643 Main Street
Harwich, MA, 02645
$1,399,000
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!
Current real estate data for Single Family in Harwich as of Aug 16, 2026
32
Single Family Listed
93
Avg DOM
543
Avg $ / SqFt
$1,306,916
Avg List Price
Property Details
Price:
$1,399,000
MLS #:
22603623
Status:
Active
Beds:
6
Baths:
3
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
harwich
Listed Date:
Jul 27, 2026
Finished Sq Ft:
2,872
Total Sq Ft:
2,872
Lot Size:
62,291 sqft / 1.43 acres (approx)
Year Built:
1919
Schools
Interior
Appliances
Dishwasher, Microwave, Electric Range, Refrigerator, Washer, Water Heater
Bathrooms
3 Full Bathrooms
Fireplaces Total
1
Flooring
Wood, Tile, Carpet
Heating
Oil
Interior Features
HU Cable TV, Recessed Lighting
Laundry Features
Electric Dryer, Electric Dryer Hookup, Washer Hookup, Laundry Room
Exterior
Construction Materials
Shingle Siding
Exterior Features
Garden
Garage Spaces
2
Lot Features
Cleared, Level
Parking Features
Detached, Direct Access, Garage Door Opener, Heated Garage, Storage, Driveway, Paved
Parking Spots
8
Parking Total
8
Patio And Porch Features
Patio, Porch
Roof
Asphalt
Stories
2
Financial
Tax Year
2026
Taxes
$5,664
Map
Contact Us
Mortgage Calculator
Community
- Address643 Main Street Harwich MA
- CityHarwich
- CountyBarnstable
- Zip Code02645
Subdivisions in Harwich
Property Summary
- 643 Main Street Harwich MA is a Single Family for sale in Harwich, MA, 02645. It is listed for $1,399,000 and features 6 beds, 3 baths, and has approximately 2,872 square feet of living space, and was originally constructed in 1919. The current price per square foot is $487. The average price per square foot for Single Family listings in Harwich is $543. The average listing price for Single Family in Harwich is $1,306,916. To schedule a showing of MLS#22603623 at 643 Main Street in Harwich, MA, contact your Thomas D Brown R E Associates agent at 508-487-1112.
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Raised in Orleans and now a resident of Truro, Lucy is extremely familiar with life on the Outer Cape. She is experienced in real estate sales on Cape Cod and has been involved in construction, development and real estate for over thirty-five years here on the Outer Cape. She presently handles all facets of marketing for both Brown Associates and Cape Vacation Rentals. Degree in Sales & Marketing; formerly associated with Nickerson Realty Corp. where she handled all phases of land development, a…
More About Lucy
643 Main Street
Harwich, MA