Single Family Residence at 401 Sandy Valley Rd, Westwood MA 02090
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26 photos

$8,800,000

401 Sandy Valley Rd, Westwood MA 02090
Westwood, MA 02090
Listed by John Boyle
Bedrooms
7
Bathrooms
6.5
Living area
12,762 sqft
Year built
1936

About this home

Set at the end of a long winding drive, this remarkable 16+ acre estate abuts more than 100 acres of conservation land, creating a rare sense of privacy and natural beauty. Suited for formal entertaining, intimate gatherings, and gracious family living, it includes a welcoming main entrance hall, a wonderful living room with an attached library, a spacious formal dining room with adjoining butler’s pantry, and a stunning chef’s kitchen that overlooks a fireplaced family room and a covered patio. There are 7 bedrooms highlighted by a stunning primary suite, as well as two offices, a playroom, an exercise room, and an attached, heated three-car garage. Outdoor amenities include a heated pool with a well-appointed pool house, a sport court, a stream-fed pond, and a barn-garage with a greenhouse and two horse stalls, along with a charming two-bedroom cottage. This exceptional property offers access to excellent public and private schools, Legacy Place, the train, and Boston via Rte. 95/128

Highlights

ViewPrivate poolFireplace

Property details

MLS
MLS Property Information Network
MLS #
73457104
Property type
Single Family Residence
Subdivision
N/A
Status
Active
Days on market
334
On market date
November 21, 2025
Stories
N/A
Total bathrooms
6.5
Garage spaces
6
Parking spaces
26
Lot size
16.78 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.

Elementary
Deerfield School
0.63 mi away · Grades 0-5
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
182
Student:teacher ratio
11.4:1
District
Westwood
Middle
E W Thurston Middle
0.91 mi away · Grades 6-8
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
662
Student:teacher ratio
12.0:1
District
Westwood
High
Westwood High
0.79 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
952
Student:teacher ratio
12.4:1
District
Westwood

Walkability

Blended score for Westwood's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

37
Car-dependent
out of 100
EPA National Walkability Index
5.3 / 20 -- Least walkable
Google Places amenity density
53 / 100
Restaurants & cafes7
Grocery stores1
Parks3
Schools6
Transit stops0
Pharmacies0

Market position

How this listing compares to current activity in Westwood, from live MLS data.

On the market 334 days -- 239 more days than Westwood's current average of 95 days.
For reference, the median list price across 70 active listings in Westwood right now is $1,222,000.

Mortgage calculator

Estimate only - actual rate and payment depend on your lender, credit, and loan program.

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Est. monthly payment
$53,145/mo
$1,760,000 down
$7,040,000 loan
Principal & interest$45,661
Property tax (est.)$7,333
Home insurance (est.)$150

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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated August 14, 2026.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.