21 Cottage Park Ave Cambridge, MA ^$ 3,599,950

21 Cottage Park Ave

^$ 3,599,950

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21 Cottage Park Ave

Cambridge, MA, 02140

^$ 3,599,950

Bedrooms5 Baths4.1 Sq 4,087

Monthly Estimate*

^$ 24,864

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Single Family Home for sale in Cambridge, MA

for $3,599,950 with 5 bedrooms and 4 full baths, 1 half bath. This 4,087 square foot home was built in 2026 on a lot size of 0.1.

Striking new luxury single family on a quiet, tree-lined North Cambridge street, blending classic New England architecture with modern finishes and smart home readiness. Over 4,000 sf across four finished levels: 5 beds, 4.5 baths. The open first floor showcases a chef's kitchen with white oak shaker cabinetry, tile subway backsplash, quartz counters, Thermador stainless appliances, classic hood, and oversized island over herringbone oak floors. Half bath and full pantry with water dispensers rounds out the 1st floor. The second floor features a primary suite with spa bath, soaking tub and walk-in shower, plus a second en-suite bedroom and laundry room. Third floor offers two more bedrooms, full bath, and eave storage. Finished lower level features: entertainment room, private study, a bedroom and secondary laundry. Private fenced yard plus detached 1-car garage. Walk to Davis, Porter, Alewife T, Minuteman Bikeway, top schools, parks, and Cambridge/Somerville dining.

Single Family Active

Price

^$ 3,599,950

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 6,377

Style

Colonial

Lot Size

0.1

Year Built

2026

Town/City

Cambridge

County/Region

Middlesex

MLS | Web ID

73584464

List By

John Raposo

Listing Agent

Exp Realty Llc

Broker

Affordability Calculator

$25,395

Per Month

Monthly Principal & Interest: $24,864
Monthly Property Taxes: $531
Monthly Home Insurance: --

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Default based on a 30-year fixed rate of 7.375% 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

Single family listings in Cambridge, MA

Average List Price ^$4,538,874

Percent of Sale Price 26%

About Cambridge, MA

115,839 Population

14% Since 2002

^$90,228 Median Income

34.66 Median Age

17% Households with Children

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Trends Information provided by ATTOM Data Solutions.

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Pricing History

Date	Price	Price Change	Description
9/30/2026	$3,599,950		Listed Price

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21 Cottage Park Ave, Cambridge, MA, 02140 is a Single Family Home for sale at $3,599,950 with 4,087 sqft and a lot size of 0.1. 21 Cottage Park Ave has 5 bedrooms, 4.1 baths, and was built in 2026. The property's zip code is 02140 which is in Cambridge, MA

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 7.375% 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.

Data is updated as of 10/13/2026.

The real estate information and related content displayed on this site is provided 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.

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

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21 Cottage Park Ave

Single Family Home for sale in Cambridge, MA

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