Overview Property Details Payment Calculator Walkability

Add to favorites

Remove from favorites
Send to Friend
Watch changes on this property

Pending

21 Old Colony Rd, Harwich MA 02645

$849,000

Estimated $5,646/month Calculator

Single Family

4 Bedrooms

Baths

2031

Total Parking: 7 (1 Garage)

58,117 (1.33)

Built in 1965

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!

This home has been viewed 2 times

Last Checked: September 15th, 2026 at 2:08pm (Source: MLS PIN #73566214)

Garage Parking

Air Conditioning

Waterview

Lead Paint Free

General Information for 21 Old Colony Rd, Harwich MA 02645

Listing ID73566214

Property TypeSingle Family / Detached

Price$849,000 ($418.02/SqFt)

StyleColonial

CityHarwich

CountyBarnstable

Neighborhood(s)

Garage Parking1

ZoningR

Year Built1965

Year Built SourcePublic Records

Year Built DetailsActual

Interior Features for 21 Old Colony Rd, Harwich MA 02645

Approximate Living Area Total2031

Living Area Includes BasementNo

Rooms6

Bedrooms4

Primary En Suite BathroomYes

BasementFull

CoolingSplit

Fireplaces

AppliancesRange

Flooring

Electric

Exterior Features for 21 Old Colony Rd, Harwich MA 02645

Approximate Lot Size (Acres)1.33

Approximate Lot Size (Square Feet)58117

Total Parking7 (1 Garage)

Garage Parking1

WaterPublic

SewerInspection Required For Sale

Lot FeaturesGentle Sloping

Parking Features1

Exterior Features

Foundation Materials

Construction Materials

Road Frontage Type

Patio & Porch

Roof MaterialAsphalt/fiberglass Shingles

Utility Connections

Water ViewsNo

Water Views Features

Waterfront0

Waterfront FeaturesRiver

Pool Features

Horse Permitted0

Horse AmenitiesRiver

Disclosures for 21 Old Colony Rd, Harwich MA 02645

Lead PaintNone

UFFI

Living Area Includes BasementNo

Living Area Disclosure

Building Area SourcePublic Records

Special Listing Conditions

ExclusionsPersonal Belongings.

Compensation Based On

Financial Information for 21 Old Colony Rd, Harwich MA 02645

Association Fee

Association Fee Frequency

Association Fee Includes

Real Estate Tax4980

Tax Year2026

Assessed Value$857,100

Location Information for 21 Old Colony Rd, Harwich MA 02645

Neighborhood(s)

Area Amenities

Contact Information for 21 Old Colony Rd, Harwich MA 02645

Agent

Name: Natalia Weiner

Office

Name: Gibson Sotheby's International Realty

Phone: 508-432-6100

Payment Calculator

, Interest

Property Taxes 415

Principal & Interest 5231.27

HOA Dues

Term

Interest

Home Price

Down Payment

Exclusive Listing Agent

Gibson Sotheby's International Realty

Natalia Weiner

Agent Phone

Office Phone

(508) 432-6100

Text Agent Call Agent Call Office

Array
(
    [acres] => Approx. 1.33 acres (58,117 SqFt)
    [add_date] => 2026-09-15 14:08:35
    [address] => Old Colony Rd
    [agent] => Array
        (
            [address] => 101 Headwaters Drive
            [city] => Harwich
            [id] => CN230629
            [name] => Natalia Weiner
            [national_association] => 448011421
            [office] => AN4813
            [state] => MA
            [zip] => 02645
        )

[apod_available] => Array
        (
        )

[appliances] => Array
        (
            [0] => Range
        )

[approx_living_area_total] => 2031
    [approx_lot_size_acres] => 1.33
    [approx_lot_size_sqft] => 58117
    [assessed_value] => $857,100
    [association] => 
    [association_fee] => Array
        (
        )

[association_fee_frequency] => Array
        (
        )

[association_fee_includes] => Array
        (
        )

[association_required] => Array
        (
        )

[available_date] => 
    [available_now] => 0
    [basement] => Array
        (
            [0] => Full
        )

