Active
643 Main St
Harwich, MA 02645
Residential · Active · MLS #73555500
Listing Courtesy of William Raveis Harwich Port | Richard J. Waystack
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MLS PIN data
About this home
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!
Property information
Details at a glance
Interior
- Rooms
- 11
- Heating
- Baseboard, Oil
- Cooling
- Window Unit(s)
- Flooring
- Wood, Tile, Carpet, Flooring - Wood, Flooring - Wall to Wall Carpet
- Fireplaces
- 1
Building
- Style
- Single Family Residence
- Year built
- 1919
- Garage
- 2
- Parking
- 10
- Foundation
- Block
- Roof
- Shingle
Land & utilities
- Lot size
- 1.43 acres
- Water
- Public
- Sewer
- Private Sewer
- Zoning
- R
Financial
- Annual taxes
- $5,664
- Assessment year
- 2026
Listing history
Price and status timeline
No additional public listing history was supplied for this property.
Property value estimate
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Comparable sales
Recent properties for context
Recent comparable sales are not available for this property.
Photo insights
Condition signals
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Local market context
How this home compares in Harwich
Active city listing statistics from MLS PIN as of September 6, 2026. Asking prices are not completed-sale values.
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Common questions
About 643 Main St
Can I schedule a private showing?
Yes. Request a tour of 643 Main St and a Bean Group agent will help coordinate an available time with the listing side.
Can you help me evaluate this property?
Yes. We can discuss condition, comparable sales, offer strategy and the questions worth asking before you decide whether to proceed.
Are property documents available?
Availability varies by property and source. Request the documents you need and we will help obtain what is available.