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    Middlesex County, CT Office Properties & Spaces for Sale

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    New Haven, CT Waterbury, CT Hartford, CT
    53 results
    East Haddam Commercial Opportunity
    $675,000
    3,418 SF

    East Haddam Commercial Opportunity

    5 Norwich Road, East Haddam, CT 06423

    Established wine & spirits business with growth potential.

    • Turnkey wine & spirits business in East Haddam Village with strong visibility and immediate income potential.
    • Significant value‑add potential in upper levels for apartments, office space, short‑term rentals, or business expansion.
    • Prime location near Goodspeed Opera House, Gelston House, state parks, and popular event venues, ensuring steady traffic.
    • Beautifully built‑out retail space with custom wood shelving, white birch accents, and exposed beams.
    • Original features including wide‑board hardwood floors, exposed brick, and a barrel ceiling.
    Updated: Apr 3
    View details
    Historic Office Building in Essex
    $2,195,000
    12,600 SF

    Historic Office Building in Essex

    31 N Main Street, Essex, CT 06426

    Original 1916 office building with Connecticut River views.

    • Historic E.E. Dickinson office building with original 1916 finishes.
    • Enjoy water views of the Connecticut River.
    • Prime location: walking distance to Essex Village restaurants, marinas, and galleries.
    • Multiple offices: 11 on the main level and 11 on the upper level.
    • Lower level features 4 private offices, reception area, IT room, and secure storage.
    Updated: Dec 18, 2025
    View details
    Two-Unit Commercial Office Space
    $225,000
    2,400 SF

    Two-Unit Commercial Office Space

    Two-unit commercial office space for sale in Old Saybrook, CT.

    123 Elm Street unit: 13 & 14, Old Saybrook, CT 06475
    View details
    Unique Mixed-Use Property in East Haddam
    $450,000
    3,708 SF

    Unique Mixed-Use Property in East Haddam

    Charming mixed-use property with retail space and income potential.

    5 Norwich Road, East Haddam, CT 06423
    View details
    Mixed-Use Property with Two Apartments
    $829,000
    7,309 SF

    Mixed-Use Property with Two Apartments

    Mixed-use property with apartments and flex space in Essex, CT.

    33 Deep River Road, Essex, CT 06409
    View details
    Charming Building in Old Saybrook
    $549,000
    960 SF

    Charming Building in Old Saybrook

    Office or retail building with tenant in place until 2030.

    1029 Boston Post Road, Old Saybrook, CT 06475
    View details
    Durham Commercial Property on Route 17
    $1,300,000
    2,256 SF

    Durham Commercial Property on Route 17

    Freestanding commercial property with high visibility and renovation potential.

    980 New Haven Road, Durham, CT 06422
    View details
    Historic Office Building on Route 1
    $625,000
    3,296 SF

    Historic Office Building on Route 1

    Versatile commercial property with historic charm and convenient location.

    130 E Main Street, Clinton, CT 6413
    View details
    Westbrook Office Building For Sale
    $495,000
    4,974 SF

    Westbrook Office Building For Sale

    Well-maintained office building in a prime downtown location.

    70 Essex Road West Building, Westbrook, CT 6498
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    Charming Building in Old Saybrook
    $549,000

    Charming Building in Old Saybrook

    Office or retail building with deeded river access.

    1029 Boston Post Rd, Old Saybrook, CT 6475
    View details
    Mixed-Use Investment in Chester, CT
    $4,200,000
    21,905 SF

    Mixed-Use Investment in Chester, CT

    Fully leased mixed-use property with retail, office, and residential spaces.

    189 Middlesex Avenue, Chester, CT 06412
    View details
    East Hampton Office Building on Route 66
    $685,000
    2,306 SF

    East Hampton Office Building on Route 66

    Turnkey 2,300 SF office building on 1.06 acres.

    8 West High Street, East Hampton, CT 6424
    View details
    Adaptable Commercial Space on Newfield Street
    $699,609
    2,028 SF

    Adaptable Commercial Space on Newfield Street

    Versatile commercial property with high visibility and flexible usage options.

    609 Newfield Street, Middletown, CT 6457
    View details
    Historic Mixed-Use Property in Essex
    $1,300,000
    2,760 SF

    Historic Mixed-Use Property in Essex

    Reimagined John Miner House in the heart of Essex Village.

    11 N Main Street, Essex, CT 06426
    View details
    Historic Essex Mixed-Use Property
    $1,300,000
    3,036 SF

    Historic Essex Mixed-Use Property

    Reimagined John Miner House in the heart of Essex.

    11 N Main Street, Essex, CT 06426
    View details
    Profitable Medical/Office Investment Opportunity
    $1,800,000
    8,390 SF

    Profitable Medical/Office Investment Opportunity

    Meticulously maintained medical/office properties with immediate cash flow.

    51-57 South Main Street, Middletown, CT 6457
    View details
    Westbrook Office Campus For Sale
    $1,875,000
    13,456 SF

    Westbrook Office Campus For Sale

    Highly visible office campus in Westbrook's Central Business District.

    36 Westbrook Place, Westbrook, CT 6498
    View details
    Medical Office Building For Sale
    $1,500,000
    11,602 SF

    Medical Office Building For Sale

    Purpose-built medical office building with income potential.

    30 Country Squire Drive, Cromwell, CT 6416
    View details
    Versatile Commercial Property in Portland
    $750,000
    3,024 SF

    Versatile Commercial Property in Portland

    9.5-acre commercial property with two buildings and high visibility.

    455 Portland Cobalt Road, Portland, CT 6480
    View details
    Industrial Building with Heavy Industrial Zoning
    $700,000
    14,210 SF

    Industrial Building with Heavy Industrial Zoning

    14,210 SF industrial building on 2.2 acres near I-91.

    18 Airline Road, Durham, CT 6422
    View details
    Prime Commercial Property For Sale
    $1,600,000
    10,000 SF

    Prime Commercial Property For Sale

    10,000 sq ft commercial property with income and potential.

    13 North Main Street, East Hampton, CT 6424
    View details
    Historic Office Building Near Hospital
    $650,000
    4,455 SF

    Historic Office Building Near Hospital

    Early 19th-century office conversion near Middlesex Hospital.

    103 S Main St, Middletown, CT
    View details
    Essex Commercial Property For Sale
    $2,450,000
    15,316 SF

    Essex Commercial Property For Sale

    Highly visible commercial property suitable for multiple uses.

    192 Westbrook Road, Essex, CT 06409
    View details
    Profitable Medical/Office Investment Opportunity
    $1,800,000
    8,390 SF

    Profitable Medical/Office Investment Opportunity

    Meticulously maintained medical/office properties with immediate cash flow.

    51 S Main St, Middletown, CT 6457
    View details

    Middlesex County, CT Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 53 office properties & spaces for sale in Middlesex County, CT, showcased through 53 active listings on our real estate platform. These investment opportunities span a total of 4,798,615 square feet of properties for sale, with an estimated market value of $35,473,000.

    Sale prices for office spaces in Middlesex County, CT start at $120,000, averaging $611,603, and reaching up to $4,380,000 — 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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