Espiga House: Timber Structural Innovation in Las Condes
Grupo Primitivo utilizes timber frames to redefine residential spatial organization and structural identity.
1Structural Design Philosophy
Vivienda Espiga, designed by Grupo Primitivo, redefines the role of structural elements in residential architecture. Rather than serving as hidden support, the timber frames act as the primary articulator of the living experience. This design approach transforms the building skeleton into a defining feature that organizes pathways and interior room layouts.
2Project Specifications Overview
The residential project covers a total area of 140 square meters in Las Condes, Chile. Completed in 2026, the house functions as an extension, emphasizing refurbishment and spatial efficiency. The construction process involved specialized teams, including Constructora Valarce for general building and Byron Ronquillo for structural engineering consulting services.
3Materiality and Spatial Order
The project utilizes a sequence of timber structural frames to establish a rigorous spatial order. This material choice creates a distinct identity where architecture and landscape integrate into a single, cohesive expression. By exposing the timber, the architects ensure that the material itself contributes to the aesthetic and functional quality.
4Technical Engineering Collaboration
Successful execution required multidisciplinary coordination among various engineering consultants. Byron Ronquillo managed the structural integrity, while Francisco Sonnenburg oversaw the electrical systems. Daniela Orellana provided additional engineering consulting to ensure the complex timber assembly met local standards. This collaboration was essential for maintaining the project's precise architectural vision throughout construction.
5Site and Contextual Integration
Located in Las Condes, the project addresses the specific challenges of residential extensions in an urban Chilean context. The design prioritizes the relationship between the built environment and the surrounding landscape. By using timber as the primary medium, the house achieves a natural integration that respects the local environmental conditions.
6Architectural Identity Development
The lead architects, Francisco Guerrero, Sebastian Gutierrez, Hernic Jara, and Felipe Lazo, focused on transcending traditional support roles. Their design strategy treats the structure as a qualifying element that defines the living experience. This methodology allows the house to function as a unified organism rather than a collection of separate rooms.
7Documentation and Visual Record
Photographer Mauro Segura captured the completed project, documenting the interplay between light and the timber structural frames. These images highlight the project's material identity and the clarity of its spatial organization. The documentation serves as a critical record of how the 140-square-meter footprint achieves its intended architectural and functional goals.
8Impact on Residential Design
Espiga House demonstrates the potential of timber-based structural systems to elevate residential design beyond standard construction methods. By prioritizing structural articulation, the project offers a blueprint for future extensions that seek to blend materiality with spatial efficiency. It remains a significant example of modern Chilean residential architecture completed in 2026.
Original article: ArchDaily Global — Espiga House: Timber Structural Innovation in Las Condes