21 Cottage Park Ave
Cambridge, MA 02140
$3,599,950 - North Cambridge
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.
| Listing ID: | 73584464 |
|---|---|
| List Price: | $3,599,950 |
| Property Type: | Residential |
| Property Sub Type: | Single Family Residence |
| Status: | Active |
| Bedrooms Total: | 5 |
| Bathrooms Full: | 4 |
| Bathrooms Half: | 1 |
| Living Area: | 4,087 |
| Tax Annual Amount: | $6,377 |
| Lot Size Square Feet: | 4,520 |
| Lot Size Acres: | 0.1 |
| Architectural Style: | Colonial |
| City: | Cambridge |
| MLS Area Major: | North Cambridge |
| County Or Parish: | Middlesex |
| Postal Code: | 02140 |
| Year Built: | 2026 |
| Appliances: | Electric Water Heater, Water Heater, Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer |
| Cooling: | Central Air, Air Source Heat Pumps (ASHP) |
| Flooring: | Tile, Engineered Hardwood |
| Heating: | Air Source Heat Pumps (ASHP) |
| Parking Features: | Detached, Paved Drive, Off Street |
| Status: | Active |
| State Or Province: | MA |
| Water Source: | Public |
| Roof: | Shingle, Rubber, Metal |
| Window Features: | Insulated Windows |
| Laundry Features: | Electric Dryer Hookup |
| Foundation Details: | Concrete Perimeter |
| Construction Materials: | Frame |
| Listing Contract Date: | 2026-09-30 |
| Cooling?: | Yes |
| Fireplace?: | Yes |
| Garage?: | Yes |
| Heating?: | Yes |
| Lot Size Area: | 0.1 |
| Fireplaces Total: | 1 |
| Rooms Total: | 10 |
| Bathrooms Total Integer: | 5 |
| Basement: | true |
| Basement: | Full, Finished |
| Building Area Source: | Other |
| Door Features: | Insulated Doors |
| Exterior Features: | Porch, Deck, Deck - Composite, Professional Landscaping, Sprinkler System |
| Fencing: | Fenced/Enclosed |
| Interior Features: | Wet Bar |
| Living Area Units: | Square Feet |
| Lot Size Units: | Acres |
| Open Parking?: | Yes |
| Parcel Number: | 413233 |
| Patio And Porch Features: | Porch, Deck, Deck - Composite |
| Sewer: | Public Sewer |
| Utilities: | for Electric Range, for Electric Dryer |
| Zoning: | C-1 |
| Covered Spaces: | 1 |
| Garage Spaces: | 1 |
| Year Built Source: | Builder |
| Farm Land Area Units: | Square Feet |
| Mh:Cooling Zones, Cc:Cooling Zones, Mf:Cooling Zones, Sf:Cooling Zones: | 4 |
| Disclosure: | No |
| Dpr Flag: | No |
| Heat Zones: | 4 |
| Lead Paint: | Unknown |
| Listing Alert: | No |
| List Price Per Sqft: | $880.83 |
| Page: | 225 |
| Price Per Sqft: | $880.83 |
| Square Feet Disclosures: | Living area is approximate |
| Square Feet Incl Base: | No |
| Original List Price: | $3,599,950 |
| Parking Total: | 4 |
| Room Bedroom2 Level: | Second |
| Room Bedroom3 Level: | Third |
| Room Bedroom4 Level: | Third |
| Room Dining Room Level: | First |
| Room Family Room Level: | Basement |
| Room Kitchen Level: | First |
| Room Living Room Level: | First |
| Room Master Bedroom Level: | Second |
| Tax Assessed Value: | $1,165,300 |
| Tax Year: | 2025 |
| Year Built Details: | Approximate |
| Building Area Total: | 4,087 |
| Above Grade Finished Area: | 4,087 |
| Below Grade Finished Area: | 1,000 |
| Open Parking Spaces: | 3 |
| Insulation Feature: | Full, Spray Foam |
| Living Area Source: | Other |
| Adu: | N |
| Beachfront Flag: | No |
Listing Courtesy of: eXp Realty LLC
Listing Agent: John Raposo
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MLS Property Information Network, Inc. data last updated on October 08, 2026 04:59 PM - ET
Property Last Updated: October 08, 2026 04:59 PM - ET
