80×204 Arena, Stall Barn & Breezeway — Clackamas County, Oregon

A large ag-exempt equestrian complex on rural acreage near Sandy, in Clackamas County’s foothill horse country. Three connected structures: an 80-by-204 covered riding arena, a detached 60-by-84 stall barn, and a 12-by-12 breezeway tying the two together — plus a 12-by-84 roofed wing off the barn. Contracted in late 2025 as a single design.

The arena is the centerpiece — 80 feet wide, clear-span, no posts in the riding area, with a 19-foot eave. It is partially enclosed: one eave wall closed to grade, the gables and the other walls built as a combination of a low wall coming up from grade and a wall dropping down from the eave, and the long open side connecting through to the wing. That open configuration is what working covered arenas want — light and airflow without trapping a barn’s worth of stale air over the footing.

A breezeway away sits the detached 60-by-84 stall barn, closed to grade on all walls with a plywood-and-felt vapor barrier in the roof. Sliding doors handle the access — a 12-by-8 at the breezeway end and a pair of 12-by-12s centered on the gable, plus a row of stall doors along the eave wall. A 12-by-84 roofed wing runs down one side for covered storage and turnout, with a 24-foot gable dormer breaking up the roofline.

The 12-by-12 breezeway is roof-only at a 9-foot eave, joining the arena and the barn so horses and handlers move between the two under cover. It is the kind of detail that makes a working facility livable through a wet Pacific Northwest winter.

Ag-exempt at the parcel level kept the front-end paperwork light for a complex this size. Sandy sits up in the Cascade foothills, east of the valley floor, where a covered arena paired with a real stall barn is the difference between an operation that runs year-round and one that shuts down when the weather turns.