New Housing Threatens Biodiversity: 300,000 Units Planned by 2030

Ireland's plan for 300,000 new housing units by 2030 (50,000 annually) under the Government’s housing strategy poses a significant threat to local biodiversity, which is already under extreme stress. While new developments often clear existing habitats, biodiversity thrives in old, untidy, and neglected areas like derelict sites, old farm buildings, and mature hedgerows, which support hundreds of native species.

The planning system often overlooks biodiversity in smaller developments, as comprehensive environmental impact reports are only required for large-scale projects. This allows many projects to proceed without standard ecological assessments. The 4th National Biodiversity Action Plan (2023-2030) aims to integrate nature conservation into all State departments' policies, requiring greater weight for non-designated habitats during planning.

However, a new report by the Irish Green Building Council (IGBC) reveals that most developments still bypass adequate assessment, and even when measures are submitted, they are often not implemented during construction or long-term management. This leads to unimaginative planting and poor management of public green spaces, further degrading biodiversity.

The IGBC recommends a “nature-led developments” approach, prioritizing biodiversity enhancement from the outset. This involves recognizing existing site conditions, implementing mitigation (avoid, minimize, restore, compensate), and ensuring long-term management. Northern Ireland's requirement for a biodiversity checklist for developers is cited as a model to follow.