Precise Topographic Surveys

Whether you are planning a residential addition in the East Bay or a large-scale commercial development in San Jose, a precise topographic survey is the essential first step. At Golden Gate Surveying, we provide high-accuracy 3D mapping that captures every detail of your land’s surface, from elevation changes to existing utility features.

Why You Need a Topo Survey

A topographic survey (or "topo") is more than just a map; it is a legal and technical foundation for your project. Architects and civil engineers rely on our data to:

• Establish Precise Contours: Understand the "lay of the land" to manage drainage and grading.

• Identify Existing Features: Locate trees, boulders, utility manholes, and existing structures.

• Ensure Permit Compliance: Meet the strict requirements of Bay Area building departments and planning commissions. This is especially important for new construction and ADU (Accessory Dwelling Units) projects.

Our Topographic Mapping Process

We utilize the latest in surveying technology—including robotic total stations and high-precision GPS—to deliver digital files (CAD or PDF) tailored to your project’s needs.

1. Site Analysis: We evaluate the terrain and project scope.

2. Field Data Collection: Our crew captures ground elevations and physical features.

3. Data Processing: We create a detailed map showing contours at the interval required (e.g., 1-foot or 2-foot intervals).

Serving the Entire San Francisco Bay Area

Based out of our central HQ, we provide topographic mapping services across:

• San Francisco & The Peninsula

• Oakland, Berkeley & the East Bay

• San Jose & Silicon Valley

• Marin County & The North Bay