42 Underhill Rd

Mill Valley, CA 94941

$2,395,000
Price
3
Beds
2,875 Sq. Ft.
$833 / Sq. Ft.
2,875
Sq. Ft.
$833
per Sq. Ft.
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Listed By CompassOpen: 4/1 11:00AM - 02:00PM
Listed By CompassOpen: 4/1 11:00AM - 02:00PM
Primary bedroom on main level and outdoor access to private retreat area.
Primary bedroom on main level
spacious walk in closet and extra storage area in primary
Primary bathroom
Family room with outdoor access and custom wood built-ins
Family room with outdoor access and custom wood built-ins
Family room with outdoor access and custom wood built-ins (fire in fireplace Digitally added )
Upstairs office with built-ins on its own wing
Upstairs office with built-ins on its own wing
half bathroom on main level
Stairs to front door as well as bedroom wing
Bedroom #2
Bedroom #2
Bedroom #2
Bedroom #3
Bedroom #3
Upstairs hall bathroom near bedrooms #2 and #3
Upstairs hall bathroom near bedrooms #2 and #3

Description

42 Underhill in Scott Valley is one of those homes that just feels good the moment you walk in. Offering 3BR + a big separate office, 2.5BA, and approx. 2,875 SqFt, it's been lovingly held by the same family for 41+ yrsrecently refreshed w/new paint, refinished hardwoods & updated lighting. The floor plan is refreshingly livable main living spaces and the primary suite are all on one level. The primary includes a large walk-in closet, vaulted ceiling + its own little outdoor private escape. Vaulted...42 Underhill in Scott Valley is one of those homes that just feels good the moment you walk in. Offering 3BR + a big separate office, 2.5BA, and approx. 2,875 SqFt, it's been lovingly held by the same family for 41+ yrsrecently refreshed w/new paint, refinished hardwoods & updated lighting. The floor plan is refreshingly livable main living spaces and the primary suite are all on one level. The primary includes a large walk-in closet, vaulted ceiling + its own little outdoor private escape. Vaulted ceilings + a gas fireplace anchor the living room, while the bright kitchen offers a large casual dining area. The formal dining room opens to a private outdoor atrium, creating a magical mid-century vibe. The family room adds warmth w/ custom wood built-ins + a 2nd fireplace. Powder room, laundry and the 2-car garage finish off the main level. Upstairs, two bedrooms are located in a separate wing and share a hall bathroom. The second upper-level wing features an expansive office with built-in shelving, storage, and generous workspaceideal for today's flexible living needs. The home features 4 Anderson sliders to access the peaceful, lushly landscaped back yard complete with pool, hot tub, gardens, walking path and expansive decks to enjoy the sunny back yard. Multiple skylights. The driveway and 2 car-garage is accessed via a shared driveway on Lower Dr. Located in the desirable Scott Valley neighborhood, you'll have easy access to the Scott Valley Swim & Tennis Club less than a block away, top-ranked Mill Valley schools, and miles of open space and scenic trails. Move right in or explore endless possibilities to make this spacious home with its smart-flexible floor plan your own.

Listing Agents

  1. Liz McCarthy

    Liz McCarthy

    Listing Agent

    Compass

    DRE #01421997

    liz.mccarthy@compass.com

    P: (415)-250-4929

    CallTextEmail
  2. Shenna Moe

    Shenna Moe

    Listing Agent

    Compass

    DRE #01854690

    shenna.moe@compass.com

    P: (415)-846-9538

    CallTextEmail
  3. McCarthy + Moe Group

    McCarthy + Moe Group

    Listing Agent

    Compass

    mccarthymoe@compass.com

    P: (415)-295-6225

    CallTextEmail

Property Details for 42 Underhill Road

Architectural Style
Contemporary, Mid-Century, Ranch
Subdivision
Scott Valley
Cross Street
Lower
Total Parking Spaces
4

Open Houses

Wednesday, Apr 1st11:00 AM - 2:00 PM
PublicView contact
Saturday, Apr 4th1:00 PM - 4:00 PM
PublicView contact
Sunday, Apr 5th1:00 PM - 4:00 PM
PublicView contact
LISTING UPDATED: 03/30/2026 06:26 PM

Property Details for 42 Underhill Road

StatusActive
MLS #326025264
Days on Compass1
Taxes-
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family Residence
Year Built1965
Lot Size0.21 AC / 9,016 SF
CountyMarin County
Buyer's Agent Compensation2.5%
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Location

Listing Courtesy of Compass, Liz McCarthy, DRE #01421997; Compass, Shenna Moe, DRE #01854690; Compass, McCarthy + Moe Group
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Building Information for 42 Underhill Road

