Multi-Building Equestrian Campus — Yamhill County, Oregon

The goal behind this project was a single equestrian property an operation could run from for decades. Not one barn, but a coordinated campus of buildings designed to work together. MPB is the builder carrying that vision from an outside architect’s drawings to finished structures, on private acreage in Yamhill County, Oregon, in stages between 2024 and 2026. The completed scope to date is a 40-by-84 hay and storage barn. The stall barn is in framing, with the foundation poured, post and beam set, and the roof structure progressing. A riding arena, a roof-only arena wing, and a connecting breezeway are in design and queued for full notice to proceed. It is the kind of work MPB is built for: large-scale, architect-led, multi-building post-frame and steel construction.

The campus is laid out as separate buildings tied together by a covered walkway with a cupola at the breezeway. The hay barn handles feed and equipment storage and was deliberately built first — it gives the operation working covered space while the rest of the campus is under construction, and it served as a real-world proof of the materials, colors, and finish levels before they were committed across the much larger stall barn and arena. The stall barn is the heart of the operation: aisleway, stalls, wash racks, tack and laundry rooms, and a mechanical room, all framed under a single roof with polycarbonate skylights for natural light. The arena is a 100-by-200 riding surface inside a steel column system, with an attached 20-by-126 roof-only wing for additional covered work area. The walkway and cupola tie the stall barn to the arena so horses and people can move between the buildings under cover.

The campus runs on an AIA G702/G703 Schedule of Values, the standard contract format for architect-driven commercial construction. AIA contracts replace the base-plus-additions structure most of our work runs on with a line-by-line schedule of values billed against in monthly progress applications. It is the format banks and architects expect on projects of this scale, and we deliver against it cleanly. We worked from architect-issued construction documents through several progressions of the drawing set, carrying revisions into the field as the design evolved.

The build is delivered incrementally under a rolling series of limited notices to proceed: the hay barn first, then the stall barn foundation, the stall barn framing, the post and beam work, and the stall barn roof structure, with the arena complex sequenced in once the rest is in place. Staged delivery at this size is its own discipline, and we run it. The owner releases funded segments as the build progresses, the architect refines the construction documents as scope settles in the field, and we hold continuity of crew and supply across years rather than weeks so the work never loses its thread. The hay barn is substantially complete with its window, siding, soffit, and standing-seam roof upgrades installed. The stall barn is mid-framing. The arena scope is fully drawn and waiting.

Working under an architect shapes the design-build process in specific ways, and it is a process we run with discipline. The architect owns the design language, the elevations, and the specifications. We estimate, schedule, and build against those documents. Material choices that would be sales conversations on a typical project, like siding profile, stain color, roof color, window type, and soffit finish, are pre-specified, and our job is to execute them precisely and flag conflicts early when site conditions don’t match the drawings. For a high-end equestrian operation, that discipline is what lets the campus read as a single coherent property instead of a sequence of separate buildings put up over different years by different bids.

Some equestrian operations want one building, and that is the right answer for them. Others want a unified campus: a hay barn, a stall barn, an arena, and the connective tissue between them, all built to the same vocabulary of materials, colors, rooflines, and trim. That answer costs more and takes longer to design and deliver, and it is the right call for an operation that intends to be the primary use of a property for decades. It is the answer when the buildings need to function as a working facility and also look like they belong together. This campus is that second answer, and we are executing it across multiple structures and multiple construction seasons under an architect-led delivery.

A campus like this calls for a contractor who can carry post-frame and steel-arena hybrid structures, run AIA billing without friction, and keep crew and supply continuity across seasons rather than weeks. That is how MPB runs it, so the owner can stay focused on their operation while we carry the build. When the contract discipline and the field execution both come from one builder, the owner gets what they set out to build: a property the operation can run from for decades, every structure speaking the same language.