Before you design a single line, you need to know exactly what you're working with. Site documentation professionals give you the foundation every other phase depends on.
Find Site Professionals →The biggest mistakes in preconstruction happen at the beginning — not the end. Homeowners skip the site documentation phase to save money, then pay for it when their designer has to revise drawings, their structural engineer can't stamp plans without a soils report, or their permit gets rejected because the setbacks were measured wrong.
Site documentation is not optional. It's the foundation every single professional after you depends on. A thorough site survey and accurate as-built documentation saves time and money at every phase downstream.
For existing homes and structures, as-built documentation tells your designer what they're actually working with — not what was permitted 40 years ago. For new construction, a boundary survey establishes exactly where you can build. For hillside or sensitive sites, a geotechnical report tells your structural engineer what the soil can actually support.
A licensed land surveyor establishes the legal boundaries of your property, locates existing structures, easements, and encroachments, and produces a legally recorded plat map. Their work defines exactly where your property begins and ends and where you can legally build.
3D scanning specialists use LiDAR technology to capture precise measurements of existing structures — walls, ceilings, openings, mechanical systems — and convert them into accurate digital models. The result is a point cloud or BIM model your designer and engineer can work directly from, eliminating the need for manual measuring.
As-built specialists physically measure and document the existing conditions of a structure — producing accurate floor plans, elevations, and sections of what's actually built, not what was permitted. This is critical for any renovation or addition where the designer needs to know what they're working with before they start designing.
Geotechnical engineers analyze the soil conditions on your site through borings and lab testing, then provide a report that tells your structural engineer what the soil can support and how to design the foundation. In California — with its seismic activity, expansive soils, and hillside terrain — this is often a critical and sometimes required step.
Every professional after Phase 1 depends on the work done here. Getting this right saves time and money at every step downstream.