Houses for sale in Marin County over $5 million (as of October 10, 2026)

Houses for sale in Marin County over $5 million (as of October 10, 2026)

Marin County has 228 luxury homes listed for sale, with a median list price of $1,995,000 and average price per square foot of $1,159.43. Many of these are well above $5 million. Below are the highest-priced listings currently active, all sourced from the Marin County MLS via MarinCounty.com.

| Address | Town | Price | Beds | Baths | Sq Ft | Lot | Year Built | MLS | Listing Agent |
|---------|------|-------|------|-------|-------|-----|------------|-----|---------------|
| 1 Blanding Lane | Belvedere | $21,900,000 | 4 | 5 full / 2 half | 4,996 | 0.36 ac | New | 325021599 | Golden Gate Sotheby’s |
| 445 Belvedere Avenue | Belvedere | $19,880,000 | 4 | 5 full / 2 half | 8,131 | 0.67 ac | 2000 | 326008759 | Golden Gate Sotheby’s |
| 337 Belvedere Avenue | Belvedere | $17,000,000 | 6 | 7 full / 3 half | 11,200 | 0.54 ac | 2008 | 326006436 | Engel & Völkers |
| 172 Seadrift Road | Stinson Beach | $16,000,000 | 5 | 3 | 32,500* | 0.75 ac | 1983 | 326043133 | Compass |
| 27 Upper Road | Ross | $14,995,000 | 8 | 8 full / 1 half | 10,228 | 3 ac | 1992 | 326018966 | Golden Gate Sotheby’s |
| 300 Margarita Drive | San Rafael | $13,950,000 | 6 | 7 | 7,867 | 54.72 ac | 2002 | 326057465 | Real Brokerage Technologies |
| 81 Mount Tiburon Road | Tiburon | $13,500,000 | 5 | 4 full / 1 half | 4,501 | 0.95 ac | 1970 (renov.) | 326053863 | Golden Gate Sotheby’s |

\*The Stinson Beach property lists 32,500 sq ft under “Sq. Ft.” in the MLS; this may reflect total built area including outbuildings.

How to see all 228 listings over $5M
Go to the filtered results page:
https://www.marincounty.com/idx/results/?searchid=86957&sortby=price%20desc&minprice=5000000

You can further refine by town, beds, baths, acreage, and more using the “More Filters” button on that page.

• What I could not find
• A simple count of how many of the 228 listings are specifically above $5M (the filtered URL above shows them all).
• Listings from other brokerages’ private sites (e.g., Zillow, Redfin, Compass) that may not syndicate to this MLS feed.

• Sources
• Marin County luxury homes summary page (228 listings, median $1.995M) – MarinCounty.com
• Individual property detail pages for each address above (links in the table).