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21 Cottage Park AveCambridge, MA 02140

For Sale

$3,599,950

Smart Buyer Rebate $18,000

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.

Listed by John Raposo

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eXp Realty LLC

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6178393644

Last updated October 26, 2026

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Source: MLSPin #73584464

Listing Facts

  • TypeSingle-family
  • NeighborhoodNorth Cambridge
  • Bedrooms5
  • Bathrooms5
  • Days on Prevu31
  • Taxes$6,377/year
  • Size4,087 sqft
  • Price per sqft$881

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

09/30/2026
Listed by eXp Realty LLC
$3,599,950
  1. 09/30/2026$3,599,950
    Listed by eXp Realty LLC

Property Details for 21 Cottage Park Ave

Exterior

Construction

  • Roof: Shingle, Rubber, Metal
  • Window Features: Insulated Windows
  • Year Built: 2026
  • Year Built Details: Approximate
  • Architectural Style: Colonial
  • Construction Materials: Frame

Features

  • Patio And Porch Features: Porch, Deck

Measurements

  • Building Area Total: 4,087
  • Building Area Units: Square Feet
  • Lot Features: Landscaped
  • Lot Size Acres: 0.10
  • Lot Size Area: 0
  • Lot Size Square Feet: 4,520
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 413233
  • Tax Annual Amount: $6,377.00
  • Tax Assessed Value: $1,165,300.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Electric Water Heater, Water Heater, Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Flooring: Tile
  • Interior Features: Wet Bar

Measurements

  • Living Area: 4,087
  • Living Area Source: Other

Rooms

  • Basement: Full, Finished
  • Has Basement: Yes
  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 5
  • Rooms Total: 10

Parking

Parking

  • Covered Spaces: 1
  • Garage Spaces: 1
  • Garage: Yes
  • Open Parking Spaces: 3
  • Open Parking: Yes
  • Parking Features: Paved, Detached, Off Street
  • Parking Total: 4

Utilities

Equipment

  • Cooling: Central Air, Heat Pump, Zoned
  • Has Cooling: Yes
  • Heating: Heat Pump, Zoned
  • Has Heating: Yes
  • Laundry Features: Electric Dryer Hookup
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 5 bathrooms in this single-family home at 21 Cottage Park Ave.

Does this single-family home have parking?

Yes, there is 1 parking space available for 21 Cottage Park Ave.

What are the annual taxes for 21 Cottage Park Ave?

Annual taxes for this single-family home are estimated at $6,377.

How does 21 Cottage Park Ave compare to other single-family homes in North Cambridge?

This single-family home is listed 11% above the average price for single-family homes in North Cambridge and has been on the market for 32 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,087 sqft.

21 Cottage Park Ave is a 5-bedroom, 5-bath single-family home for sale in Cambridge MA 02140. On Prevu for 31 days at $3,599,950. This property features 4,087 square feet of living space, located in North Cambridge. The median listing price for single-family homes in this area is $719,000. Property amenities include private outdoor space, dishwasher, air conditioning, parking, and washer/dryer. Explore more single-family home listings in Cambridge.

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, landlords 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, leasing or renting 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, leasing or renting. 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.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.