Bill O'Hara Land Surveyor Share: Surveyors Bill O'Hara Land Surveyor Visit Website Request Info 376 Colorado Dr. Cedar Creek, TX 78612 (512) 529-1689 About Map About Bill O’Hara is in a uniquely qualified position to assist real property owners, attorneys, title companies, and real estate professionals in locating land boundaries, serving as a consulting expert, a What's Nearby? Distance: 5 10 15 20 25 50 mi.