Welcome to Topiα Landscapes

Every space holds the potential to bloom ! Through Topiα, we craft landscapes where nature takes root, where soil, water, and light are shaped by thoughtful design, and each project becomes a living dialogue between people and place.
Based in Brussels, we blend creative vision with hands-on expertise in landscape architecture and planning, working across all scales and contexts.

Green roofs & urban gardens

Expertise with green roof systems, water retention, raised beds, regular and interior gardens.

Landscape Masterplanning

Large-scale landscape design with ecological focus.

Natural pools
& ponds

Expertise in chemical-free pools and ponds with natural filtration.

Green walls
& facades

Vertical garden systems for biodiversity, insulation, and visual impact.

Our Team

A collective of landscape architects and designers, equally passionate about gardening, education, and artistic creation.

Driven by a passion for nature, Holger began by shaping family gardens before moving on to larger-scale projects. With a master’s in landscape architecture, he combines design, teaching, and fieldwork across Belgium, Ethiopia, and beyond.

Trained in France, Julie now works as a landscape architect in Brussels, where she explores the city’s hidden heritage with curiosity and care. She teaches in two Belgian universities, and her projects span France, England, Ethiopia, and the Middle East.

A multidisciplinary designer with skills in product design and visual communication, shaped by experiences in Tunisia, Greece, and Belgium. His work also incorporates business and accounting insights, adding strategic depth to his creative practice.

Our Services

We offer tailored solutions for every scale and setting, backed by international experience and a deep understanding of living systems. Explore our core services.

Backyard or front garden? Balcony or rooftop? Raised beds or a green wall? Whatever your space, we help turn your ideas into living, thriving realities.

Let’s talk about ponds: to enjoy the beauty of nature, attract wildlife or even cool off with a refreshing dip during a heatwave.

For professionals or solo adventurers seeking expert advice: which trees, plants, or materials will thrive in your site’s specific conditions? Let’s find the best fit together.

Our approach

We believe in designs that grow from the ground up : intuitive, thoughtful, and deeply connected to place.
Hand sketching is at the heart of our process: it keeps ideas fluid, human, and open to dialogue. Digital tools also play a key role, from plan development to 2D and 3D simulations.
Each project finds its balance between creativity and context, guided by authenticity rather than trends.

Ready to let something grow?

Whether you're dreaming of a new space, looking for guidance, or planning your next step, we're here to listen and collaborate. From early sketches to a detailed quote or a first appointment, we’d be happy to hear about your plans.

E-mail : [email protected]Phone : +32 498 30 86 08