A boundary survey is used to determine the location of property lines and define the true corners of a parcel of land as described in the applicable record information. Boundary surveys can also help identify easements, encroachments, and other conditions that may affect the use, improvement, or understanding of a property.
This type of survey is often an important step when a property owner, buyer, builder, or project team needs reliable information about where a parcel begins and ends, how improvements relate to the boundary, or whether site conditions may affect future plans.
Buying or selling property
Clarifying property line locations
Identifying true property corners
Planning a fence, wall, or site improvement
Preparing for construction or design work
Evaluating potential encroachments
Reviewing easements or access issues
Supporting due diligence for development or investment decisions
Resolving questions before permits or project planning begin
Depending on the scope of work and the conditions involved, a boundary survey may help document the location of property lines, parcel corners, easements, encroachments, and other visible or record-related conditions that affect the site.
The live Terwilliger site also notes that a boundary survey may show limitations imposed on the property by state or local regulations, which makes this type of service especially useful when clients need a more informed starting point for property use, improvements, or planning.
Property line locations
True property corners
Easements affecting the parcel
Potential encroachments
Boundary-related site conditions
Certain record or regulatory limitations affecting the property
Boundary survey needs can arise for many different reasons, and the right starting point often depends on the client’s goals. Terwilliger supports a broad range of users who may need reliable boundary information, including property owners, buyers, developers, contractors, architects, engineers, and related professionals.
Whether the purpose is due diligence, planning, construction coordination, title-related review, or simply understanding the true extent of a parcel, our goal is to provide dependable survey support that helps clients move forward with confidence.
Many clients come to a boundary survey page because they know they need clarity, but they may not yet know exactly what information is required or what type of survey support is most appropriate. That is normal. In many cases, the first step is simply to review the property details, understand the purpose of the request, and determine the scope needed to support the client’s goals.
If you are not sure whether a boundary survey is the right fit for your project, Terwilliger can help you start with the information you have and identify the next step.
To help our team understand your request more efficiently, it may be useful to provide any available property or project details when reaching out.
Property address
Assessor parcel number
Copy of deed or title report, if available
Any known site plans or improvement plans
A short description of why the survey is needed
Timeline or deadline, if applicable
A boundary survey is used to determine property lines and define the true corners of a parcel. It can also help identify easements, encroachments, and other conditions affecting the property. That aligns closely with how Terwilliger currently describes the service on its live site.
Boundary surveys are commonly requested when buying property, planning improvements, preparing for construction, reviewing title issues, clarifying lot lines, or evaluating possible encroachments.
Yes. One of the main reasons clients request a boundary survey is to better understand the location of their property lines and true property corners.
A property address, parcel number, deed, title report, plans, and a short explanation of the need can all be helpful, though clients can still reach out even if they do not have all of those items yet.
No. Many clients start with questions rather than certainty. If you are not sure whether a boundary survey is the correct service, Terwilliger can review the basic details and help point you in the right direction.
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