About this event

Join Good Homes Alliance for a ‘bitesize’ webinar on Biodiversity Net Gain and the implications of the new policy requirement for local authorities, developers and wider industry.

Biodiversity Net Gain (BNG) is:

“An approach to development, and/or land management, that aims to leave the natural environment in a measurably better state than it was beforehand.”

A national mandatory BNG requirement came into effect from 12 February 2024, requiring new developments to demonstrate and deliver an uplift of at least 10% biodiversity net gain.

Biodiversity Net Gain is a complex and emerging topic. Organisations such as UKGBC have developed a suite of resources including definitions, factsheets, case studies and checklists to help upskill industry.

GHA local authority members such as Somerset Council have developed a non-technical summary guide to inform developers in their region, whilst Cornwall Council has required a minimum 10% BNG requirement for all major planning applications since 2020. Whereas a minimum 20% biodiversity net gain is proposed in the Greater Cambridge Local Plan.

Join us at this one-hour webinar to find out more about BNG and the steps you can take to implement BNG policies and deliver improved biodiversity on housing developments.

Key details

Date: Wednesday 1st May 2024

Time: 15:00-16:00

Location: Online (Zoom)


  • Free-to-attend for GHA members (incl. members of Building Performance Network and GHA’s Vanguard, Pathfinder and Net Zero Developer Networks)
  • £10+VAT for non-members


Kai is a sustainability professional with expertise in nature, resilience, and circular economy. Kai is now Head of Nature at UK Green Building Council fostering systems-level change through cross-sector collaboration. He is championing a regenerative, nature-positive built environment by addressing the industry’s biodiversity impacts. He is working with industry professionals in order to minimise resource use by supporting the built environment to shift from our current linear economy to a circular economy. In addition to this, Kai’s work promotes urban nature-based solutions and their multiple benefits.


15:00 Welcome to the webinar – Julian Brooks, Programmes Director, Good Homes Alliance

15:05 Introduction to Biodiversity Net Gain (BNG) and UKGBC resources – Kai Liebetanz, Head of Nature, UKGBC

  • What is Biodiversity and Environmental Net Gain and why is it important?
  • How does BNG fit in with the wider nature and carbon agendas?
  • What is the BNG legislation and how does it affect local authorities and developers?
  • On-site/off-site BNG, offsetting and ‘additionality’
  • BNG case studies
  • Resources and further learning

15:30 Local authority BNG policy case studies with input from Vanguard Network members

15:40 Q&A

16:00 Close

Note to GHA Network (Vanguard Network, Pathfinder Network, Net Zero Developer Network) members: This Bitesize Webinar takes place as part of a 2-hour joint GHA Networks Meeting on 1st May 2024, running from 14:00-16:00. For further information, please contact larry@goodhomes.org.uk.

About the GHA Bitesize Webinar Series

Our ‘bitesize’ webinars are short 45-60 minute knowledge-sharing events, with guest speakers from the Good Homes Alliance (GHA) and Building Performance Network (BPN) membership networks, and wider industry.

Sessions feature 1 or 2 speakers giving a technical presentation for 30 minutes, followed by discussion and Q&A. The focus is on practical case studies and top tips/lessons learned.

Previous speakers include innovators and industry leaders from across the built environment sector including Bioregional, Herschel Infrared, Carnego Systems, Airflow, Inkling and Apex Acoustics.

Upcoming and previous Bitesize webinars:

Sponsorship: We are looking for like-minded organisations to sponsor our Bitesize events. If you are interested in supporting us, please contact larry@goodhomes.org.uk.

GHA Bitesize Webinar – Biodiversity Net Gain

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