Terwilliger Land Survey Engineers provides boundary surveys, topographic surveys, ALTA/NSPS land title surveys, construction staking, parcel mapping, lot line adjustments, and specialty survey services for residential, commercial, construction, and development projects across California.
Whether you are buying property, preparing plans, resolving a boundary question, supporting a commercial transaction, or getting ready to build, our team helps you identify the right survey scope and move forward with confidence.
We help clients move forward with confidence by combining technical capability with practical service.
From boundary and topographic surveys to ALTA/NSPS work, construction layout, parcel mapping, and specialties, we support a broad range of land and project needs.
We prioritize clear communication and efficient scheduling so clients can keep acquisitions, design work, permitting, and construction moving.
Our work is built around accuracy, accountability, and the requirements of owners, developers, contractors, architects, engineers, and professionals.
We service Los Angeles, Orange County, San Diego County, and the Bay Area. We can support clients throughout all key California markets.
We provide land surveying and related mapping services for property owners, commercial clients, construction teams, and development professionals throughout California.
Boundary surveys help determine property lines, identify corners, evaluate easements and encroachments, and support property transactions, improvements, and dispute resolution.
Topographic surveys map elevations, contours, and existing site features to support planning, engineering, architecture, and construction decisions.
ALTA/NSPS land title surveys provide the detailed survey information often needed for commercial real estate transactions, financing, development, and title review.
Construction layout surveying helps translate plans into the field so structures, site improvements, and infrastructure elements are positioned according to design intent.
We support land division, lot line adjustments, parcel mapping, and subdivision-related survey needs with detailed, project-specific documentation.
Our capabilities also include route and right-of-way surveys, telecom and small-cell surveys, elevation certificates, flood certifications, as-builts, and additional specialty mapping services.
Our services are designed to support a broad mix of clients and project types, from single-property needs to larger commercial and infrastructure-related assignments.
Property Owners
Developers
General Contractors
Architects
Engineers
Title and Escrow Professionals
Telecom and Utility Project Teams
Commercial Real Estate Stakeholders
Public and Infrastructure-Related Projects
Whether the need is a property line survey, a commercial title survey, construction staking, or specialty field data, we tailor our work to the requirements of the project and the people depending on it.
At Terwilliger Land Survey Engineers, we believe that strong client relationships are built on trust, accountability, and consistent follow-through. We aim to deliver work that reflects technical excellence, professional communication, and respect for the timelines and goals that matter to each client.
We believe in doing what we say, standing behind our work, and contributing positively to the communities and environments in which we operate.
If you are planning a project, purchasing property, preparing for design or construction, or need help identifying the right type of survey, our team can help you get started. Share a few details about your property or project, and we’ll help guide the next step.
Property address or APN
Type of survey needed, if known
Project timeline
Any available deeds, title reports, or plans