21 Renz Road, Mill Valley, CA 94941
OFF MARKET

21 Renz Road
Mill Valley, CA 94941

Cascade Canyon
  • 5 Beds
  • 3.5 Baths
  • 3,905 sqft (on 0.46 acres)

$2,687,300

Trulia Estimate
as of Jul 15, 2026
Est. Refi. Payment $13,698/mo*
Refinance Your Home

$2,687,300

Trulia Estimate
as of Jul 15, 2026
Est. Refi. Payment $13,698/mo*
Refinance Your Home
5 Beds
3.5 Baths
3,905 sqft
(on 0.46 acres)

Local Information

  • Map ViewExplore the area around 21 Renz Road.
  • Schools5 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Description

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.
21 Renz Road, Mill Valley, CA 94941 is a 5 bedroom, 4 bathroom, 3,905 sqft single-family home in Cascade Canyon, built in 1984. It last sold for $2,125,000 on Aug 31, 2023 (7% below the $2,280,000 asking price). It is currently off market. The Trulia Estimate is $2,687,300, with a rent estimate of $14,000/month.
Contact this Building
Property Website

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
180+ days ago

Home Details for 21 Renz Road

Active Status

MLS Status: Closed

Interior Features

Interior Details
Number of Rooms: 7Types of Rooms: Bedroom, Master Bathroom, Bathroom, Dining Room, Family Room, Kitchen, Living Room
Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 3905 Square Feet
Appliances & Utilities
Utilities: Natural Gas Connected, PublicAppliances: Dryer, WasherDryerLaundry: Laundry ClosetWasher
Heating & Cooling
Heating: Central,Fireplace(s),Wall FurnaceNo CoolingAir Conditioning: NoneHas HeatingHeating Fuel: Central
Fireplace & Spa
Number of Fireplaces: 3Fireplace: Family Room, Living Room, Master BedroomHas a Fireplace
Windows, Doors, Floors & Walls
Flooring: Carpet, Simulated Wood, Tile, Vinyl, Wood
Levels, Entrance, & Accessibility
Stories: 3Levels: Multi/SplitFloors: Carpet, Simulated Wood, Tile, Vinyl, Wood
View
Has a ViewView: Ridge, Trees/Woods
Security
Security: Carbon Monoxide Detector(s), Double Strapped Water Heater, Smoke Detector(s)

Exterior Features

Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2Open Parking Spaces: 4No CarportHas a GarageNo Attached GarageHas Open ParkingParking Spaces: 6Parking: Enclosed,Garage Faces Front,Inside Entrance,Uncovered Parking Spaces 2+
Water & Sewer
Sewer: Public Sewer

Property Information

Year Built
Year Built: 1984
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: DetachedArchitecture: Contemporary,Modern/High Tech
Building
Not Attached Property
Property Information
Parcel Number: 02723403

Price & Status

Price
List Price: $2,280,000
Status Change & Dates
Possession Timing: Close Of Escrow

Location

Direction & Address
City: Mill Valley
School Information
Elementary School District: Mill ValleyJr High / Middle School District: Mill ValleyHigh School District: Tamalpais Union

Building

Building Area
Building Area: 3905 Square Feet

Community

Not Senior Community

HOA

Association for this Listing: Marin CountyNo HOA

Lot Information

Lot Area: 0.46 acres

Documents

Disclaimer: All data, photos, visualizations, and information regarding a property, including the property's compliance with state and local legal requirements and all measurements and calculations of area, have been obtained from various sources, and may include such material that has been generated by use of artificial intelligence. Such information and material have not been and will not be verified for accuracy by the listing broker or the multiple listing service, and are not guaranteed as complete, accurate or reliable. Such information and material should be independently reviewed and verified for accuracy. This information and material are intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Listing Info

Special Conditions: Trust

Mobile R/V

Mobile Home Park
Mobile Home Units: Feet

Miscellaneous

Mls Number: 323024006Listing Url
Last check for updates: about 2 hours ago
Listed by McCarthy + Moe Group DRE #01421997, (415) 846-9538
Compass, (415) 805-2900
Bought with: Joshua Deitch DRE #01902477, (415) 572-5433, Coldwell Banker Realty, (415) 388-5060
Originating MLS: Marin County
Source: BAREIS, MLS#323024006

Price History for 21 Renz Road

DatePriceEventSource
08/31/2023$2,125,000Sold
BAREIS #323024006
08/21/2023$2,080,000PendingBAREIS #323024006
08/18/2023$2,080,000PendingToActiveBAREIS #323024006
08/07/2023$2,080,000PendingBAREIS #323024006
05/31/2023$2,280,000Listed For SaleBAREIS #323024006

Market trends in Mill Valley

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$2.4M
$295KMoM
Sale-to-List Price
108.3%
3.0%MoM
Price per sq ft
$1.08K
$70MoM
Available listings
54
25MoM
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Property Tax and Assessment

