643 Main Street
Harwich, MA, 02645 $ 1,299,000
Bedrooms6 Baths3.0 Sq 2,872 Monthly Estimate*
$ 8,972
for $1,299,000 with 6 bedrooms and 3 full baths. This 2,872 square foot home was built in 1919 on a lot size of 1.43.
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 automotive repair 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!
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FeaturesGeneralHeating Oil
Roof Asphalt
Appliances Dishwasher Microwave Electric Range Refrigerator Washer Water Heater
Garage Spaces 2
Patio/Porch Features Patio Porch
Architectural Style Cape Cod
Construction Materials Shingle Siding
Year Built 1919
Stories Count 2
Property Subtype Single Family Residence
Tax Year 2026
County Barnstable
Property Type Residential
HOA false
Attached Garage false
Garage Y/N true
Total Rooms 11
Full Baths 3
Status Active
Directions Main St. between South and Sisson
City Harwich
MLS Area Harwich
Lot Size Units Acres
Lot Size Square Feet 62291
Tax Annual Amount 5664
Showing Instructions Call Listing Agent.
Home Warranty Y/N false
Building Area Units Square Feet
Standard Status Active
Tax Assessed Value 974800
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InteriorInterior Amenities HU Cable TV Recessed Lighting
Basement Full
Flooring Wood Tile Carpet
Total Fireplaces 1
Air Conditioning Y/N true
Heating Y/N true
Half Baths 0
Laundry Features Electric Dryer Electric Dryer Hookup Washer Hookup
Total Bedrooms 6
Total Baths 3
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ExteriorExterior Amenities Garden
Parking Features Detached Direct Access Garage Door Opener Heated Garage Storage Driveway Paved
Lot Features Cleared Level
Water Source Public
Total Parking 8
Lot Size Area 1.43
Building Area Total 2872
Lot Size Acres 1.43
Waterfront Y/N false
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* Excluded FeaturesList ByRichard J WaystackListing Agent
Keller Williams RealtyBroker
rwaystack@waystack.comEmail
Affordability Calculator
- Monthly Principal & Interest
- $8,972
- Monthly Property Taxes
- $472
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 7.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Harwich, MA
Average List Price $1,457,710
Percent of Sale Price 12%
About Harwich, MA 12,828 Population
4% Since 2002
$ 70,893 Median Income
54.33 Median Age
17% Households with Children
Trends Information provided by ATTOM Data Solutions.
0 Elementary School
0 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 9/16/2026 | $1,299,000 | -7.15% | Price Down |
| 9/6/2026 | $1,399,000 | | Listed Price |