Garden Pavilion and Earth Oven
Helchteren, April-July 2024
Helchteren, April-July 2024
'After carefully mapping the site and gathering the dreams and needs of the community, we conceived an ensemble consisting of a garden pavilion and an earthen oven. With this duo, we hoped to transform the garden of the Pastorie into a welcoming, informal space for everyone—a place to meet and relax.
Taking on roles as material designers, managers, communicators, participation mediators, and even activists, we harvested materials, organized the building site, and produced and constructed the pavilion and oven, both for and with the community. Theoretical knowledge, hands-on skills, shared ambitions, and activist mindsets came together in this phase. The intervention is both low-impact and high-quality, making the beauty and social value of regenerative architecture tangible to a wider public.
Throughout the building phase, we stayed on-site, camping—or perhaps squatting—at the Pastorie. Friendly neighbours stopped by daily to lend a hand, offer tools, bring homemade cake, or simply keep us company. It was a heartwarming experience—something we could have never imagened at the beginning of this Building Beyond Borders journey.
Today, the community has fully embraced this new space. Sunday afternoon tea parties, pizza baking courses, and informal gatherings are now regularly held here. You might also randomly come across a mother or grandfather sitting in the pavilion, quietly reflecting while their (grand)children play in the garden.'
'I could talk for hours about the pavilion and the oven, their positioning, dimensions, materiality, and the entire building process, .... It was truly an incredible journey.
At the start, I didn't have a clear vision or idea of what we would design or build. We first needed to connect as a team, understand the needs and culture of the people we would build for (since most of us weren't from Belgium) and carefully analyse the space of the Pastorie, especially the garden.
We introduced ourselves to the Friends of the Pastorie, to the municipality and the neighbours at our first community meeting through a poem, wording our shared ambitions. Then the idea of a pavilion emerged, but it took us quite a while to determine its final location and form, as we shifted between drawings and material explorations. The pizza oven, designed as a landmark at the garden entrance and as a link between the pastor’s house and the pavilion, was a added feature to bring people together through cooking. We all know the uniting power of home-made pizza and freshly baked bread!
Throughout the year, we learned to navigate working together as a diverse team. It wasn’t always easy - harvesting materials, managing the building site and activities, camping at the Pastorie, protecting ourselves and the construction from relentless rain, producing over 2000 wooden shakes, and more - but the support of the friends of the Pastorie and the community kept us going.
Today, I'm very proud of what we created. The ensemble complements the Pastorie 'as if it couldn't have been done any other way'. Built with only natural and reclaimed materials, this is the result of a thoughtful, dedicated design-and-build process, working as one, with and for the community.'
A space designed with care, for those who feel forgotten.
A space designed in silence, for those who need some rest.
A space for times of fun, for the hidden child inside.
A space designed with patience, for those who need more time.
A space designed with maybes, for those who don’t know it yet.
A space open to the senses, for those who want to reconnect.
A space open to challenges, for those changing the tide.
A space through conversations, for those curious to try.
A space for celebration, for those crafting it by hand.
A space that is adaptable, for those who always change.
A space for falling in love, with what was always there.
A space without an end, as it’s only a beginning.
A space by us, with you, for you.
The Garden Pavilion
'This was the right place for the pavilion: along the line of beech trees, under the canopy of leaves, with a view to the somewhat bewildered garden. But it wasn't until we had cleared the enourmous pile of pruning waste - that was assembled by the pastor, during his lifetime at the Pastorie - that we could see the full potential.
On one side, we digged a lengthy whole and filled it with reclaimed sand, gravel and pavement stones as a foundation for the bench. On the other side, we opted for screw foundations as a light and reversible choice.
We made concrete slabs to fix the brackets for the A-frames and to evenly spread the weight of the CEB's for the bench. The slabs are prefabricated and can be reused in future.
We tested the dimensions of the wood structure with a 1:1 mock-up and refined the detailling accordingly. The assembled the frames out of 2m-length wooden beams: reclaimed oak for the horizontal and vertical sections, pine (from written-off formwork) for the roof trusses.
In between the A-frames, we earth-masoned a bench and back wall with CEB's to give the construction its weigth and prevent it from being lifted or deformed by the wind. The floor, seating and top of the wall are made from short-length oak leftovers, treated with a biobased and nature friendly oil.
The ridge cap and gutter are custom made, new, in aluminium because that is the only material that withstands the tanine dripping from the shakes and the overarching beech trees.'
