Google street view image for 66 Shell Rd, Mill Valley, CA 94941

Off market jul 2020 for $1.3M

$1,981,639

Est. refi paymentEst. refi $11,061/mo

•

2 ba

•

1,248

sq ft

66 Shell Rd, Mill Valley, CA 94941

About this home

66 Shell Rd is a 1,248 square foot house on a 4,070 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on July 01, 2020 for $1,323,000. Based on Redfin's Mill Valley data, we estimate the home's value is $1,981,639.

Single-familyProperty Type

1935Year Built

4,070 sq ftLot Size

$1,588Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,981,639

$659K since sold in July 2020$198K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 18.5% lower than the average sale price ($2.43M) of 5 comparable homes.

SOLD SEP 28, 2026
$2,495,000
A
4 beds2 baths2,085 sq ft
60 Mesa Ave, Mill Valley, CA 94941
SOLD APR 20, 2026
$1,950,000
B
4 beds2 baths1,395 sq ft
290 Sycamore Ave, Mill Valley, CA 94941
SOLD SEP 29, 2026
$3,415,000
C
4 beds2 baths1,917 sq ft
114 Lomita Dr, Mill Valley, CA 94941
SOLD MAY 12, 2026
$2,400,000
D
3 beds2 baths1,516 sq ft
102 Nelson Ave, Mill Valley, CA 94941
SOLD JUN 17, 2026
$1,900,000
E
4 beds1.5 baths1,643 sq ft
283 E Blithedale Ave, Mill Valley, CA 94941

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Earn from this home

Sell

$950,603

Est. take-home

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Est. cash available

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Rent

$6,081/mo

Redfin rental estimate

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Market trends in 94941, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.8%

2.4% MoM

Median sale price

$2.0M

$205K MoM

Avg. days on market

21d

6 days MoM

Recently sold homes

12 MoM

New listings for sale

OPEN TODAY, 2PM TO 4PM
$1,475,000
2 beds2.5 baths1,702 sq ft
838 Autumn Ln, Mill Valley, CA 94941
OPEN SUN, 2PM TO 4PM
$3,495,000
4 beds3 baths3,207 sq ft
528 Montford Ave, Mill Valley, CA 94941
OPEN SUN, 12PM TO 4PM
$2,300,000
4 beds2 baths2,070 sq ft
4 Longfellow Rd, Mill Valley, CA 94941
OPEN TODAY, 1PM TO 4PM
$2,250,000
4 beds3.5 baths2,577 sq ft
550 Edgewood Ave, Mill Valley, CA 94941
OPEN TODAY, 11:30AM TO 1:30PM
$1,995,000
3 beds1 bath1,508 sq ft
41 Walnut Ave, Mill Valley, CA 94941
OPEN TODAY, 2PM TO 4PM
$2,250,000
2 beds3 baths1,898 sq ft
17 De Silva Island Dr, Mill Valley, CA 94941
OPEN TODAY, 1PM TO 4PM
$1,695,000
3 beds2 baths1,350 sq ft
251 Flamingo Rd, Mill Valley, CA 94941
OPEN TODAY, 2PM TO 4PM
$1,995,000
4 beds3 baths1,983 sq ft
470 Wellesley Ave, Mill Valley, CA 94941
$1,925,000
2 beds2 baths1,890 sq ft
425 Montford Ave, Mill Valley, CA 94941
See all

Provided by Redfin

Sale history for 66 Shell Rd

Year

Property tax

Land + Additions

Assessment*

2025

$20,253 (+3.5%)

$993,654 + $466,879

$1,460,533

2024

$19,578 (+1.7%)

$974,178 + $457,728

$1,431,906

2023

$19,254 (+3.4%)

$955,080 + $448,754

$1,403,834

2022

$18,623 (+1.6%)

$936,360 + $439,959

$1,376,319

2021

$18,323 (+149.6%)

$918,000 + $431,332

$1,349,332

2020

$7,341 (+2.2%)

$900,000 + $422,875

$1,322,875

2019

$7,184 (+7.6%)

$223,369 + $83,590

$306,959

2018

$6,675 (+5.7%)

$218,991 + $81,952

$300,943

2017

$6,313 (+6.2%)

$210,489 + $78,770

$289,259

2016

$5,944 (+12.3%)

$210,489 + $78,770

$289,259

2015

$5,293 (+3.6%)

$206,362 + $77,226

$283,588

2014

$5,107 (+0.9%)

$199,282 + $74,576

$273,858

2013

$5,061 (+6.9%)

$199,282 + $74,576

$273,858

2012

$4,735 (+3.6%)

$198,382 + $74,239

$272,621

2011

$4,569 (+2.2%)

