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    Middlesex County, CT Office Buildings for Sale

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    19 properties
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    Mixed-Use Property with Retail and Offices
    Updated: Jul 1
    Mixed-Use Property with Retail and Offices

    189 Middlesex Avenue, Chester, CT 06412

    $3,675,000
    21,905 sqft 3.02 AC lot
    21,905 SF mixed‑use complex at 189–191 Middlesex Avenue in Chester, CT
    Fully leased with long‑term tenants across retail, office, and residential space
    3.02‑acre lot in a desirable commercial zone (C)
    On‑site parking for tenants and visitors
    Built in 1986; central air; public water and public sewer
    View details
    Historic Office Building with Water Views
    Updated: Dec 18, 2025
    Historic Office Building with Water Views

    31 N Main Street, Essex, CT 06426

    $2,195,000
    12,600 sqft 0.78 AC lot
    Original E.E. Dickinson office building built in 1916
    Floor plan includes 11 offices, a copy/mail room, and 2 lavatories on the main level
    Upper level features 11 offices and 3 lavatories
    Lower level offers 4 private offices, reception, IT room, secure storage, and 2 lavatories
    Connecticut River water views from many offices
    View details
    Multi-Office Commercial Office Building
    Multi-Office Commercial Office Building

    737 Newfield Street, Middletown, CT 06457

    $475,000
    4,956 sqft 0.28 AC lot

    Well-maintained office building with private offices, open workspace, conference rooms, and ample on-site parking.

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    Mixed-Use Retail Office Residential Building
    Mixed-Use Retail Office Residential Building

    189 Middlesex Ave, Chester, CT 06412

    $3,675,000
    21,905 sqft 3.02 AC lot

    Fully leased mixed-use complex combining retail, office, and residential space with ample on-site parking.

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    Historic Office Building with Fireplaces
    Historic Office Building with Fireplaces

    130 E Main Street, Clinton, CT 06413

    $625,000
    3,296 sqft 0.60 AC lot

    Multiple office spaces in a 1735 homestead, with wood floors, fireplaces, street-facing rooms, and ample on-site parking.

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    Historic Office Building on Route 66
    Historic Office Building on Route 66

    8 W High St, East Hampton, CT 06424

    $685,000
    2,300 sqft 1.06 AC lot

    Turnkey office building with historic charm and expansion potential.

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    Mixed-Use Commercial Building
    Mixed-Use Commercial Building

    423 Main St, Middletown, CT 06457

    $4,500,000
    39,000 sqft

    Commercial building on Main Street featuring renovated improvements and a flexible, multi-tenant layout.

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    Mixed-Use Commercial Building
    Mixed-Use Commercial Building

    423 Main Street, Middletown, CT 06457

    $4,500,000
    39,000 sqft

    Downtown Middletown mixed-use building with renovated historic character and flexible space for owner-users and tenants.

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    Turnkey Office Building with Corner Access
    Turnkey Office Building with Corner Access

    9 W High St, East Hampton, CT 06424

    $685,000
    2,306 sqft

    Turnkey office space with modern updates and historic character, with occupancy relocation planned for business continuity.

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    Historic Office Building Near Hospital
    Historic Office Building Near Hospital

    103 S Main St, Middletown, CT

    $650,000
    4,455 sqft 0.37 AC lot

    Early 19th-century office conversion near Middlesex Hospital.

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    Professional Office Building For Sale
    Professional Office Building For Sale

    344 N Main St, Marlborough, CT 06447

    $799,000
    7,874 sqft 0.92 AC lot

    Two-story office building with 7,874 SF on 0.92 acres.

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    Professional Office Building
    Professional Office Building

    344 North Main Street, Marlborough, CT 06447

    Contact for pricing
    8,000 sqft

    Well-maintained 8,000-square-foot office building with ample on-site parking and flexible floor plan options.

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    Commercial Office Building For Sale
    Commercial Office Building For Sale

    737 Newfield Street, Middletown, CT 06457

    $475,000
    4,956 sqft

    Well-maintained office building in a visible, accessible Middletown location.

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    Middletown Office Building with Kitchen
    Middletown Office Building with Kitchen

    33 Pleasant St, Middletown, CT

    $1,100,000
    21,587 sqft 0.49 AC lot

    21,587 SF office building with commercial kitchen for sale.

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    ADA Compliant Office Building
    ADA Compliant Office Building

    192 Westbrook Rd, Essex, CT 06409

    $2,450,000
    15,316 sqft

    Well-equipped office facility with ADA compliance, sprinklers, and efficient power for flexible professional or medical use.

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    Historic Office Building in Essex
    Historic Office Building in Essex

    31 N Main St, Essex, CT 06426

    $2,195,000

    Original 1916 E.E. Dickinson office building with water views.

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    Westbrook Office Campus For Sale
    Westbrook Office Campus For Sale

    36 Westbrook Place, Westbrook, CT 06498

    $1,875,000
    13,456 sqft 1.58 AC lot

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

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    Westbrook Office Building For Sale
    Westbrook Office Building For Sale

    70 Essex Road West Building, Westbrook, CT 06498

    $495,000
    4,974 sqft 0.50 AC lot

    Well-maintained office building in a prime downtown location.

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    Historic Office Building on Route 1
    Historic Office Building on Route 1

    130 E Main Street, Clinton, CT 06413

    $625,000
    3,296 sqft 0.60 AC lot

    Versatile commercial property with historic charm and convenient location.

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    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 19 Active Listings in Middlesex County, CT, we suggest to view alternatives - similar 40 Off-Market properties to explore as potential leads.

    Off-Market Properties in Middlesex County, CT

    Consider similar Off-Market properties in Middlesex County, CT. 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.

    235 Rte 80
    OFFICE BUILDING

    235 Rte 80, Killingworth, CT 06419-1468

    Value Estimation by Request
    1,264 sqft 1.00 AC lot
    View details
    1572 Saybrook Rd
    OFFICE BUILDING

    1572 Saybrook Rd, Haddam, CT 06438-1318

    Value Estimation by Request
    3,036 sqft 1.13 AC lot
    View details
    98 Brg Rd
    OFFICE BUILDING

    98 Brg Rd, Haddam, CT 06438-1357

    Value Estimation by Request
    1,784 sqft 0.46 AC lot
    View details
    1565 Saybrook Rd
    OFFICE BUILDING

    1565 Saybrook Rd, Haddam, CT 06438-1321

    Value Estimation by Request
    3,378 sqft 0.56 AC lot
    View details
    86 Main St
    OFFICE BUILDING

    86 Main St, Chester, CT 06412-1340

    $1,005,000
    Estimated value
    5,799 sqft 1.15 AC lot
    View details

    Middlesex County, CT Office Buildings Market Trends and Statistics

    Explore 59 office buildings for sale in Middlesex County, CT, showcased through 19 active listings on our real estate platform. These investment opportunities span a total of 223,182 square feet of properties for sale, with an estimated market value of $29,484,000.

    Sale prices for office properties in Middlesex County, CT start at $475,000, averaging $1,734,352, and reaching up to $4,500,000 — 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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