NOT LISTED FOR SALE

20 Walnut Ave Mill Valley, CA 94941

Sycamore Park Neighborhood

Estimated Value: $4,127,824 - $5,371,000

4 Beds
3 Baths
2,486 Sq Ft
$1,887/Sq Ft Est. Value

Last Sold October 24, 2023

Last sale price $4,100,000 $1,649 Per Sq Ft

Est. 14% increase in value since last sale

Current estimated payment $28,400/month

Highlights

  • Spa
  • Craftsman Architecture
  • 2 Fireplaces
  • Mill Valley Middle School Rated A
  • Main Floor Primary Bedroom
  • 1 Car Detached Garage

About This Home

As of October 2023

Craftsman style home in need of remodel on spacious level lot in Sycamore Park. Approved plans for remodel and 300+ ft. addtion available. Existing home livable but tired and ready for kitchen and bath remodel at minimum.

Last Agent to Sell the Property

Melissa Crawford

Redfin License #01224441 Listed on: 10/02/2023

Redfin

Last Buyer's Agent

Susannah Searson

The House License #02203718

Home Details

Home Type

  • Single Family

Year Built

  • Built in 1909

Lot Details

  • 10,498 Sq Ft Lot
  • Flag Lot

Parking

  • 1 Car Detached Garage
  • Electric Vehicle Home Charger
  • Garage Door Opener

Home Design

  • Craftsman Architecture
  • Fixer Upper

Interior Spaces

  • 2,486 Sq Ft Home
  • 2-Story Property
  • 2 Fireplaces
  • Wood Burning Fireplace
  • Gas Fireplace
  • Family Room
  • Living Room
  • Laundry on upper level

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Primary Bedroom on Main
  • 3 Full Bathrooms

Pool

  • Spa

Utilities

  • Zoned Heating and Cooling
  • Internet Available
  • Cable TV Available

Listing and Financial Details

  • Assessor Parcel Number 028-032-05

Home Details

Home Type

Single Family

Year Built

Built in 1909

Lot Details

10,498 Sq Ft Lot

Parking

1

Listing Details

  • Type: Residential
  • Property Sub Type: Single Family Residence
  • Subtype Description: Detached
  • Directions To Property: E. Blithedale to Walnut
  • Lot Size Acres: 0.2410
  • Stories: 2
  • Levels: Two
  • ArchitecturalStyle: Craftsman
  • Special Features: None

Interior Features

  • Number Of Fireplaces: 2
  • Bedrooms: 4
  • Full Bathrooms: 3
  • Price Per Square Foot: 1649.24
  • Square Footage: 2486.00
  • Bathrooms: 3
  • Fireplace Features: Family Room, Gas Piped, Wood Burning, Other
  • Main Level: Kitchen, Living Room, Primary Bedroom
  • Spa Features: Spa/Hot Tub Built-In

Exterior Features

  • Lot Features: Flag Lot
  • Property Condition: Fixer

Garage/Parking

  • Parking Features: Detached, EV Charging, Garage Door Opener
  • Total Parking Spaces: 2.00
  • Garage Spaces: 1.00

Utilities

  • Cooling: MultiZone
  • Sewer: Public Sewer
  • Utilities: Cable Available, Internet Available, Natural Gas Available, Public
  • Water Source: Water District
  • Heating: MultiZone
  • Laundry Features: Inside Area, Upper Floor

Schools

  • Middle/Junior School District: Mill Valley

Lot Info

  • Assessor Parcel Number: 028-032-05
  • Lot Size Sq Ft: 10498.00

Building Info

  • Year Built: 1909

Multi Family

  • Second Unit Kitchen: Yes
  • Second Unit Occupied: No
  • Second Unit Partial Bathrooms: 0
  • Second Unit Type: Detached

MLS Schools

  • Senior High School District: Tamalpais Union
  • School District (County): Marin

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Oct 2, 2023
Closed on
Oct 20, 2023
Sold by
Sophia Kabler Cowley 2006 Trust and Brian J Cowley 2006 Trust
Bought by
Staudt Christopher and Ried Robin
Seller's Agent
Melissa Crawford
Redfin
Buyer's Agent
Susannah Searson
The House
List Price
$4,100,000
Sold Price
$4,100,000
Current Estimated Value
$4,690,956

