Off Market Aug 2023 for $2.1M

$3,304,877

Est. refi paymentEst. refi $13,594/mo

•

3,905

sq ft

21 Renz Rd, Mill Valley, CA 94941

About this home

Famed modernist Architect Donald Olsen designed this exceptional Mill Valley home in 1984. Soaring ceilings showcase the magnificent redwood and canyon views as you descend from the front door, passing an inviting window seat to take it all in. Exhibiting excellence of design that embraces the serenity of the modernist style which showcases the magic of this setting, 21 Renz is a 5 bedroom 3.5 bath, approx 3,900 square foot home w/spacious enchanting decks, 3 fireplaces, outdoor yard/patio area and a separate 1BR guest suite. Modernist in feel with walls of windows, views and light all around. The 4 bedrooms & 2 full baths are all on the same level, incl the primary suite with its cozy fireplace & deck. Guest suite or potential ADU includes 1 BR/1BA, a living room & its own entrance. 2-Car garage & space for 4 other cars. The beauty of the architecture shows everywhere; the home simply feels special! You feel completely removed as you sit back and enjoy the tranquility and sounds of nature, yet so close to town: .84 mile stroll to vibrant downtown Mill Valley for shopping, dining and festivals. Excellent MV schools. Come experience the essence of this famed architect designed home in the quaint hamlet of Mill Valley and make it your dream home to enjoy forever.

Single-familyProperty Type

1984Year Built

0.46 acresLot Size

$846Est. Price/Sq.Ft.

2 garage spacesParking

Listed by McCarthy Moe Group •DRE #01421997 • Compass

•415-250-4929 (agent)

•team@mccarthymoe.com (agent)

Bought with Joshua Deitch •DRE #01902477 • Coldwell Banker Realty

Redfin checked: a minute ago

•Source:BAREIS #323024006

Redfin Estimate

$3,304,877

$1.2M since sold in August 2023$11K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 19.9% lower than the average sale price ($4.13M) of 6 comparable homes.

SOLD MAY 29, 2026
$3,550,000
A
4 beds3.5 baths3,249 sq ft
200 Hazel Ave, Mill Valley, CA 94941
SOLD MAY 7, 2026
$6,887,500
B
4 beds4.5 baths4,661 sq ft
116 Cascade Dr, Mill Valley, CA 94941
SOLD MAR 27, 2026
$2,550,000
C
4 beds3.5 baths3,629 sq ft
169 Rose Ave, Mill Valley, CA 94941
SOLD MAR 27, 2026
$2,525,000
D
5 beds3 baths2,870 sq ft
410 Monte Vista Ave, Mill Valley, CA 94941
SOLD JUN 3, 2026
$7,050,000
E
4 beds4 baths4,220 sq ft
5 Marsh Dr, Mill Valley, CA 94941
SOLD APR 3, 2026
$2,200,000
F
4 beds3.5 baths2,325 sq ft
481 Cascade Dr, Mill Valley, CA 94941

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Earn from this home

Sell

$1,523,371

Est. take-home

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Refinance

Est. cash available

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Rent

$10,625/mo

Redfin rental estimate

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Market trends in 94941, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

108.7%

0.1% MoM

Median sale price

$2.4M

$7K MoM

Avg. days on market

10d

1 days MoM

Recently sold homes

134

20 MoM

New listings for sale

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4 beds3.5 baths3,232 sq ft
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OPEN SAT, 12PM TO 2PM
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OPEN TODAY, 10:30AM TO 1:30PM
$1,588,000
3 beds2 baths— sq ft
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OPEN SAT, 2PM TO 4PM
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3D WALKTHROUGH
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3 beds2 baths2,389 sq ft
240 Perry St, Mill Valley, CA 94941
OPEN TODAY, 10AM TO 1PM
$1,795,000
3 beds3 baths1,655 sq ft
642 Amaranth Blvd, Mill Valley, CA 94941
$888,999
3 beds2.5 baths1,374 sq ft
13 Wordsworth Ct, Mill Valley, CA 94941
eXp Realty of California Inc.
OPEN TODAY, 11AM TO 2PM
$2,450,000
4 beds3.5 baths2,370 sq ft
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3D WALKTHROUGH
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See all

