

Core CPD Framework:
- Climate Change and Environmental Planning
- 5 CPD Hours
Event Description
RTPI South West welcomes to you their CPD Seminar series for 2025. This is a HYBRID Seminar so you may opt to attend in-person or virtually. We hope this enables the event to be as inclusive as possible.
Biodiversity Net Gain (BNG) has been a huge topic for the last year or so with lots of training and info sessions focusing on the ‘big picture’ including legislation and principles. This session focuses entirely on BNG on small sites. While major developments have more opportunities to achieve BNG on-site or have capacity in their budgets to purchase off site credits, small sites are not usually afforded that luxury and therefore BNG presents some unique challenges to these sites.
The day aims to equip participants with the practical and detailed knowledge needed to understand how to achieve BNG on small sites and will provide a legal update, a panel discussion on key issues plus case studies and workshop sessions.
Learning Objectives
- Find out about updates and clarifications in relation to Biodiversity Net Gain and its implementation through the Development Management process with a specific focus on small sites
- Understand the key principles and challenges of achieving BNG on small sites
- Learn about how other small sites have dealt with BNG, the challenges they have faced and how they were overcome
- Understand what a Biodiversity Net Gain Plan looks like, what it should contain and how it would be monitored
Programme
- BNG recap - where are we now
Lauren Weller, Senior Ecologist - EMEA/ Compliance Lead at AiDASH - Legal update
Nina Pindham, Cornerstone Barristers - Credits and Linear credits
Lloyd Collins at The Environment Bank - Case studies
- Rebecca Burvill, BNG Advisor at Wessex Water
Stephanie Massie, Senior Environment and Planning Adviser at Wessex Water -
Battery Energy Storage Systems (BESS) sites and BNG
Sites are often maximised to make as much use of the available space as possible, which can make achieving an onsite biodiversity net gain difficult. Taking a battery storage scheme as an example, Sarah will look at the challenges faced when trying to achieve onsite BNG with very little available space. In the process, she will reflect on how the landscape team worked with the ecologists and lessons learned during the project.
Sarah Curnow, Stephenson Halliday - TBC
Frances Summers, BCP Council
Julie Allington, BCP Council
- Rebecca Burvill, BNG Advisor at Wessex Water
- Workshops:
- Completing the Small Sites BNG Metric
A workshop focussing on undertaking metric calculations for a development and its direct impacts on habitats, as well as providing insight on utilising the Small Sites Biodiversity Metric to support designs of Biodiversity Net Gain.
Tom Whitlock, Principal Ecologist at Devon County Council -
Biodiversity Gain Plans
Will Dommett, District Ecologist at East Devon District Council
- Completing the Small Sites BNG Metric
- Panel discussions with a focus on small sites
Speakers

Dawn de Vries
RTPI SW Chair & Service Manager at Somerset Council

Dawn de Vries
RTPI SW Chair & Service Manager at Somerset Council
I am the Service Manger covering Development Management, Strategic Sites and Enforcement at Somerset Council. I started active involvement in the region in 2016 by approaching Charlotte Daborn at a CPD event and asking ‘so what is it that the committee do?’ and have been part of the group since. I was RTPI SW Chair in 2020 which included a full year of CPD planning, two events, COVID and the evolution of virtual! This year I hope for a more active year championing wellbeing, working collaboration and growth as if you are standing still in planning you are already behind! I look forward to meeting members throughout the year and understanding how these themes guide our practice.
I started my career as a Modern Apprentice for the Isle of Wight Council which reinforces my underlining support for the range of apprenticeships available, including in Town and County Planning. Gaining my Masters in Spatial Planning via day release at Oxford Brookes, and becoming RTPI accredited, my family and I moved to the 'mainland', to Somerset in 2015, progressing from a Senior to Principal role at Sedgemoor District Council (SDC). I gained a CMI Level 5 Diploma in Management and Leadership in 2018 and was promoted to Service Manager at the SDC prior to its merger with the adjoining Districts and County to become the new ‘Somerset Council’ in April 2023. Despite promising never to study again I completed my Level 7 Extended Diploma in Strategic Management and Leadership qualification in 2023 and became a Chartered Manager.
Through my involvement with the RTPI SW Regional Activities I have promoted Planning Aid; organised and delivered CPD events for volunteers and members; worked with Plymouth University determining awareness and outreach opportunities and have been part of the judging panel for the Planning Awards. This year I am really looking forward to judging the Chairs ‘Unsung Hero’ award! 2025 will see collaboration through the events (with one co-joined with the South east), more involvement in the RTPI SW Planning Awards and the Presidents visit. In my spare time I also manage to enjoy exploring with family, my dog Topper and being put in my place by my cats Twinkle and Carbonel.

