Primary bedroom
- Level
- Second
21 Cottage Park Ave · Cambridge
For sale
FOR SALE · MLS #73584464
$3,599,950
- beds
- 5
- baths
- 4.5
- sqft
- 4,087
21 Cottage Park Ave
Cambridge, MA 02140
LOCATION
Property location
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21 Cottage Park Ave, Cambridge, MA 02140Open Street View
Massachusetts Ave to Cottage Park Ave
- Home type
- Single Family Residence
- Interior living area
- 4,087 sqft
- Year built
- 2026
- Lot size
- 4,520 sqft (about 0.10 acres)
- Parking spaces
- 4
- Price per sqft
- $881/sqft
About this home
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 · eXp Realty LLC
MLS PIN #73584464 · Updated 10/26/2026, 11:05:00 AM ET
Facts & features
Home overview
- Property subtype
- Single Family Residence
- Property category
- Residential
- MLS status
- Active
- Bedrooms
- 5
- Full bathrooms
- 4
- Half bathrooms
- 1
- Total bathrooms
- 4.5
- Total rooms
- 10
- Living area
- 4,087 sqft
- Living area source
- Other
- Above grade finished area
- 4,087 sqft
- Below grade finished area
- 1,000 sqft
- Building area
- 4,087
- Building area units
- Square Feet
- Building area source
- Other
- Area includes basement
- No
- Area disclosures
- Living area is approximate
Interior & systems
- Heating
- Air Source Heat Pumps (ASHP)
- Heating available
- Yes
- Heating zones
- 4
- Cooling
- Central Air · Air Source Heat Pumps (ASHP)
- Cooling available
- Yes
- Cooling zones
- 4
- Appliances
- Electric Water Heater · Water Heater · Range · Dishwasher · Disposal · Microwave · Refrigerator · Washer · Dryer
- Flooring
- Tile · Engineered Hardwood
- Interior features
- Wet Bar
- Laundry
- Electric Dryer Hookup
- Basement
- Full · Finished
- Fireplace
- Yes
- Fireplaces
- 1
- Windows
- Insulated Windows
- Doors
- Insulated Doors
Room details
Bedroom 2
- Level
- Second
Bedroom 3
- Level
- Third
Bedroom 4
- Level
- Third
Living room
- Level
- First
Dining room
- Level
- First
Family room
- Level
- Basement
Kitchen
- Level
- First
Construction & condition
- Year built
- 2026
- Year built source
- Builder
- Year built details
- Approximate
- Architectural style
- Colonial
- Construction materials
- Frame
- Foundation
- Concrete Perimeter
- Roof
- Shingle · Rubber · Metal
- Attached property
- No
- Home warranty
- No
- Insulation
- Full · Spray Foam
- Accessory dwelling unit
- N
Garage & parking
- Total parking spaces
- 4
- Parking features
- Detached · Paved Drive · Off Street
- Garage
- Yes
- Garage spaces
- 1
- Attached garage
- No
- Covered spaces
- 1
- Carport
- No
- Open parking
- Yes
- Open parking spaces
- 3
Lot & outdoor features
- Lot area
- 4,520 sqft (about 0.10 acres)
- Lot size
- 0.1 acres
- Reported lot area
- 0.1
- Lot size units
- Acres
- Exterior features
- Porch · Deck · Deck - Composite · Professional Landscaping · Sprinkler System
- Patio & porch
- Porch · Deck · Deck - Composite
- Fencing
- Fenced/Enclosed
- Spa
- No
- Waterfront
- No
- Beachfront
- No
Utilities & infrastructure
- Water source
- Public
- Sewer
- Public Sewer
- Utilities
- for Electric Range · for Electric Dryer
HOA & community
- Homeowners association
- No
- Senior community
- No
Taxes & property records
- Annual property tax
- $6,377
- Tax year
- 2025
- Assessed value
- $1,165,300
- Parcel number
- 413233
- Zoning
- C-1
- Registry book
- 82361
- Registry page
- 225
Location & listed schools
- City
- Cambridge
- County
- Middlesex
- State
- MA
- ZIP code
- 02140
- MLS area
- North Cambridge
- Directions
- Massachusetts Ave to Cottage Park Ave
Listing & disclosures
- MLS number
- 73584464
- Listing date
- 2026-09-30
- Original entry date
- 2026-09-30
- Status changed
- 2026-09-30
- Listing modified
- 2026-10-26
- Original list price
- $3,599,950
- Current list price
- $3,599,950
- List price per sqft
- $880.83
- Days on market
- 26
- Property market time
- 26
- Disclosures
- LA has owner ship interest
- Disclosure indicator
- N
- Lead paint
- Unknown
Price & tax details
Current asking price$3,599,950
Original asking price$3,599,950
Listed on2026-09-30
Days on market26
| Year | Property tax | Assessed value |
|---|---|---|
| 2025 | $6,377 | $1,165,300 |
These records are supplied by the current listing. Assessed value is not market value; confirm taxes with the local assessor.
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Results include principal and interest, plus property tax and HOA when MLS lists them; home and mortgage insurance and utilities are excluded. Tax uses the amount in this listing; a buyer’s actual tax may differ with reassessment or residential exemptions. The rate is your assumption, not a current market quote or loan offer.
SCHOOLS & EDUCATION
Schools & performance
School names, grades and state-reported measures are listed below.
This listing does not name individual schools. Public school information below is context, not an attendance assignment for this address.
Nearby public schools
Sorted by straight-line distance within the city. These are not attendance boundaries or a guarantee of enrollment.
77DESE percentile
Nearby public school · not assigned
Peabody
Grades PK · K · 1 · 2 · 3 · 4 · 5
Straight-line distance 0.88 km
Progress toward targets 54%
88DESE percentile
Nearby public school · not assigned
Rindge Avenue Upper School
Grades 6 · 7 · 8
Straight-line distance 0.88 km
Progress toward targets 80%
70DESE percentile
Nearby public school · not assigned
Darby Vassall Upper School
Grades 6 · 7 · 8
Straight-line distance 1.71 km
Progress toward targets 62%
81DESE percentile
Nearby public school · not assigned
John M Tobin
Grades PK · K · 1 · 2 · 3 · 4 · 5
Straight-line distance 1.71 km
Progress toward targets 71%
79DESE percentile
Nearby public school · not assigned
Graham and Parks
Grades PK · K · 1 · 2 · 3 · 4 · 5
Straight-line distance 1.93 km
Progress toward targets 52%
94DESE percentile
Nearby public school · not assigned
Maria L. Baldwin
Grades PK · K · 1 · 2 · 3 · 4 · 5
Straight-line distance 2.30 km
Progress toward targets 88%
MLS school names do not guarantee attendance. Assignment can vary by school year, grade and admissions policy; confirm with the district before committing.
What do these numbers mean?
DESE accountability percentiles (1–99) compare schools administering similar assessments, using up to two years of indicators. These are not test scores out of 100 or GreatSchools 1–10 ratings. Progress toward targets is a separate state measure. Consider programs, support services and your child’s needs as well.
School names link to available school or district websites.
Information is deemed reliable but is not guaranteed. © 2026 MLS Property Information Network, Inc. All rights reserved.
Listings updated