Land surveys are important legal documents. If you own property or plan to buy some, you should understand the different types of land surveys. Each type serves a different purpose. Some surveys focus on property boundaries. Others map the ground elevation. Some surveys verify that buildings are in the right place. Knowing which type you need can save you time and money.
This guide explains the main types of land surveys used and helps you figure out which one you need.
Boundary Surveys: Finding Your Property Lines
A boundary survey locates the exact corners and lines of your property. Surveyors find markers called monuments, which are usually buried metal pipes or stones. These markers sit at the corners of your land. The surveyor measures the distances between corners and creates a map showing where your property begins and ends.
Boundary surveys work well when you need to know your exact property limits. If you plan to build a fence, this survey tells you where you can build it. If you have a dispute with a neighbor about the property line, a boundary survey provides legal proof of where the line actually sits.
In Iowa, boundary surveys typically take 3 to 7 days. The surveyor may need extra time if the property corners are hard to find or buried under brush. If your property deed is very old, the surveyor might spend extra time researching old records.
ALTA Surveys: The Detailed Option
ALTA stands for American Land Title Association. An ALTA survey is much more detailed than a boundary survey. In addition to finding property lines, an ALTA survey shows utility lines like water, sewer, and electric. It marks easements, which are areas where other people have the right to use your land. It also shows buildings, driveways, and other structures on the property.
ALTA surveys follow national standards that lenders and title companies accept everywhere. When you refinance a house or buy a commercial property, lenders usually require an ALTA survey. Title companies use ALTA surveys to provide insurance for your property.
An ALTA survey takes longer than a boundary survey because the surveyor must research more information. The surveyor contacts utility companies to find where lines are located. They review title documents to find easements and rights. This process typically takes 7 to 14 days.
The main difference between an ALTA and a boundary survey is scope and detail. A boundary survey answers one question: where is my property line? An ALTA survey answers many questions: where is my property line, what utilities cross my land, who has rights to parts of my property, and are there any legal issues I should know about?
Topographic Surveys: Mapping the Ground
A topographic survey shows the shape and elevation of your land. It includes natural features like trees and streams. It shows man-made features like roads and buildings. The surveyor draws lines on the map called contour lines. These lines show where the ground is higher and where it slopes down.
Topographic surveys are essential for development projects. If you want to build a house, a shopping center, or a parking lot, you need to know how the land slopes. The slope affects where you can build, how water will drain, and how much dirt you might need to move.
Topographic surveys are useful if you have drainage problems or flooding concerns. The survey shows how water flows across your property. This information helps you plan solutions.
Many topographic surveys now use drone technology. Drones with special cameras can map large areas quickly and accurately. Drone surveys often cost less than traditional surveys, especially if your property is large or hard to access.
Mortgage Surveys: Required for Home Purchases
A mortgage survey is a simplified boundary survey. Banks and lenders use it to verify that buildings on your property sit within your property lines. The mortgage survey also confirms that the property matches the legal description in the deed.
When you buy a house, your lender almost always requires a mortgage survey before closing. The lender wants to make sure the house you are buying actually sits on the land you are buying. The survey also checks that you are not building too close to the street or violating zoning rules.
Mortgage surveys are faster and less expensive than boundary surveys because they are less detailed. They typically take 3 to 5 days.
Construction Surveys: Staking Out Building Projects
A construction survey marks exactly where a building should go. Before workers can dig a foundation or pour concrete, they need to know where to dig. The surveyor places stakes and marks in the ground to show the building corners. The surveyor also marks setback lines, which show how far from the property line the building must sit.
Construction surveys ensure that buildings follow the building plans and city codes. They prevent costly mistakes. If a contractor builds in the wrong spot and has to tear it down later, the cost can be thousands of dollars.
Construction surveys must happen before any digging begins. After construction finishes, some property owners get an updated survey to verify the building was built in the correct location.
Choosing the Right Survey for Your Situation
Different situations call for different surveys. Here is a simple guide:
Buying a home? You need a mortgage survey. Your lender requires it.
Buying commercial property? You need an ALTA survey. Title companies and lenders require it.
Planning to build? You need a topographic survey for planning and a construction survey before you dig.
Fixing a property line dispute? You need a boundary survey. It provides legal proof.
Dividing your land into separate lots? You need a subdivision survey, which is similar to a boundary survey but creates new legal descriptions for each lot.
What Happens Next?
Once your survey is complete, you receive a map called a plat. This document shows your survey results. You can use this plat for title insurance, bank applications, construction planning, or legal disputes.
Keep your survey documents in a safe place. They are legal records that prove property ownership and boundaries. You may need them years from now.
If you are unsure which survey you need, contact a licensed surveyor. Licensed surveyors can review your situation and recommend the right survey type. They can answer questions about your property and help you understand the results.
Understanding these survey types helps you make smart decisions about your property. Whether you are buying, selling, building, or resolving a dispute, the right survey protects your investment and gives you peace of mind.
