How Long Is a Property Survey Good For?

A property survey never legally expires. The corners, monuments and lines a licensed surveyor set stay valid for as long as nothing on the ground changes. What ages is the survey's usefulness for a transaction: lenders and title companies typically want a survey completed within the last 5 to 10 years, and many will accept an older one if the seller signs an affidavit of no change. So the honest answer is that a survey is "good" indefinitely as a record, but "current enough" for a specific closing, loan or permit only if the property has not changed since it was drawn.

Do property surveys expire?

No. There is no statute in any US state that puts an expiration date on a boundary survey. The monuments a surveyor sets and the sealed plat they produced remain a legal record of where your lines were determined to be. A survey from 1985 that still matches the iron pins in the ground is just as legally valid as one drawn last week. The only thing that erodes over time is confidence that the picture is still accurate, because fences move, additions get built, easements get granted and corners get disturbed.

How long is a property survey good for when buying a house?

For a home purchase, most lenders and title companies want a survey from roughly the last 5 to 10 years, and the exact threshold is set by the individual title underwriter, not by law. If the seller has an older survey, the common workaround is a seller's affidavit of no change: a sworn statement that no new structures, encroachments or boundary changes have occurred since the survey was made. With that affidavit, a title company will often insure over the old survey and skip ordering a new one. If the seller cannot or will not sign it, or the property has visibly changed, expect to pay for a fresh survey. For the full picture of which survey a closing actually needs, see mortgage and title survey for closing.

How long is a survey good for a mortgage or refinance?

On a refinance, the standard depends on whether your lender and title company require survey coverage at all, and many residential refinances do not. When they do, the same 5-to-10-year window and affidavit-of-no-change practice applies. A survey exception on your existing title policy can sometimes carry forward if nothing has changed. Whether a refinance needs a survey at all is covered in do I need a survey to refinance.

When do you actually need a new survey?

Order a new survey, regardless of how recent the last one is, whenever the facts on the ground may have shifted:

• Anything was built near a line since the last survey: a fence, deck, addition, pool, shed or driveway.
• You are building close to a boundary and need current, sealed line locations to pull a permit.
• The parcel was split, combined or had an easement added.
• There is a boundary dispute or a neighbor's improvement looks like it crosses the line.
• The corner pins are missing or disturbed and cannot be found in the field.
• A lender, title company or municipality requires a recent one and no affidavit of no change is available.

Can an old survey ever become invalid?

A survey does not become "invalid," but it can become wrong for the current situation. If a retaining wall was rebuilt two feet over, or a subdivision replatted the block, the old drawing no longer describes reality. The legal boundary usually has not moved, but the paper no longer shows what is actually there, so anyone relying on it, a title insurer, a permit reviewer or a court, will want it updated. That is the difference between a survey being legally valid and being practically current.

Does the state I am in change the answer?

The core answer is the same nationwide because no state sets a legal expiration, but local recording and title practice vary. In states with strong record-of-survey filing rules, an older survey is more likely to be on file and reusable. In states without a central recording requirement, a prior survey may never have been recorded, so a new field survey is often needed even if one was done years ago. When in doubt, ask a surveyor licensed in your state and county what local title companies currently accept.

The bottom line

Treat your survey as a permanent record that has a shelf life for transactions. Keep the sealed plat and the recorded plat with your closing documents. When you sell, refinance or build, ask your title company what age they accept and whether an affidavit of no change will do. If the property has changed or the pins are gone, do not gamble on an old drawing. Describe the job in the matcher on the Surveyors.io homepage and compare up to three quotes from license-verified, insured local surveyors within about 24 hours, and see the land survey cost guide for what a fresh survey runs.