The role of Habitat Management and Monitoring Plan (HMMP)
In a post-Biodiversity Net Gain (BNG) world, the role of a Habitat Management and Monitoring Plan (HMMP) is more crucial than ever for developers and planning consultants. The HMMP, however, is not a new concept. It has long been required by local authorities, often as part of a Section 106 agreement or planning condition under a Section 106 agreement. This plan ensures the management and monitoring of habitats during and after development, with requirements typically ranging from 12 months to 5 years, depending on the site and the local planning authority’s policies.
What’s changing now, under the Environment Act 2021, is the increased emphasis on biodiversity and the long-term sustainability of development projects. BNG mandates that developers not only prevent harm but actively enhance biodiversity, ensuring a net gain of at least 10% in most cases. As part of this shift, the HMMP now often includes a dedicated section or appendix focusing on on-site biodiversity, which must be monitored and maintained for a minimum of 30 years.
For off-site biodiversity enhancements, such as purchasing biodiversity units, a separate HMMP is typically required. The BNG provider will include this as part of the package, ensuring the long-term ecological value of the purchased units.
While this update expands the scope of the HMMP, it is more of an evolution than a revolution. Developers and consultants who have previously worked with these plans are well-positioned to adapt to the new requirements, as BNG simply adds a more structured focus on enhancing and sustaining biodiversity over time.