A few years back, a survey crew might spend a slow Tuesday on a quiet lot. No cranes. No fence covered in permit notices. Just an old warehouse and a rusted gate.
That same lot today probably has three trucks parked outside and a rezoning sign zip-tied to the chain-link. This is happening block by block along Denver’s redevelopment corridors, and it’s changing the kind of survey work getting ordered.
ALTA survey requests are climbing in these areas. Not because someone is refinancing a strip mall. Because whole blocks are getting reshaped, and lenders, title companies, and developers all need a clear, current picture of the ground before anyone builds anything new.
Here’s what’s driving that, and what property owners and developers should know before they order one.
Why Denver’s Infill Boom Is Quietly Driving More ALTA Survey Orders
Most people think of an ALTA survey as something you order right before a loan closes. That’s true. But it’s not the only reason surveyors are getting more calls in corridors like RiNo, Five Points, and Central Platte Valley.
Infill development changes that math. A parcel that sat quiet for fifteen years, maybe an old auto shop or a half-empty warehouse, suddenly gets attention once a few blocks nearby get rezoned. A developer buys it. A lender gets involved. And the survey on file, if one even exists, is old enough that nobody trusts it.
That last survey, if it happened at all, was likely done for a different reason. Maybe a boundary check before a fence went in. Maybe a small addition. Neither one meets the standard a lender or title company wants now.
So the ALTA survey shows up. Not out of habit, but because the property itself has changed. Nearby parcels have new fences, new curb cuts, new easements. None of that shows up on a ten-year-old drawing.
Assemblage Parcels: When Two or Three Legal Descriptions Become One Redevelopment Site
Here’s something that trips up a lot of first-time developers in these corridors: redevelopment rarely happens on one clean lot.
More often, a project sits on two or three parcels bought from different owners at different times. Each one has its own legal description. One might trace back to a 1950s plat. Another might carry old bearings written by hand, ones that don’t quite line up with modern survey control.
Combining these into one buildable site isn’t a simple stroke of a pen. The surveyor has to walk the ground, find what’s left of the old monuments, and check where the boundaries actually sit. Not just where old deeds say they should sit.
Fences drift over time. Old iron pins get paved over. A shed built forty years ago might sit two feet onto a neighboring parcel that nobody noticed until now.
Only after all the legal descriptions get reconciled into one boundary can the site plan really start. Skip that step, and an architect might design a building that sits partly on land the client doesn’t legally control yet.
Overlay Zoning and the Survey: Why a Legal Description Might Not Match What You Can Actually Build
A boundary survey can be dead accurate and still not tell a developer what they can build.
That’s because Denver layers overlay districts, like the Design Overlay found along some of its busiest corridors, on top of base zoning. These overlays can set rules on setbacks, building height, and how close a structure sits to the street. Rules that don’t show up on a plat map or in a legal description.
An ALTA survey checked against current zoning can flag this early. Say a lot’s rear boundary sits exactly where the deed says it should, but a required setback under an overlay pushes the buildable area in by another ten feet. Better to know that before the drawings get finalized than after.
This is one reason surveyors working in active corridors need to check current zoning and overlay maps, not just parcel data from the county. Zoning shifts fast in these areas. A district that allowed one story last year might allow four this year, with a different setback attached.
Bus Rapid Transit Corridors and Right-of-Way Dedication: A New Reason for Table A Item 4
The East Colfax bus rapid transit project is reshaping more than the bus route. It’s changing what surveyors need to check along that corridor and others like it.
Transit corridor projects sometimes ask property owners to give up a strip of land for a wider sidewalk, a bus platform, or a turn lane. That’s land the original plat never planned for.
Table A Item 4, the vicinity map, along with a close look at right-of-way records near the site, catches this early. A parcel that looks fully buildable on paper might actually run short by several feet once a road-widening or transit easement gets applied.
Developers who skip this step sometimes find out during permitting instead of during design. That’s a rough time to learn your site is smaller than you thought.
Why Lenders Are Requesting Fresh ALTA Surveys on Sites That Were “Already Surveyed” a Few Years Ago
A common question from property owners: “We already had a survey done. Why do we need another one?”
In a quiet part of town, a five-year-old survey might still hold up fine. In a fast-moving corridor, five years is a long time.
New construction next door. A new easement recorded for utility work. A different owner who fenced off a strip of land. A title commitment listing exceptions that didn’t exist when the last survey was drawn. Any one of these can make an older survey unreliable, even if the boundary lines themselves haven’t moved an inch.
Lenders know this. A survey that would have passed review two years ago might get sent back today if the property sits in an area where redevelopment is moving fast. It’s not a knock on the old surveyor’s work. It’s a recognition that the ground itself has changed since then.
