Valencian architecture practice Fran Silvestre Arquitectos was commissioned to design this house located on the hillside above the castle of Ayora, a municipality in the interior of the province of Valencia, Spain.

The city is the capital of the Ayora-Cofrentes Valley region and is known for its rich history and valuable natural and cultural heritage, among which its castle stands out. The defensive structure, built in the mid-13th century on an ancient Moorish construction, stands 552 m above sea level in the center of town, becoming a landmark for the entire city.

The building designed by Fran Silvestre Arquitectos, located in a landscape of singular beauty, seeks to integrate into its surroundings, respecting its urban strategies of adaptation to the environment and its materials. It distances itself from historicist mimesis, offering a contemporary formal and functional response.

A piece built with the same whitewash, with a resounding exterior tectonics. Inside, everything is organized around the void generated by the communication core, arranged parallel to the mountain cut, without touching it. The garage and cellar are located on the ground floor; above this, a two-story volume with four rooms is arranged. Two of these, the bedrooms, on the intermediate level, open onto the private street; the other two, on the upper level, overlook the Ayora Valley above the homes opposite. The day areas are located on the mountain, overlooking the garden illuminated by the southern light reflected on the castle's rusty slope.

House on a castle’s hillside by Fran Silvestre Arquitectos. Photograph by Fernando Alda

House on a castle’s hillside by Fran Silvestre Arquitectos. Photograph by Fernando Alda.

Project description by Fran Silvestre Arquitectos

The building is located in a landscape of unique beauty, the result of natural and evident growth. The mountain, topped by a castle, is covered by a blanket housing through a system of aggregation by simple juxtaposition of pieces, generating fragmented target tissue that adapts to the topography.

The project proposes to integrate into the environment, respecting their strategies of adaptation to the environment and materials away from the mimesis that would lead to misleading historicism, and showing the time constructively to meet the requirements of the "new people." In this way, the house is conceived as a piece placed on the ground, joining in the gap. A piece built on the same white lime, the same primacy of the massif on the opening, which takes the edge of the site to have its holes and is integrated into the fragmentation of the environment.

House on a castle’s hillside by Fran Silvestre Arquitectos. Photograph by Fernando Alda.

House on a castle’s hillside by Fran Silvestre Arquitectos. Photograph by Fernando Alda.

The indoor space is divided by the void that is the core of communication, cut parallel disposition of the mountain without touching it. On the ground floor are the garage and cellar, on a volume it has two floors with four rooms. Two of them, the rooms at the intermediate level, are open to the private street, and the other two on the upper level overlook the houses opposite, the Valley of Ayora. One of them, the study is opened in turn to the central double height, incorporating it into their space. Across the gap, and on the mountain, are the areas facing the garden, day illuminated by light reflected on the south slope of the castle oxidized.

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Architects
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Fran Silvestre Arquitectos. Architects.- Fran Silvestre, María José Sáez.

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Project team
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Ángel Ruiz, Jose V. Miguel, Arturo Silvestre.

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Collaborators
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Interior design.- Alfaro Hofmann.
Structure.- Estructuras Singulares UPV | Universitat Politècnica de València.
Quantity surveyor.- Pedro V. López.

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Builder
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Cooperativa Montemayor.

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Area
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Plot area.- 477.06 m².
GFA.- 230.00 m².

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Dates
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Completion.- 2025.

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Venue / Location
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Ayora, Valencia, Spain.

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Manufacturers
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BUILDING SERVICES. Sanitary ware.- Toilet and bidet / Catalano C52 Series. Wash-basins  / Sanico Supercity. Taps.- Bathrooms / Hansgrohe Talis S2. Kitchen / Grohe Minta. Lighting.- Special-sized fluorescent linear luminaire (Studio2). Light Fittings: Jung LS 990 Series.
FINISHES. Flooring.- Interiors / Capri stone, free-cut (large format). Exteriors / Capri stone, free-cut (large format). Cladding.- Walls and ceilings / Gypsum plaster. Bathrooms / Capri stone cladding. Exteriors / Thermal insulation + white mortar (Sate Vipal). Paints.- RAL 9010 matte plastic paint / Valentine.
METALWORK AND LOCKSMITHING. Interior carpentry.- Passage doors and wardrobes / RAL 9010 white lacquered MDF (Carpintería Sergio). Carp. Exterior: Open-pore lacquered wood (Carpintería Sergio). Glazing: Climalit + Stadip safety glass.
FITTINGS: Kitchen: MDF board lacquered in white RAL 9010 (Carpintería Pedro Segura Landete).

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Photography
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Fran Silvestre Arquitectos is a Valencia-based studio founded in 2005 by architect Fran Silvestre. The firm consists of a multidisciplinary team of over 50 professionals and operates in the former workshop of sculptor Andreu Alfaro, a 7,000 m² space. Its work focuses on residential, cultural, corporate, and public projects worldwide, characterized by formal purity, modulation, serialization, and the innovative use of materials and technologies.

Fran Silvestre was born on July 5, 1976, and graduated in Architecture from the Escuela Técnica Superior de Arquitectura de Valencia in 2001. A year later, he specialized in urban planning at the Technische Universiteit Eindhoven (TU/e) in the Netherlands. His training was enriched by a scholarship to work with Portuguese architect and Pritzker Prize laureate Álvaro Siza in Porto, with whom he has maintained collaborations ever since. Simultaneously, he has developed a strong academic career: he has been a professor in the Projects Department at the Polytechnic University of Valencia (UPV) since 2006 and at the European University since 2009. In 2011, he was deputy director of the Valencia School of Architecture, and in 2018, he received the Víctor L. Regnier Chair at Kansas State University (KSU) in the United States. He currently also directs the MArch Postgraduate School in Architecture and Design.

Throughout his career, Silvestre has received numerous awards, including the Fundación Caja de Arquitectos Prize (2001), the Colegio de Arquitectos COACV Prize (2010), and the Red Dot Design Award (2013). In 2012, he was named Ambassador of Spanish Architecture in the United States by the Ministry of Culture and Sports. He has also won the NYCxDESIGN Award (2016), the German Design Award in multiple editions (2016, 2020, 2021, and 2024), the IF Design Award (2021), and the Delta Bronze Award from the ADI Awards (2024).

His work has been exhibited at institutions such as the MoMA in New York and the Museu Serralves in Porto, and published in magazines like Architectural Record, GA Houses, On-Diseño, and Interni. In addition, publishers such as Phaidon, Taschen, and Thames & Hudson have featured his work, with a notable monograph published by Rizzoli in New York, written by critic Philip Jodidio.

Fran Silvestre Arquitectos’ projects are located in various countries, including China, the United States, Brazil, Thailand, Egypt, Croatia, Italy, Australia, Austria, Mexico, and Spain. Notable works include Casa Atrium (2009), Casa de la Ladera de un Castillo (2010), Casa del Acantilado (Alicante), Casa Balint (Valencia), Casa in Hollywood Hills (Los Angeles), the Zibo Master Plan (China), the Hotel-Boutique in Vis (Croatia), and the Eolic Tower (Valencia).

The studio's architecture is influenced by Álvaro Siza and sculptor Andreu Alfaro. According to critic David Cohn, Fran Silvestre’s work does not seek a lost authenticity or geometric perfection but instead creates environments that elevate everyday life through precise and innovative design.

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Published on: August 5, 2025
Cite:
metalocus, SARA GENT
"Abstraction and tradition. House on a castle’s hillside by Fran Silvestre" METALOCUS. Accessed
<http://www.metalocus.es/en/news/abstraction-and-tradition-house-castles-hillside-fran-silvestre> ISSN 1139-6415
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