Case study · Promontory · Park City
The Promontory Lodge
A 9,200 sq ft multi-generational family compound on a 4.7-acre Promontory parcel. Seven bedrooms, separate guest wing, indoor sport court, AIA Mountain West merit award.
Case study · Promontory · Park City
A 9,200 sq ft multi-generational family compound on a 4.7-acre Promontory parcel. Seven bedrooms, separate guest wing, indoor sport court, AIA Mountain West merit award.
The build
The Promontory Lodge was conceived as a generational home — a Park City address for three generations of one family, designed so the kids and grandparents could share holiday weeks without sharing walls. The owners came to us with a clear program brief on the first call: seven bedrooms, separate guest wing accessible without crossing the main living spaces, indoor recreation that worked in February, and a kitchen sized to host fifteen at Thanksgiving.
Architect Owen Alder organized the home as two intersecting bars connected by a central kitchen-living spine. The east bar carries the primary suite, two guest suites, and the children's wing; the west bar runs the indoor sport court and walks out to a finished basement with a 2,000-bottle wine cellar and a billiards-and-bar room. The separate guest wing — a 1,800 sq ft two-bedroom flat over the four-car garage — has its own exterior entrance off the motor court, its own kitchen, and full independent climate control.
The home earned an AIA Mountain West merit award in 2023 and a Utah Style & Design Home of the Year feature in 2024. It also became the reference build the firm uses for any multi-generational program brief; we've since delivered three more homes that drew directly from this floor plan and four others that adapted the guest-wing strategy.
Floor plan + massing
Two intersecting bars at a courtyard-defining angle. East bar (main house): primary suite at the south end, three secondary bedrooms in a children's wing at the north end, separated by a central kitchen-great-room spine. West bar: indoor sport court (full-court, 16-ft ceiling), opening to a finished walkout basement with wine cellar, billiards, bar, and home theater. Guest wing: detached 1,800 sq ft two-bedroom flat over the four-car heated garage, accessed via the motor court. Outdoor program: 1,200 sq ft south-facing deck with outdoor kitchen, fire pit, and hot tub; full landscape design extends to the perimeter of the building envelope.
Finish-out specifications
Build timeline
We had a complicated lot, an HOA that was making it harder, and a brief that asked the architect to seat fifteen people for Thanksgiving and still leave room for the grandkids' Lego project. Alder & Stone walked us through what could be permitted, what couldn't, and saved us from spending eighteen months on a design that would never pass.
— J. Mendel, Promontory · September 2022
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