The short answer
Park City runs well above anything in Eastern Idaho. It’s the one market where Guardian adjusts its base estimating number for location before a plan is even drawn. The premium comes from the land and the place, not the floor plan. Rock, slope, design review and logistics all cost money before the house goes up.
Where we build here
Guardian builds selectively in Summit County, a handful of premium custom and spec homes. Aspen Springs, completed in 2024, is a 6,200 sq ft, five-bedroom, five-and-a-half-bath home on three levels. We’re currently designing a spec home in Promontory on a steep, 1.25-acre canyon lot.
What drives the cost
Rock and slope
On a rocky hillside, rock is the single biggest swing in the budget. You don’t know how much you’ll hit until you dig. Steep lots add their own costs. The Promontory lot falls about 22 feet over a 330-foot driveway. That means a long driveway, retaining and drainage work. On a driveway that pitch, snow-melt is a real line item.
HOA and design review
Many Park City-area communities have a design review board. In Promontory, the HOA’s design review runs alongside the county permit. That review includes an on-site mockup and a defined limit of disturbance: the part of the lot you’re allowed to touch. Design and schedule have to make room for it.
Utilities come from separate districts
Water and sewer aren’t one call. In Promontory, water comes from Mountain Regional Water, which charges a monthly standby fee from the day you close on the lot. Sewer comes from the Snyderville Basin Water Reclamation District. Each district has its own connection fee, and those fees come on top of the county permit.
Local trades
Eastern Idaho trades don’t travel to Park City, so Guardian builds there with Utah excavation and concrete crews from the Heber and Park City area. Our standards, process and supervision come with us. The crews are local.
Code
Our current Summit County project is designed to the 2021 International Residential Code. Mountain sites mean real snow and structural engineering, and Guardian has those plans engineered for the specific lot.
Is a Guardian build in Park City right for you?
If you want an owner-led builder with an open-book, cost-plus process, and you’re willing to put real money into the site, yes. The rest of the process works the same way it does in Idaho. See our process or start a conversation.