Contact Dennis J. O'Connor Design Associates


Dennis J. O’Connor Design Associates LLC specializes in complete residential building design services. Since 1978, we have designed over 400 projects in Northern California, including Atherton, Portola Valley, Menlo Park, Palo Alto, Los Altos, Los Altos Hills, Woodside, Danville, Tiburon, and Lake Tahoe. We respect each client’s dreams for a distinctive home and provide strong support throughout the design process.