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$590,956
Avg. Annual Appreciation
6.00%
Original Mortgage
$1,800,000
Outstanding Balance
$1,757,942
Interest Rate
7.12%
Mortgage Type
New Conventional
Estimated Equity
$2,933,014

Purchase Details

Closed on
Jan 24, 2022
Sold by
Kabler Cowley and Kabler Sophia
Bought by
Sophia Kabler Cowley 2006 Trust and Brian J Cowley 2006 Trust

Purchase Details

Closed on
Dec 11, 2006
Sold by
Cowley Brian J and Cowley Sophia Kabler
Bought by
Cowley Brian J and Cowley Sophia Kabler

Purchase Details

Closed on
Dec 21, 2005
Sold by
Cowley Brian
Bought by
Kabler Sophia

Purchase Details

Closed on
Apr 9, 2004
Sold by
Lindquist Victoria and Lindquist 1991 Living Trust
Bought by
Cowley Brian J

Purchase Details

Closed on
Aug 14, 1998
Sold by
Castro Clifford and Castro Debra A
Bought by
Sieck Gregory R and Sieck Barbara M

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$100,000
Interest Rate
7.12%
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
Not Available
List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Staudt Christopher $4,100,000 First American Title
Sophia Kabler Cowley 2006 Trust -- First American Title
Cowley Brian J -- None Available
Kabler Sophia -- --
Cowley Brian J $890,000 Fidelity National Title Co
Sieck Gregory R $1,364,000 First American Title Co
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Open Staudt Christopher $1,800,000
Previous Owner Sieck Gregory R $100,000
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
10/24/2023 10/24/23 Sold $4,100,000 0.0% $1,649 / Sq Ft
10/02/2023 10/02/23 Pending -- -- --
10/02/2023 10/02/23 For Sale $4,100,000 0.0% $1,649 / Sq Ft
11/01/2021 11/01/21 Rented $125 0.0% --
10/29/2021 10/29/21 Under Contract -- -- --
10/12/2021 10/12/21 For Rent $125 -99.0% --
05/14/2020 05/14/20 Rented $12,000 0.0% --
05/14/2020 05/14/20 For Rent $12,000 +9.1% --
08/12/2019 08/12/19 Rented $11,000 0.0% --
07/24/2019 07/24/19 Under Contract -- -- --
04/17/2019 04/17/19 For Rent $11,000 -- --
Source: Bay Area Real Estate Information Services (BAREIS)

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $51,680 $4,242,000 $2,499,000 $1,743,000
2024 $49,907 $4,100,000 $2,450,000 $1,650,000
2023 $26,212 $1,689,777 $1,024,882 $664,895
2022 $21,933 $1,646,649 $1,004,790 $641,859
2021 $23,190 $1,609,471 $985,095 $624,376
2020 $22,882 $1,592,976 $975,000 $617,976
2019 $21,212 $1,561,744 $955,882 $605,862
2018 $20,377 $1,531,126 $937,140 $593,986
2017 $22,847 $1,501,106 $918,765 $582,341
2016 $22,769 $1,471,676 $900,750 $570,926
2015 $20,939 $1,449,573 $887,220 $562,353
2014 $19,437 $1,421,180 $869,842 $551,338
Source: Public Records

Agents Affiliated with this Home

  • S

    Buyer's Agent in 2023

    Susannah Searson

    The House

    Section Image

  • L

    Buyer Co-Listing Agent in 2023

    Lisa Smith

    Engel & Völkers Mill Valley

    Section Image

  • N

    Buyer's Agent in 2020

    Non-Member 999999

    Non-member Office

See All Agents

Map

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 323923615

Bay Area Real Estate Information Services (BAREIS)

APN: 028-032-05

California Marin County Mill Valley 94941 Sycamore Park

20 Walnut Ave, Mill Valley, CA

Not Listed for Sale

Detached

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Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

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