Final details: the steps, made from 'urban harvested' gabions and filled with reclaimed cobble stones from the houses that are up for demolition, and the custom made gutter, ridge and skirt.
Shakes for the roof
'After participating in the hands-on wood workshop, led by Ante Corthals, we were absolutely convinced to cover the roof of the pavilion with hand-made shingles - or rather, shakes - because of their tactile beauty and durability. We didn't know what we were getting ourselves into!
Our journey began with purchasing eight 12-meter chesnut logs at the annual auction of Natuur & Bos, sourced from local trees felled to maintain healthy forests. We (Ramses!) chopped them into 50cm quarterpieces, for easier transport to Helchteren.
Hand-splitting shakes is a time consuming activity, but is a more durable techique than industrial methods. The quarterpieces are cut into smaller slices and carefully split along the natural grain with a shake axe - a task that can only be done with freshly harvested wood. Next comes the meticulous work of removing the soft parts, timming each slice into a rectangule, smoothing the surface and partially flattening it. Then repeat, ... 2000 times!
By mid-June, we were exhausted. The constant rain, the grey skies, sleep deprivation and sheer scope of the task left us drained, with still 800 shakes to go. Yet, knowing we were building this for the Friends of the Pastorie, the neighbors, and everyone we’d met during the festival renewed our energy. We set up a ‘shake factory’ to streamline the tools, workflow, and team spirit. It was an incredible experience that taught us the power of shared determination and collaboration.'
The Earth Oven
'While the pavilion required precise hands-on skills, the oven was a true 'build-by-all' project. Children, young mothers, grandparents, and curious onlookers who wanted an oven in their own gardens gathered around, getting their hands (and feet) dirty, all while chatting and laughing together.
The shape of the oven is defined by the inner dome, built to bake two to three pizzas at a time, and by the vision of creating a welcoming garden landmark.
The body is crafted from MEB's- or moulded earth blocks - which are not weatherproof, so we gave it 'boots' with a plinth of reclaimed pavement bricks, a 'hat' from a salvaged metal cover, and a 'raincoat' of two layers of our selfproduced local plaster.
The slanting sides were built in 'terraces' and smoothened with two finishing layers of plaster. Created by many hands, they are not perfect, slightly wavy, but that is exactly what gives the oven its story and charm.'
From the mini-muffin oven where it all started, to the first firing of the earth oven, showing our acrobatic skills, in between the scaffolding.
Earth Blocks
With our ambition to make the beauty of building with bio and geobased materials tangible, we integrated different types of earthen materials in our project, starting from their specific technical characteristics, touch and feel. We used earth blocks (MEBs and CEBs) and earth mortars, produced our own cob and local earth plaster.
Although we could have produced the blocks ourselves, we decided to work with the Léém Blocks from BC Materials, made from excavated earth (from Brussels construction sites), comprising of clays, silts, sands and gravels. Natural clay acts as the main binder. The bricks are moulded in a formwork and dried without additional firing. They come in different colours and with a series of natural mortars.
Moulded Blocks (MEB) contain no additives nor stabilisers. They break down naturaly into raw materials that can be reused indefinitely. Hand-sized and with a nice, soft texture, they were perfect to build the oven. With a plinth, a top cover and 2 layers of plaster the oven is ready to withstand our Belgian weather.
Compressed Blocks (CEB) use 3,85% of cement as a stabiliser, and are more water-resistant, fire-resistant and stronger. Although they also have lead bearing capacities, we used them to build a bench, that - besides inviting people to sit down and enjoy the garden - gives the pavilion its wind stability.
Harvesting
The concept of harvesting infused every stage of the realisation, not only as a goal but as a way of life. Beyond salvaging materials for the foundation, structure, and finer details of their garden interventions, beyond the development of a repurposed, local plaster, the students gathered second-hand housewares to make their stay at the Pastorie more comfortable, and cooked daily meals from Too Good to Go ingredients.
Fueled by the dedication of a few, the nearby Proximus building, just a kilometer from the Pastorie, became a live case for harvesting materials. Thanks to the students’ commitment, the Municipality, Werkvennootschap, CVO (Center for Vocational Training), and the Friends of the Pastorie are now actively discussing the potential for urban harvesting from houses set to be cleared for the North-South project. To be continued…
project credits
in parallel with the Pastorie Lab & Harvesting Experiments and the Building Beyond Pastorie Festival
part of the Postgraduate 2023-24 edition Building Beyond Bricks