When buying, selling, or developing property in Idaho and Washington, understanding land surveys is essential. Two of the most commonly requested surveys—ALTA surveys and boundary surveys—serve different purposes and are used in different scenarios.
For real estate agents, commercial buyers, and residential clients, knowing when to recommend each type can save time, avoid legal issues, and ensure smooth closings.
At Selkirk-Cabinet Land Surveying, our licensed Idaho and Washington land surveyors often help clients navigate this decision. In this article, we’ll break down the key differences between ALTA and boundary surveys, explain when each is appropriate, and share practical tips you can use to guide your clients confidently.
Primary Search Intent: Informational + Transactional
Real estate agents and property buyers want to understand ALTA vs. boundary surveys to make informed decisions and may be seeking to hire a land surveyor.
Why Land Surveys Matter in Real Estate Transactions
Defining Property Lines and Legal Boundaries
Every property has legal boundaries defined in deeds and plats, but on-the-ground conditions don’t always match paper descriptions. Surveys identify:
- Exact property corners and lines
- Encroachments such as fences or structures over the line
- Easements, rights-of-way, and potential boundary disputes
This clarity is crucial during sales, development, and refinancing.
Reducing Legal Risk
Inaccurate or missing surveys can lead to boundary disputes, construction delays, and costly litigation. A proper survey ensures clean title and accurate legal descriptions, protecting both buyer and seller.
Meeting Lender and Title Requirements
Many title companies and lenders—especially for commercial transactions—require ALTA surveys to issue title insurance or approve financing. Residential buyers often rely on boundary surveys for clarity and peace of mind.
What Is a Boundary Survey?
Purpose of a Boundary Survey
A boundary survey determines the exact location of property lines based on legal descriptions and physical evidence. It’s typically used for:
- Residential real estate transactions
- Building or installing fences
- Resolving neighbor disputes
- Subdividing property
In Idaho and Washington, licensed land surveyors conduct these surveys according to state standards.
What It Includes
A standard boundary survey will:
- Locate and mark property corners with stakes or caps
- Measure boundary lines
- Prepare a drawing showing the surveyed lines, dimensions, and any visible encroachments
It’s a straightforward, cost-effective option for most residential buyers or owners.
When Agents Should Recommend It
Real estate agents might suggest a boundary survey when:
- A buyer wants to know exact property lines before closing
- Sellers want to resolve encroachment issues proactively
- Owners plan improvements near property boundaries
Example: A Sandpoint homeowner planned to build a fence and discovered through a boundary survey that the existing hedge encroached 3 feet onto a neighbor’s parcel. Catching this early avoided a future legal dispute.
What Is an ALTA Survey?
Purpose of an ALTA Survey
An ALTA/NSPS Land Title Survey is a comprehensive mapping product designed for commercial properties, large land transactions, or financing purposes. It adheres to strict national standards set by:
- American Land Title Association (ALTA)
- National Society of Professional Surveyors (NSPS)
These surveys combine boundary, title, and improvement information into one document for lenders, title companies, and attorneys.
What It Includes
An ALTA survey goes far beyond a simple boundary survey. It includes:
- Precise boundary lines and legal descriptions
- Easements, rights-of-way, and encroachments
- Locations of buildings, parking lots, utilities, and improvements
- Access points, zoning setbacks, and flood zone information
- Table A optional items such as topography or underground utilities
The result is a detailed map suitable for due diligence, title insurance, and development planning.
When Agents Should Recommend It
Recommend an ALTA survey when:
- A commercial buyer needs financing or title insurance
- Developers are planning multi-structure or multi-phase projects
- A property has complex easements or overlapping parcels
Example: A developer purchasing a 10-acre parcel outside Sandpoint, ID needed to confirm multiple utility easements and access roads. The ALTA survey provided the comprehensive data required by the lender and title company, avoiding delays.
Key Differences Between ALTA and Boundary Surveys
| Feature | Boundary Survey | ALTA Survey |
| Purpose | Define property lines for owners/buyers | Meet lender/title needs for commercial transactions |
| Scope | Property corners and boundary lines | Boundaries + easements, improvements, utilities, zoning |
| Regulatory Standards | State standards (ID/WA) | ALTA/NSPS national standards |
| Typical Use Case | Residential, small parcels | Commercial, development, refinancing |
| Cost & Time | Lower cost, faster turnaround | Higher cost, more detailed, longer timeline |
| Who Requires It | Buyers, owners, builders | Lenders, title companies, attorneys |
Cost vs. Detail
Boundary surveys are more affordable and faster, but they provide limited detail. ALTA surveys are more expensive but comprehensive, often required to satisfy lender and insurer requirements.
Legal Implications
An ALTA survey can reveal hidden easements or access issues that a boundary survey might not catch. This can significantly affect development plans and legal risk.
Geographic Context
In Idaho and Washington, unique issues such as irregular parcel shapes, historical easements, and mixed urban/rural zoning often make ALTA surveys especially valuable for commercial transactions.
Practical Tips for Real Estate Agents
Know When to Recommend Which Survey
Agents can build trust with clients by understanding survey types and making appropriate recommendations:
- Boundary survey → Best for residential buyers or small properties
- ALTA survey → Required for commercial financing, title insurance, or complex properties
Set Expectations Early
Inform clients about survey costs, timelines, and deliverables early in the transaction to prevent surprises later.
Partner with Trusted Surveyors
Working with reputable local professionals like Selkirk-Cabinet Land Surveying ensures surveys are completed accurately, on time, and in compliance with Idaho and Washington regulations.
FAQs: ALTA vs. Boundary Surveys
Do I always need an ALTA survey for commercial property?
In most cases, yes—especially if financing or title insurance is involved. Lenders typically require ALTA surveys to minimize risk.
How long does each type of survey take?
- Boundary surveys: A few days to a week, depending on property size
- ALTA surveys: Several weeks, depending on complexity and Table A items
Can a boundary survey be upgraded to an ALTA survey?
Yes. If the boundary data is already collected, a surveyor can often expand it to meet ALTA/NSPS standards, saving time and cost.
Final Thoughts
Understanding the difference between ALTA and boundary surveys allows real estate agents to better advise clients, avoid legal pitfalls, and facilitate smoother transactions.
Whether your client is buying a residential property in Sandpoint or a commercial development site in Washington, having a trusted partner matters.
Selkirk-Cabinet Land Surveying provides accurate, compliant land surveying in Idaho and Washington for residential, commercial, and development projects.
👉 Contact us today to schedule your ALTA or boundary survey and keep your transaction on track.
