Salt D´Aigua

Residential complex in Mallorca ​​Spain
Salt d’Aigua — Local Stone and Concrete Material Study

Residential. Mallorca, Balearic Islands, Spain. 1,396.56 m²+ exterior. 

Salt d’Aigua is a contemporary Mediterranean residential development on the steep hillside of Port d’Andratx, Mallorca. Designed as a cluster of 10 independent duplex villas, a shared clubhouse and a pool solarium, the project uses the slope to maximize sea views and connect architecture with the landscape. Local stone excavated from the site is reused in the façades and interior finishes, creating a robust, economical and site-specific architecture rooted in the terrain.
Exterior view of Salt d’Aigua by COMETA Architects, showing stepped stone villas, timber shutters, planted terraces and private outdoor spaces integrated into a wooded hillside in Port d’Andratx, Mallorca.
Rocky Mediterranean shoreline and pine-covered hillside at the Salt d’Aigua site in Port d’Andratx, Mallorca, with a paddleboard floating in the foreground.
Front view of Salt d’Aigua by COMETA Architects, showing stepped stone villas, timber shutters, cascading pools and Mediterranean landscaping on a hillside in Port d’Andratx, Mallorca.
Site plan of Salt d’Aigua by COMETA Architects, showing ten independent duplex villas, private pools, landscaped terraces, internal access roads and the shared clubhouse in Port d’Andratx, Mallorca.
Bedroom interior at Salt d’Aigua by COMETA Architects, featuring local stone terrazzo flooring, an exposed aggregate wall, dark timber joinery and soft natural light in Port d’Andratx, Mallorca.
Architectural floor plans of Salt d’Aigua by COMETA Architects, showing the duplex villa typologies, private pools, living areas, bedrooms, shared clubhouse spaces and covered parking in Port d’Andratx, Mallorca.
Location Mallorca, Spain
Size 1,396.56 m²+ exterior
Collaborator Manu Pomar ( PomARQ)
Typology Competition, 2nd Place
Client Private
Status Unbuilt
Photos Cometa architects
Front view of a Salt d’Aigua villa by COMETA Architects, featuring a reused local stone façade, full-height timber shutters, Mediterranean planting and stepped hillside residences in Port d’Andratx, Mallorca.

The project is the result of a closed competition promoted by the investors, in which Cometa Architects was awarded second place.

The architectural strategy, construction logic and material approach were developed in response to the promoter’s requirements: to create a contemporary Mediterranean development that was coherent with the landscape, technically feasible and economically controlled.

The proposal was developed around a clear typological and economic framework established by the investor’s brief. Rather than proposing a conventional residential block, the project is conceived as a compound of 10 independent houses and a shared clubhouse, organized in small clusters across the slope to preserve the feeling of individual villas and maximize sea views from every home. It consists of 10 A/B typology houses, one shared clubhouse and one solarium with swimming pool, with a total computable area of 1,396.56 m². Each A/B house is conceived as a duplex villa with an equal computable area of 126.90 m², while its total built surface and terraces vary slightly according to its position on the slope and the opportunities offered by the terrain.

The shared clubhouse is located at the lower part of the site, next to the access road, acting as a social and wellness pavilion with parking, sauna, changing rooms, lounge areas, library, yoga and fitness spaces, exterior spa areas, solarium and cascading pools.

Architectural section of Salt d’Aigua by COMETA Architects, showing ten stepped duplex villas, private pools, terraces, parking areas and a shared clubhouse following the steep hillside of Port d’Andratx, Mallorca.
Interior detail at Salt d’Aigua by COMETA Architects, featuring exposed local stone walls, a built-in concrete bench, irregular pale stone flooring and filtered Mediterranean sunlight.
Living and dining interior at Salt d’Aigua by COMETA Architects, featuring custom timber furniture, local stone terrazzo flooring, suspended lighting and panoramic sea views in Port d’Andratx, Mallorca.
Private terrace at Salt d’Aigua by COMETA Architects, featuring a swimming pool, shaded outdoor dining area, integrated seating and panoramic views over Port d’Andratx, Mallorca.

The complex is arranged as a stepped sequence of dwellings, terraces, pools and exterior spaces. The organization creates a continuous relationship between architecture, topography, views, water and horizon, allowing each home to benefit from the slope rather than being limited by it.

Materiality is central to the concept. The project works with the reuse of stone excavated from the site as a key architectural and environmental gesture. Rather than treating the excavation material as waste, the stone is cut into smaller pieces and reused in the façades. The exterior walls are conceived as an aggregate of local stone fragments cast within concrete, a contemporary construction system that gives the buildings a mineral, solid and site-specific character.

This construction method is deliberately modest and pragmatic. It operates as a threshold between an affordable construction solution and a renewed interpretation of vernacular building techniques. The result is not a decorative surface, but a constructive expression of the terrain itself: the building is made from the material that comes from the land.

The exterior material combines concrete and small pieces of local marès stone, creating a warm, textured and robust façade. Inside, the project continues this logic through terrazzo-like surfaces made with aggregates of local stone, reinforcing the idea of continuity between excavation, construction, interior and exterior finishes.

Close-up of the Salt d’Aigua façade by COMETA Architects, formed with warm concrete and exposed fragments of reused local stone from the Port d’Andratx site in Mallorca.
Wellness clubhouse interior at Salt d’Aigua by COMETA Architects, featuring an indoor spa pool, timber fitness equipment, lounge seating and views towards a private Mediterranean courtyard in Port d’Andratx, Mallorca.
Exterior view of Salt d’Aigua by COMETA Architects, showing stepped stone villas, private terraces, swimming pools and Mediterranean landscaping overlooking Port d’Andratx harbour in Mallorca.

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