15 Shell Rd, Mill Valley, CA 94941
Property image
Property image
OFF MARKET

15 Shell Rd
Mill Valley, CA 94941

Alto
  • 4 Beds
  • 4.5 Baths
  • 2,248 sqft

$3,761,800

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $22,698/mo*
Refinance Your Home

$3,761,800

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $22,698/mo*
Refinance Your Home
4 Beds
4.5 Baths
2,248 sqft

Local Information

  • Map ViewExplore the area around 15 Shell Rd.
  • Schools5 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1944
Living Area
2,248 sqft
Price/Sqft
$1,673
Parking
Garage

About this House

This single-family home is located at 15 Shell Rd, Mill Valley, CA. 15 Shell Rd is in the Alto neighborhood in Mill Valley, CA and in ZIP code 94941. This property has 4 bedrooms, 5 bathrooms and approximately 2,248 sqft of floor space. This property has a lot size of 7840 sqft and was built in 1944.
15 Shell Rd, Mill Valley, CA 94941 is a 4 bedroom, 5 bathroom, 2,248 sqft single-family home in Alto, built in 1944. It last sold for $2,726,000 on Jul 3, 2019. It is currently off market. The Trulia Estimate is $3,761,800, with a rent estimate of $7,793/month.

Home Details for 15 Shell Rd

Interior Features

Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2Floors: Tile, Hardwood
Interior Details
Number of Rooms: 6Types of Rooms: Walk In Closet, Breakfast Nook, Dining Room, Family Room, Master Bath, Mud Room, Office, Pantry, Workshop, Solarium Atrium, Sun Room
Appliances & Utilities
DishwasherDisposalDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: CompositionDeckExterior: Shingle Not Wood
Parking & Garage
GarageParking Spaces: 3Parking: Garage Attached, Garage Detached, Off Street, On Street

Property Information

Year Built
Year Built: 1944Year Updated: 1950
Property Type / Style
Property Type: Single Family HomeArchitecture: Contemporary

Lot Information

Lot Area: 7840 sqft

Price History for 15 Shell Rd

DatePriceEventSource
07/03/2019$2,726,000Sold
N/A
10/15/2018$500,000Sold
N/A
09/11/2015$2,487,000Sold
N/A
08/03/2015$2,495,000Listed For SaleAgent Provided
05/22/2013$907,000Sold
N/A
05/07/2013$699,000Listed 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
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$37,661
Assessment$2,981,235
Home facts updated by county records

Comparable Sales for 15 Shell Rd

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3 Longfellow Road, Mill Valley, CA
0.41
Single-Family Home
$2,507,000
03/24/26
4
3
2,337
138 Kipling Drive, Mill Valley, CA
0.54
Single-Family Home
$2,500,000
04/09/26
4
3
2,190
26 Plaza Drive, Mill Valley, CA
0.03
Single-Family Home
$1,620,000
09/17/25
3
2
1,347
105 Kipling Drive, Mill Valley, CA
0.47
Single-Family Home
$2,805,000
04/14/26
5
3
2,490
20 Shell Road, Mill Valley, CA
0.05
Single-Family Home
$2,505,000
10/07/25
3
1.5
1,735
137 Tiburon Blvd, Mill Valley, CA
0.55
Single-Family Home
$1,998,000
11/04/25
4
3
1,997
61 N Knoll Road, Mill Valley, CA
0.24
Single-Family Home
$3,220,000
10/15/25
7
5
5,060
15 Underhill Road, Mill Valley, CA
0.62
Single-Family Home
$2,550,000
04/20/26
4
2.5
2,515
9 Underhill Road, Mill Valley, CA
0.61
Single-Family Home
$2,810,000
05/06/26
4
3
2,550
9 Coach Road, Mill Valley, CA
0.58
Single-Family Home
$4,805,000
05/11/26
4
3.5
3,234

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 15 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 "
    0
    Flag
  • 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."
    0
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

25 pet-friendly rentals in Mill Valley, CA

Explore by feature - Garage

26 rentals with a garage in Mill Valley, CA

Explore by feature - Air Conditioning

15 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

42 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 15 Shell Rd

Skip to last item
Skip to first item

Off Market Homes Near 15 Shell Rd

Skip to last item
Skip to first item

Frequently asked questions about 15 Shell Rd

  • What is 15 Shell Rd estimated to be worth?
    Trulia's estimated value for 15 Shell Rd in Mill Valley, CA is $3,761,800.
  • What is the price history for 15 Shell Rd?
    15 Shell Rd in Mill Valley, CA last sold for $2,726,000 in July 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.
  • Does 15 Shell Rd have air conditioning?
    Yes, 15 Shell Rd in Mill Valley, CA has air conditioning.
  • Does 15 Shell Rd have laundry facilities?
    Yes, 15 Shell Rd in Mill Valley, CA has in-unit laundry.