Castelar House: A Modern Approach to Heritage House Restoration by SOLAR

Introduction to Castelar House Restoration

Castelar House stands as a compelling example of how contemporary design can seamlessly blend with historic architecture through innovative heritage house restoration. Designed by the architectural studio SOLAR and located in Madrid, Spain, this project exemplifies the delicate balance between preserving the past and embracing the future. Lead architects Pablo Canga and Ana Herreros approached this restoration with the vision of reviving the memory of the original structure while introducing modern functionality and sustainable design.

Reviving History Through Heritage House Restoration

The project centers around the refurbishment of one of the few remaining homes from the 19th-century Madrid Moderno development, an area once shaped by garden-city ideals. Over the years, rapid urbanization had led to the loss of many of these homes, with only fourteen surviving today. The house had fallen into a state of disrepair, necessitating the reconstruction of its structure while preserving the listed Neo-Mudejar facade.

Through strategic demolitions and careful planning, the original L-shaped layout of the home, built around a central courtyard, was restored. This layout, dating back to 1890, once again became the heart of the residence, allowing light and air to penetrate deep into the interior spaces.

Balancing Traditional Craftsmanship and Modern Innovation

A defining feature of the Castelar House restoration is the contrast between its front and rear facades. The front facade was restored using classical techniques, including hand-drawn templates, bespoke woodwork, and traditional craftsmanship. This approach ensured that the house retained its historic charm and connection to the architectural heritage of the area.

In contrast, the rear facade embraces modernity. Large openings were introduced to enhance natural light and ventilation, while a lightweight skin made from perforated recycled aluminum was applied. This industrial material, precisely cut using numerical control technology, not only facilitated construction but also ensures easy maintenance and potential reuse in the future. The duality of tradition and innovation reflects the architects' philosophy of respecting the past while preparing the home for future needs.

Spatial Fluidity and Visual Connectivity

The interior of Castelar House is characterized by a series of interconnected rooms that promote spatial fluidity. Large openings between rooms and the stairwell create a sense of visual continuity as one moves through the home. These openings allow natural light to filter through and offer cross-views that connect various parts of the house. The central courtyard further enhances this sense of openness, establishing a direct visual link between indoor and outdoor spaces.

Sustainability and Ecological Responsibility

Heritage house restoration often involves more than aesthetic concerns; it is increasingly viewed as an ecological responsibility. Castelar House exemplifies this approach by prioritizing energy efficiency and sustainable practices. The project retained as many existing materials as possible, reducing construction waste and honoring the embodied energy within the original structure.

Bioclimatic strategies were integrated into the design, including thermal insulation, high-performance windows, aerothermal heating systems, and optimized cross-ventilation. These measures led to a remarkable reduction in energy consumption, cutting it by over 70%. This commitment to ecological ethics underscores the architects' belief that preserving and transforming old buildings is a critical component of sustainable urban development.

A Model for Heritage House Restoration

The restoration of Castelar House by SOLAR is a masterful synthesis of architectural heritage and contemporary design principles. By carefully preserving the building's historical essence while introducing modern materials and sustainable systems, the project exemplifies the potential of heritage house restoration. It serves as a reminder that buildings are not merely static objects but evolving entities capable of adapting to the needs of the present while carrying the stories of the past into the future.

All Photographs are works of Adriá Goula