The architecture studio U / Define has developed the project to expand the Hotel Astoria, located next to the imposing natural environment that surrounds the municipality of Bad Hofgastein. The construction of the new wing provides 76 rooms and areas for additional activities and entertainment.

The approach has been based on maximum efficiency and the greatest possible occupation of the available space, integrating the functions of the existing hotel with those of the new building. In addition, the entrance from the main street to the interior patio has been repositioned, acquiring greater centrality and prominence.
The extension carried out by U / Define has consisted of the reinterpretation of the typical Austrian chalet architecture typical of the local area. Bad Hofgastein typologies were examined to study their characteristics and materials, including them in the final design.

The project has been carried out with simple, efficient solutions, with robust materials, and flexible in terms of its long-term use, facilitating its maintenance and sustainability with a minimum environmental impact.
 

Description of project by U / Define

INFORMATIVE DESIGN

To expand the hotel's guest capacity by 76 new rooms, a new hotel wing was built. The additional beds required a proportionate enlargement of the restaurant and the construction of a new multifunctional space and additional activity rooms to accommodate the specific entertainment programs of the client. 

The additional program required an almost complete occupation of the available terrain. All new components were described and analysed with their own conditions to inform the design.

A hotel functions by the internal organisation of the building. The connection between the various public, semi-public, private spaces and the proximity of the supporting functions requires an efficient layout.

The interior of the existing hotel flows seamlessly into the new building. To restore the balance of the building complex between the existing and the new, the heart of the hotel was repositioned from the main street to the new inner courtyard between the two wings. It forms an important pivotal point in the project: the new multifunctional space located here has direct connections to the new lobby, the renovated restaurant and the new activity areas. By repositioning the main entrance of the hotel, it sits more central and prominent within its surrounding.

CULTURAL CONTEXT

The architecture of the new wing was designed by architecture studio U/Define as a reinterpretation of typical Austrian chalet architecture. 

The local typologies of Bad Hofgastein were examined for spatial characteristics and materiality. The building responds to the local context but radiates unity through its simplicity in use of materials.

In an environment where reinforced concrete is used as the primary building material, the use of Austria's main export product in building materials, cross-laminated timber (CLT), as a structural material and as an interior finish was applied in the project. The interior is given a healthy, serene and warm appearance with the visible wood.

The fast implementation due to the prefabricated modules limits the nuisance for local residents and holidaymakers to a minimum. The new building stands out in the contrast between old and new, but blends in with the surrounding mountains.

CONSTRUCTION

By using locally produced cross-timber in prefabricated solid wood modules, the new wing could be constructed very quickly, despite the, sometimes, extreme weather conditions. 

The lightness and strength of CLT wood gives it an extremely manageable and robust character compared to other materials. 

DURABILITY

Design for disassembly, flexibility and for longevity were the approaches for this project. 

This project did not require high-tech, but sober and simple solutions. Solutions that remain adaptable and maintenance-friendly in the long run.

The materials used in the project are as pure as possible in their composition as well as robust, renewable and easy to process and use.

The positive CO2 balance in relation to other materials, such as metal or concrete, means that if wood is used as a full-fledged building material, two tonnes of CO2 are recovered from the atmosphere for every m3 of wood used!

By using wood as a primary building material, this hotel takes 2,628 tonnes of CO2 out of the atmosphere compared to traditional building materials. 

For the hotel sector, where sustainability is not at the top of the agenda, this is a leading step towards a more climate-conscious sector.

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Architects
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Project team
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Local Architect.- VandeAlps architecture. Technical engineer.- Boydens engineering. Structural engineer.- Ingenieurbüro Wimmer + Partner.
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Collaborators
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General contractor.- Brandl-RHZ Bau. Interior contractor.- Glocom projects.
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Client
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Area
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9,737 sqm gross surface area.
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Dates
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Start Year Construction.- 2020. Completion Year.- 2021.
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Manufacturers
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Binderholtz.- CLT as structural and finishing material walls and ceil. Marrazzi.- Different tile products for floors and bathrooms. Tarkett.- Different flooring products for rooms and corridors.
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Location
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Bad Hofgastein, Austria.
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Photography
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U/Define was founded in 2014 by architect Wesley Lanckriet. Today, the architectural studio is growing into a thriving international family, passionate about collaborating on bold, social architecture with a fierce and unique visionary approach for each project.

Both partners are part of the academical community. Architect-partner Robby Vandenhouwe teaches BIM and Architectural Design to students in Applied Architecture. BIM has been fully implemented in the daily routine of U/Define since four years.

Wesley Lanckriet is affiliated with the Vrije Universiteit Brussel (VUB) where he is actively engaged in research into change-oriented and future-proof building within a circular economy. Its research is tested in practice in the studio and applied where possible.
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Published on: July 26, 2021
Cite: "Reinterpretation of Austrian architecture. Astoria by U/Define" METALOCUS. Accessed
<https://www.metalocus.es/en/news/reinterpretation-austrian-architecture-astoria-udefine> ISSN 1139-6415
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