A new architectural landmark is taking shape in Knokke-Heist, where the Hoost project is redefining the relationship between contemporary architecture, community space and advanced façade engineering. Designed by Paris-based architects Jakob + MacFarlane together with Belgian firm B2Ai, the development transforms the former town hall site in Heist-aan-Zee into a mixed-use “Community House” that combines residential living with public functions and urban interaction.

Developed by CAAAP and built by Artes Depret, the thirteen-storey project stands out through its bold architectural expression. The façade, composed of colourful stacked volumes inspired by traditional coastal houses, gives the tower a strong visual identity while remaining sensitive to its urban context. A detailed shadow analysis shaped the final building volume, ensuring maximum daylight for surrounding structures and reinforcing the project’s sustainable urban integration.

Beyond the tower itself, Hoost reshapes the surrounding public realm. Former parking and market areas are being converted into an active city square designed for community events, sports and social life. The lower levels will host a library, café, council chamber and event spaces, positioning the building as a civic destination rather than a purely residential complex.

From a technical perspective, the coastal location introduced demanding challenges. Exposure to wind, salt and moisture required robust façade solutions capable of delivering long-term durability while maintaining architectural precision. Working closely with fabricator Kurt Van Tomme, Reynaers Aluminium supported the feasibility analysis and technical development of the façade and joinery systems.

Digital workflows played a key role in the execution process. The design was visualised using advanced virtual reality tools before being developed in BIM, allowing all connections and interfaces to be coordinated in detail. A full-scale façade mock-up was also constructed to test watertightness, material transitions and installation logic, reducing risks and optimising production efficiency.

The project integrates several high-performance aluminium systems, including MasterLine 8 windows and doors, the ConceptWall 50 curtain wall, and MasterPatio sliding systems. Together, they deliver slim sightlines, excellent energy efficiency and strong air, wind and water performance, essential characteristics for seaside construction. Custom anchoring solutions ensured seamless integration between sliding doors, waterproofing layers and interior finishes.

Colour remains central to the architectural concept. Four core tones were carefully developed in collaboration with coating specialist Sherwin-Williams to ensure consistency between aluminium joinery and façade cladding. Pre-anodised aluminium profiles combined with Qualicoat Class 2 powder coating provide enhanced resistance against aggressive marine environments while preserving long-term colour stability.