It took Teton County 42 days to issue a building permit for a 999-square-foot accessory residential unit on a property off National Elk Refuge Road. That number sat quietly in county records until a reporter pulled it this spring, and it became the case study for why Wyoming lawmakers passed a law forcing local building departments to move faster. The county's own planning director, Chris Neubecker, later put the broader pattern in plain terms: residential new construction permits in Teton County take an average of 112 days to review.
If you are planning to build in Teton County this year, whether that is a custom home on raw acreage, a guest house behind an existing residence, or an addition that pushes a property past its current footprint, two separate policy changes landed on your desk in 2026. Both use the same number: 3,000 square feet. One governs how fast your permit gets reviewed. The other governs whether you owe a housing mitigation fee. They sound like a matched pair. They are not, and the gap between them is exactly the kind of detail that changes what a specific parcel is worth to you.
Two Policies, One Number, Different Reasons
Governor Mark Gordon signed the Fast Track Permits Act into law on March 10, 2026, effective July 1. For structures under 3,000 square feet, local governments now have 30 calendar days to approve or deny a completed application. Miss the deadline and the permit is automatically approved. Local officials also have to notify applicants within 10 business days on whether an application is even complete, and if they deny it, they owe written reasons within seven calendar days.
Then, on a separate track entirely, Teton County commissioners raised the threshold for the county's housing mitigation fee exemption from 2,500 to 3,000 square feet. The change took effect in June 2026. Commissioner Luther Propst was direct about why the county picked that particular number: it matches the Fast Track Permits Act. The two policies share a threshold because one was designed to echo the other, not because they solve the same problem. One is about a review clock. The other is about a fee you owe or don't owe. Conflating them is the mistake this article exists to prevent.
What the 30-Day Clock Actually Covers
Here is the part that matters if you are picturing a large custom mountain home on a few acres of county land: the Fast Track Permits Act's speed guarantee probably does not apply to you.
Neubecker was blunt about why. New homes in Teton County are often large, custom-designed, and sited near natural resources that trigger additional review, and the county rarely sees permit applications for small homes on flat lots with simple designs. Over the past three years, the county logged 63 applications for buildings under 3,000 square feet, and it expects to review something like 30 to 35 permits a year going forward that qualify for the accelerated 30-day track. Against a total volume of residential building activity in a county where custom estates routinely run well past that footprint, that is a narrow slice.
Where the fast-track clock is genuinely useful is for exactly the kind of project the National Elk Refuge Road case represents: an ARU, a caretaker unit, a modest guest house, a smaller in-town infill build. If your plans involve one of those, the 30-day deadline is a real, enforceable improvement over a system that has averaged 112 days.
Amy Kuszak, formerly a county planner and now community planning director at the Jackson Hole Conservation Alliance, raised a caution worth passing along. She noted that with hundreds of homes proposed for northern South Park, the county could see a surge in applications right as staffing remains tight. The county's plans examiner position, the role responsible for code review, was vacant as of the law's passage, with planners leaning on outside consultants to keep up.
The Fee Line Only Moved on One Side of Main Street
This is where the two policies diverge in a way that matters for anyone comparing an in-town lot to county acreage.
| Town of Jackson | Teton County (unincorporated) | |
|---|---|---|
| Permit review target | Internal 30-day policy, predates the state law | 30-day mandate for structures under 3,000 sq ft, effective July 1, 2026 |
| Mitigation fee exemption | No home-size exemption | Homes under 3,000 sq ft exempt as of June 2026 (previously 2,500 sq ft) |
| Recent mitigation revenue | $910,585 in 2023; $293,872 year-to-date as of mid-2026 | $453,914 from single-family homes in 2025; $1.2 million in 2024 |
Town Planning Director Paul Anthony confirmed the town has not adopted a matching size exemption. Mayor Arne Jorgensen offered the reasoning: people who want to build very large homes tend to do so outside town limits in the first place, so the town never felt pressure to widen its own exemption. The practical result is that a homeowner building a 2,800-square-foot house on a county lot near the county's example projects can walk into a fee exemption that a comparable home inside Jackson town limits would not receive.
The dollar figures underline how much is actually moving. The county pulled in $453,914 in mitigation fees from single-family homes in 2025, and of that, $86,588 came specifically from homes between 2,500 and 3,000 square feet, the band that is now exempt going forward. County mitigation revenue swings meaningfully year to year (it brought in $1.2 million in 2024), so treat any single year as a snapshot rather than a trend line. The town's own mitigation revenue tells a similar story of volatility: $910,585 in all of 2023 against $293,872 collected year-to-date as of mid-2026, according to town planning figures.
Before You Assume Either Policy Applies to You
- If your project is under 3,000 square feet and sits on unincorporated county land, you likely qualify for both the 30-day review clock and the fee exemption.
- If your project sits inside Jackson town limits, you may get the same 30-day review speed, since the town's internal policy already provided that, but you will not get a matching fee exemption regardless of size.
- If your planned home is a typical Jackson Hole custom build well over 3,000 square feet, neither the speed guarantee nor the fee exemption is designed with your project in mind. Budget and schedule around the historical county average of roughly 112 days for full residential review, not the 30-day figure making headlines.
- Confirm your parcel's jurisdiction before you assume anything. County and town boundaries in the valley are not always intuitive from a map, and the Teton County Planning & Building Department maintains permit records and status through its online portal if you want to verify a specific address.
The Fees Themselves Are Still Being Argued in Cheyenne
None of this is settled for the long term. The mitigation fee program has faced repeated challenges at the state level, including a bill from Rep. John Bear that would have eliminated the fees statewide and passed the Wyoming House with strong support before stalling in the Senate this year. Rep. Andrew Byron, who represents Hoback, voted for that bill and has said he expects the fight to return in a future legislative session. Separately, a Hoback family, Shelby and Trey Scharp, challenged the county in court after officials miscalculated their mitigation fee by failing to account for a historic cabin already on the property. The county settled, refunded the money, and the broader program survived, but the episode triggered a county-wide review of fees assessed since 2022.
None of this is legal or financial advice, and fee schedules and exemption thresholds can shift again with the next legislative session or commission vote. If a specific fee amount or exemption matters to your purchase decision, confirm the current figure directly with the county or town planning department before you rely on it.
A Few Questions Worth Asking Directly
Does the Fast Track Permits Act apply the same way in the Town of Jackson as it does in unincorporated Teton County? The 30-day target is similar in practice, since the town already operated on an internal 30-day policy before the state law took effect. The legal mandate and its automatic-approval consequence for missed deadlines apply statewide as of July 1, 2026.
If I buy land in the county and plan a home under 3,000 square feet, is the fee exemption permanent? The exemption is current policy as of mid-2026, but mitigation fees remain a subject of active legislative and legal dispute in Wyoming. Verify the fee schedule in effect at the time you pull permits.
Where do I check my specific parcel's zoning and jurisdiction before assuming either policy applies? The county's Planning & Building Records office and online GIS map let you search a property directly, and it is worth doing before you write an offer contingent on either the speed or the fee benefit.
If you are weighing a custom build on Teton County acreage against an in-town homesite, the permit clock and the fee line are two separate variables now, not one. The Legacy Group works through exactly this kind of jurisdictional detail with clients buying land and planning construction across Jackson, Wilson, and the wider valley. For a look at how these distinctions play out property by property, see our Teton County neighborhood guide, or reach out directly to talk through a specific parcel before you commit to a plan.
Work With Us: Contact The Legacy Group to talk through how these permit and fee rules apply to a property you're considering.
