39 Shell Rd, Mill Valley, CA 94941
OFF MARKET

39 Shell Rd
Mill Valley, CA 94941

Alto
  • 4 Beds
  • 2.5 Baths
  • 2,925 sqft (on 0.27 acres)

$3,872,500

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $19,706/mo*
Refinance Your Home

$3,872,500

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $19,706/mo*
Refinance Your Home
4 Beds
2.5 Baths
2,925 sqft
(on 0.27 acres)

Local Information

  • Map ViewExplore the area around 39 Shell Rd.
  • Schools5 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1940
Lot Size
0.27 acres
Living Area
2,925 sqft
Price/Sqft
$1,324
Parking
Garage

About this House

This single-family home is located at 39 Shell Rd, Mill Valley, CA. 39 Shell Rd is in the Alto neighborhood in Mill Valley, CA and in ZIP code 94941. This property has 4 bedrooms, 3 bathrooms and approximately 2,925 sqft of floor space. This property has a lot size of 0.27 acres and was built in 1940.
39 Shell Rd, Mill Valley, CA 94941 is a 4 bedroom, 3 bathroom, 2,925 sqft single-family home in Alto, built in 1940. It last sold for $3,155,900 on Aug 10, 2021. It is currently off market. The Trulia Estimate is $3,872,500, with a rent estimate of $7,802/month.

Home Details for 39 Shell Rd

Interior Features

Heating & Cooling
Heating: RadiantHeating Fuel: Radiant
Levels, Entrance, & Accessibility
Stories: 2
Interior Details
Number of Rooms: 6
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: CompositionDeckExterior: WoodSprinkler System
Parking & Garage
GarageParking: Garage

Property Information

Year Built
Year Built: 1940Year Updated: 1993
Property Type / Style
Property Type: Single Family HomeArchitecture: Contemporary

Community

Units in Building: 1

Lot Information

Lot Area: 0.27 acres

Price History for 39 Shell Rd

DatePriceEventSource
08/10/2021$3,155,900Sold
BAREIS #321051464
07/15/2021$2,495,000PendingBAREIS #321051464
07/09/2021$2,495,000Listed For SaleBAREIS #321051464
04/17/2018$2,070,000Sold
BAREIS #21728464
02/12/2018$1,795,000Listed For SaleAgent Provided

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$41,851
Assessment$3,349,041
Home facts updated by county records

Comparable Sales for 39 Shell Rd

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3 Longfellow Road, Mill Valley, CA
0.28
Single-Family Home
$2,507,000
03/24/26
4
3
2,337
1 Vasco Drive, Mill Valley, CA
0.47
Single-Family Home
$2,950,000
09/26/25
4
3
3,035
105 Kipling Drive, Mill Valley, CA
0.35
Single-Family Home
$2,805,000
04/14/26
5
3
2,490
20 Shell Road, Mill Valley, CA
0.13
Single-Family Home
$2,505,000
10/07/25
3
1.5
1,735
9 Underhill Road, Mill Valley, CA
0.52
Single-Family Home
$2,810,000
05/06/26
4
3
2,550
15 Underhill Road, Mill Valley, CA
0.54
Single-Family Home
$2,550,000
04/20/26
4
2.5
2,515
138 Kipling Drive, Mill Valley, CA
0.43
Single-Family Home
$2,500,000
04/09/26
4
3
2,190
117 Longfellow Road, Mill Valley, CA
0.51
Single-Family Home
$2,300,000
06/25/26
4
3
3,066
17 Vasco Dr, Mill Valley, CA
0.45
Single-Family Home
$5,000,000
01/12/26
4
3
2,252
42 Underhill Road, Mill Valley, CA
0.59
Single-Family Home
$2,910,000
04/24/26
3
2.5
2,875

Nearby homes

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Assigned Schools

These are the assigned schools for 39 Shell Rd.
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

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

What Locals Say about Alto

At least 1 Trulia users voted on each feature.

  • 100 % Say it's dog friendly

  • 100 % Say they plan to stay for at least 5 years

  • 100 % Say there's holiday spirit

  • 100 % Say it's walkable to grocery stores

  • 100 % Say parking is easy

  • 100 % Say neighbors are friendly

  • 50 % Say it's quiet

Sourced by Trulia users. Learn more about our methodology.
  • Annachristinawest
    "Lots of dog owners and nearby walking and hiking paths make it easy to exercise your pooch. Many dog lovers in our neighborhood "
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  • danielshiner
    "Having lived in Mill Valley for thirty years, I have to agree with the many sources, including the Smithsonian, who rate this the best place to live in the country. Small town ambiance, ten minutes to San Francisco, a half hour to the wine country. Lots of local culture--theater and music venues abound, with plays, comedy. ballet, opera, and anything else one could desire. The only drawback is the cost of housing."
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    Flag

LGBTQ Local Legal Protections

Apartments for Rent

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Explore by feature - Pet Friendly

25 pet-friendly rentals in Mill Valley, CA

Explore by feature - Garage

25 rentals with a garage in Mill Valley, CA

Explore by feature - Air Conditioning

14 rentals with air conditioning in Mill Valley, CA

Explore by feature - Pool

10 rentals with a pool in Mill Valley, CA

Explore by feature - Washer/dryer

41 rentals with a washer/dryer in Mill Valley, CA

Explore by feature - Outdoor Space

7 rentals with an outdoor space in Mill Valley, CA

Homes for sale near 39 Shell Rd

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Off Market Homes Near 39 Shell Rd

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Frequently asked questions about 39 Shell Rd

  • What is 39 Shell Rd estimated to be worth?
    Trulia's estimated value for 39 Shell Rd in Mill Valley, CA is $3,872,500.
  • What is the price history for 39 Shell Rd?
    39 Shell Rd in Mill Valley, CA last sold for $3,155,900 in August 2021.
  • 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 39 Shell Rd?
    The lot at 39 Shell Rd in Mill Valley, CA is about 0.27 acres (11,879 sq ft).
  • Does 39 Shell Rd have a garage?
    Yes, 39 Shell Rd in Mill Valley, CA has a garage.