According to our records, this business is located at 3199 Clay St. in San Francisco (in San Francisco County), California 94115, the location GPS coordinates are: 37.7891472 (latitude), -122.4454838 (longitude). Clay & Lyon Building is categorized under Bank Building Construction (SIC code 1542). Current estimates show that the unit has a sales volume of $1,752,000 and staff of approximately 4 people. You can contact the company by phone at (415) 776-2113.