25 Cornwall St, Mill Valley, CA 94941
OFF MARKET

25 Cornwall St
Mill Valley, CA 94941

Cascade Canyon
  • 5 Beds
  • 6 Baths
  • 5,778 sqft (on 0.95 acres)

$7,651,500

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $46,091/mo*
Refinance Your Home

$7,651,500

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $46,091/mo*
Refinance Your Home
5 Beds
6 Baths
5,778 sqft
(on 0.95 acres)

Local Information

  • Map ViewExplore the area around 25 Cornwall St.
  • Schools5 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1903
Lot Size
0.95 acres
Living Area
5,778 sqft
Price/Sqft
$1,324
Parking
Garage

About this House

This single-family home is located at 25 Cornwall St, Mill Valley, CA. 25 Cornwall St is in the Cascade Canyon neighborhood in Mill Valley, CA and in ZIP code 94941. This property has 5 bedrooms, 6 bathrooms and approximately 5,778 sqft of floor space. This property has a lot size of 0.95 acres and was built in 1903.
25 Cornwall St, Mill Valley, CA 94941 is a 5 bedroom, 6 bathroom, 5,778 sqft single-family home in Cascade Canyon, built in 1903. It last sold for $2,770,000 on Sep 30, 2003. It is currently off market. The Trulia Estimate is $7,651,500, with a rent estimate of $7,867/month.

Home Details for 25 Cornwall St

Interior Features

Interior Details
Basement
Heating & Cooling
Heating: OtherHeating Fuel: Other
Fireplace & Spa
Fireplace

Property Information

Year Built
Year Built: 1903Year Updated: 1995
Property Type / Style
Property Type: Single Family HomeArchitecture: Contemporary

Exterior Features

Exterior Home Features
Deck
Pool
Pool
Parking & Garage
GarageParking: Garage Attached

Community

Units in Building: 2

Lot Information

Lot Area: 0.95 acres

Price History for 25 Cornwall St

DatePriceEventSource
09/30/2003$2,770,000Sold
N/A

Market trends in Mill Valley

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.4M
$295KMoM
Sale-to-List Price
108.3%
3.0%MoM
Price per sq ft
$1.08K
$70MoM
Available listings
54
25MoM
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Property Tax and Assessment

Year2025
Tax$60,564
Assessment$4,821,038
Home facts updated by county records

Comparable Sales for 25 Cornwall St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
39 Renz Road, Mill Valley, CA
0.09
Single-Family Home
$2,850,000
04/10/26
3
3.5
2,463
200 HAZEL Avenue, Mill Valley, CA
0.22
Single-Family Home
$3,550,000
05/29/26
4
3.5
3,249
410 Monte Vista Avenue, Mill Valley, CA
0.28
Single-Family Home
$2,525,000
03/27/26
5
3
2,870
116 Cascade Drive, Mill Valley, CA
0.21
Single-Family Home
$6,887,500
05/07/26
4
4.5
4,661
169 Rose Avenue, Mill Valley, CA
0.38
Single-Family Home
$2,550,000
03/27/26
4
3.5
3,629
151 Tamalpais Avenue, Mill Valley, CA
0.22
Single-Family Home
$2,825,000
03/23/26
4
3
2,065
15 Tamalpais Avenue, Mill Valley, CA
0.46
Single-Family Home
$6,500,000
03/16/26
5
2.5
3,920
222 Marguerite Avenue, Mill Valley, CA
0.39
Single-Family Home
$2,616,000
01/12/26
4
5
2,925
119 Marguerite Avenue, Mill Valley, CA
0.51
Single-Family Home
$3,800,000
10/03/25
6
4.5
4,730
4 Wainwright Place, Mill Valley, CA
0.14
Single-Family Home
$1,770,000
10/06/25
4
2.5
2,350

Nearby homes

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Assigned Schools

These are the assigned schools for 25 Cornwall St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Cascade Canyon
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Cascade Canyon

At least 6 Trulia users voted on each feature.

  • 92 % Say car is needed

  • 91 % Say it's dog friendly

  • 91 % Say people would walk alone at night

  • 90 % Say it's walkable to grocery stores

  • 88 % Say there's wildlife

  • 83 % Say they plan to stay for at least 5 years

  • 83 % Say it's quiet

  • 80 % Say it's walkable to restaurants

  • 73 % Say parking is easy

  • 73 % Say yards are well-kept

  • 73 % Say neighbors are friendly

  • 67 % Say there's holiday spirit

  • 57 % Say kids play outside

  • 25 % Say there are community events

  • 20 % Say there are sidewalks

  • 14 % Say streets are well-lit

Sourced by Trulia users. Learn more about our methodology.
  • Tylernewby
    "Although there aren’t many sidewalks in the neighborhood, there is easy access to trails, for and quiet low-traffic streets for dog walking."
    0
    Flag
  • Jarion
    "Fall Arts Festival, Djangofest, Marin Theatre Company, Comedy Night, Mountain Play, marin Shakespeare Theater, Mill Valley Film Festival, Free comedy Night in the street, The Dipsea Run, Wine Festival, Winter Festival"
    2
    Flag
  • Jarion
    "Mill Valley is Dog Town. The dog parks are the best in the world right along the bay. Shop owners have water for dogs; many have treats for them, too. We have thousands of dogs here!"
    1
    Flag
  • Laekasfamily
    "it has outstanding access to trails and parks. the views from this part of Mill Valley are extraordinary. there are a nice mix of ling time neighbors and new neighbors. the weather here is particularly warm and sunny."
    0
    Flag
  • Todd G.
    "The neighbors are friendly and the views are great. this neighborhood is positioned in the middle of the Dipsea, Cypress, and Old Pipeline Trails, so running, hiking, and biking is just out your front door. In the center of the neighborhood there's a large permanent designated Open Space Park Area that used to be the Old Mill Valley Reservoir that people, kids, and dogs walk and play in. Their are only 12 houses on the private road, so there's not a lot of traffic and it's quiet and peaceful. Once a year there's an annual neighborhood block party at the end of Edgewood Ave. "
    0
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

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Explore by feature - Pet Friendly

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Explore by feature - Garage

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Explore by feature - Air Conditioning

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Explore by feature - Pool

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Explore by feature - Outdoor Space

7 rentals with an outdoor space in Mill Valley, CA

Homes for sale near 25 Cornwall St

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Off Market Homes Near 25 Cornwall St

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Frequently asked questions about 25 Cornwall St

  • What is 25 Cornwall St estimated to be worth?
    Trulia's estimated value for 25 Cornwall St in Mill Valley, CA is $7,651,500.
  • What is the price history for 25 Cornwall St?
    25 Cornwall St in Mill Valley, CA last sold for $2,770,000 in September 2003.
  • Is Mill Valley a buyer's or seller's market?
    Mill Valley is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Mill Valley?
    The median sale price in Mill Valley is $2.4M. That is up $295K from the prior month.
  • Does 25 Cornwall St have a pool?
    Yes, 25 Cornwall St in Mill Valley, CA has a pool.
  • How big is the lot at 25 Cornwall St?
    The lot at 25 Cornwall St in Mill Valley, CA is about 0.95 acres (41,294 sq ft).