Year2025
Tax$28,899
Assessment$2,167,500
Home facts updated by county records

Comparable Sales for 21 Renz Road

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
410 Monte Vista Avenue, Mill Valley, CA
0.24
Single-Family Home
$2,525,000
03/27/26
5
3
2,870
169 Rose Avenue, Mill Valley, CA
0.24
Single-Family Home
$2,550,000
03/27/26
4
3.5
3,629
39 Renz Road, Mill Valley, CA
0.08
Single-Family Home
$2,850,000
04/10/26
3
3.5
2,463
200 HAZEL Avenue, Mill Valley, CA
0.24
Single-Family Home
$3,550,000
05/29/26
4
3.5
3,249
4 Wainwright Place, Mill Valley, CA
0.11
Single-Family Home
$1,770,000
10/06/25
4
2.5
2,350
300 Hazel Avenue, Mill Valley, CA
0.11
Single-Family Home
$1,800,000
03/09/26
3
2
1,884
3 Wainwright Place, Mill Valley, CA
0.08
Single-Family Home
$2,150,000
08/22/25
2
2
1,906
481 Cascade Drive, Mill Valley, CA
0.43
Single-Family Home
$2,200,000
04/03/26
4
3.5
2,325
151 Tamalpais Avenue, Mill Valley, CA
0.39
Single-Family Home
$2,825,000
03/23/26
4
3
2,065
390 Panoramic Highway, Mill Valley, CA
0.55
Single-Family Home
$3,300,000
07/25/25
4
3.5
3,692

Nearby homes

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Assigned Schools

These are the assigned schools for 21 Renz Road.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Cascade Canyon
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Cascade Canyon

At least 5 Trulia users voted on each feature.

  • 92 % Say car is needed

  • 91 % Say it's dog friendly

  • 91 % Say people would walk alone at night

  • 89 % Say it's walkable to grocery stores

  • 86 % Say there's wildlife

  • 83 % Say it's quiet

  • 80 % Say it's walkable to restaurants

  • 80 % Say they plan to stay for at least 5 years

  • 71 % Say neighbors are friendly

  • 70 % Say parking is easy

  • 70 % Say yards are well-kept

  • 67 % Say there's holiday spirit

  • 57 % Say kids play outside

  • 29 % Say there are community events

  • 20 % Say there are sidewalks

  • 14 % Say streets are well-lit

Sourced by Trulia users. Learn more about our methodology.
  • Tylernewby
    "Although there aren’t many sidewalks in the neighborhood, there is easy access to trails, for and quiet low-traffic streets for dog walking."
    0
    Flag
  • Jarion
    "Fall Arts Festival, Djangofest, Marin Theatre Company, Comedy Night, Mountain Play, marin Shakespeare Theater, Mill Valley Film Festival, Free comedy Night in the street, The Dipsea Run, Wine Festival, Winter Festival"
    2
    Flag
  • Jarion
    "Mill Valley is Dog Town. The dog parks are the best in the world right along the bay. Shop owners have water for dogs; many have treats for them, too. We have thousands of dogs here!"
    1
    Flag
  • Laekasfamily
    "it has outstanding access to trails and parks. the views from this part of Mill Valley are extraordinary. there are a nice mix of ling time neighbors and new neighbors. the weather here is particularly warm and sunny."
    0
    Flag
  • Todd G.
    "The neighbors are friendly and the views are great. this neighborhood is positioned in the middle of the Dipsea, Cypress, and Old Pipeline Trails, so running, hiking, and biking is just out your front door. In the center of the neighborhood there's a large permanent designated Open Space Park Area that used to be the Old Mill Valley Reservoir that people, kids, and dogs walk and play in. Their are only 12 houses on the private road, so there's not a lot of traffic and it's quiet and peaceful. Once a year there's an annual neighborhood block party at the end of Edgewood Ave. "
    0
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

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Explore by feature - Pet Friendly

18 pet-friendly rentals in Mill Valley, CA

Explore by feature - Garage

16 rentals with a garage in Mill Valley, CA

Explore by feature - Air Conditioning

12 rentals with air conditioning in Mill Valley, CA

Explore by feature - Pool

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Explore by feature - Washer/dryer

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Homes for sale near 21 Renz Road

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Off Market Homes Near 21 Renz Road

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All data, photos, visualizations, and information regarding a property, including the property's compliance with state and local legal requirements and all measurements and calculations of area, have been obtained from various sources, and may include such material that has been generated by use of artificial intelligence. Such information and material have not been and will not be verified for accuracy by the listing broker or the multiple listing service, and are not guaranteed as complete, accurate or reliable. Such information and material should be independently reviewed and verified for accuracy. This information and material are intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.