Sunlit open-air bathroom with a freestanding bathtub amidst a spacious Barcelona apartment.

Barcelona Apartment Transforms Living Spaces with Open-Air Bathroom Design

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Written by Flynn Matthews

2026-08-06

Located in Barcelona’s Turó Park neighborhood, a groundbreaking 635-square-foot apartment by SIGLA Studio shatters architectural norms by placing a bathtub at the heart of daily life with an innovative open-air bathroom. This innovative design challenges the tradition of hidden bathrooms, suggesting instead a fluid living environment where spaces seamlessly connect.

An Open-Air Bathroom: A Radical Approach to Urban Living

Designed for a newcomer to Barcelona, the apartment eschews the usual compartmentalized layouts common in the city. Emphasizing light, openness, and adaptability, the design creates continuous living spaces that evolve throughout the day, much like the unique lavatory concept.

Exploring new architectural approaches, the Shanghai Oasis seamlessly blends water and light for everyday living, offering another take on innovative living spaces.

Sleek wooden vanity with double sinks and large mirror against white tiled walls.

The Central Core: Integrating Key Functions Including Open-Air Bathroom

At its core, the apartment integrates the kitchen, restroom, and dressing area into a single cohesive unit, exemplified by this design. This central hub bridges the private sleeping quarters and the sunlit living area, allowing natural light to flow freely. The strategic use of openings and reflections enhances the illusion of space within these compact dimensions.

This bold architectural design echoes the innovation of shading bay windows effectively, a practical way to control light and enhance space utility.

Minimalist shower enclosure with glass doors and green plants surrounding it.

The Bathtub as a Central Feature of the Open-Air Bathroom

The most striking feature is the centrally located bathtub, prominently framed by a grand archway. Serving as more than a utility, it transforms bathing into an integral part of the living experience. A motorized glass enclosure offers privacy when necessary, but most of the time, it remains open, redefining domestic life within this setting.

Material Harmony and Distinctive Identity

The apartment’s ambiance is enriched by a continuous mineral finish across floors, walls, and ceilings, providing a serene backdrop. The central core features distinct materials: aluminum-clad plywood in the kitchen, glossy forest-green tiles by Cerámica Ferrés in the restroom, and elegant walnut wood in the dressing area. These materials confer individual identity to each function while maintaining overall cohesion within this theme.

Wide view of bathroom area, showing a mix of modern and rustic design elements.

This design offers a flexible living framework rather than a prescriptive lifestyle, blurring room boundaries and challenging traditional privacy notions. It represents a modern, interconnected approach to home life, embracing this open-air philosophy.

Close-up of contemporary fixtures and faucet on a sleek bathroom countertop.
Artistic overhead lighting and greenery enhancing the bathroom's open-air feeling.
A large bathtub adjacent to floor-to-ceiling glass windows with a city view.
View from a living area into the bathroom, seamlessly blending spaces.
Natural stone tiles form a cohesive design around the open-plan bathroom.
Elegant plants and wooden decor emphasizing the bathroom's organic aesthetic.

Source: design-milk.com

Frequently asked questions

What is unique about the Barcelona apartment’s bathroom design?

The Barcelona apartment features an innovative open-air bathroom with a centrally located bathtub framed by a grand archway, challenging traditional norms by integrating the bathroom openly within the living space.

How does the apartment layout enhance light and openness?

The apartment emphasizes light, openness, and adaptability with continuous living spaces, strategic use of openings and reflections, and a central core design that allows natural light to flow freely.

What materials are used in different parts of the apartment?

The apartment features aluminum-clad plywood in the kitchen, glossy forest-green tiles by Cerámica Ferrés in the restroom, and elegant walnut wood in the dressing area, each conferring a distinct identity while maintaining overall cohesion.