21 Old Colony Road Harwich, MA ^$ 849,000

21 Old Colony Road

^$ 849,000

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Open House 8/21 2pm - 4pm

21 Old Colony Road

Harwich, MA, 02645

^$ 849,000

Bedrooms4 Baths2.0 Sq 1,575

Monthly Estimate*

^$ 5,361

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Single Family Home for sale in Harwich, MA

for $849,000 with 4 bedrooms and 2 full baths. This 1,575 square foot home was built in 1965 on a lot size of 1.33.

Set on a spacious 1.3-acre lot in desirable Harwich Center, this 3-bedroom, 2-bath Cape offers exceptional space, versatility, and potential. The home features an enclosed porch, a flexible floor plan, and a one-car garage. An additional detached one-bedroom ADU has been completely gutted and is ready to be finished--ideal for guest accommodations, extended family, a home office, studio, or potential rental income, subject to town approvals. The expansive lot offers plenty of room to create a private outdoor retreat, with potential for a pool or future expansion. Ideally located near Brooks Park for pickleball and recreation, the Cape Cod Rail Trail, Harwich Center shops and restaurants, and the beaches, dining, and boutiques of Harwich Port. A unique opportunity with endless possibilities in the heart of Harwich!

Open House

8/21/2026 2:00 PM - 4:00 PM

21 Old Colony Road Harwich, MA

* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

^$ 849,000

Bedrooms

Full Bath

Property Type

Single Family

Taxes

^$ 4,980

Style

Cape Cod

Lot Size

1.33

Year Built

1965

Town/City

Harwich

County/Region

Barnstable

MLS | Web ID

22604030

Features

General

Sewer Septic Tank Septic Tank

Heating Hot Water

Cooling None

Roof Asphalt Pitched

Appliances Electric Range Refrigerator Electric Water Heater

Zoning R

Garage Spaces 1

Patio/Porch Features Porch Screened Porch

Architectural Style Cape Cod

Construction Materials Shingle Siding

Year Built 1965

Stories Count 1

Township Harwich

Property Subtype Single Family Residence

Tax Year 2026

County Barnstable

New Construction false

Property Type Residential

HOA false

Attached Garage false

Garage Y/N true

Other Structures Outbuilding

Total Rooms 6

Full Baths 2

Status Active

Directions Route 124 to left on Old Colony Dr

City Harwich

High School District Monomoy

Lot Size Units Acres

Lot Size Square Feet 58109

Carport Y/N false

Property Attached Y/N false

Land Lease Y/N false

Tax Annual Amount 4980

Showing Instructions Call or text Natalia for showings 508-717-7631

Home Warranty Y/N false

Property Condition Actual

Building Area Units Square Feet

Living Area Units Square Feet

Standard Status Active

Middle/Junior School District Monomoy

Elementary School District Monomoy

Tax Assessed Value 857100

Interior

Interior Amenities Linen Closet

Basement Bulkhead Access Interior Entry Full

Flooring Hardwood Tile

Total Fireplaces 1

Air Conditioning Y/N false

Heating Y/N true

Fireplace Y/N true

Half Baths 0

Total Bedrooms 4

Main Level Bathrooms 2

Below Grade Finished Area Unit Type Square Feet

Total Baths 2

Exterior

Lot Features Bike Path School Major Highway House of Worship Near Golf Course Cape Cod Rail Trail Shopping In Town Location Cleared Level

Total Parking 4

Lot Size Area 1.33

Foundation Details Concrete Perimeter

Building Area Total 1575

Lot Size Acres 1.33

Road Surface Type Paved

Lot Size Source Assessor

Waterfront Y/N false

Road Frontage Type Public

* Excluded Features

List By

Natalia M Weiner

Listing Agent

Gibson Sotheby's International Realty

Broker

natalia.weiner@gibsonsir.com

Affordability Calculator

$5,776

Per Month

Monthly Principal & Interest: $5,361
Monthly Property Taxes: $415
Monthly Home Insurance: --

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Down Payment

Loan Term

Interest Rate

Yearly Property Taxes

Yearly Home Insurance

Default based on a 30-year fixed rate of 6.49% 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.

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Nearby

Trends
Schools

Single family listings in Harwich, MA

Average List Price ^$1,458,938

Percent of Sale Price 72%

About Harwich, MA

12,828 Population

4% Since 2002

^$70,893 Median Income

54.33 Median Age

17% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

4750209 Elementary School

4734083 Middle School

Unknown High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
8/18/2026	$849,000		Listed Price

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21 Old Colony Road, Harwich, MA, 02645 is a Single Family Home for sale at $849,000 with 1,575 sqft and a lot size of 1.33. 21 Old Colony Road has 4 bedrooms, 2.0 baths, and was built in 1965. The property's zip code is 02645 which is in Harwich, MA

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% 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.

All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Cape Cod & Islands Multiple Listing Service, Inc. Detailed information about real estate listings held by brokerage firms other than Weichert Realtors include the name of the listing broker company. Neither the listing company nor Weichert Realtors shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision.

The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Data is updated as of 8/20/2026. All properties are subject to prior sale, changes, or withdrawal.

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21 Old Colony Road

Single Family Home for sale in Harwich, MA

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