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Jakub & Levi
Development of an innovative, climate-neutral neighbourhood within an urban agglomeration

The Jakub & Levi exploratory project is investigating the framework conditions for the development of a climate-neutral neighbourhood within the Unterretzbach municipal area.

ResearchCircular economy

The relevance stems from the projected population growth in the catchment areas of major cities and the need to counteract land sealing caused by conventional detached housing estates. The project aims to methodically combine the qualities of urban neighbourhoods with rural structures in order to ensure the long-term viability of peripheral regions.

A key focus is on implementing a circular construction approach using regional resources and opportunities for reuse. This materials-based approach is intended to reduce CO2 emissions during construction as much as possible. To minimise soil sealing, the structural concept envisages the use of point or screw foundations instead of large-scale sealing.

The social dimension of the project encompasses the design of diverse housing forms, such as transitional accommodation for young people, (communal) living for older people, intergenerational housing or starter homes for new residents. Methodologically, the planning is carried out through co-creative participatory processes and an ‘anchor space’ serving as a testing ground for stakeholder dialogue. The integrative planning approach is based on a broad participatory process to involve regional stakeholders in dialogue with experts in urban neighbourhood development

In terms of infrastructure, the aim is to establish neighbourhood-based energy communities and a multimodal mobility concept. This involves the integration of electric car-sharing, smart charging infrastructure and the optimisation of footpath and cycle path connections.

The aim of the exploratory study is to draw up a practice-oriented catalogue of criteria and transferable planning documents that will serve as a scalable model for local authorities in similar peripheral locations within conurbations. Economic sustainability is ensured through the implementation of sharing models and the aim to reduce life-cycle costs. This economic approach is inextricably linked to the environmental and social objectives, enabling the project to make a holistic contribution to resource-efficient construction, the promotion of social diversity and active climate protection.

Project team

Jutta Wörtl-Gößler  (Lead)
Ulrike Maria Machold
wohnbund:consult eG
IBO – Austrian Institute of Healthy and Ecological Building
Grazer Energieagentur Ges.m.b.H.
Enlion Innovation GmbH
Gemeinde Retzbach
Pfarre Unterretzbach

Research period

March 2026 – August 2027

Funding Institutions

The call for proposals ‘Technologies and Innovations for the Climate-Neutral City’ forms part of the ‘Climate-Neutral City’ FTI priority area of the Federal Ministry for Innovation, Mobility and Infrastructure (BMIMI) and the Climate and Energy Fund (KLIEN). The programme is administered on behalf of the BMIMI and KLIEN by the Austrian Research Promotion Agency (FFG) in collaboration with Austria Wirtschaftsservice Gesellschaft mbH (AWS).

Technologien und Innovationen für die klimaneutrale Stadt
Bundesministerium für Innovation, Mobilität und Infrastruktur
FFG
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