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    Southport, CT Commercial Real Estate for Sale

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    Fairfield, CT Westport, CT Bridgeport, CT
    Southport Office Space For Rent
    Contact for pricing
    3,750 SF
    Southport Office Space For Rent

    135 Rennell Dr, Southport, CT

    Prestigious Southport office space with unique architect-designed interior.
    • Prestigious Southport address, conveniently located near the train station and Exit 19.
    • Unique architect‑designed interior, owner‑occupied and immaculately maintained.
    • Bright and airy open workspace with cathedral ceiling plus 11 private offices with windows.
    • Elevator access to the 3rd floor.
    • Executive conference room.
    Updated: Nov 12, 2025
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    Southport Office Building For Sale
    Contact for pricing
    Southport Office Building For Sale

    3530 Post Road, Southport, CT 6490

    Office building available for purchase in Southport, Connecticut.
    • Office building available for purchase.
    • Located in Southport, Connecticut.
    • Year Built: 2026
    • Additional Property Details: YearBuilt: 2026
    • Description: Office building available for purchase in Southport, Connecticut.
    Updated: Mar 31
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    Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 2 Active listings in Southport, CT, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 70 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.

    Fairfield Specialty Property For Sale
    $25,000,000
    11.12 Acres
    Fairfield Specialty Property For Sale

    Specialty property available for sale in Fairfield, Connecticut.

    1131 Sasco Hill Rd, Fairfield, CT 6824

    View details
    Versatile Westport Commercial Building For Sale
    $1,999,000
    9,771 SF
    Versatile Westport Commercial Building For Sale

    Adaptable commercial building suitable for office, medical, or creative uses.

    1698 Post Rd E, Westport, CT 6880

    View details
    Westport Retail Property for Sale
    $6,400,000
    11,437 SF
    Westport Retail Property for Sale

    Retail property available for purchase in Westport, Connecticut.

    1550-1560 Post Rd E, Westport, CT

    View details
    Fairfield Light Industrial Land
    $995,000
    0.44 Acres
    Fairfield Light Industrial Land

    Rare Fairfield light industrial property for sale with I-95 access.

    46 Linwood Ave, Fairfield, CT

    View details

    Off-Market Properties in Southport, CT

    Consider similar Off-Market properties in Southport, 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.

    329 Pequot Ave
    COMMERCIAL CONDOMINUIM
    2,909 SF
    Value Estimation by Request

    329 Pequot Ave, Southport, CT 06890-1346

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    327 Pequot Ave
    COMMERCIAL CONDOMINUIM
    764 SF
    Value Estimation by Request

    327 Pequot Ave, Southport, CT 06890

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    250 Pequot Ave
    SHOW ROOM, WAREHOUSE
    10,093 SF Lot: 1.13 Acres
    Estimated value
    $1,260,000

    250 Pequot Ave, Southport, CT 06890-1387

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    393 Pequot Ave
    SHOW ROOM, WAREHOUSE
    750 SF Lot: 0.11 Acres
    Estimated value
    $875,000

    393 Pequot Ave, Southport, CT 06890-1346

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    8 John St
    COMMERCIAL (GENERAL)
    Lot: 0.27 Acres
    Estimated value
    $1,440,000

    8 John St, Southport, CT 06890-1437

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    3280 Post Rd
    SHOW ROOM, WAREHOUSE
    4,656 SF Lot: 0.33 Acres
    Value Estimation by Request

    3280 Post Rd, Southport, CT 06890-1363

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    409 Pequot Ave
    SHOW ROOM, WAREHOUSE
    3,885 SF Lot: 0.19 Acres
    Estimated value
    $1,800,000

    409 Pequot Ave, Southport, CT 06890

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    95 Hbr Rd
    SHOW ROOM, WAREHOUSE
    7,174 SF Lot: 0.21 Acres
    Estimated value
    $2,695,000

    95 Hbr Rd, Southport, CT 06890-3306

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    3611 Post Rd
    SHOW ROOM, WAREHOUSE
    6,180 SF Lot: 0.48 Acres
    Estimated value
    $2,080,000

    3611 Post Rd, Southport, CT 06890-1113

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    95 Old Post Rd
    SHOW ROOM, WAREHOUSE
    2,400 SF Lot: 0.41 Acres
    Estimated value
    $1,390,000

    95 Old Post Rd, Southport, CT 06890-1301

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    105 Woodrow Ave
    SHOW ROOM, WAREHOUSE
    5,262 SF Lot: 0.22 Acres
    Estimated value
    $975,000

    105 Woodrow Ave, Southport, CT 06890-1121

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    181 Old Post Rd
    SHOW ROOM, WAREHOUSE
    4,690 SF Lot: 0.29 Acres
    Estimated value
    $1,495,000

    181 Old Post Rd, Southport, CT 06890-1353

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    3350 Post Rd
    SHOW ROOM, WAREHOUSE
    3,735 SF Lot: 0.55 Acres
    Estimated value
    $905,000

    3350 Post Rd, Southport, CT 06890-1383

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    136 John St
    SHOW ROOM, WAREHOUSE
    2,520 SF Lot: 0.23 Acres
    Value Estimation by Request

    136 John St, Southport, CT 06890-4100

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    167 Old Post Rd
    SHOW ROOM, WAREHOUSE
    5,067 SF Lot: 0.60 Acres
    Estimated value
    $1,730,000

    167 Old Post Rd, Southport, CT 06890-1395

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    49 John St
    COMMERCIAL (GENERAL)
    Lot: 0.41 Acres
    Value Estimation by Request

    49 John St, Southport, CT 06890-1484

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    402 Pequot Ave
    SHOW ROOM, WAREHOUSE
    4,334 SF Lot: 0.37 Acres
    Estimated value
    $935,000

    402 Pequot Ave, Southport, CT 06890-9992

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    2507 Post Rd
    COMMERCIAL (GENERAL)
    21,970 SF Lot: 0.73 Acres
    Estimated value
    $2,300,000

    2507 Post Rd, Southport, CT 06890-1259

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    930 Ml Hl Ter
    SHOW ROOM, WAREHOUSE
    45,571 SF Lot: 13.30 Acres
    Estimated value
    $2,765,000

    930 Ml Hl Ter, Southport, CT 06890-1265

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    2537 Post Rd
    COMMERCIAL (GENERAL)
    Lot: 0.30 Acres
    Value Estimation by Request

    2537 Post Rd, Southport, CT 06890-1242

    View details
    3546 Post Rd
    SHOW ROOM, WAREHOUSE
    2,494 SF Lot: 0.09 Acres
    Value Estimation by Request

    3546 Post Rd, Southport, CT 06890-1112

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    368 Ctr St
    SHOW ROOM, WAREHOUSE
    9,630 SF Lot: 0.98 Acres
    Estimated value
    $1,455,000

    368 Ctr St, Southport, CT 06890-1462

    View details

    Southport, CT Commercial Real Estate Investment Opportunities Market Analysis

    Explore 72 commercial real estate for sale in Southport, CT on our real estate platform. These investment opportunities span a total of 3,750 square feet of properties for sale, with an estimated market value of $0.00.

    Sale prices for business properties in Southport, CT start at $0.00, averaging $0.00, and reaching up to $0.00 — 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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    Demographics Overview

    Population 4,566
    Population Growth (5Y) +5.9%
    Median Household Income $214,523

    Taxes & Financing

    Tax Rate (average for all types) 2.75%
    Property Tax per SF $28.40 per SF
    Tax Rate vs County Average 0.32 pp above county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Fairfield County

    New Delisted

    Total CRE Inventory on Market (SF)

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