[bathrooms] => 
    [bedrooms] => 4
    [building_amenities] => Array
        (
        )

[building_area_source] => Array
        (
            [0] => Public Records
        )

[building_management] => Array
        (
        )

[building_debug] => 
    [building_id] => 
    [building_parent] => 0
    [building_name] => 
    [building_name_from_address] => 
    [building_url] => 
    [buyer_agent_compensation] => 
    [buyer_agent_id] => 
    [buyer_office_id] => 
    [c_style] => Array
        (
            [0] => Detached
        )

[c_type] => Array
        (
            [0] => Single Family
        )

[cap_rate] => 
    [city] => Harwich
    [community_features] => Array
        (
        )

[compensation_based_on] => Array
        (
        )

[complex_complete] => Array
        (
        )

[construction_materials] => Array
        (
        )

[construction_status] => 
    [cooling] => Array
        (
            [0] => Split
        )

[cooperating_agent_commission] => Array
        (
        )

[county] => Barnstable
    [cultivation_acres] => 
    [date_available_note] => 
    [deposit_amount] => Array
        (
        )

[deposit_required] => Array
        (
        )

[deqe] => 
    [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 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!
    [disclosures] => 
    [documents_available] => Array
        (
        )

[electric] => Array
        (
        )

[electric_expense] => Array
        (
        )

[elementary_school] => 
    [en_suite_bath] => Array
        (
            [0] => Yes
        )

[energy_features] => 
    [entry_level] => Array
        (
        )

[estimated_monthly_payment] => 
    [exclusions] => Array
        (
            [0] => Personal Belongings.
        )

[exterior_features] => Array
        (
        )

[facilitator_compensation] => 
    [fee_paid_by_tennant] => 
    [financial_data_source] => Array
        (
        )

[fireplaces] => Array
        (
        )

[first_month_required] => Array
        (
        )

[floor_number] => 0
    [flooring] => Array
        (
        )

[for_sale_by_owner] => 
    [foundation_area] => 
    [foundation_materials] => Array
        (
        )

[frontage_length] => 
    [full_baths] => 
    [garage_parking] => 1
    [gas] => Array
        (
        )

[gas_expense] => Array
        (
        )

[gross_income] => Array
        (
        )

[half_baths] => 
    [handicap_access] => 
    [heating] => 
    [heating_expense] => Array
        (
        )

[high_school] => 
    [horse_features] => Array
        (
            [0] => River
        )

[horse_permitted] => 0
    [hot_water] => Array
        (
        )

[id] => 
    [insurance_expense] => Array
        (
        )

[insurance_required] => Array
        (
        )

[interior_features] => Array
        (
        )

[last_month_required] => Array
        (
        )

[last_sync_date] => 2026-09-15 14:08:35
    [laundry_features] => Array
        (
        )

[lead_paint] => Array
        (
            [0] => None
        )

[lease_term] => Array
        (
        )

[levels_in_unit] => 
    [living_area] => 
    [living_area_disclosure] => Array
        (
        )

[living_area_includes_basement] => Array
        (
            [0] => No
        )

[lot_features] => Array
        (
            [0] => Gentle Sloping
        )

[management_expense] => Array
        (
        )

[middle_school] => 
    [miscellaneuos_expense] => Array
        (
        )

[mls_area] => 
    [mls_id] => 73566214
    [neighborhoods] => 
    [net_income_calc] => -4980
    [net_operating_income] => Array
        (
        )

[number_of_lots] => Array
        (
        )

[number_of_units] => 
    [office] => Array
        (
            [id] => AN4813
            [name] => Gibson Sotheby's International Realty
            [phone] => 508-432-6100
        )

[operating_expense] => Array
        (
        )

[optional_fee_includes] => Array
        (
        )

[optional_price] => 0
    [outdoor_space_available] => Array
        (
        )

[owner_occupancy_source] => 
    [parking_features] => Array
        (
            [0] => 1
        )

[pasture_area] => 
    [patio_and_porch] => Array
        (
        )

