Google street view image for 18 Topside Way, Mill Valley, CA 94941

Off market oct 2012 for $1.8M

$4,509,962

Est. refi paymentEst. refi $12,356/mo

•

3,898

sq ft

18 Topside Way, Mill Valley, CA 94941

About this home

18 Topside Way is a 3,898 square foot house on a 0.33 acre lot with 5 bedrooms and 5.5 bathrooms. - it last sold on October 15, 2012 for $1,835,000. Based on Redfin's Mill Valley data, we estimate the home's value is $4,509,962.

Single-familyProperty Type

1992Year Built

0.33 acresLot Size

$1,157Est. Price/Sq.Ft.

3 spacesParking

Source:Public Records

Redfin Estimate

$4,509,962

$2.7M since sold in October 2012$191K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.8% lower than the average sale price ($4.84M) of 3 comparable homes.

SOLD AUG 26, 2026
$6,207,000
A
4 beds3.5 baths4,820 sq ft
17 Cecilia Ct, Tiburon, CA 94920
SOLD APR 10, 2026
$4,111,110
B
4 beds5 baths3,905 sq ft
42 Vista Real, Mill Valley, CA 94941
SOLD MAY 19, 2026
$4,195,000
C
5 beds4 baths4,571 sq ft
17 Heron Dr, Mill Valley, CA 94941

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Earn from this home

Sell

$3,285,189

Est. take-home

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Refinance

Est. cash available

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Rent

$10,818/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

105.0%

+0.2% MoM

Median sale price

$2.0M

$31K MoM

Avg. days on market

19d

2 days MoM

Recently sold homes

16 MoM

New listings for sale

OPEN SAT, 1PM TO 4PM
$1,595,000
3 beds2 baths— sq ft
206 Cardinal Rd, Mill Valley, CA 94941
SHORT SALE
375 N Ferndale Ave, Mill Valley, CA 94941
$1,050,000
4 beds3 baths3,305 sq ft
375 N Ferndale Ave, Mill Valley, CA 94941
Coldwell Banker Realty
OPEN SAT, 1PM TO 4PM
$2,495,000
3 beds2.5 baths3,046 sq ft
75 Magee Ave, Mill Valley, CA 94941
OPEN SAT, 1PM TO 4PM
$1,295,000
3 beds2 baths1,358 sq ft
135 California Ave, Mill Valley, CA 94941
OPEN SUN, 12PM TO 2PM
$2,195,000
4 beds3 baths2,100 sq ft
305 Reed Blvd, Mill Valley, CA 94941
OPEN TODAY, 3PM TO 6PM
$1,475,000
2 beds2.5 baths1,702 sq ft
838 Autumn Ln, Mill Valley, CA 94941
HOT HOME
$3,495,000
4 beds3 baths3,207 sq ft
528 Montford Ave, Mill Valley, CA 94941
$2,300,000
4 beds2 baths2,070 sq ft
4 Longfellow Rd, Mill Valley, CA 94941
$1,995,000
3 beds1 bath1,508 sq ft
41 Walnut Ave, Mill Valley, CA 94941
See all

Provided by Redfin

Sale history for 18 Topside Way

Year

Property tax

Land + Additions

Assessment*

2025

$33,353 (+3.6%)

$1,381,600 + $1,311,947

$2,693,547

2024

$32,185 (+1.6%)

$1,354,518 + $1,286,230

$2,640,748

2023

$31,683 (+3.6%)

$1,327,964 + $1,261,013

$2,588,977

2022

$30,583 (+1.6%)

$1,301,927 + $1,236,289

$2,538,216

2021

$30,089 (+0.4%)

$1,276,407 + $1,212,054

$2,488,461

2020

$29,980 (+3.1%)

$1,251,382 + $1,188,291

$2,439,673

2019

$29,080 (+1.8%)

$1,238,556 + $1,176,114

$2,414,670

2018

$28,553 (+23.6%)

$1,214,279 + $1,153,059

$2,367,338

2016

$23,096 (+0.6%)

$1,167,133 + $1,179,857

$2,346,990

2015

$22,949 (+3.5%)

$1,144,253 + $764,569

$1,908,822

2014

$22,178

$1,104,994 + $738,336

$1,843,330

2013

$22,189 (−1.2%)

$1,104,994 + $738,336

$1,843,330

2012

$22,448 (+2.5%)

$1,100,000 + $735,000

$1,835,000

2011

$21,895 (+0.4%)

$1,342,809 + $553,817

$1,896,626

2010

$21,812 (+2.0%)

$1,316,482 + $542,959

$1,859,441

2009

$21,394 (+4.4%)

