Under the Willow Tree House by Objekt Architecten – A Sustainable Countryside Retreat in Belgium

Nestled in the village of Ninove, Belgium, Under the Willow Tree House by Objekt Architecten is a thoughtful renovation and extension project that blends history, ecology, and contemporary design. Originally built in 1904 as a holiday home, the residence has been transformed into a 160 m² sustainable family house while preserving its original charm.

The design was inspired not only by the home’s elevated location with sweeping countryside views but also by the presence of a magnificent weeping willow tree, which gives the house its name. This natural landmark guided both the spirit of the renovation and the family’s vision of living close to nature.

Preserving Heritage and Introducing Modern Design

Objekt Architecten retained much of the old brick façade to safeguard the home’s historical character. At the rear, a new contemporary extension was seamlessly integrated, clad entirely in black tiles across both roof and façade. This bold addition contrasts yet complements the original structure, symbolizing the dialogue between tradition and modernity.

The spatial program was carefully designed around the clients’ needs: four bedrooms, a ceramic studio for the artist-owner, and an open-plan kitchen and living space that connects fluidly with the surrounding garden. Large windows invite abundant natural light while framing picturesque countryside views, creating a warm and inviting atmosphere.

Ecological Materials and Sustainable Living

Sustainability was at the heart of the project. Together with PUUR-bouwen & Giant Projects, the architects prioritized bio-ecological materials. Hemp lime insulation and cellulose roof flakes provide excellent thermal performance. Interior walls are finished with loam plaster, while the bathrooms feature tadelakt, a traditional lime-based, water-repellent finish.

The load-bearing wooden floors and kitchen crafted from block boards with recycled formwork doors further emphasize the eco-conscious approach. These natural finishes not only improve indoor air quality but also create a healthy, tactile living environment.

High-Performance Joinery and Energy Efficiency

Windows, produced by Mondian in Austria, feature a dual finish: black aluminum externally for durability and timber internally for warmth. Triple glazing, a heat pump with borehole heat exchanger, and a ventilation system with heat recovery ensure maximum energy efficiency, reducing the home’s carbon footprint while guaranteeing year-round comfort.

A Garden That Grows With the Family

The 4,500 m² plot is designed as a living landscape rather than a paved surface. Parking areas are finished with gravel lawns, while floating steps lead through a bee-friendly garden to the entrance and studio. The family has already added an outdoor bath and a fruit-picking maze, reinforcing the idea of a home that evolves naturally with its inhabitants.

The result is a climate-conscious countryside retreat that merges ecological construction, family living, and a poetic connection to nature. With its large windows, sustainable materials, and lush green surroundings, Under the Willow Tree House feels both timeless and contemporary—a home where heritage meets future living.

All Photographs are works of Bert Vereecke Photography