Stories2Year Built1965Building Size-Lot Size0.21 AC / 9,016 SF

Payment Calculator

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$12,093 per month

30 year fixed, 6.11% Interest

Principal and Interest

$11,623

Property Taxes

$470

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 42 Underhill Road

Summary
Location and General Information
  • Area/District: Mill Valley
  • Area Short Display: A1400
  • Directions to Property: Camino Alto to either R Azalea Dr or R Vasco Dr; Right on Underhill. Lockbox front door on Underhill. NOTE Garage is located at back of property (off LowerDr) via shared driveway. Please park on Underhill.
  • Area Long Display: Mill Valley
Taxes and HOA Information
  • Association: No
  • Association Fee: $0
  • APN: 033-182-06
School Information
  • School District (County): Marin
  • Elementary School District: Mill Valley
  • Middle or Junior School District: Mill Valley
  • Senior High School District: Tamalpais Union
Parking
  • Parking Features: Garage Facing Rear, Interior Access
  • Carport Spaces: 0
  • Garage Spaces: 2
  • Open Parking Spaces: 2
Virtual Tour
  • Virtual Media Count: 0
Property
Lot Information
  • Square Footage: 2875.0
  • Square Footage Source: Assessor Auto-Fill
  • Year Built Source: Assessor Auto-Fill
  • Lot Size Source: Assessor Auto-Fill
  • Lot Size Square Feet: 9017.0
  • Lot Features: Auto Sprinkler F&R
Property and Assessments
  • Security Features: Carbon Mon Detector, Smoke Detector
  • Senior Community: No
  • Picture Count: 76
  • Property Disclaimer: All data, photos, visualizations, and information regarding a property, including the property's compliance with state and local legal requirements and all measurements and calculations of area, have been obtained from various sources, and may include such material that has been generated by use of artificial intelligence. Such information and material have not been and will not be verified for accuracy by the listing broker or the multiple listing service, and are not guaranteed as complete, accurate or reliable. Such information and material should be independently reviewed and verified for accuracy. This information and material are intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Utilities
  • Electric: Generator
  • Sewer: Sewer Public
  • Water Source: Water Public
  • Utilities: Natural Gas Connected, Public
Interior and Exterior Features
Exterior Features
  • Stories: 2
  • Levels: 2 Story
  • Upper Level: Bedroom(s), Full Bath(s), Street Entrance
  • Main Level: Bedroom(s), Dining Room, Family Room, Full Bath(s), Garage, Kitchen, Living Room, Primary Bedroom, Partial Bath(s), Street Entrance
  • Patio And Porch Features: Back Porch
  • Other Structures: Storage
  • Pool: Yes
  • Pool Features: In Ground
  • Roof: Composition
  • Pool: Yes
Interior Features
  • Heating: Central, Gas
  • Cooling: None
  • Basement: None
  • Bath Features: Tub w/Shower Over
  • Full Bathrooms: 2
  • Half Bathrooms: 1
  • Bathrooms: 3.0
  • Bedrooms: 3
  • Dining Room Features: Formal Room, Space in Kitchen
  • Living Room Features: Cathedral/Vaulted
  • Kitchen Features: Breakfast Room
  • Flooring: Tile, Wood
  • Fireplace Features: Brick, Family Room, Living Room
  • Fireplace: Yes
  • Interior Features: Cathedral Ceiling
  • Appliances: Built-In Refrigerator
  • Laundry Features: Dryer Included, Inside Area, Washer Included
  • # of Fireplaces: 2
  • # of Rooms: 0
  • Room Type: Atrium, Dining Room, Family Room, Kitchen, Living Room, Primary Bedroom, Office
  • Spa: Yes
  • Spa Features: Spa/Hot Tub Built-In
Multi Family
Multi-Family Information
  • # of Units: 0
Multi-Family Additional Information
  • 2nd Unit Approx SqFt: 0.0
  • 2nd Unit Rents for: $.00
Unit 2
  • ADU/2nd Unit: No

Property History for 42 Underhill Road

DateEvent & SourcePriceAppreciation
Mar 30, 2026

Listed (Active)

REBAREIS #326025264

$2,395,000—
DateEvent & SourcePrice
03/30/2026

Listed (Active)

REBAREIS #326025264

$2,395,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 42 Underhill Road

Taxable ValueLand$61,291Additions$237,172Total$298,463
Tax Record2025$5,639 ($470 / month)
Home Facts
Beds3Total Finished SqFt2,875 SqFtAbove Grade Finished SqFt2,875 SqFtLot Size9,016 SqFtStyleSingle Family ResidenceYear Built1965Year Renovated1970CountyMARINAPN033-182-06Fireplace TypeHas Fireplace

Schools near 42 Underhill Road

This home is within Tamalpais Union High School District.
Rating
School
Type
Grades
Distance
Edna Maguire Elementary School
Public - K to 5
Mill Valley Middle School
Public - 6 to 8
Tamalpais High School
Public - 9 to 12
Park Elementary School
Public - K to 5
Rating
School
Distance
Edna Maguire Elementary School
PublicK to 5

Mill Valley Middle School
Public6 to 8

Tamalpais High School
Public9 to 12

Park Elementary School
PublicK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 42 Underhill Road, Mill Valley, CA 94941

42 Underhill Road is a single family home for sale in Mill Valley, CA 94941. This listing's school districts are Tamalpais Union High School District, Mill Valley Elementary School District. Nearby schools include Edna Maguire Elementary School, Mill Valley Middle School and Tamalpais High School. 42 Underhill Road is a 3-bed, 3-bath, 2,875 sqft single family home built in 1965.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Compass, Liz McCarthy, DRE #01421997; Compass, Shenna Moe, DRE #01854690; Compass, McCarthy + Moe Group

Based on information from one of the following Multiple Listing Services: San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.