When most people think about land surveys, they picture property lines and stakes in the ground. An ALTA survey goes much further than that. It is the most detailed survey you can get, and it is often required for commercial real estate deals. If you are buying, financing, or developing commercial property, knowing what an ALTA survey covers could save you from some very costly surprises.

What ALTA Stands For

ALTA stands for the American Land Title Association. The survey standards are set jointly by the American Land Title Association and the National Society of Professional Surveyors. These two organizations publish the minimum standards that every ALTA survey must meet, no matter what state the property is in.

Because the standards are national, lenders and title companies across all 50 states accept an ALTA survey. That consistency is a big reason why commercial real estate deals almost always require one.

What an ALTA Survey Covers

An ALTA survey is far more detailed than a standard boundary survey. It documents not just the edges of a property, but everything that affects how it can be used, financed, or sold.

A completed ALTA survey typically shows:

• Boundary lines. The measured legal edges of the property, confirmed through records and fieldwork.
• Improvements. All structures on the property, including buildings, parking lots, walkways, and fences, with their sizes and locations.
• Easements and rights-of-way. Legal rights that allow others to use parts of the property, like utility corridors or shared access paths.
• Encroachments. Any structure from a neighboring property that crosses onto the subject parcel, or any improvement that crosses onto a neighbor’s land.
• Utilities. The visible locations of utility lines and service connections on and near the property.
• Flood zone information. The FEMA flood zone designation for the property, pulled from the current Flood Insurance Rate Map.
• Zoning classification. The current zoning of the property as reported by the local authority.
• Access. Confirmation that the property has legal access to a public road or recorded right-of-way.

Table A Items

The ALTA/NSPS standards include an optional list of extras called Table A. These are additional items that can be added to a survey based on what a transaction needs.

Common Table A additions include parking counts, building square footage, utility locations from public records, and signs of recent earth-moving activity. Lenders and title companies often spell out which Table A items they want included. The more items requested, the more detailed and time-consuming the survey becomes.

Who Requires an ALTA Survey

ALTA surveys are mainly used in commercial real estate. The people most likely to require one include:

• Mortgage lenders. Before financing a commercial purchase, most lenders require an ALTA survey to confirm the physical condition and boundaries of the property.
• Title insurance companies. Title insurers use the survey to spot any physical conditions that could create a claim against the title policy.
• Commercial buyers. A buyer doing proper due diligence on a commercial property will almost always order an ALTA survey to know exactly what they are buying.
• Developers. Before designing a commercial project, developers need precise boundary, utility, and encroachment information that only an ALTA survey reliably provides.

How an ALTA Survey Differs From a Boundary Survey

Both surveys define property lines, but the similarities stop there.

A boundary survey follows state and local standards, which vary by location. An ALTA survey follows one national standard, which is why lenders and title companies everywhere accept it.

A boundary survey focuses mainly on property lines and corners. An ALTA survey documents the lines, the structures, the easements, the encroachments, the utilities, the flood zone, and the zoning. It gives a far more complete picture of the property.

For a homeowner dealing with a fence dispute, a boundary survey is the right tool. For a business buying commercial property, an ALTA survey is what lenders and title companies require.

How Long an ALTA Survey Takes

An ALTA survey takes longer than most other surveys because of the research and documentation involved. The surveyor reviews recorded easements and rights-of-way, researches utility records, studies prior surveys and deeds, and conducts detailed fieldwork before the final map is ready.

For a straightforward commercial parcel, the process usually takes one to three weeks. Larger properties or complicated histories can take longer. It is always a good idea to order the ALTA survey early in the transaction rather than waiting until closing pressure builds.

What an ALTA Survey Costs

ALTA surveys are the most expensive type of land survey because of the work involved. For a standard commercial parcel, costs typically range from $1,500 to $5,000. Larger properties or those with many Table A items can run higher.

The cost makes sense when you consider the context. A commercial property deal involves significant financing, legal fees, and due diligence expenses. The ALTA survey is a small line item compared to what it can reveal and what it can prevent.

Frequently Asked Questions

Does a residential property ever need an ALTA survey? 

Occasionally, yes. Some high-value residential deals, estate properties, or purchases involving private lenders may require one. For most standard home purchases, a mortgage location survey or boundary survey is enough.

Who pays for the ALTA survey in a commercial transaction? 

This is negotiable, but the buyer usually pays as part of their due diligence costs. Some sellers order one in advance to make the transaction smoother.

What is the difference between an ALTA survey and a title report? 

A title report reviews recorded documents and ownership history. An ALTA survey physically measures the property. The title report tells you what is on record. The ALTA survey tells you what is on the ground. Both are needed for a thorough commercial due diligence review.

Can an existing ALTA survey be reused for a new transaction? 

Sometimes, but with limits. Most lenders and title companies require a survey dated within a specific window, often six months to one year before closing. An older survey may be recertified by the original surveyor if nothing significant has changed, but this needs to be confirmed with the lender or title company involved.

What happens if an ALTA survey finds an encroachment? 

The encroachment becomes a documented issue that must be resolved before closing, or accepted by all parties. Options include removing the structure, getting a recorded easement or agreement, or adjusting the purchase price to reflect the risk. The survey does not fix the problem, but it brings it to light so everyone can deal with it.