302 Seadrift Road sold for $3,400,000 on February 5, 2005. The asking
price was $3,500,000 and it was on the market for 21 days.
Here is a link to the webpage that contains the information:
West Bay Real Estate: Recent Sales (February 2005)
Scroll down the alphabetical list of communities to "Stinson Beach" to
find the information.
Here is a link to the main page of the "Recent Sales" data from that firm:
West Bay Real Estate: Sales Data
You can link from the page linked above to information on Marin County
homes sales for any month from January 2002 to the present.
I used a variety of Google searches to find the information. These
were among the most useful:
"stinson beach" "home sales"
"stinson beach" "seadrift rd OR road"
"seadrift rd OR road" "stinson beach" lagoon
Based on your clarification, I am certain that is the information you
are looking for. If anything is unclear, please ask for further
clarification before rating the answer.