# 643 Main Street, Harwich, MA 02645

> **TL;DR:** 6bd/3ba single family, $1,299,000 ($452/sqft), built 1919, 2,872 sqft.
> Fireplace, A/C, 2-car garage. Est. $6,947/mo. Listed 82 days.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $1,299,000 |
| Price/sqft | $452 |
| Bedrooms | 6 |
| Bathrooms | 3 full |
| Square Feet | 2,872 |
| Year Built | 1919 |
| Lot Size | 62,291 sqft (1.43 acres) |
| Stories | 2 |
| Garage | 2-car |
| Property Type | Single Family (Single Family Residence) |
| Status | Active |
| Days on Market | 82 |

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Principal & Interest (20% down, 30-year at 6.5%) | $6,568 |
| Estimated Insurance | $379 |
| **Total** | **$6,947** |

## Key Amenities

- Fireplace
- A/C
- 2-car garage

## Property Highlights

- Built in 1919
- 1.43 acre lot
- 2 stories
- 8 parking spaces
- Fireplace

## Description

### Agent Description
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!

## Location

- **Address:** 643 Main Street, Harwich, MA 02645
- **County:** Barnstable
- **Coordinates:** 41.685932, -70.081533
- **Google Maps:** https://www.google.com/maps?q=41.685932,-70.081533

## Listing Agent

- **Name:** Richard J Waystack
- **Brokerage:** MA Realty Partners LLC, DBA Keller Williams Realty, Mid Upper Cape Cod
- **Phone:** 5087760964
- **Broker Phone:** 508-534-7200
- **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/643-Main-St_Harwich_MA_02645_M40909-53564?f=listhub&s=CCIAORMA&m=22603623&c=propsimple)

## Photos

![643 Main Street - Photo 1](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f816697963r.jpg)

![643 Main Street - Photo 2](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f228969018r.jpg)

![643 Main Street - Photo 3](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2734503910r.jpg)

![643 Main Street - Photo 4](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f575912685r.jpg)

![643 Main Street - Photo 5](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1107870804r.jpg)

![643 Main Street - Photo 6](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2455648698r.jpg)

![643 Main Street - Photo 7](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2946604850r.jpg)

![643 Main Street - Photo 8](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1365819447r.jpg)

![643 Main Street - Photo 9](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3179655953r.jpg)

![643 Main Street - Photo 10](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f4238703313r.jpg)

![643 Main Street - Photo 11](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2674209644r.jpg)

![643 Main Street - Photo 12](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1912589541r.jpg)

![643 Main Street - Photo 13](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1933411795r.jpg)

![643 Main Street - Photo 14](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1069420864r.jpg)

![643 Main Street - Photo 15](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2305779045r.jpg)

![643 Main Street - Photo 16](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2293708777r.jpg)

![643 Main Street - Photo 17](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2040514861r.jpg)

![643 Main Street - Photo 18](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3615199449r.jpg)

![643 Main Street - Photo 19](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f390762275r.jpg)

![643 Main Street - Photo 20](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3803409920r.jpg)

![643 Main Street - Photo 21](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f4033143887r.jpg)

![643 Main Street - Photo 22](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f638123664r.jpg)

![643 Main Street - Photo 23](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1385129166r.jpg)

![643 Main Street - Photo 24](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1179841954r.jpg)

![643 Main Street - Photo 25](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1364400699r.jpg)

![643 Main Street - Photo 26](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1137718178r.jpg)

![643 Main Street - Photo 27](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f371509752r.jpg)

![643 Main Street - Photo 28](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f267069621r.jpg)

![643 Main Street - Photo 29](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1336991538r.jpg)

![643 Main Street - Photo 30](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3951084809r.jpg)

![643 Main Street - Photo 31](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f4147678536r.jpg)

![643 Main Street - Photo 32](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2397989038r.jpg)

![643 Main Street - Photo 33](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3984196767r.jpg)

![643 Main Street - Photo 34](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1954135120r.jpg)

![643 Main Street - Photo 35](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f1875301313r.jpg)

![643 Main Street - Photo 36](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2610460348r.jpg)

![643 Main Street - Photo 37](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f466563231r.jpg)

![643 Main Street - Photo 38](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2805456723r.jpg)

![643 Main Street - Photo 39](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f2260376525r.jpg)

![643 Main Street - Photo 40](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f986857133r.jpg)

![643 Main Street - Photo 41](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f3929589207r.jpg)

![643 Main Street - Photo 42](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f900687968r.jpg)

![643 Main Street - Photo 43](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f447227696r.jpg)

![643 Main Street - Photo 44](http://lh.rdcpix.com/561e3910b5842972768ba91d249ec42al-f857438328r.jpg)

---

**MLS#:** 22603623 | **Updated:** 2026-10-16
**Source:** listhub

*Copyright © 2026 Cape Cod & Islands Association of REALTORS®, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.*

[View on PropertySimple](https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623)

---

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        "@type": "PropertyValue",
        "name": "Property Subtype",
        "value": "Single Family Residence"
      }
    ]
  },
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    "@type": "Offer",
    "@id": "https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623#offer",
    "url": "https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623",
    "price": 1299000,
    "priceCurrency": "USD",
    "businessFunction": "http://purl.org/goodrelations/v1#Sell",
    "availability": "https://schema.org/InStock",
    "seller": {
      "@id": "https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623#agent"
    }
  },
  "provider": {
    "@type": "Person",
    "@id": "https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623#agent",
    "name": "Richard J Waystack",
    "telephone": "5087760964",
    "worksFor": {
      "@type": "Organization",
      "@id": "https://www.propertysimple.ai/listing/643-main-street-harwich-ma-02645-22603623#brokerage",
      "name": "MA Realty Partners LLC, DBA Keller Williams Realty, Mid Upper Cape Cod",
      "telephone": "508-534-7200"
    }
  }
}
```