The thoughtful renovation and expansion of the Crespo Foundation's protected landmark building demonstrates how to honor architectural heritage while meeting contemporary needs. By seamlessly integrating modern design with the existing structure, the architects expanded the building's possibilities, creating an ensemble that embodies both tradition and innovation.

In renovating the Crespo House, Schmidt Plöcker Architects unified Ferdinand Wagner's originally separate 1950s structures into a cohesive whole. Restored façade details and faithfully reconstructed stairwells preserve the building's historic character, while strategic interventions drive functional progress. A glazed roof now floods the exhibition space below with natural light, replacing the original courtyard ceiling. A new, prominent staircase improves public access and ensures barrier-free circulation throughout. The extension's signature feature is its sculptural flying roof—a freeform canopy that seems to float over the structure like a leaf, establishing a visual dialogue with the adjacent Carmelite monastery. Transparent glazing creates a seamless flow between interior and exterior, echoing the foundation's open spirit. Meanwhile, extensive green roof plantings reinforce the ecological framework and anchor the building harmoniously within its urban context.

Throughout the renovation and expansion, the architects prioritized resource-conscious construction: preserving and reusing existing structures minimized material consumption and conserved the embodied carbon already invested in the building.

www.schmidtploecker.de

Photos:
Lars Gruber
www.larsgruber.de

(Published in CUBE Frankfurt 01|25)