Commercial Real Estate Market in Mill Valley, CA
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
41 active listings and 329 off-market properties in Mill Valley, CA. Commercial property asks $922/SF to buy and $44.76/SF/Yr to lease.
Market Trends
Mill Valley, CA spans 37.7 square miles in Marin County, California. Figures below refresh monthly; last updated 30 September 2026.
Office
Office vacancy in Mill Valley, CA runs 20.8% across the West region in 2025, up from 11% in 2019.
Vacancy Rate % in West region
Retail
Retail vacancy in Mill Valley, CA runs 5.8% across the West region in 2025, down from 7% in 2020.
Vacancy Rate % in West region
Industrial
Industrial vacancy in Mill Valley, CA runs 7.9% across the West region in 2025, up from 3.7% in 2019. Nearly 3.2x the 2022 low of 2.5%.
Vacancy Rate % in West region
Multifamily
Multifamily space in Mill Valley, CA asks $667/SF to buy. Vacancy runs 8.6% across the West region in 2025, up from 7% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in West region
Market overview
Demographics & Economy
Mill Valley, CA has 31,480 residents in 13,860 households. Density runs 835 people per square mile. Median household income here is $210,217 and median gross rent $2,949 a month.
31,480
Population
13,860
Households
2.3
Avg Household Size
47
Median Age
77%
College-Educated
99%
High-School Grad
37.7 sq mi
ZIP Area
835
Density / Sq Mi
$210,217
Median Household Income
$100,535
Median Earnings
$2,949
Median Rent
$1,990,100
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Larkspur | — | — |
| San Rafael | — | $32.24 |
Commercial property in Mill Valley, CA asks $922/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Mill Valley?
Commercial property in Mill Valley, CA asks an average of $922 per square foot. The 5 most recent recorded sales traded at a median of $634/SF, so asking sits 45% above the achieved median. Multifamily carries the highest asking price at $667/SF.
How much does it cost to lease commercial space in Mill Valley?
Asking lease rates in Mill Valley, CA average $44.76 per square foot per year.
Where does Realmo's Mill Valley market data come from?
Realmo compiles Mill Valley, CA figures from 5 recent recorded sales, 24 active sale listings, 17 active lease listings, 329 tracked off-market properties. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 24 active for-sale and 17 active for-lease listings in Mill Valley, CA. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Refresh
- The monthly aggregates close at the end of the previous month, so 30 September 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at West region level, retail vacancy is reported at West region level and industrial vacancy is reported at West region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 30 September 2026 · report a data issue