[perc_test] => Array
        (
        )

[perc_test_date] => 
    [pet_policy] => Array
        (
            [0] => Allowed
        )

[phone] => 
    [pool_features] => Array
        (
        )

[price] => 849000
    [price_per_sqft] => 418.02
    [price_per_unit] => 849000
    [private_pool] => 
    [property_sub_type] => Array
        (
            [0] => Single Family Residence
        )

[real_estate_tax] => 4980
    [references_required] => Array
        (
        )

[rent_includes] => Array
        (
        )

[repair_maintenance_expense] => Array
        (
        )

[road_frontage_type] => Array
        (
        )

[roof_material] => Array
        (
            [0] => Asphalt/fiberglass Shingles
        )

[rooms] => 6
    [schools] => 
    [senior_community] => 
    [sewer] => Array
        (
            [0] => Inspection Required For Sale
        )

[sewer_expense] => Array
        (
        )

[short_sale] => Array
        (
        )

[special_listing_conditions] => Array
        (
        )

[state] => Massachusetts
    [state_code] => MA
    [status] => Array
        (
            [0] => Pending
        )

[street_number] => 21
    [structure_type] => Array
        (
        )

[style] => Array
        (
            [0] => Colonial
        )

[subagent_compensation] => 
    [tag_accessible_features] => 
    [tag_air_conditioning] => 1
    [tag_association_pool] => 
    [tag_beach_access] => 
    [tag_beach_front] => 
    [tag_elevator] => 
    [tag_equestrian] => 
    [tag_garage_parking] => 1
    [tag_generator] => 
    [tag_green_features] => 
    [tag_laundry] => 
    [tag_lead_paint_free] => 1
    [tag_loft] => 
    [tag_pet_friendly] => 
    [tag_pre_construction] => 
    [tag_private_outdoor_space] => 
    [tag_private_pool] => 
    [tag_professional_management] => 
    [tag_recently_renovated] => 
    [tag_senior_community] => 
    [tag_townhouse] => 
    [tag_waterfront] => 
    [tag_waterview] => 1
    [tax_year] => 2026
    [team] => 
    [team_agents] => Array
        (
        )

[terms] => Array
        (
        )

[timber_acres] => 
    [title_5] => 
    [total_gross_expense] => 4980
    [total_gross_income] => 0
    [total_parking] => 7 (1 Garage)
    [trash_expense] => Array
        (
        )

[travel_routes] => 
    [uffi] => Array
        (
        )

[unit_1_bathrooms] => 
    [unit_1_bedrooms] => 
    [unit_1_floor] => 
    [unit_1_lease] => Array
        (
        )

[unit_1_levels] => 
    [unit_1_rent] => Array
        (
        )

[unit_2_bathrooms] => 
    [unit_2_bedrooms] => 
    [unit_2_floor] => 
    [unit_2_lease] => Array
        (
        )

[unit_2_levels] => 
    [unit_2_rent] => Array
        (
        )

[unit_3_bathrooms] => 
    [unit_3_bedrooms] => 
    [unit_3_floor] => 
    [unit_3_lease] => Array
        (
        )

[unit_3_levels] => 
    [unit_3_rent] => Array
        (
        )

[unit_4_bathrooms] => 
    [unit_4_bedrooms] => 
    [unit_4_floor] => 
    [unit_4_lease] => Array
        (
        )

[unit_4_levels] => 
    [unit_4_rent] => Array
        (
        )

[unit_level] => 
    [unit_number] => 
    [units_owner_occupied] => 
    [unparsed] => 21 Old Colony Rd, Harwich MA 02645
    [utilities] => Array
        (
        )

[view] => Array
        (
        )

[water] => Array
        (
            [0] => Public
        )

[water_expense] => Array
        (
        )

[water_views] => Array
        (
            [0] => No
        )

[water_views_features] => Array
        (
        )

[waterfront] => 0
    [waterfront_features] => Array
        (
            [0] => River
        )

[raw] => 
)

EXIT

39 More Photos