D.C. Registered Surveyor At District Survey, we know that all planning, design, and construction projects require detailed and precise land surveying data to ensure engineers and architects have a thorough understanding of the job site. Contact us for a free quote! District Survey Provides: -Topographic Survey - ALTA/NSPS Survey - Boundary Survey - Construction Survey - Commercial Land Survey - Property Lines Survey - Wall Checks - Real State Survey - Location Survey - And Many More