Volume Unboxed night-time shading panels

    Sustainable Design

    Unboxed – A prefabricated timber building for the Mediterranean in Polignano a Mare

    A fully prefabricated, demountable and 100% recyclable X-lam house, designed to demonstrate that timber construction is a viable alternative to brick and mortar in southern Italy.

    2014 · Polignano a Mare, Apulia · Residential · Sustainable Design

    Beyond the box: timber as a Mediterranean home

    Building a house with load-bearing walls in CLT inevitably means building a ‘box’. Unboxed takes this technical constraint and transforms it into a design theme: accepting the box-like structure (which is the compositional principle of 99% of Mediterranean homes) in order to overcome its limitations. The project is designed for Polignano a Mare, in Puglia, where the typology of the white house with clean volumes and a balanced relationship with solar light and the landscape is a deeply rooted cultural feature. Unboxed does not imitate tradition: it translates it into modernity with a different construction system, demonstrating that the prefabricated timber building can be fully Mediterranean.

    The high standardisation of the modules and their complete prefabrication allow for four dimensional variants based on different spatial requirements. Every structural element (floors, walls, joinery, eaves) is designed to be installed fully finished, both internally and externally, without thermal bridges. This approach opens the door to industrial solutions for mass production and cost reduction, without compromising on architectural quality. Even the shading panels, cut using CNC machines, are designed with calibrated angles for summer shading and can be customised with four different base patterns.

    Sustainability is not just a slogan. The house is 100% recyclable and can be completely dismantled thanks to an innovative steel foundation that eliminates the need for excavation, insulates against ground damp and houses most of the building services. The low-pitched roof allows for the installation of solar tiles capable of generating both electrical and thermal energy. The glazed corridor dividing the living and sleeping areas is not merely a functional element: it is a passage into nature, a transitional space that re-establishes visual and sensory contact with the surrounding environment with every crossing.

    The design of the interior spaces confirms the design intent: bespoke furnishings alternate with industrial-style pieces, demonstrating the potential of these homes when designed with attention to technical and aesthetic detail. The living area is organised around a large fitted wall unit, the centre of which is a bioethanol fireplace dominating the central perspective; the sleeping area, with two bedrooms and a bathroom, features full-height panelling that conceals flush doors leading to the walk-in wardrobe. The dominant white colour, the interplay with light and the dialogue with the surrounding nature complete the transposition of the characteristics of the Mediterranean home into a contemporary wooden interpretation.

    Renders & Photos

    Exterior, Unboxed, Rainy Scene, Campaign
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    The building in its natural setting: its white facade blends seamlessly with the landscape, even on rainy days, reflecting its Mediterranean character.

    Technical specifications

    Location
    Polignano a Mare, Apulia, Italy
    Year
    2014
    Client
    Marlegno (competition)
    Typology
    Prefabricated detached house
    Area
    100 m² (main version; 4 variants available)
    Status
    Concept with detailed design
    Designers
    Micaela Colella (Project Leader), Maurizio Barberio (Principal Architect)
    Awards
    WA Award Cycle 20 (World Architecture Community Award)
    Publications
    ArchDaily, eVolo Magazine, Inhabitat, Architizer (Idea 996802), World Architecture Community, Pinterest. All links can be found by searching for "Barberio Colella Unboxed"

    Technical drawings

    Exploded axonometric view of Unboxed modules
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    The axonometric diagram shows the building broken down into basic structural elements, each of which can be assembled ready-fitted.

    Does it make sense to build a timber house in the Mediterranean climate of Southern Italy?

    In Southern Italy, the prefabricated timber building is still perceived as a foreign product, designed for northern climates. Anyone considering this alternative faces a double dose of scepticism: cultural (‘here we build with brick and mortar’) and technical (‘timber doesn’t cope with the summer heat and humidity’). In reality, the problem isn’t the material but the design: a wooden house designed without consideration for the Mediterranean climate (solar shading devices, ventilation, relationship with light) simply won’t work. But it wouldn’t work in brick and mortar either. Unboxed demonstrates that a timber version of the Mediterranean home is possible when the design is tailored to the context: shading panels designed for Apulian summer radiation, a ventilated foundation that insulates against damp, and a building envelope free of thermal bridges.

    Frequently Asked Questions

    The costs for a prefabricated timber building start at around €1,200–1,500 per square metre for the structure alone (turnkey, excluding land and foundations). Compared to traditional brick-and-mortar construction, the cost per square metre may be slightly higher, but construction times are drastically reduced (8–12 weeks for assembly), with significant savings on labour, hire costs and unforeseen expenses. The real economic benefit becomes apparent over the building’s life cycle (LCA): lower energy consumption, reduced maintenance, and the possibility of dismantling and relocating the building.

    Yes, provided the design is tailored to the Mediterranean climate. There are three critical factors: adequate solar shading (in Polignano, Unboxed uses CNC-cut panels with angles designed to block summer solar radiation), natural ventilation (the glazed corridor and openings create air circulation), and humidity management (the steel foundations lift the house off the ground and create a ventilated cavity). The CLT building envelope, with its thickness and thermal mass, helps to stabilise the internal temperature.

    The CLT (Cross-Laminated Timber) house uses solid CLT panels as load-bearing walls, it functions as a rigid structural box, similar to traditional masonry. The timber-frame house uses wooden studs and joists with lightweight infill panels. CLT offers greater thermal mass (useful in the Mediterranean climate for delaying the transfer of summer heat), better sound insulation and greater fire resistance. Unboxed chooses CLT precisely because its structural and thermal behaviour is closer to that of a traditional Mediterranean brick-built house.

    Yes, if the design is conceived from the outset to be dismantled. At Unboxed, the steel foundation eliminates the need for concrete casting and allows the structure to be removed without damaging the site. Every structural element (walls, floors, roof, and joinery) is assembled using reversible mechanical connections, not permanent adhesives. This makes the house fully dismantlable, transportable and reassemblable at a new site. It is also fully recyclable at the end of its life.

    The key is intelligent modularity. Unboxed offers four size variants based on the same basic building elements, and the shading panels can be customised with different patterns thanks to CNC cutting. Standardisation applies to the components (mass production, cost reduction, consistent quality), not the final result: by combining modules and finishes in different ways, each house can have its own character.

    Barberio Colella Architetti, based in Bari, developed Unboxed as a specific research project on prefabricated timber buildings for the Mediterranean region. Co-founder Micaela Colella dedicated her doctoral research to sustainable prefabricated Mediterranean homes in the Industry 4.0 era, with publications in Springer Nature. The firm combines verifiable academic expertise with design experience in the Apulia region. ---

    Are you considering buying a timber house in Puglia or southern Italy?

    Unboxed was founded on the belief that timber construction can be truly Mediterranean. If you’re considering a prefabricated timber building for the climate of southern Italy (or if you want to find out whether it’s the right choice for your project) we can discuss it with you, drawing on concrete data and expertise.

    Let’s talk about your project

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