New rules require new-build housing to deliver a 10% biodiversity net gain (BNG) to protect and grow natural habitats. The government introduced these laws in England as part of the Environment Act (2021) to ensure housebuilding doesn’t harm wildlife habitats.
Biodiversity refers to the variety of living organisms in a habitat, including animals, insects, plants, bacteria, and fungi. These laws aim to improve ecosystems across the UK by promoting the growth and protection of these organisms during development projects.
Additional Exemptions and Considerations
Developments granted planning permission by a development order, such as those under permitted development rights, are also exempt. Additionally, sites of 0.2 hectares or less are exempt, provided they do not impact a priority habitat. This exemption is particularly relevant for self-build projects, as most self-build houses fit comfortably on plots of this size or smaller.
For those not exempt, the process involves submitting a detailed plan to the local planning authority, which must be maintained for 30 years after completion. Self-builders are encouraged to explore biodiversity-enhancing measures, such as planting wildlife-friendly flora, creating habitats, and avoiding pesticides, to meet these requirements effectively.
