4 beds2 baths1,575 sqft$539/sqft
21 Old Colony Rd, Harwich, MA 02645
Est: $4,730/moGet pre-approved

Description

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...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!
LISTING UPDATED: 08/18/2026 08:26 PM

  1. Listed by Natalia M Weiner • Gibson Sotheby's International Realty

Property Details for 21 Old Colony Road

Status
MLS #
22604030
Days on Market
1
Taxes
$4,980 / year
HOA Fees
-
Condo/Co-op Fees
-
Property Type
MLS Type
Single Family / Single Family Residence
Year Built
1965
Lot Size
1.33 AC / 58,109 SF
Village
Harwich
School District
Monomoy
Waterfront
No
Waterview
No
Num Parking Spaces
4.00
FEMA 100 Yr Flood Plain
Not Applicable
Town
Harwich

Open Houses

Friday, Aug 21st2:00 PM - 4:00 PM

Location

Listing Courtesy of Gibson Sotheby's International Realty, Natalia M Weiner
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Building Information for 21 Old Colony Road

Stories1Year Built1965Building Size-Lot Size1.33 AC / 58,109 SF

Payment Calculator

$4,730 per month

30 year fixed, 6.55% Interest

Principal and Interest

$4,315

Property Taxes

$415

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 21 Old Colony Road

Summary
Location and General Information
  • Directions to Property: Route 124 to left on Old Colony Dr
  • Convenient To:Bike Path: Yes
  • Convenient To:Cape Cod Rail Trail: Yes
  • Convenient To:Golf Course: Yes
  • Convenient To:House of Worship: Yes
  • Convenient To:In Town Location: Yes
  • Convenient To:Major Highway: Yes
  • Convenient To:School: Yes
  • Convenient To:Shopping: Yes
  • Region: Lower Cape
  • County: Barnstable
  • City Postal ID: 02645
  • Street Number: 21
  • MLSAreaMajor: Harwich
Parking
  • Garage: Yes
  • Garage Description:Detached: Yes
  • Garage Description:Storage Above: Yes
  • Parking Description:Off-Street: Yes
  • Parking Description:Paved Driveway: Yes
  • Garage Spaces: 1.00
Taxes and HOA Information
  • Tax Year: 2026
  • Annual Assoc Fee: $0
Virtual Tour
  • Virtual Tour YN: No
Property
Lot Information
  • Zoning: R
  • Tax ID: HARW M:41 B: L:B7-8-0
  • Lot Size Source: Assessor
  • TopographyLot Desc:Cleared: Yes
  • TopographyLot Desc:Level: Yes
  • Land Use: 109 - Residential, multiple houses
  • Lot Size Square Feet: 58109
  • Sqft Total: 1575
  • Field Card SqFt: 1575
  • Lot Size Units: Acres
  • General Property Info:Leased Land: No
Property and Assessments
  • Total Assessment: $857,100
  • Land Assessments: $323,500
  • Building Assessments: $533,600
  • Renovated: No
  • Flood Ins Required: Not Verified
  • Lead Base Paint: Unknown
  • Year Round: Yes
  • Landlord Pays:Hot Water: Yes
  • Year Built Desc:Actual: Yes
  • Property Type: Residential, Single Family Residence
  • Property Subtypes: Single Family Residence
  • Year Built Numeric: 1965
  • Construction Materials: Shingle
  • Property Type: Residential
Utilities
  • Cooling: None
  • Fuel Type:Oil: Yes
  • Hot Water:Tank: Yes
  • Water:Town Water: Yes
  • Sewer:Septic Tank: Title V Grade Level
  • Water Source: Public
Interior and Exterior Features
Exterior Features
  • Exterior Features: Private Yard
  • Miles to Beach: 1 to 2
  • Private Dock: No
  • Appliances:Range - Electric: Yes
  • Appliances:Refrigerator: Yes
  • Private Dock Description: Electric
  • Foundation: Concrete Perimeter
  • Roof Description: Asphalt, Pitched
  • Siding Description:Shingle: Yes
  • Private Pool YN: No
Interior Features
  • Basement Description:Bulkhead Access: Yes
  • Basement Description:Full: Yes
  • Basement Description:Interior Access: Yes
  • Floors: Hardwood, Tile
  • Heating: Oil
  • Interior Features: Linen Closet, No, Eat-in Kitchen
  • Basement: Yes
  • Separate Living Qtrs:First Floor: Yes
  • Separate Living Qtrs:In-Law Apartment: Yes
  • Fireplace: Yes
  • Baths Per Level: Baths - Level 1: 2
  • Sep Living Qtrs Info: Baths - Full: 1
  • Sep Living Qtrs Info: Baths - Total: 1
  • Sep Living Qtrs Info: Beds: 1
  • Sep Living Qtrs Info: Type: Detached Bedroom
  • Total Rooms: 6
  • Baths Total: 2
  • Total Floor Plans Count: 1
  • RoomsTotal: 6
  • Bathrooms Total (Decimal): 2.00
  • Bathrooms Total (Notational): 2.00
  • Cooling: No
  • Fireplaces Total: 1
  • Heating: Yes
  • Stories: 1
  • General Property Info:Stories: 1
Rental
Rental Information
  • Owner Pays: Hot Water

Property History for 21 Old Colony Road

DateEvent & SourcePriceAppreciation
Aug 18, 2026

Listed (Active)

Cape Cod & Islands Multiple Listing Service #22604030

$849,000
DateEvent & SourcePrice
08/18/2026

Listed (Active)

Cape Cod & Islands Multiple Listing Service #22604030

$849,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 21 Old Colony Road

Taxable ValueLand$311,100Additions$520,300Total$831,400
Tax Record2025$4,914 ($410 / month)
Home Facts
Beds0Lot Size58,117 SqFtStyleSingle Family ResidenceZoningRCountyBARNSTABLEAPNHARW M:41 P:B7-8

Schools near 21 Old Colony Road

This home is within Monomoy Regional School District.
Rating
School
Type
Grades
Distance
Public - PK to 4
Public - PK to 4
Public - 5 to 7
Public - 8 to 12
Rating
School
Distance
Chatham Elementary School
PublicPK to 4

Harwich Elementary School
PublicPK to 4

Monomoy Regional Middle School
Public5 to 7

Monomoy Regional High School
Public8 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Similar Homes

21 Old Colony Road is a single family home for sale in Harwich, MA 02645. This property was listed for sale on August 18, 2026 by Gibson Sotheby's International Realty, it's currently listed at $849,000. This listing's school district is Monomoy Regional School District. Nearby schools include Chatham Elementary School, Harwich Elementary School and Monomoy Regional Middle School. 21 Old Colony Road is a 4-bed, 2-bath, 1,575 sqft single family home built in 1965.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Gibson Sotheby's International Realty, Natalia M Weiner

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 Compass includes, at minimum, the name of the listing agent and broker attribution assigned by the listing broker. Neither the listing firm nor Compass and its related brokerages shall be responsible for any typographical errors, misinformation, or 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. Copyright 2026 Cape Cod & Islands Multiple Listing Service, Inc. All rights reserved.