You pulled the permits. You finished the build. Now the city won’t close out the project without an as-built survey. If that’s news to you at this stage, it’s going to cost you time and money.

As-built surveys aren’t optional on most permitted construction projects. Cities and counties require them to confirm that what got built matches what got approved. When those two things don’t line up, the permit doesn’t close. The certificate of occupancy doesn’t get issued. The project sits in limbo until someone fixes it.

Here’s when that requirement kicks in and what triggers it.

What Cities and Counties Are Actually Checking

When a building department asks for an as-built survey, they want one thing confirmed: the structure was built where the approved plans said it would be.

That means verified setbacks from property lines, confirmed building footprint dimensions and the actual finished floor elevation matching what was permitted.

If any of those things are off, the city knows before a tenant moves in or a final inspection gets signed off.

Why This Matters for Permit Closeout

Most jurisdictions tie the as-built survey directly to permit closeout. Without it, the permit stays open. An open permit is a problem. It shows up on title searches. It can delay refinancing. It can kill a sale.

A licensed land surveyor prepares the as-built and submits it as part of the closeout package. Some jurisdictions accept it digitally. Others require a physical set with an original seal.

Project Types That Almost Always Require an As-Built Survey

Not every project triggers the requirement. A bathroom renovation won’t. But these project types almost always do:

• New residential construction
• Commercial building construction
• Home additions that change the building footprint
• Accessory dwelling units (ADUs)
• Retaining walls above a certain height
• Pools and pool decks
• Seawalls and waterfront structures
• Driveways and site improvements near property lines

If the project changes the footprint of anything on the lot, assume an as-built survey will be required at closeout.

Flood Zone Projects Have an Extra Layer

Projects in FEMA-designated flood zones often require more than a standard as-built survey. An elevation certificate may also be required to confirm the finished floor elevation meets or exceeds the base flood elevation shown on the flood map.

That’s a separate document prepared by a licensed land surveyor or engineer. Some jurisdictions require both the as-built and the elevation certificate before they’ll issue a certificate of occupancy.

When the Requirement Gets Triggered During Construction

Some cities don’t wait until the end. They require an as-built survey at specific stages of construction:

• After the foundation is poured, to confirm location before vertical construction begins
• After the structure is framed, to verify setbacks before walls close
• At final inspection, to confirm the completed structure

Foundation surveys are the most common mid-construction requirement. If the foundation is in the wrong spot, catching it early is far cheaper than catching it at final.

What Happens When You Skip It

Skipping the as-built survey doesn’t make the requirement go away. It shifts the problem forward.

An open permit surfaces during a title search when the property sells. The new buyer’s lender may require it to be resolved before the loan closes. That puts the cost and the delay on the seller at the worst possible time.

Some jurisdictions charge late fees or require re-inspection when as-built documents are submitted after the deadline. The cost of the survey itself is almost always less than what it costs to deal with it later.

Who Orders the As-Built Survey

The general contractor typically orders the as-built survey on behalf of the developer or property owner. In some cases, the developer orders it directly.

Either way, the survey has to be prepared by a licensed land surveyor. The surveyor compares field measurements against the approved site plan and documents any deviations. If deviations exist, that gets noted in the survey documents.

Some deviations are acceptable. Others require a permit amendment before closeout. The sooner you know, the better.

Frequently Asked Questions

What is an as-built survey and why do cities require it? 

An as-built survey documents the actual location and dimensions of a completed structure. Cities and counties require it to confirm the build matches the approved plans before closing a permit or issuing a certificate of occupancy.

Does every construction project need an as-built survey?

No. Small interior renovations typically don’t require one. Projects that change the building footprint, add new structures or affect setbacks almost always do. Check with your local building department before pulling permits.

Who is qualified to prepare an as-built survey? 

Only a licensed land surveyor can prepare and seal an as-built survey. An engineer may also qualify depending on the jurisdiction and project type. The document must carry a professional seal to be accepted by the building department.

What happens if the as-built survey shows the structure is in the wrong location? 

Minor deviations may be acceptable. Significant setback violations may require a permit amendment, a variance application or in rare cases, a physical correction of the structure.

Can an open permit from a missing as-built survey affect a property sale? 

Yes. Open permits show up on title searches. Many buyers and their lenders won’t proceed until the permit is closed. Resolving it after the fact takes time and costs more than doing it correctly during construction.