immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Aufstockung

  • Residential complex to be sustainably renovated and extended

    Residential complex to be sustainably renovated and extended

    The Schlieren-based real estate and construction company Halter is transforming the Clochettes site in the Champel district of Geneva. As part of the project, Halter was commissioned by Baloise to carry out the energy-efficient renovation, conversion and addition of storeys to three residential buildings from the 1970s. According to the press release, a total of 70 existing apartments will be modernized by January 2029 and 15 new apartments will be created by adding two more floors. The work will start in May and will take place while the apartments are occupied.

    As part of the refurbishment, Halter will replace the technical systems and refurbish the façades. Heat recovery and the installation of photovoltaic systems are also planned, according to the project description. The aim is to obtain a Minergie renovation label.

    The architectural design by the Grenier Coretra architecture firm maintains continuity with the existing buildings and harmonizes with the neighbouring residential complex. The new apartments will offer a variety of floor plans and room concepts tailored to modern living.

    New areas for residents and neighborhood-related uses will be created on the first floor of the buildings. The outdoor areas will also be enhanced with wooded areas to promote quality of life and biodiversity.

  • A key to combating the housing shortage in the city of Zurich

    A key to combating the housing shortage in the city of Zurich

    The housing shortage in the city of Zurich is alarming. With a vacancy rate of just 0.06%, there is a massive need for new living space. This is precisely where a non-partisan initiative comes in, calling for the building regulations to be amended so that existing buildings can be extended across the board. This measure could help to quickly create additional living space and counteract the enormous pressure on the Zurich housing market.

    Timber construction as an ideal solution for adding storeys
    Timber construction is particularly suitable for adding storeys due to its low dead weight. Compared to solid building materials, timber allows existing buildings to be extended without putting a significant strain on the structures below. This means that even multi-storey extensions can be realised without the need for extensive structural reinforcements. Wood also scores highly thanks to its outstanding energy properties, which leads to significant savings in heating costs.

    Synergy of space gain and energy efficiency
    Storey extensions not only offer additional living space, but also the opportunity to renovate the entire building envelope and optimise its energy efficiency. This improves the energy efficiency of the entire building, which leads to lower operating costs in the long term. The newly created space, which is generally of high quality and therefore easy to let, helps to amortise the investment in the extension and energy-efficient refurbishment.

    Initiative meets with broad support
    The initiative “More living space by adding storeys – neighbourhood-friendly and sustainable” has already met with broad support. More than 4,000 signatures were submitted before the collection deadline, which emphasises the great interest of the population in this solution. The implementation of this initiative could be an important step towards effectively counteracting the housing shortage in Zurich and at the same time promoting sustainable building practices.

  • Extension to create more living space

    Extension to create more living space

    The densification of Swiss cities should also be realised upwards. This is what the FDP is calling for together with FDP Urban, an initiative of FDP city parties. According to a press release, they propose increasing the permitted building height in all residential zones by one to two storeys. In addition, the maximum permitted height of existing buildings should be increased by at least three metres.

    The increase in height would make it possible to build flats without building over existing green spaces. Areas with protected townscapes or listed buildings are to be excluded.

    The FDP points out that similar proposals have already been implemented in Geneva since 2008. The FDP City of Zurich is currently collecting signatures for its municipal popular initiative “More living space by adding storeys – neighbourhood-friendly and sustainable”. The FDP Switzerland submitted a 6-point plan against the housing shortage in 2023. It also proposed increasing the utilisation rate by adding storeys to buildings, among other things.

  • Competition for construction project in Riedholz is complete

    Competition for construction project in Riedholz is complete

    Halter AG is developing the Attisholz site in the municipality of Riedholz. According to a press release issued by the property developer from Schlieren, the planning law basis for developing the site into a vibrant and sustainable living space over the next 25 years has been created with the land-use plan, which came into force in January 2022. A competition was organised for the warehouse building. This competition has now been concluded.

    The task was to add new storeys to the existing building to create attractive condominiums. In the past, the warehouse was used to store materials for cellulose production on the Attisholz site. During the development of the site, it has been used intensively in recent years as a venue for a variety of events, the report continues.

    According to the landowner Halter, five teams, known as work groups, were invited to develop a proposal for the extensions in collaboration with architectural firms. The process was overseen by an assessment panel consisting of experts in the fields of architecture and urban planning, representatives of the municipality of Riedholz and the Office for Spatial Planning of the Canton of Solothurn, as well as Halter AG.

    The committee unanimously decided to recommend the design and construction of the building envelope by Blumer Lehmann Holzbau in Gossau SG, together with Stücheli Architekten in Zurich, and the supporting structure by Anliker AG in Emmenbrücke LU for further processing.

    The projects for the Attisholz site can be viewed from Thursday 21 March in a public exhibition on the site in the so-called Eindampfanlage.