$1,306,649 + $538,904

$1,845,553

2008

$20,494

$1,309,755 + $540,185

$1,849,940

Tax history for 18 Topside Way

Year

Property tax

Land + Additions

Assessment*

2025

$33,353 (+3.6%)

$1,381,600 + $1,311,947

$2,693,547

2024

$32,185 (+1.6%)

$1,354,518 + $1,286,230

$2,640,748

2023

$31,683 (+3.6%)

$1,327,964 + $1,261,013

$2,588,977

2022

$30,583 (+1.6%)

$1,301,927 + $1,236,289

$2,538,216

2021

$30,089 (+0.4%)

$1,276,407 + $1,212,054

$2,488,461

2020

$29,980 (+3.1%)

$1,251,382 + $1,188,291

$2,439,673

2019

$29,080 (+1.8%)

$1,238,556 + $1,176,114

$2,414,670

2018

$28,553 (+23.6%)

$1,214,279 + $1,153,059

$2,367,338

2016

$23,096 (+0.6%)

$1,167,133 + $1,179,857

$2,346,990

2015

$22,949 (+3.5%)

$1,144,253 + $764,569

$1,908,822

2014

$22,178

$1,104,994 + $738,336

$1,843,330

2013

$22,189 (−1.2%)

$1,104,994 + $738,336

$1,843,330

2012

$22,448 (+2.5%)

$1,100,000 + $735,000

$1,835,000

2011

$21,895 (+0.4%)

$1,342,809 + $553,817

$1,896,626

2010

$21,812 (+2.0%)

$1,316,482 + $542,959

$1,859,441

2009

$21,394 (+4.4%)

$1,306,649 + $538,904

$1,845,553

2008

$20,494

$1,309,755 + $540,185

$1,849,940

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

Property details

Interior

Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Central

Fireplace Information
# of Fireplaces: 3
Has Fireplace

Exterior

Exterior Information
Foundation Type: Raised W/Crawlspace
Building Style Type: Contemporary
Building Construction Quality: Good
Exterior Wall: Stucco

Property Information
Subdivision Name: HARBOR POINT #2B
Living Sq. Ft: 3,885
Building Sq. Ft: 3,885
# of Units: 1
# of Stories: 1
Legal Description: LOT 95

Parking & Garage Information
# of Parking Spaces: 3
Garage/Parking Sq. Ft: 573

Lot Information
# of Buildings: 1
Land Sq. Ft: 14,514
Legal Lot Number: 95
Municipality Name: MILL VALLEY SCHOOL AREA (STRAW
Acres: 0.3332
Zoning Code: RSP-5.0
County Use Description: 1 FAMILY RESID

Utility Information
Sewer Type: Public
Water Service Type: Public

Financial

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

Public facts

Beds: 5
Baths: 5.5
Sq. Ft.: 3,898
Stories: 1.0
Parking Spaces: 3
Basement: No
Accessible: No
Lot Size: 0.33 acres
Style: Single Family Residential
Year Built: 1992
Year Renovated: 2018
County: Marin County
APN: 043-102-03
HOA Dues: —
Garage: Yes
Features: Views, Green

Home facts updated by owner on Dec 8, 2025

Around this home

Schools

Strawberry Point Elementary School

Public K-5 • Assigned • 1.0mi

10/10

Mill Valley Middle School

Public 6-8 • Assigned • 1.8mi

9/10

Tamalpais High School

Public 9-12 • Assigned • 1.4mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk 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 78° expected this year, 17 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

$4.28M – $5.18M

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OPEN SAT, 1PM TO 4PM

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OPEN SAT, 1PM TO 4PM

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OPEN TODAY, 3PM TO 6PM

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Home values near 18 Topside Way

Data from public records.

Address	Redfin Estimate
14 Topside Way, Mill Valley, CA 4 Beds \| 3 Baths \| 3121 Sq. Ft.	$3,724,251
2 Topside Way, Mill Valley, CA 3 Beds \| 3 Baths \| 2608 Sq. Ft.	$3,334,175

Address	Redfin Estimate
30 Topside Way, Mill Valley, CA 4 Beds \| 4 Baths \| 3596 Sq. Ft.	$4,269,559
22 Topside Way, Mill Valley, CA 4 Beds \| 4 Baths \| 4159 Sq. Ft.	$4,571,973

Address	Redfin Estimate
6 Topside Way, Mill Valley, CA 3 Beds \| 4 Baths \| 3128 Sq. Ft.	$3,807,541
10 Topside Way, Mill Valley, CA 4 Beds \| 3 Baths \| 2776 Sq. Ft.	$3,697,175

This data may not show owner updates. Learn more.

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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 18 Topside Way

Tax history for 18 Topside Way

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 18 Topside Way

More real estate resources