Sonoma County Land Surveying Built on 80 Years of Field Experience
BC Land Surveying is committed to delivering accurate, honest, and creative surveying solutions that maximize the value of every project. By combining technical precision with innovative thinking, we provide clients with reliable data and smarter outcomes they can build on with confidence.
BC LAND SURVEYING
Built by People Who Know What's at Stake
BC Land Surveying was started by two brothers, Thomas and William Billeter, who spent years working in the civil engineering field on land development and construction projects throughout Sonoma County. As professionals who relied on survey data for every critical project, they understood exactly what accurate, dependable surveying made possible. Starting a firm of their own, alongside other experienced professionals, was the natural next step.
That background is what BC Land Surveying is built on. Our team includes licensed Professional Land Surveyors and field professionals with more than 80 years of combined experience working across Sonoma, Marin, and Napa Counties. We know the terrain, the local agencies, and what it takes to produce deliverables that actually move a project forward. When you hire us, you're working with people who understand this process from every side and built their practice around doing it right.
OUR SERVICES
Surveying & Mapping Services for Every Project Stage
Whether you need a boundary survey, an ALTA, construction staking, or a FEMA elevation certificate, we handle every stage with the same standard of care.
Property & Boundary
Boundary surveys, ALTA/NSPS surveys, lot line adjustments, and subdivisions that establish legally defensible property lines. Work products that your title company, attorney, or engineer can use without sending it back.
Development & Construction
Topographic surveys, construction staking, land development mapping, and plot plans that give your contractors and engineers the data they need to design and build accurately from day one.
Regulatory & Compliance
FEMA elevation certificates, certificates of compliance, easement descriptions, and lot split documentation that satisfy Sonoma County, Marin County, and state agency requirements without the back-and-forth.
Specialized & Technology
Photogrammetric surveys, slope analysis maps, reservoir volume surveys, and expert witness testimony for complex projects where the data has to hold up under scrutiny.
A Simple Process Designed For Results
We know your project has a timeline. Our process is built to keep pace with it, clear communication from first contact through final deliverable, no hand-off gaps.
01
Describe Your Project and Site
Call us or send a request. Tell us the parcel, the county, and what you're trying to accomplish. We'll identify the right survey type and ask the questions that prevent surprises later.
02
Get a Straight Answer on Scope and Cost
We provide a written proposal with clear scope, realistic timeline, and honest pricing. No vague estimates you have to decode or line items that expand after you sign.
03
We Handle the Field and Research Work
Our licensed team conducts fieldwork, pulls the necessary records, and manages the technical process. You stay informed, we flag anything that affects your timeline before it becomes a problem.
04
Receive Deliverables Ready for What Comes Next
Maps, reports, and certifications formatted to meet the requirements of your specific use, whether that's a title company, a building department, or a federal agency.
Insights & Resources from BC Land Surveying
SERVICE AREA
Serving Sonoma County & Northern California
BC Land Surveying is headquartered in Santa Rosa and serves clients throughout Sonoma County, including Santa Rosa, Petaluma, Healdsburg, Sebastopol, Windsor, Rohnert Park, Cloverdale, and Cotati. We also work across Marin County and Napa County for projects that extend beyond county lines.
Sonoma County's mix of urban corridors, rural parcels, agricultural land, and coastal terrain creates surveying challenges that require genuine local knowledge. Our team works regularly with the Sonoma County Permit and Resource Management Department, local municipalities, and title companies throughout the region. That familiarity speeds up the process and keeps projects moving. If your project is somewhere in Northern California and you're not sure if we cover it, reach out and we'll give you a straight answer.
MEET THE TEAM
The People Behind the Precision
Thomas and William Billeter founded BC Land Surveying to bring surveying in-house and integrate it directly into their engineering and development work. They built the firm around what they valued most in a surveying partner: precision, responsiveness, and genuine problem-solving capability.
Our team includes licensed Professional Land Surveyors and experienced field professionals with more than 80 years of combined experience across Sonoma, Marin, and Napa Counties. We take on work we can do well and stand behind every deliverable we produce. Small enough to stay accountable, experienced enough to handle whatever your project demands.
Co-Founder
Thomas Billeter
Co-Founder
William Billeter
WHY CHOOSE US
Accurate Data
Honest Answers
Results You Can Build On
BC Land Surveying competes on quality, not price. Our clients are developers, real estate professionals, engineers, and property owners who value precision and want a surveying partner who moves at the pace their project demands. We built this firm specifically for them.
Every project we take on is handled by a licensed team that owns the work from first contact through final delivery. We communicate clearly, solve problems as they come up, and produce documentation that holds up, in the field, in the permitting office, and if it comes to it, in a legal proceeding. If that standard matters to you, tell us about your project.