$194,493 + $72,784

$267,277

2010

$4,471 (+5.9%)

$190,680 + $71,357

$262,037

2009

$4,221 (+8.1%)

$189,255 + $70,824

$260,079

2008

$3,903

$189,705 + $70,992

$260,697

Tax history for 66 Shell Rd

Year

Property tax

Land + Additions

Assessment*

2025

$20,253 (+3.5%)

$993,654 + $466,879

$1,460,533

2024

$19,578 (+1.7%)

$974,178 + $457,728

$1,431,906

2023

$19,254 (+3.4%)

$955,080 + $448,754

$1,403,834

2022

$18,623 (+1.6%)

$936,360 + $439,959

$1,376,319

2021

$18,323 (+149.6%)

$918,000 + $431,332

$1,349,332

2020

$7,341 (+2.2%)

$900,000 + $422,875

$1,322,875

2019

$7,184 (+7.6%)

$223,369 + $83,590

$306,959

2018

$6,675 (+5.7%)

$218,991 + $81,952

$300,943

2017

$6,313 (+6.2%)

$210,489 + $78,770

$289,259

2016

$5,944 (+12.3%)

$210,489 + $78,770

$289,259

2015

$5,293 (+3.6%)

$206,362 + $77,226

$283,588

2014

$5,107 (+0.9%)

$199,282 + $74,576

$273,858

2013

$5,061 (+6.9%)

$199,282 + $74,576

$273,858

2012

$4,735 (+3.6%)

$198,382 + $74,239

$272,621

2011

$4,569 (+2.2%)

$194,493 + $72,784

$267,277

2010

$4,471 (+5.9%)

$190,680 + $71,357

$262,037

2009

$4,221 (+8.1%)

$189,255 + $70,824

$260,079

2008

$3,903

$189,705 + $70,992

$260,697

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Building Style Type: Contemporary
Building Construction Quality: Average

Property Information
Subdivision Name: ALTO
Living Sq. Ft: 1,248
Building Sq. Ft: 1,248
# of Units: 1
Legal Description: BLK A LOT 5

Parking & Garage Information
Garage/Parking Sq. Ft: 260

Lot Information
# of Buildings: 1
Land Sq. Ft: 4,070
Legal Lot Number: 5
Legal Block Number: A
Municipality Name: MILL VALLEY SCHOOL AREA (ALTO)
Acres: 0.0934
County Use Description: 1 FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026
Tax Area: MILL VALLEY SCHOOL AREA (ALTO)

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,248
Stories: —
Lot Size: 4,070 square feet
Style: Single Family Residential
Year Built: 1935
Year Renovated: 1942
County: Marin County
APN: 033-091-29

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Edna Maguire Elementary School

Public K-5 • Assigned • 0.2mi

10/10

Mill Valley Middle School

Public 6-8 • Assigned • 0.7mi

9/10

Tamalpais High School

Public 9-12 • Assigned • 1.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

6/10 Flood Factor

Estimated 69-77% chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

8 days above 83° expected this year, 19 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

13 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Mill Valley, CA • 94941

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.6 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.6 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.88M – $2.28M

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OPEN TODAY, 11:30AM TO 1:30PM

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3 beds1 bath1,508 sq ft

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OPEN TODAY, 2PM TO 4PM

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2 beds3 baths1,898 sq ft

17 De Silva Island Dr, Mill Valley, CA 94941

OPEN TODAY, 1PM TO 4PMVIDEO TOUR

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3 beds2 baths1,350 sq ft

251 Flamingo Rd, Mill Valley, CA 94941

OPEN TODAY, 2PM TO 4PM

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Home values near 66 Shell Rd

Data from public records.

Address	Redfin Estimate
74 Shell Road, Mill Valley, CA 4 Beds \| 3 Baths \| 2112 Sq. Ft.	$2,274,253
61 Shell Road, Mill Valley, CA 3 Beds \| 1 Baths \| 2744 Sq. Ft.	$2,303,803

Address	Redfin Estimate
72 Shell Road, Mill Valley, CA 2 Beds \| 1 Baths \| 825 Sq. Ft.	$1,398,266
67 Shell Road, Mill Valley, CA 2 Beds \| 1.5 Baths \| 1242 Sq. Ft.	$1,969,976

Address	Redfin Estimate
63 Shell Road Unit A, Mill Valley, CA 5 Beds \| 5 Baths \| 3605 Sq. Ft.	$3,635,992
59 Shell Road, Mill Valley, CA 4 Beds \| 4 Baths \| 3294 Sq. Ft.	$3,677,922

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94941, CA

Sale history for 66 Shell Rd

Tax history for 66 Shell Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94941

Home values near 66 Shell Rd

More real estate resources