Meet Fog City As-Builts: The Visual Historians of Your Building

If you’ve never worked in construction or architecture, chances are you’ve never heard of an “As-Built.” But once you know what they are, you’ll wonder how any remodel or upgrade happens without them.

We connected with the team at Fog City As-Builts, who’ve been serving the Bay Area for over 20 years, and here’s the simple version: they capture what actually got built—not just what was planned. Sounds obvious, but it’s not. Between change orders, construction surprises, and last-minute code updates, it’s incredibly common for the final version of a building to look very different from the original plans. 

That’s where Fog City comes in. 

Using 2D and 3D technology, they create precise drawings that reflect the building as it stands today—not what was originally imagined on paper. Their drawings are like a time capsule of every change that happened during construction. So when you’re clearing up a violation, getting ready to remodel again, applying for a permit, or just handing off plans to a contractor, you’ll have an accurate documentation of what’s there. 

Most of Fog City’s clients are architects, contractors, and homeowners getting ready to start a new renovation—or needing to make sense of an old one. About 70% of their work is residential, often coming through realtors, designers, or homeowners themselves. The other 30%? Commercial builders and developers who need to document changes across larger projects. Our Founder, Serina, can vouch for the high quality of their work. She regularly refers her clients to them for her own projects.

We love their tagline: “New World Technology, Old World Service.” They blend cutting-edge tech with a true craftsman’s attention to detail. It’s not flashy—but it’s absolutely essential.

Connect with Fog City As-Builts Now!

The Fog City team at work