Provided by Redfin

Sale history for 21 Renz Rd

Year

Property tax

Land + Additions

Assessment*

2025

$28,899 (+3.6%)

$1,326,510 + $884,340

$2,210,850

2024

$27,903 (+79.5%)

$1,300,500 + $867,000

$2,167,500

2023

$15,546 (+8.9%)

$1,275,000 + $850,000

$2,125,000

2022

$14,280 (+22.7%)

$208,893 + $683,298

$892,191

2021

$11,641 (−1.5%)

$204,798 + $669,900

$874,698

2020

$11,820 (+9.0%)

$200,783 + $656,768

$857,551

2019

$10,841 (−5.1%)

$198,718 + $650,023

$848,741

2018

$11,426 (+10.0%)

$194,822 + $637,278

$832,100

2017

$10,390 (+6.1%)

$187,258 + $612,536

$799,794

2016

$9,794 (−1.7%)

$187,258 + $612,536

$799,794

2015

$9,962 (+2.7%)

$183,586 + $600,526

$784,112

2014

$9,697 (+1.4%)

$177,287 + $579,920

$757,207

2013

$9,563 (+1.8%)

$177,287 + $579,920

$757,207

2012

$9,394 (+6.1%)

$176,486 + $577,302

$753,788

2011

$8,857 (−6.4%)

$173,027 + $565,986

$739,013

2010

$9,466 (+1.8%)

$169,635 + $554,890

$724,525

2009

$9,298 (+5.5%)

$168,368 + $550,745

$719,113

2008

$8,813

$168,768 + $552,056

$720,824

Tax history for 21 Renz Rd

Year

Property tax

Land + Additions

Assessment*

2025

$28,899 (+3.6%)

$1,326,510 + $884,340

$2,210,850

2024

$27,903 (+79.5%)

$1,300,500 + $867,000

$2,167,500

2023

$15,546 (+8.9%)

$1,275,000 + $850,000

$2,125,000

2022

$14,280 (+22.7%)

$208,893 + $683,298

$892,191

2021

$11,641 (−1.5%)

$204,798 + $669,900

$874,698

2020

$11,820 (+9.0%)

$200,783 + $656,768

$857,551

2019

$10,841 (−5.1%)

$198,718 + $650,023

$848,741

2018

$11,426 (+10.0%)

$194,822 + $637,278

$832,100

2017

$10,390 (+6.1%)

$187,258 + $612,536

$799,794

2016

$9,794 (−1.7%)

$187,258 + $612,536

$799,794

2015

$9,962 (+2.7%)

$183,586 + $600,526

$784,112

2014

$9,697 (+1.4%)

$177,287 + $579,920

$757,207

2013

$9,563 (+1.8%)

$177,287 + $579,920

$757,207

2012

$9,394 (+6.1%)

$176,486 + $577,302

$753,788

2011

$8,857 (−6.4%)

$173,027 + $565,986

$739,013

2010

$9,466 (+1.8%)

$169,635 + $554,890

$724,525

2009

$9,298 (+5.5%)

$168,368 + $550,745

$719,113

2008

$8,813

$168,768 + $552,056

$720,824

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

Public record

Public record
Permits

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.46 Acres

Year renovated

1984

Sq. Ft.

