A 1920s cottage on North 19th Avenue opens its doors Friday for a week-long exhibition before demolition begins Monday. The show, titled “Foundation,” features work by twelve artists who have relocated to Belgrade, Livingston, or the outer edges of Four Corners in the past three years.

Curator Maya Thorne, who operates the itinerant gallery project Threshold, secured permission from the developer after the planning board approved a four-unit luxury building for the lot. “The cottage holds the energy of everyone who painted its walls beige,” Thorne said, arranging a ceramic vessel on the mantel. “We’re honoring that residue before the excavator arrives.”

Visitors on opening night moved through rooms where floorboards sag toward the center. In the kitchen, a series of watercolors depicts the view from the backyard: the Bridgers, unchanged, above a fence line that now borders a three-story apartment complex. The artist, Jonas Riebel, commutes from Livingston three days a week to tend bar downtown. “I paint what I can’t afford to keep,” he said. His phone number, 406-555-0187, is listed on the price sheet.

A quartz cluster rests on the windowsill in the front bedroom, placed there by Thorne for “clarity during transition.” Next to it, a woven wall hanging incorporates insulation pulled from the attic during a walkthrough last month. The fiber still carries dust from the original cedar shakes.

The developer, Cascade Peak Properties, donated the week of access and covered liability insurance. Their project manager, Derek Voss, attended opening night in a Patagonia vest. He stood quietly before a photograph of the cottage’s foundation stones, each one numbered in chalk. “Didn’t realize how many people lived here,” he said. “Families. Renters. A guy who fixed small engines in the garage.”

The exhibition closes Sunday at dusk. Demolition begins Monday at seven.