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Loggias and Parasitic Stairs Enhance Community Living in Urban Duplex Design

Authors:
Elisa Laiti, Giulia Pradel, Daniele Salzani
Loggias and Parasitic Stairs Enhance Community Living in Urban Duplex Design
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Incorporating loggias and vertical parasitic stairways, the design fosters social interaction and communal living within urban Duplex Apartments.
5 key facts about this project
01
Loggias are integrated into the West facade to extend private living areas outdoors.
02
Parasitic stairways connect simplex apartments, promoting social interaction.
03
The design includes a diagonal stair leading to a communal covered square.
04
Each unit maximizes natural light through thoughtful spatial arrangements.
05
Gardens adjacent to the covered square enhance the overall community experience.

The design features a series of Duplex Apartments in an urban setting. It focuses on enhancing community interaction through thoughtful planning and arrangement of spaces. The design concept seeks to create an environment where residents can connect, fostering a sense of belonging while meeting the practical needs of modern city living.

Duplex Apartments

The residential setup includes both Duplex and Simplex Apartments, allowing for flexibility in how people choose to live. Some duplex units have been converted into simplex formats. This change helps to maximize space and meet varying needs of residents. Careful consideration has been given to how these units function within the community.



Loggia Integration

A distinctive aspect of the design is the addition of loggias along the West facade. These outdoor spaces expand the usable area of the apartments and offer opportunities for residents to spend time outside. Loggias support interactions among neighbors, fostering community ties while also enriching the building's overall aesthetic.



Vertical Connectivity

The design also incorporates parasitic stairways on the East facade, which facilitate movement between simplex units. These stairways enhance accessibility and encourage residents to engage with each other. By making it easier to navigate the building, the design promotes a sense of community and shared living.



Social Focal Point

At the heart of the design lies a diagonal stair leading to a covered square. This area connects different levels of the building and serves as a communal space for gatherings. Overlooking adjacent gardens, it invites residents to come together, creating a lively atmosphere for social interaction.



Design details highlight the carefully considered balance between private living spaces and community areas, ensuring light and flow throughout. The thoughtful integration of elements cultivates a strong sense of connection among residents while responding to the dynamics of urban life.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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