3,905

Year built

1984

Style

Single Family Residential

County

Marin County

APN

027-234-03

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Property details

Parking

Parking & Garage Information
Parking Total: 6
Parking Features: Enclosed, Garage Facing Front, Interior Access
Garage Spaces: 2

Interior

Bathroom Information
# of Bathrooms (Total): 4
# of Bathrooms (Full): 3
# of Bathrooms (Partial): 1
Master Bathroom Features: Shower Stall(s)

Bedroom Information
# of Bedrooms (Total): 5

Heating & Cooling
Cooling: None
Heating: Central, Fireplace(s), Wall Furnace

Interior Features
Fireplaces Total: 3
Fireplace Features: Family Room, Living Room
Flooring: Carpet, Simulated Wood, Tile, Vinyl, Wood
Interior Features: Cathedral Ceiling
Laundry Features: Dryer Included, Laundry Closet, Washer Included
Security Features: Carbon Mon Detector, Double Strapped Water Heater, Smoke Detector
# of Stories: 3

Room Information
Room Types: Dining Room, Family Room, Great Room, Guest Quarters, Kitchen
Dining Room Features: Formal Area
Family Room Features: Deck Attached, Great Room
Kitchen Features: Breakfast Area, Island, Kitchen/Family Combo, Pantry Closet, Quartz Counter
Living Room Features: Cathedral/Vaulted, Deck Attached, Sunken, View
Levels: Multi/Split
Main Level: Dining Room, Family Room, Garage, Kitchen, Living Room, Partial Bath(s), Street Entrance
Lower Level: Bedroom(s), Full Bath(s), Street Entrance
Upper Level: Garage, Street Entrance

Exterior

Exterior Features
Allows Horses: No

Pool Information
Has Private Pool: No
Has Spa: No

Property Information
ADU 2nd Unit: No
Property Type: Residential
Property Sub Type: Single Family Residence

Lot Information
Lot Size Square Feet: 20,125
Lot Size Acres: 0.462
Lot Size Source: Assessor Auto-Fill
Lot Features: Cul-De-Sac

Utilities

Utilities Information
Utilities: Natural Gas Connected
Sewer: Public Sewer

Location

HOA Information
Association YN: No

School Information
School District County: Marin
Elementary School District: Mill Valley
Middle Or Junior School District: Mill Valley
High School District: Tamalpais Union

Community Information
Senior Community: No

Public facts

Beds: 5
Baths: 4.0
Sq. Ft.: 3,905
Stories: —
Lot Size: 0.46 acres
Style: Single Family Residential
Year Built: 1984
Year Renovated: 1984
County: Marin County
APN: 027-234-03

Home facts updated by county records on Jul 13, 2026

Around this home

Schools
Places
Transit

Old Mill Elementary School

Public K-5 • Assigned • 0.5mi

10/10

Mill Valley Middle School

Public 6-8 • Assigned • 1.9mi

9/10

Tamalpais High School

Public 9-12 • Assigned • 2.3mi

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

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

2/10 Heat Factor

8 days above 83° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 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

$3.14M – $3.80M

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Home values near 21 Renz Rd

Data from public records.

Address	Redfin Estimate
10 Renz Rd, Mill Valley, CA 4 Beds \| 3 Baths \| 2096 Sq. Ft.	$2,003,482
25 Renz Rd, Mill Valley, CA 2 Beds \| 2.5 Baths \| 1350 Sq. Ft.	$1,577,852

Address	Redfin Estimate
41 Renz Rd, Mill Valley, CA 4 Beds \| 3 Baths \| 2491 Sq. Ft.	$2,817,006
39 Renz Rd, Mill Valley, CA 3 Beds \| 3.5 Baths \| 2463 Sq. Ft.	$3,274,148

Address	Redfin Estimate
29 Renz Rd, Mill Valley, CA 3 Beds \| 2 Baths \| 1928 Sq. Ft.	$2,320,130
38 Renz Rd, Mill Valley, CA 3 Beds \| 3 Baths \| 1520 Sq. Ft.	$2,260,121

Property information provided by BAREIS when last listed in 2023. This data may not match . 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 21 Renz Rd

Tax history for 21 Renz Rd

Public record

Property details

Around this home

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94941

Home values near 21 Renz Rd

More real estate resources