33 Shell Road

Set well back from the street behind a landscaped entry, 33 Shell Road sits on a large, flat, expansive lot of approx. 13,300 sq ft in Mill Valley's Alto neighborhood, framed by mature trees for exceptional privacy. The light-filled, fully detached home offers about 3,391 sq ft with white oak floors, formal living and dining rooms, a large mud room, and an eat-in kitchen with quartz counters, an island, dual sinks and new Bosch appliances that opens to the great room. All five bedrooms share one level, along with a central lounge and laundry. The primary suite has Mt. Tam views, dual walk-in closets, a soaking tub and a walk-in shower. There are 3.5 baths, plus a full pool bath. Outside, nearly 1,600 sq ft of decks and porch include an outdoor kitchen, a living green wall and a covered gym deck, all opening to a manicured lawn, pool, hot tub and bocce court. 2-car garage, side parking, and a workshop with storage. Walk to the Alto shopping center and Horse Hill trails; 6 miles to the Golden Gate Bridge.

Days on Market

3 days

Current Status

Active

Original Price

$6,295,000

List Price

$6,295,000

On Market Date

Oct 16, 2026

Property Type

Single Family Residence

District

Mill Valley -

Zip Code

94941

MLS ID

326087549

APN

03308103

Year Built

2014

Stories in Building

2

Possession

Close Of Escrow

Data Source

SFAR

Origin MLS System

Bed

5

Bath

4.5

Private

Parking

10

Attached, Alley Access

SQ FT

3,583

SQ FT Source

Assessor Auto-Fill

Lot SQ FT

13,299.0

Lot Acres

0.3053 Acres

Pool Info

In Ground

Cooling

See Remarks, Other

Entry Level

0

Fire Place

Living Room, Gas Starter

Heating

Gas

Possession

Close Of Escrow

Basement

None

Fee

$0

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.