Illrainhof project - renovation of the historic residential complex 

The Illrainhof at Klarenbrunnstraße 32, built in 1925 as the first workers' housing estate of its kind in Bludenz, is an important architectural testimony to the town's history. The housing estate, affectionately known as the ‘Spritzerbau’, has been closely linked to the development of the town and the Austrian Federal Railways for almost 100 years. The renovation and preservation of the Illrainhof is of particular concern to both ÖBB and the town of Bludenz. The aim of the project is to preserve the historical substance and to make the residential complex future-proof and sustainable in order to secure its significance for future generations.

Architectural features

The buildings are of compact design and are orientated towards the proportions of the surrounding buildings. With recessed loggias that offer more privacy and sun protection than balconies, the buildings open up to the surroundings. The proportions of the individual structures are orientated to the urban environment, but at the same time tailored to the scale of the local conditions and the building site.

Building concept and construction

A hybrid timber-concrete composite system is proposed as the structural concept, which enables economical construction and at the same time characterises contemporary construction. The simple design language of the building structures and a compact basement accelerate the construction process and contribute to the economic construction of the project. Prefabricated ceiling elements speed up the construction process and characterise the appearance of the buildings. At the same time, the choice of materials ensures a high level of sound and thermal insulation, which increases the functionality and efficiency of the project.

Urban identity and flexibility

The buildings act as an interface between the urban development form and the lively structure of the surrounding buildings. The new, dynamic design blends harmoniously into the cityscape. The reinterpretation of this style-defining structure creates a strong identification with the location and its history. The height of the building is staggered towards the city centre, which allows it to be naturally structured and integrated into the urban space.