The New Jeffco STR Rules Are Here — What Foothills Hosts Actually Need to Know

If you rent out a place in Conifer, Evergreen, Pine, Bailey, or anywhere in unincorporated Jefferson County, the rules just changed under your feet. And honestly? For most hosts up here, the changes are good news — but only if you act before a couple of deadlines sneak up on you.

I run a cleaning and co-hosting company in the foothills, so I’ve been watching this one closely. Here’s the plain-English version of what happened and what you should do about it.

What actually changed

On December 16, 2025, the county adopted a brand-new section of the zoning rules just for short-term rentals (Section 46, if you like to read the fine print). The headline: the old, painful process is gone.

For years, getting a legal STR up here meant going through the Board of Adjustment for a “special exception,” needing a full acre of land, and basically hoping. A huge number of foothills rentals never bothered — by the county’s own count, there were 700-plus STRs in unincorporated Jeffco and fewer than 50 were actually permitted. When 90-something percent of people skip a process, the process is usually the problem, and the county finally agreed.

The new system replaces all that with a license you apply for directly through the new Jefferson County Citizen Portal. No special exception hearing. Clearer, objective criteria. If you’ve been operating in the gray because the old process felt impossible, there’s now an actual path to get legal.

The part nobody’s talking about: enforcement got real

Here’s the trade-off. The county also passed a separate Vacation Rental Services Ordinance, and this is the piece that changes the game.

In plain terms: the platforms — Airbnb, VRBO, all of them — now have to play along. Every listing has to show a valid county license number, and the county can make a platform pull your listing if you don’t have one. There’s also a 24/7 complaint hotline (720-619-3690) and a public, interactive map of every STR in the county that any neighbor can pull up.

So the days of flying under the radar are ending. The flip side of an easier permit is that the county now has the teeth to enforce it. If you’re unpermitted, this is the year to fix that — not the year to wait and see.

The deadline that actually matters: July 1

Here’s where my engineering brain kicks in. I spent years in water and wastewater before this, so I read code the way some people read a thriller, and the wildfire piece is the one I’d flag hardest.

Separate from the STR rules, the county’s new Wildfire Resiliency Code takes effect July 1, 2026. It updates defensible-space and structure-hardening standards to match the new state wildfire code, and it expands the map of which properties fall inside the Wildland-Urban Interface.

Why should an STR owner care? Because almost every rental in our foothills sits squarely in that high-risk zone — and STR licensing up here has always been tied to wildfire-hazard compliance. If your defensible space isn’t where the new code wants it, that’s not just a fire-season worry, it’s potentially a licensing problem. The two issues are joined at the hip now.

The good news: defensible space is fixable, and most of it is stuff you’d want done anyway. Clearing the zone right around the structure, cleaning gutters and roof valleys of needle litter, moving the firewood stack and propane away from the house, trimming what’s overhanging the deck. None of it is exotic. It just needs to actually get done before inspection season, not added to a someday list.

What I’d do this week if it were my rental

1. Check if you’re actually in unincorporated Jeffco. Most of Conifer, Aspen Park, and the surrounding foothills are — but if you’re inside a town’s limits, different rules apply. The county’s STR page has the tools to confirm.
2. Check your HOA or covenants. County approval doesn’t override your subdivision. Plenty of mountain neighborhoods restrict or flat-out ban STRs in their CC&Rs, and that trumps the county license.
3. Start the license application through the Citizen Portal if you’re operating without one. The path is genuinely easier now — there’s no reason to keep risking a yanked listing.
4. Walk your defensible space before July 1. Or have someone walk it for you. This is the deadline most people are going to miss because it’s quiet and it’s not on a platform reminding them.

A quick honest note

The county hasn’t published the final fee schedule or its full FAQ yet — those are still landing — so I’m not going to throw a dollar figure at you that might change next month. The two documents to trust are the official Section 46 zoning text and the Citizen Portal itself, both linked from the county’s Short-Term Rentals page. When the fee numbers firm up, I’ll do a follow-up.

If all of this makes your head spin, you’re not alone — half the hosts I talk to didn’t know any of it had changed. Keeping a foothills rental clean, stocked, guest-ready, and compliant is most of what we do, and I’m always happy to talk through where your property stands. Reaching to new heights of cleanliness — and these days, apparently, code compliance too.

— Hannah, Mountain Marvel Cleaning Company