At LACO Associates, we combine local knowledge with a regional reach. Our team of Professional Land Surveyors has well over 100 years of combined experience and has completed thousands of surveys throughout Northern California. From far Northeastern California to the North Valley, the North Coast and the North Bay, LACO Associates’ team can meet your surveying needs.
Leveraging this extensive experience and incorporating advanced technologies, we deliver high-quality services quickly and efficiently across Northern California. Whether you’re in our primary service areas in the North Bay counties of Sonoma, Napa, Lake, and Marin; the North Coast counties of Mendocino, Humboldt, and Del Norte; the North Valley counties of Butte, Colusa, Glenn, Tehama, and Shasta; or beyond in Plumas, Lassen, Modoc, Siskiyou, or Trinity County, LACO provides the same level of expertise and responsiveness for every project.
Technology
LACO’s survey crews utilize state-of-the-art Trimble Robotic Total Stations and GPS/GNSS units, allowing them to work effectively in any terrain. LACO’s technology also includes a fleet of uncrewed aerial vehicles (UAVs), or drones, equipped with LiDAR and photogrammetric sensors. We have discovered that combining UAV data with traditional survey methods yields excellent mapping for planning and design , providing greater detail than conventional methods alone. Additionally, by utilizing this technique we can provide a color orthometric photo as a standard deliverable.
Land Surveying Services
At LACO Associates, we provide professional land surveying services across Northern California, offering a comprehensive range of solutions for projects of all sizes. Combining decades of experience with advanced technology, our team delivers accurate, reliable data and the expertise needed to keep your project moving forward with confidence.
We offer a full range of surveying solutions, including:
- Boundary Surveys – Accurate property line establishment to resolve disputes, support transactions, and guide development
- Topographic Surveys – Detailed elevation and site mapping to support planning, engineering, and design
- Aerial Photogrammetry, LiDAR & Drone Surveys – High-resolution data collection for efficient project insights
- FEMA Elevation Certificates & LOMA Applications – Streamlined documentation to meet floodplain, lender, and regulatory requirements
- Subdivisions, Parcel Maps & Lot Line Adjustments – Expert support for property development and land use planning
- ALTA/NSPS Land Title Surveys & Legal Descriptions – Clear, compliant documentation for real estate transactions
- Construction Surveying Services – Precision staking, layout, and verification for contractors and builders
- Bathymetric Surveys – Underwater mapping and depth measurement to support marine, river, and reservoir projects
- Tribal Land Surveys – CFedS-certified surveyors providing specialized expertise in tribal lands, respecting cultural and legal requirements
- Federal Land Surveys – Comprehensive surveys to meet federal standards and regulations
- Master Plan Mapping & On-Call Agency Support – Flexible surveying solutions for long-term planning and public agencies
With decades of experience and advanced technology, LACO provides the precision and efficiency you need to plan, design, and build with confidence.















