ClosedConsultation consultationoutcome

Improving the implementation of biodiversity net gain for minor, medium and brownfield development

Applies to England

We This areconsultation analysinghas yourconcluded

Read feedbackthe full outcome

Visit

Biodiversity downloadnet thegain outcome(BNG) toarea-based thisexemption publicevidence feedback.annex

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email defra.helpline@defra.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Detail of feedback receivedoutcome

We received a25,024 largeresponses numberto this consultation. 23,748 of responsesthese towere thiscampaign consultationresponses andreceived areby currentlyemail analysingfrom theWildlife feedback.Trust A(WT) fulland responseRoyal willSociety befor publishedthe inProtection dueof course.Birds (RSPB) campaigns.

AnyDefra changeswill madeintroduce secondary legislation in response2026 to thestart consultationimplementing willthe bechanges communicatedset out in advancethe ofgovernment theirresponse.

The implementation,current withbiodiversity expectednet timescales.gain The current (BNG) requirement remains in place and developers should continue to follow existing guidance and legislation when delivering BNG.BNG.


Original consultation

Summary

We are seeking views on improving the implementation of biodiversity net gain (BNG) for minor, medium and brownfield development.

This consultation was held on another website.

This consultation ran from
to

Consultation description

We want to know what you think about the implementation of biodiversity net gain (BNG) for minor, medium and brownfield development.

BNG is a way of creating and improving natural habitats. BNG makes sure development has a measurably positive impact (‘net gain’) on biodiversity, compared to what was there before development.

This consultation includes options around extending exemptions, simplifying the small sites metric and increasing ease of access to the off-site market. It also addresses specific challenges for brownfield developments.

The government is committed to encouraging economic growth through new development, while also supporting nature recovery. We think amending BNG to more efficiently embed nature-positive approaches within the planning system will help achieve this mission.

We are also consulting separately on BNG for nationally significant infrastructure projects.

Updates to this page

Published 28 May 2025
Last updated 2115 OctoberApril 20252026 + show all updates
  1. Added the summary of responses and government response, and an area-based exemption evidence annex.

  2. We received a large number of responses to this consultation and are currently analysing the feedback. A full response will be published in due course. Any changes made in response to the consultation will be communicated in advance of their implementation, with expected timescales. The current BNG requirement remains in place and developers should continue to follow existing guidance and legislation when delivering BNG.

  3. First published.

Sign up for emails or print this page