Sweet Single level Kay Park home with a big quiet backyard next to Crest Marin Creek. Step out your front door for outdoor adventures in the woods, waterfront trail and all the shopping and dining options down the street! The relaxing Tamalpais Valley neighborhood of Mill Valley, 312 Marin Avenue offers an exciting opportunity to settle into one of Southern Marin’s most loved communities. Open concept living with kitchen, dining and living room all facing the level backyard (with fruit trees!), and a garden shed and garden beds. The long-time owners lovingly updated this home and gardened the soil to create a peaceful place they called home for 20 years. Originally built as a 3BR/1BA home with a one car garage, the owners captured part of the garage for laundry and office space, with ethernet for an additional WFH area. The home has newer windows and doors and roof and a grey water irrigation system. These meaningful updates provide a strong starting point for the home’s next owner.
Listing Provided Courtesy of Jenn Pfeiffer at Corcoran Icon Properties
Property Details
Price:
$1,249,000
MLS #:
326068002
Status:
Active
Beds:
3
Baths:
1
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Kay Park
Neighborhood:
millvalley
Finished Sq Ft:
1,006
Lot Size:
6,111 sqft / 0.14 acres (approx)
Year Built:
1952
See this Listing
Schools
Interior
Appliances
Built-In Gas Range
Bathrooms
1 Full Bathroom
Cooling
Ceiling Fan(s)
Fireplaces Total
1
Flooring
Simulated Wood
Heating
Heat Pump
Interior Features
Formal Entry, Open Beam Ceiling
Laundry Features
In Garage
Levels
One
Exterior
Architectural Style
Ranch
Construction Materials
Wood
Lot Features
Garden, Manual Sprinkler F&R, Manual Sprinkler Front, Manual Sprinkler Rear
Parking Features
Attached, Other
Parking Spots
2
Parking Total
2
Roof
Composition
Stories
1
Financial
Map
Community
- Address312 Marin Avenue Mill Valley CA
- SubdivisionKay Park
- CityMill Valley
- CountyMarin
- Zip Code94941
Subdivisions in Mill Valley
Market Summary
Current real estate data for Single Family in Mill Valley as of Aug 24, 2026
28
Single Family Listed
25
Avg DOM
1,045
Avg $ / SqFt
$2,229,032
Avg List Price
Property Summary
- Located in the Kay Park subdivision, 312 Marin Avenue Mill Valley CA is a Single Family for sale in Mill Valley, CA, 94941. It is listed for $1,249,000 and features 3 beds, 1 baths, and has approximately 1,006 square feet of living space, and was originally constructed in 1952. The current price per square foot is $1,242. The average price per square foot for Single Family listings in Mill Valley is $1,045. The average listing price for Single Family in Mill Valley is $2,229,032.
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Copyright 2026, Bay Area Real Estate Information Services, Inc. All Rights Reserved. Listing courtesy of Jenn Pfeiffer at Corcoran Icon Properties
312 Marin Avenue
Mill Valley, CA


