Fort Haasbroek sits in the Namib coastal desert near Swakopmund — a landscape of extreme diurnal temperature swings, persistent Atlantic fog, and a wind that scours anything left exposed. The building answers these conditions not with insulation and mechanical services but with mass: thick concrete walls and a sequence of barrel vaults that behave like the adobe structures of the Sahara, absorbing the heat of the day and releasing it slowly through the night.
The roof vaults are lit by crescent-shaped apertures cut into the curve at the crown — narrow slots edged in red-painted steel that track the angle of the desert sun and scatter reflected light across the underside of the vault. The result is a space that is simultaneously fortress-like in its mass and luminous in its interior quality: a carved-out rather than assembled architecture.
The interior is unfinished in the conventional sense — concrete floors, raw walls, reclaimed timber, a mezzanine level accessed by a handmade ladder stair. The building does not pretend to be anything other than what it is: a shelter engineered for the climate of the Namib, and a working space in which material and structure are never concealed behind a skin.
Built while Booyens was employed at Bob Mould Architects in Walvis Bay — the desert landscapes of this period would continue to inform his work in earth and mass construction throughout his career.