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For sale
    • $1,399,000

    643 Main Street, Harwich, MA 02645

    6beds
    2,872sqft
    : 
    $8,046/mo
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    Single Family Residence
    Built in 1919
    1.43 Acres Lot
    $1,327,100 Zestimate®
    $487/sqft
    $-- HOA

    What's special

    Beautifully landscaped backyardDetached mixed-use garageMultiple sheds
    A rare opportunity in Harwich Center! Set on approximately 1.5 acres, this one-of-a-kind property offers endless possibilities with a main home, a separate ADU with its own private driveway, and a detached mixed-use garage. With a total of 6 bedrooms, it's ideal for multigenerational living, extended family, or guests, while the ADU also provides excellent rental history. The detached garage offers incredible flexibility for a business, workshop, storage, hobby space, or additional rental opportunity, with plenty of room for vehicles, bikes, and tools. Outside, enjoy a beautifully landscaped backyard with multiple sheds ready to become a man cave, she shed, home bar, art studio, or your own private retreat around the fire pit. Properties offering this much space, versatility, and potential rarely come to market in Harwich Center. Don't miss your chance to make this truly unique property yours!
    7 days
    |
    1,589
    |
    46
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Richard J Waystack 508-776-0964,

    Keller Williams Realty

    Source: CCIMLS,MLS#: 22603623MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 6
      • Bathrooms: 3
      • Full bathrooms: 3
      Primary bedroom
      • Description: Flooring: Carpet
      • Features: Closet
      • Level: First
      • Area: 200.07
      • Dimensions: 11.7 x 17.1
      Bedroom 2
      • Description: Flooring: Wood
      • Features: Bedroom 2, Closet
      • Level: Second
      • Area: 156.8
      • Dimensions: 14 x 11.2
      Bedroom 3
      • Description: Flooring: Wood
      • Features: Bedroom 3, Closet
      • Level: Second
      • Area: 114.43
      • Dimensions: 10.3 x 11.11
      Bedroom 4
      • Description: Flooring: Wood
      • Features: Bedroom 4, Closet
      • Level: Second
      • Area: 78.96
      • Dimensions: 9.4 x 8.4
      Dining room
      • Description: Flooring: Carpet
      • Features: Dining Room
      • Level: First
      • Area: 126.36
      • Dimensions: 10.8 x 11.7
      Kitchen
      • Description: Flooring: Wood
      • Features: Kitchen, Upgraded Cabinets, Kitchen Island, Recessed Lighting
      • Level: First
      • Area: 193.05
      • Dimensions: 16.5 x 11.7
      Living room
      • Description: Flooring: Carpet
      • Features: Living Room
      • Level: First
      • Area: 215.76
      • Dimensions: 18.6 x 11.6
      Heating
      • Hot Water
      Cooling
      • Has cooling: Yes
      Appliances
      • Included: Dishwasher, Washer, Refrigerator, Electric Range, Microwave, Electric Dryer, Electric Water Heater
      • Laundry: Laundry Room, First Floor
      Features
      • HU Cable TV, Recessed Lighting
      • Flooring: Wood, Carpet, Tile
      • Basement: Bulkhead Access,Interior Entry,Full
      • Number of fireplaces: 1
      Interior area
      • Total structure area: 2,872
      • Total interior livable area: 2,872 sqft

      Property

      Parking
      • Total spaces: 8
      • Parking features: Garage, Open
      • Garage spaces: 2
      • Has uncovered spaces: Yes
      Features
      • Stories: 2
      • Patio & porch: Patio, Porch
      • Exterior features: Garden
      Lot
      • Size: 1.43 Acres
      • Features: Bike Path, School, Major Highway, House of Worship, Cape Cod Rail Trail, Shopping, In Town Location, Conservation Area, Cleared, Level
      Details
      • Foundation area: 1392
      • Parcel number: HARW M:40 B: L:E40
      • Zoning: R
      • Special conditions: None

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Cape Cod
      • Property subtype: Single Family Residence
      Materials
      • Shingle Siding
      • Foundation: Block
      • Roof: Asphalt
      Condition
      • Approximate
      • New construction: No
      • Year built: 1919

      Utilities & green energy

      • Sewer: Septic Tank

      Community & HOA

      HOA
      • Has HOA: No
      Location
      • Region: Harwich

      Financial & listing details

      • Price per square foot: $487/sqft
      • Tax assessed value: $974,800
      • Annual tax amount: $5,664
      • Date on market: 7/27/2026
      • Cumulative days on market: 8 days
      • Road surface type: Paved

        Estimated market value

        $1,327,100

        $1.26M - $1.39M

        $4,654/mo

        Price history

        DateEventPrice
        7/27/2026Listed for sale$1,399,000+2698%$487/sqft
        Source: MLS PIN #73555500 Report a problem
        7/10/2001Sold$50,000$17/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$5,599 +5.9%$947,300 +8.1%
        2024$5,286 +3.5%$876,600 +14%
        2023$5,107 +1.7%$769,100 +24.2%
        2022$5,020 -1.7%$619,000 +4.2%
        2021$5,108 +0.8%$593,900 +2.3%
        2020$5,067 +3.4%$580,400 +2.7%
        2019$4,901 +5.1%$565,300 +6.7%
        2018$4,663 +3.2%$529,900 +5.2%
        2017$4,520 +2.9%$503,900 +4%
        2016$4,394 $484,400
        Find assessor info on the county website

        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.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: 02645

        Getting around

        43 / 100
        Car-Dependent
        58 / 100
        Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • District: Monomoy

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

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