Handlungskonzept Wohnen 2022 der Stadt Aachen

The “Handlungskonzept Wohnen 2022” is a policy document produced by the Stadt Aachen’s Department of Housing, Social Affairs and Integration. Developed in collaboration with the RWTH Aachen University planning faculty, municipal officials, housing providers, social organisations and citizens, the concept outlines the city’s long‑term vision for sustainable and affordable housing. It integrates scientific expertise and participatory input to guide future development in Aachen and offers insights relevant to a pan‑European audience interested in sustainable urban housing.

Aachen’s housing stock comprises roughly 140 000 existing dwellings, of which 95 % are privately owned. The city faces a projected need for around 10 000 new homes between 2019 and 2035, while the supply of publicly subsidised units is expected to halve by 2030. Population growth, limited developable land (84 ha identified for new construction in the “Aachen*2030” land‑use plan), and rising rents place considerable pressure on the market, especially for low‑income households, students and seniors.

The concept introduces a suite of instruments to address the housing shortage and promote sustainability. These include quota regulations, the “Aachen Model” for municipal housing finance, erbbau (ground‑lease) schemes with reduced interest rates (down to 2 %), and voluntary binding agreements to stabilise rents in the municipal stock. Additional tools target land mobilisation, such as strategic public land acquisition, low‑threshold concept‑based land allocation, and the creation of a city‑owned “roof‑genossenschaft” to support community‑led projects.

Sustainability is embedded through measures such as roof‑top extensions, densification of existing neighbourhoods, and the promotion of mixed‑use developments that reduce commuting distances. Social objectives focus on preserving affordable housing, preventing displacement of vulnerable groups, and fostering inclusive neighbourhoods through participatory planning and integration‑focused initiatives.

• Required new housing (2019‑2035): ~10 000 units
• Existing stock: 140 000 dwellings; 95 % privately owned
• Potential release of 3 480 single‑ and two‑family houses by 2040
• Land‑use plan earmarks 84 ha for new residential development, leaving a shortfall of 94 ha relative to demand forecasts
• Public funding for housing in 2021 amounted to €100 000

The strategy was shaped by a multi‑stage participatory process beginning with a digital public forum in early 2020, followed by expert workshops with RWTH Aachen, stakeholder round‑tables and internal strategy circles within the municipal administration. The final political endorsement was targeted for spring 2022. Ongoing monitoring and evaluation are built into the concept to allow adaptive management and continuous improvement.

The document outlines phased actions across seven thematic fields, ranging from affordable and publicly subsidised housing to regional cross‑border development. Immediate steps involve land mobilisation, activation of private owners, and the rollout of the erbbau‑programme. Medium‑term measures focus on quality‑assurance in the existing stock and the expansion of university‑related housing. Long‑term objectives aim at resilient, climate‑compatible neighbourhoods and the integration of new housing models across the Aachen region and beyond.