Lauren Weller
Senior Ecologist, AiDash

Lauren Weller
Senior Ecologist, AiDash
With a career spanning Africa, Canada, the Middle East, and the UK, she brings global expertise in environmental law and compliance to her role at BNG.AI by Aidash. Here, she pioneers the application of artificial intelligence to geospatial data for Biodiversity Net Gain across the UK. Her background encompasses water resource analysis, environmental management for mining projects, and international consulting. Now based in Devon and drawing inspiration from Dartmoor walks, she combines worldwide experience with local insight. Her work focuses on the intersection of technology and ecology, with particular interest in soil health and sustainable agriculture.

Nina Pindham
Cornerstone Barristers

Nina Pindham
Cornerstone Barristers
Nina Pindham has a wide-ranging planning practice specialising in environmental law matters in the context of planning applications, including infrastructure, energy, controversial minerals development, hazardous substances consent, waste, EIA, SEA, agriculture, water, air quality, and nature conservation issues. She has represented clients before the High Court, Court of Appeal, Supreme Court and the United Nations both for and against Government and public bodies. She has been appointed to the Attorney General’s C Panel of counsel.
She is ranked as a leading junior in Environmental Law by the Legal 500 (“a rising star”), one of the country’s top-rated juniors by Planning Magazine (2023), and a leading junior by Chambers and Partners. Comments include: “her ability to crack intellectually challenging issues is unbelievable. If you think of it as chess, she is always three or four moves ahead of the opposition”, “has a tremendous capacity to take in a great deal of information and get straight to the point”, “an incredible advocate”. Nina has also featured as one of The Planner’s Women of Influence (2022) and in the inaugural ENDS Power List of the most influential environmental professionals: “she is one of, if not the, leader in her field”.
In 2022 Nina was part of the legal team that challenged the government over its Net Zero Strategy which the High Court, in a historic ruling, deemed as “unlawful”, and led the government to revise its climate strategy to show how key emission reductions will be met.
At COP27 Nina was awarded the Global Leadership Award in Climate Law for her work with an international coalition of bar associations seeking to build the capacity of the legal sector in relation to climate change where it is relevant to legal advice, so as to best serve the needs of lawyers’ clients.
Find out more:Nina Pindham | Cornerstone Barristers

Lloyd Collins MPlan AIEMA MRTPI
Director – Planning and Delivery - Environment Bank

Lloyd Collins MPlan AIEMA MRTPI
Director – Planning and Delivery - Environment Bank
Lloyd works within Environment Bank’s Planning and Delivery Team (a cross-disciplinary team of ecological, planning, technical, geospatial, and legal BNG specialists) as a Principal Planner. Lloyd works closely with Environment Bank's developer clients and the wider team to guide land and planning directors and their consultants through the often high-stakes BNG aspects of the planning process. Lloyd has many years of experience in the private sector and spent several years leading projects for a range of retail, mixed-use, leisure and hospitality, residential, and commercial clients across England and Wales.

Tom Whitlock
Principal Ecologist for Devon County Council

Tom Whitlock
Principal Ecologist for Devon County Council
Principal Ecologist for Devon County Council with a strategic overview of Biodiversity Net Gain for Local Planning Authorities in Devon. I provide ecological and biodiversity net gain advice on a wide range of planning matters and related enquiries to partner organisations, developers, ecology consultancies and other interested parties, in accordance with appropriate professional standards and best practice.

Frances Summers
BCP Council

Frances Summers
BCP Council
I am a Chartered Town Planner with nine years of experience in policy, lecturing and development management. My time lecturing in Urban Planning and mentoring students through their dissertations created a passion for research, leading to a national study on BNG enforcement and best practices for PPAs with the Planning Advisory Service. At BCP Council, I focus on large-scale projects and have written a comprehensive How-To Guide for officers on BNG.
Booking
If you wish to do a group booking please contact [email protected]
RTPI are happy to support RTPI Members and Students who are unemployed or financially precluded from attending local CPD events. Please contact us to discuss opportunities.
Accessibility
- There is limited parking available on site and chargeable. Other public car parks nearby including Northernhay Car Park
- The nearest train station is Exeter Central which is opposite the venue
- The meeting and catering takes place on the ground floor. One workshop is on the first floor, a lift is available.
- A quiet room is available during the event should you require this.
The RTPI is committed to delivering inclusive events; to make sure that everyone can have the best possible experience. To help work towards being able to do this an event organiser will contact all booked participants to discuss any access needs or requirements that they might have. Contact Charlotte Daborn to discuss any questions or concerns you may have.
Speakers needed
If you would like to speak at this or other events, please do get in touch.
Sponsorship opportunities
RTPI South West have a range of sponsorship opportunities for a number of events in the year, so please do get in touch to discuss. As well as supporting events which raise the profile of planning, they are a great way of aligning to your organisation values and goals.