, shared bathroom access, and a 1-bedroom apartment with two egresses.

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    Automotive Service Building with Bays
    Automotive Service Building with Bays

    474 Main Street, Westbrook, ME 04092

    $500,000
    1,269 sqft 0.22 AC lot

    Commercial building with small office area and two garage bays, plus operational vehicle lifts and an air-compressor.

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    Auto Shop Redevelopment Site
    Auto Shop Redevelopment Site

    474 Main Street, Westbrook, ME 04092

    $500,000
    0.22 AC lot

    Commercial site with a building, small office area, and two overhead-door garage bays on a 0.22-acre parcel.

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    Office Condominium with Basement
    Office Condominium with Basement

    25 Long Creek Dr, South Portland, ME 04106

    Contact for pricing
    4,530 sqft

    Well-maintained office condo offering office space plus a daylight basement suited for administrative or professional uses.

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    Off-Market Properties in Portland, ME

    Consider similar Off-Market properties in Portland, ME. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    629 Forest Ave
    Office Units

    629 Forest Ave, Portland, ME 04101

    Value Estimation by Request
    10,853 sqft
    View details
    1053 Forest Ave
    Office Units

    1053 Forest Ave, Portland, ME 04103

    Value Estimation by Request
    12,516 sqft
    View details
    1023 Washington Ave
    Medical Office Space

    1023 Washington Ave, Portland, ME 04103

    Value Estimation by Request
    3,706 sqft 0.34 AC lot
    View details
    75 Washington Ave
    Office Units

    75 Washington Ave, Portland, ME 04101

    Value Estimation by Request
    132,430 sqft 0.60 AC lot
    View details
    3 Spring St
    Office Units

    3 Spring St, Portland, ME 04101

    Value Estimation by Request
    21,090 sqft
    View details
    Thompsons Pt
    Medical Office Space

    0 Thompsons Pt, Portland, ME 04102

    Value Estimation by Request
    60,410 sqft
    View details
    12 Mountfort St
    Office Units

    12 Mountfort St, Portland, ME 04101

    Value Estimation by Request
    160,000 sqft
    View details
    352 Warren Ave
    Office Units

    352 Warren Ave, Portland, ME 04103

    Value Estimation by Request
    27,052 sqft
    View details
    151 Middle St
    Medical Office Space

    151 Middle St, Portland, ME 04101

    Value Estimation by Request
    54,400 sqft
    View details
    4 Canal Plz
    Office Units

    4 Canal Plz, Portland, ME 04101

    Value Estimation by Request
    26,901 sqft
    View details
    1037 Forest Ave
    Office Units

    1037 Forest Ave, Portland, ME 04103

    Value Estimation by Request
    44,919 sqft 5.37 AC lot
    View details
    400 Congress St
    Office Units

    400 Congress St, Portland, ME 04101

    Value Estimation by Request
    View details
    144 State St
    Restaurants

    144 State St, Portland, ME 04101

    Value Estimation by Request
    98,309 sqft 1.63 AC lot
    View details

    Portland, ME Office Units Market Trends and Statistics

    Explore 27 office units for sale in Portland, ME, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 67,230 square feet of properties for sale, with an estimated market value of $5,485,000.

    Sale prices for office units in Portland, ME start at $575,000, averaging $914,166, and reaching up to $1,500,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 111
    Office buildings 47
    Medical Office Space 4
    Coworking space 3
    Serviced offices 2

    Demographics Overview

    Population 119K
    Population Growth (5Y) +15.6%
    Median Household Income $93,177
    College Educated 60.2%

    High-Yield Neighborhoods for Investment

    Identify Portland submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    04103 $756.9K
    04101 $1.1M

    Taxes & Financing

    Tax Rate (average for all types) 1.44%
    Property Tax per SF $9.35 per SF
    Tax Rate vs County Average 0.08 pp below county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Cumberland County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in Cumberland County

    Retail

    Residential Income

    Property Size Breakdown

    The majority of commercial real estate listings in Portland fall within the 10,000 to 25,000 square foot range.

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