Timber Frames Organize Every Room in Espiga House

A sequence of timber structural frames does the organizational work of walls, corridors and facade at Espiga House, the 140-square-metre dwelling Grupo Primitivo completed for 2026 in a project the firm describes as structure-first architecture.

The Mexico City-based team—lead architects Francisco Guerrero, Sebastian Gutierrez, Hernic Jara and Felipe Lazo—built the design around a single premise: the frame, not the partition, governs how the house works.

"Vivienda Espiga explores the potential of the structure as an organizing and qualifying element of architectural space, transcending its role as mere support to become the primary articulator of the living experience," the architects said in their project text.

That is a programmatic claim, not only a tectonic one. The frames establish a rhythm. They define pathways through the plan. They articulate rooms without closing them off. Structure, in this reading, replaces the conventional devices architects usually reach for when separating functions.

Mauro Segura photographed the completed house.

What does the structure actually do here?

The architects list three operative roles for the timber frames:

• They set an order that "defines pathways" through the dwelling.
• They "articulate rooms," replacing enclosure with rhythm as the room-defining device.
• They "build a material identity," making exposed timber the dominant visual and tactile language of the interior.

The cumulative effect, according to the architects, is a house "where structure, architecture, and landscape integrate into a single expression." The landscape reference matters. The frames do not stop at the interior; the system extends the spatial reading outward, tying the plan to its setting rather than sealing the house from it.

For practitioners, the scheme reads as a case study in structural economy. One system—repeated timber portal frames—carries the load, distributes the circulation, marks the room boundaries and delivers the finish. No layer of applied cladding mediates between the frame and the occupant. What you see is what holds the building up.

Why the year and the numbers matter

The project carries a 2026 date, placing it among the recently completed or completing works by the young firm rather than an unbuilt concept. Its footprint of 140 square metres sits squarely in the territory where most residential commissions land, which makes the structural strategy directly transferable: the frame module that organizes Espiga House could set the order for any similarly scaled dwelling without inflating the budget.

Grupo Primitivo's argument, stated plainly, is that a timber frame can do a house's architectural work. Espiga House is the proof: 140 square metres, one structural system, and no need for the partition wall to tell the rooms apart.