Jefferson County, Colorado

The Survey You Paid For Might Not Be the One You Need

Updated for 2026 · 4 min read · Property Owner Questions

By Jamee Chambers, CEO and Planner, Chambers Consulting, Inc.

A homeowner came to me to build a fence. He already had a survey from years back, and he was sure it was on file with the county. It wasn't. The reason is a mix-up that costs homeowners more than almost anything else.

Here is a mistake that costs homeowners real money, and almost nobody sees it coming.

A homeowner came to me recently to build a fence. Nothing complicated. He wanted his corners confirmed so there would be no argument with the neighbor. And he was ahead of the game, or thought he was: he already had a survey, done years back, that he had paid good money for, and he was certain it had been recorded with the county.

It wasn't. He had already been to Jefferson County Planning and Development to look. They couldn't find it either, and guessed it might be filed in some other department. He was chasing a document that, it turns out, was never there.

Why not? That is the part every homeowner should understand, because something similar is sitting in a lot of your files right now.

What he actually bought

The survey he paid for was described to him as an "improvement survey." By the price, and by how it was written up, it was almost certainly something else: an Improvement Location Certificate, or ILC.

An ILC is a mortgage survey. Lenders and title companies order them to confirm there is nothing glaring wrong with a boundary before a sale closes. And here is the catch, the one that sent him chasing: an ILC sets no corners in the ground, and the surveyor never files it with the county. It was never meant to be filed. So it was never in the records, and it never would be.

He did everything a careful person is supposed to do. He hired a licensed professional. He kept his copy. He assumed, reasonably, that a survey is a survey. And years later he was holding a document that would not do the one job he now needed done.

That is the trap. The word "survey" covers several different documents. They cost different amounts, they show different things, and only some of them are ever recorded. You should not need a surveying license to tell them apart. So let me save you the trouble.

The three documents people call "a survey"

The Improvement Location Certificate (ILC). The mortgage survey, the one above. Cheapest of the three. No corners set, not filed. Fine for a closing. The language on it states "it is not to be relied upon for the establishment of a fence, building or other future improvement."

The Land Survey Plat, also called a Boundary Survey Plat. This is the real boundary survey, and it is almost always what you want for a fence. It shows only your property lines and everything within five feet of them, so you can see exactly where an existing fence sits against the true line. Corners are set. When we reset one, we file it, and the state now requires filing any time a corner is reset in a subdivision more than 25 years old. Most older neighborhoods qualify.

The Improvement Survey Plat (ISP). This is like a combination of the Improvement Location Certificate (where everything built is shown on the drawing) and the Land Survey Plat (where property corners are set if missing). The comprehensive one. And this is where the county has recently changed the rules on everyone.

What Jefferson County wants now

You no longer need a survey or a permit just to build a fence. Good news. But the county now wants a full Improvement Survey Plat and site plan for things that used to be routine, including replacing a deck in the same footprint. A detached garage, a pool, a backyard cottage: all ISP territory now. That means more coordination, more time, and more cost than you are probably expecting. Right now most surveyors I know are booked nine to ten weeks out. If your project has a deadline, the time to call is before you think you need to.

The trap most people miss

Even where the county does not require a survey for your fence, your HOA might. Ours often wants proof of your corners before a fence contractor touches the ground. So before you order anything, ask your HOA what it actually requires. It can change what you need, and it is far cheaper to find out first than to pay twice.

How to not be that homeowner

Back to the fence. Three of that homeowner's four corners were still in the ground. The fourth had been marked, years earlier, with a wooden stake and a flag, and a neighbor had pulled it up and thrown it aside. Some old history there, he said. And that is the whole lesson in one picture. A stake in the dirt does not settle anything with a neighbor who does not want it settled. A boundary survey, with corners set and filed with the county, does.

So before you pay anyone, ask two questions. Which of the three am I buying? And will it be recorded with the county? Get those right, and you will not spend a dollar on the wrong document, and you will not go looking, years from now, for a survey that was never there.

JC
About the author

Jamee Chambers is the CEO and planner at Chambers Consulting, Inc., a surveying and planning firm in Morrison, Colorado, in business since 1979.

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