427 Summit Ave, Mill Valley, CA 94941
Property image
Property image
OFF MARKET

427 Summit Ave
Mill Valley, CA 94941

Cascade Canyon
  • 5 Beds
  • 3.5 Baths
  • 3,517 sqft (on 0.46 acres)

$4,385,800

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $26,451/mo*
Refinance Your Home

$4,385,800

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $26,451/mo*
Refinance Your Home
5 Beds
3.5 Baths
3,517 sqft
(on 0.46 acres)

Local Information

  • Map ViewExplore the area around 427 Summit Ave.
  • Schools5 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1947
Lot Size
0.46 acres
Living Area
3,517 sqft
Price/Sqft
$1,247
Parking
Garage

About this House

This spacious and stunning contemporary mid-ridge home offers privacy, views and great indoor/outdoor flow. The lower level features an open kitchen and expansive living room, where a full-size sliding door opens to a deck w/views toward Mt. Tam. Upstairs boasts 5BR/3BA on the same level, with a gracious master suite and private deck. The landscaped garden, expansive south facing deck and flat yard makes the home ideal for entertaining. Must see!
427 Summit Ave, Mill Valley, CA 94941 is a 5 bedroom, 4 bathroom, 3,517 sqft single-family home in Cascade Canyon, built in 1947. It last sold for $3,237,000 on Apr 5, 2019. It is currently off market. The Trulia Estimate is $4,385,800, with a rent estimate of $8,018/month.

Home Details for 427 Summit Ave

Interior Features

Heating & Cooling
Heating: OtherHeating Fuel: Other
Levels, Entrance, & Accessibility
Stories: 2Floors: Carpet, Hardwood
Interior Details
Number of Rooms: 9Types of Rooms: Dining Room, Family Room, Workshop
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: OtherDeckExterior: Wood
Parking & Garage
GarageParking Spaces: 2Parking: Garage Detached, Off Street

Property Information

Year Built
Year Built: 1947Year Updated: 1980
Property Type / Style
Property Type: Single Family HomeArchitecture: Contemporary

Lot Information

Lot Area: 0.46 acres

Price History for 427 Summit Ave

DatePriceEventSource
04/05/2019$3,237,000Sold
BAREIS #21823731
03/16/2019$3,200,000PendingAgent Provided
03/08/2019$3,200,000Listed For SaleAgent Provided
10/15/2018$3,395,000ListingRemovedAgent Provided
09/11/2018$3,395,000Listed For SaleAgent Provided
12/27/2013$2,870,000Sold
N/A
12/20/2013$3,090,000PendingAgent Provided
11/15/2013$3,090,000PriceChange
Agent Provided
10/09/2013$3,240,000Listed For SaleAgent Provided
04/25/1996$700,000Sold
N/A
03/24/1994$605,000Sold
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$45,643
Assessment$3,678,642
Home facts updated by county records

Comparable Sales for 427 Summit Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
484 Summit Avenue, Mill Valley, CA
0.12
Single-Family Home
$2,180,000
03/27/26
5
3.5
2,748
410 Monte Vista Avenue, Mill Valley, CA
0.37
Single-Family Home
$2,525,000
03/27/26
5
3
2,870
222 Marguerite Avenue, Mill Valley, CA
0.10
Single-Family Home
$2,616,000
01/12/26
4
5
2,925
45 Beverly Terrace, Mill Valley, CA
0.14
Single-Family Home
$1,850,000
12/16/25
3
3
2,350
151 Tamalpais Avenue, Mill Valley, CA
0.27
Single-Family Home
$2,825,000
03/23/26
4
3
2,065
119 Marguerite Avenue, Mill Valley, CA
0.22
Single-Family Home
$3,800,000
10/03/25
6
4.5
4,730
402 Eldridge Ave, Mill Valley, CA
0.45
Single-Family Home
$3,110,000
08/29/25
4
4
2,955
128 Tamalpais Avenue, Mill Valley, CA
0.26
Single-Family Home
$3,250,000
08/07/26
3
4
2,288
200 HAZEL Avenue, Mill Valley, CA
0.50
Single-Family Home
$3,550,000
05/29/26
4
3.5
3,249
39 Renz Road, Mill Valley, CA
0.36
Single-Family Home
$2,850,000
04/10/26
3
3.5
2,463

Nearby homes

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Assigned Schools

These are the assigned schools for 427 Summit Ave.
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 - Outdoor Space

7 rentals with an outdoor space in Mill Valley, CA

Homes for sale near 427 Summit Ave

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Off Market Homes Near 427 Summit Ave

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Frequently asked questions about 427 Summit Ave

  • What is 427 Summit Ave estimated to be worth?
    Trulia's estimated value for 427 Summit Ave in Mill Valley, CA is $4,385,800.
  • What is the price history for 427 Summit Ave?
    427 Summit Ave in Mill Valley, CA last sold for $3,237,000 in April 2019.
  • 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.
  • How big is the lot at 427 Summit Ave?
    The lot at 427 Summit Ave in Mill Valley, CA is about 0.46 acres (20,251 sq ft).
  • Does 427 Summit Ave have a garage?
    Yes, 427 Summit Ave in Mill Valley, CA has a garage.