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For sale
    • Price cut: $300K (8/21)
    $2,950,000

    21 Grove Avenue, Groton, CT 06355

    4beds
    5,686sqft
    : 
    $19,426/mo
    Get pre-qualified
    Single Family Residence
    Built in 2007
    0.95 Acres Lot
    $-- Zestimate®
    $519/sqft
    $-- HOA

    What's special

    En suite bedroomsSix fireplacesImpeccably landscaped groundsRiver accessTwo primary bedrooms
    First time being offered is 21 Grove, an exquisite property located on the bank of the Mystic River, a convenient walk into town. This only 18 years young home is designed to assimilate within its historic neighbors yet is elevated with the superior craftsmanship and modern updates. You'll find a well-conceived floor plan that invites both intimate family living and grand-scale entertaining. Notable features: - Bluestone patio overlooking the river for al fresco dining & relaxing - Impeccably landscaped grounds encompassing nearly one acre - En suite bedrooms that promise privacy and convenience for family and guests alike. -Two primary bedrooms; one conveniently located on the first floor - Six fireplaces that provide warmth and ambiance during New England's colder months. - River access for launching kayaks and paddleboards, when the warmer months arrive. Your positioning couldn't be better with your proximity into town, gorgeous views, easy access via backroads to I-95, and walkability of the scenic River Road to which you are at the very start of. This is quite the rare find to have this level of class & comfort in a home with no work needing to be done and numerous benefits being so close to vibrant downtown Mystic and all it has to offer. Own your own piece of history in one of the most prestigious neighborhoods of Mystic. Home is ready for you to turn the key, enter and stay. Nothing was spared with this truly, turnkey home. Lower level just as appealing as the other floors. Plenty of thoughtfully planned, well appointed space. Architect:Peter Springsteel.
    140 days
    743
    49

    Zillow last checked:

    Listing updated:

    Listed by:

    Heather W. Gianacoplos (860)908-4705,

    Compass Connecticut, LLC 860-572-9099

    Source: Smart MLS,MLS#: 24136440MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 6
      • Full bathrooms: 5
      • 1/2 bathrooms: 1
      Primary bedroom
      • Features: High Ceilings, Vaulted Ceiling(s), Gas Log Fireplace, Full Bath, Whirlpool Tub, Walk-In Closet(s)
      • Level: Main
      Primary bedroom
      • Features: Bedroom Suite, Built-in Features, Gas Log Fireplace, Full Bath, Walk-In Closet(s), Wall/Wall Carpet
      • Level: Upper
      Bedroom
      • Features: Full Bath, Wall/Wall Carpet
      • Level: Upper
      Bedroom
      • Features: Full Bath, Wall/Wall Carpet
      • Level: Upper
      Bathroom
      • Level: Main
      Bathroom
      • Level: Lower
      Dining room
      • Features: High Ceilings, Beamed Ceilings, Gas Log Fireplace, Patio/Terrace, Hardwood Floor
      • Level: Main
      Family room
      • Features: Beamed Ceilings, Bookcases, Built-in Features, Wet Bar, Gas Log Fireplace, Patio/Terrace
      • Level: Lower
      Kitchen
      • Features: High Ceilings, Built-in Features, Dining Area, Eating Space
      • Level: Main
      Living room
      • Features: High Ceilings, Gas Log Fireplace, Hardwood Floor
      • Level: Main
      Office
      • Features: French Doors, Hardwood Floor
      • Level: Main
      Other
      • Features: Studio
      • Level: Lower
      Rec play room
      • Features: Gas Log Fireplace, French Doors, Hardwood Floor
      • Level: Lower
      Heating
      • Forced Air, Oil
      Cooling
      • Central Air
      Appliances
      • Included: Gas Cooktop, Oven/Range, Microwave, Refrigerator, Freezer, Dishwasher, Disposal, Trash Compactor, Washer, Dryer, Water Heater
      • Laundry: Main Level
      Features
      • Sound System
      • Basement: Full,Heated,Finished,Cooled
      • Attic: Pull Down Stairs
      • Number of fireplaces: 6
      Interior area
      • Total structure area: 5,686
      • Total interior livable area: 5,686 sqft
      • Finished area above ground: 4,008
      • Finished area below ground: 1,678
      Video & virtual tour

      Property

      Parking
      • Total spaces: 6
      • Parking features: Attached, Off Street, Driveway, Garage Door Opener, Gravel
      • Attached garage spaces: 3
      • Has uncovered spaces: Yes
      Features
      • Patio & porch: Patio
      • Exterior features: Outdoor Grill, Lighting, Stone Wall, Underground Sprinkler
      • Has view: Yes
      • View description: Water
      • Has water view: Yes
      • Water view: Water
      • Waterfront features: Walk to Water
      Lot
      • Size: 0.95 Acres
      • Features: Level
      Details
      • Parcel number: 2570152
      • Zoning: RS-12

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Cape Cod
      • Property subtype: Single Family Residence
      Materials
      • HardiPlank Type
      • Foundation: Concrete Perimeter
      • Roof: Asphalt
      Condition
      • New construction: No
      • Year built: 2007

      Utilities & green energy

      • Sewer: Public Sewer
      • Water: Public
      • Utilities for property: Cable Available

      Community & HOA

      Community
      • Features: Library, Park, Playground
      • Subdivision: Mystic
      HOA
      • Has HOA: No
      Location
      • Region: Mystic

      Financial & listing details

      • Price per square foot: $519/sqft
      • Tax assessed value: $977,270
      • Annual tax amount: $26,601
      • Date on market: 5/22/2026

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        8/21/2026Price change$2,950,000-9.2%$519/sqft
        Source: Smart MLS #24136440 Report a problem
        5/22/2026Listed for sale$3,250,000$572/sqft
        Source: Smart MLS #24136440 Report a problem
        12/24/2025Listing removed$3,250,000$572/sqft
        Source: Smart MLS #24136440 Report a problem
        10/30/2025Listed for sale$3,250,000$572/sqft
        Source: Smart MLS #24136440 Report a problem

        Public tax history

        Tax history is unavailable.

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 06355

        Getting around

        44 / 100
        Car-Dependent
        47 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • High: Fitch Senior

        Source: Smart MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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