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    Southport, CT Office Units 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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    Based on your search, we've compiled 5 Potential Opportunities for your consideration. Besides 1 Active listings in Southport, CT, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

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

    Historic Office Property in Westport
    $1,750,000
    2,599 SF
    Historic Office Property in Westport

    Historic office building in downtown Westport with multiple tenants.

    61 Jesup Road, Westport, CT 6880

    View details
    Renovated Main-Level Office Suite
    Contact for pricing
    700 SF
    Renovated Main-Level Office Suite

    Renovated three-room suite with parking access, private bath, and flexible space for professional and medical use.

    1515 Black Rock Turnpike Unit 1, Fairfield, CT 6825

    View details
    Renovated 3-Room Office Suite
    Contact for pricing
    700 SF
    Renovated 3-Room Office Suite

    Renovated suite with main-level, no-stairs access and a private bath, positioned for professional and medical office use.

    1511 Black Rock Tpke, Fairfield, CT 6825

    View details
    Retail Building on Busy Corner
    $3,995,000
    8,000 SF
    Retail Building on Busy Corner

    8,000+/- SF retail building with high visibility and ample parking.

    1505 Post Rd E, Westport, CT 6880

    View details

    Southport, CT Office Units Investment Opportunities Market Analysis

    Explore 1 office units 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 office units 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 2
    Office buildings 1

    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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