Sold898d on marketHistoric · 117 yrs
20 Walnut Ave
Mill Valley, CA, 94941 • Sycamore/Tamalpais Park • Marin County
$4,100,000
$1640/sqft
4Beds
4Baths
2,500Sqft
0.24 acLot
1909Built
Property DNA
Contemporary Style
Built 1909 · 117 years of history
Market activity
Demand and pricing signals for this listing
13 views
People checking out this listing
898 days on market
Established listing
$1,640/sqft
Price per square foot
About this home
Single Family · Built 1909 · Historic
Charming renovated Craftsman style 3 bdrm, 3 bath home with detached 1 bedroom guest house on large level lot in the heart of Sycamore Park. The main level open floor plan features a chef's kitchen & spacious great room that spills out to the covered loggia w/ outdoor fireplace, b-b-q & level lawn. Private main level master suite w/ 2 bdrms & bath on 2nd level. Detached guest house w/ projection screen tv & home gym. Gorgeous level lawn w/ in ground hot tub & putting green.
Estimated monthly payment
Based on current rates
$26,123/month
Principal & Interest$20,656
Property Tax$4,100
Insurance$1,367
Down payment20% ($820,000)
3%50%
Est. 6.46% rate · 30yr fixed · $3,280,000 loan
Full calculator →At a glance
Key facts and listing details
TypeSingleFamily
Year Built1909
HeatingWall, Other
ParkingGarage - Attached
Lot10,500 sqft
Property
Home typeSingle Family
StyleContemporary
Year built1909
Systems
HeatingWall, Other
Parking & Outdoor
ParkingGarage - Attached
Lot10,500 sqft
Location & Tax
NeighborhoodSycamore/Tamalpais Park
Annual tax$51,680
Parcel02803205
Features & details
3 categories of property features
Interior Features
Heating
Wall
Other
Exterior Features
Exterior
Shingle (Not Wood)
Parking
Garage - Attached
Room details
1 room detailed
Dining Room
Listing insights
Market data and value estimates
StatusSold
Days on market898
Est. value$4,510,600
Est. rent$8,243/mo
Tax rate1.13%
Price/sqft$1640
Last sold$4,100,000
Tour days6
Views13
How are the schools in Mill Valley?
3 schools rated nearby
Location
Mill Valley, CA, 94941
Price history
12 events
DateEventPrice$/sqftSource
Oct 24, 2023Sold$4,100,000$1,640Public Record
May 27, 2020Listing Removed$12,000$5Compass
May 14, 2020Listed For Rent$12,000$5Compass
Oct 14, 2019Listing Removed$11,000$4Compass
Oct 11, 2019Listed For Rent$11,000$4Compass
Jul 27, 2019Listing Removed$11,000$4Compass
Jul 3, 2019Price Change$11,000$4Compass
Apr 18, 2019Listed For Rent$12,500$5Compass
Aug 29, 2009Listing Removed$2,695,000$1,078Morgan Lane Real Estate
Aug 7, 2009Listed For Sale$2,695,000$1,078Morgan Lane Real Estate
Apr 15, 2004Sold$890,000$356Public Record
Aug 21, 1998Sold$1,364,000$546Public Record
Sold$4,100,000
Oct 24, 2023•$1,640/sqft•Public Record
Listing Removed$12,000
May 27, 2020•$5/sqft•Compass
Listed For Rent$12,000
May 14, 2020•$5/sqft•Compass
Listing Removed$11,000
Oct 14, 2019•$4/sqft•Compass
Listed For Rent$11,000
Oct 11, 2019•$4/sqft•Compass
Listing Removed$11,000
Jul 27, 2019•$4/sqft•Compass
Price Change$11,000
Jul 3, 2019•$4/sqft•Compass
Listed For Rent$12,500
Apr 18, 2019•$5/sqft•Compass
Listing Removed$2,695,000
Aug 29, 2009•$1,078/sqft•Morgan Lane Real Estate
Listed For Sale$2,695,000
Aug 7, 2009•$1,078/sqft•Morgan Lane Real Estate
Sold$890,000
Apr 15, 2004•$356/sqft•Public Record
Sold$1,364,000
Aug 21, 1998•$546/sqft•Public Record
Tax history
25 years of records
YearTax paidAssessed value
Apr 10, 2025$51,680$4,242,000
Apr 10, 2024$67,835$4,100,000
Apr 10, 2023$26,212$1,689,777
Apr 10, 2022$22,042$1,646,649
Apr 10, 2021$23,190$1,609,471
Apr 10, 2020$22,882$1,592,976
Apr 10, 2019$21,212$1,561,744
Apr 10, 2018$20,377$1,531,126
Apr 10, 2017$22,847$1,501,106
Apr 10, 2016$22,769$1,471,676
Apr 10, 2015$20,939$1,449,573
Apr 10, 2014$19,437$1,421,180
Apr 10, 2013—$1,414,762
Apr 10, 2012—$1,387,031
Apr 10, 2011—$1,359,839
Apr 10, 2010—$1,230,577
Apr 10, 2009—$1,233,505
Apr 10, 2008—$1,199,523
Apr 10, 2007—$1,176,008
Apr 10, 2006—$1,152,956
Apr 10, 2005—$995,800
Apr 10, 2004—$79,951
Apr 10, 2003—$78,486
Apr 10, 2002—$76,948
Apr 10, 2001—$75,439
Nearby homes
Neighborhood details
Local context around this listing
Mill Valley, CA • Marin County
Nearby neighborhoods
AlmonteBayfront/Enchanted Knolls/Shelter RidgeBlithedale CanyonCascade CanyonHomestead ValleyMiller/MolinoScott ValleyStrawberryTamalpais ValleyWarner Canyon/Kite Hill
Nearby cities
Corte MaderaFairfaxKentfieldMill ValleyNovatoPetalumaSan AnselmoSan Rafael
Nearby zip codes
94941949429496594970
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