Zigzag House by Architectare: Modular and Economical Family Cottage in Petropolis

Modern house with an outdoor relaxation area, rich landscape and pool in a forest setting demonstrating innovative architecture and stylish outdoor design

In Petropolis, Brazil, the Zigzag House by Architectare reimagines affordable residential architecture with a modular system that combines practicality, warmth, and connection to nature. The design targets a young couple with two children, reflecting the dream of building their first home within a limited budget while ensuring flexibility for future growth.

Modular Concept and Layout

The house is organized into three separate blocks — service, public, and intimate. Their intersections form squares acting as transitional spaces, one of which is a central winter garden separating private bedrooms and leisure areas. This garden adds greenery and natural light, creating a calm buffer zone and enhancing privacy.

At the intersection of service and public blocks, the roof expands to form a kitchen balcony terrace. Equipped with a skylight, it directly connects to the pool patio and dining area, creating the heart of the home where cooking, relaxation, and social gatherings blend seamlessly.

Lightweight and Efficient Structure

To meet budget constraints and allow for phased construction, Architectare used a lightweight metal structure. The single-story house avoids heavy slabs, instead using a raised floor supported by concrete foundations, keeping the home 35 cm above ground — an important response to historical minor flooding on the site.

Aluminum sandwich roofing provided quick assembly, thermal comfort, and sound insulation. By leaving the structure open, architects emphasized its efficiency and achieved a language of architecture marked by lightness and clarity.

Warm Interiors and Integration with the Street

To counterbalance the industrial character of metal, interiors were clad with peroba wood panels on the slopes of ceilings in public and intimate blocks. This material adds warmth and a sense of home, contrasting with the economical gypsum board in bathrooms and service areas.

Large sliding glass panels connect each room to the street, transforming bedrooms and leisure areas into extensions of the garden. Planned future additions such as sliding blinds for shading and a rear pavilion structure will further expand the home's adaptability and strengthen dialogue between internal and external spaces.

A Family Home Built on Simplicity

Despite its modest budget, the Zigzag House demonstrates that carefully planned design and modular layout can create a family home that is both economical and architecturally rich. Its zigzag layout, integration of natural elements, and thoughtfully chosen materials create housing that is not only functional but deeply personal.

Focusing on modularity, efficiency, and flexibility, Architectare created a home that grows with the family — proof that simplicity and accessibility can coexist with architectural sophistication.