San Francisco real property sales from the Multiple Listing Service are searchable by address, address range, neighborhood, property profile, real estate agent or agency. Property profiles show a street view and interior photographs. Select the agent link to view all properties for that agent on the MLS.
Trulia.com is more geographically far reaching, covering cities and towns nationwide but it isn’t as comprehensive as the MLS. Use the “advanced search” tool to restrict the search by address or to include multiple towns (there’s no county option).
Check for regional sites, such as Redfin, which covers the San Francisco Bay Area and Seattle, Washington, for more extensive listings and property options. Redfin MLS properties can be searched by address or neighborhood. Properties are plotted on a map, so you can view other nearby sales. The site also covers past property sales.