GHA Bitesize Webinar Series – HEAR THIS! The implications of acoustics for compliance with Part F and Part O

The first event in our Bitesize Webinar series.


Webinar: Overheating risk tool for retrofit – Beta launch

About the tool

The new tool responds to demand from designers, housing associations, environmental health officers, and other parties concerned with overheating risks in the existing housing stock, which are likely to increase further due to climate change and higher temperatures.

This tool is intended for use at the early stages of residential retrofit projects, or on existing homes, in order to identify key factors contributing to overheating risk and possible mitigation measures. It is applicable to existing homes, retrofits, and conversions of non-domestic buildings to residential accommodation.

The tool and guidance are meant to be easy to use by non-specialists to inform early-stage big impact decisions. They promote holistic consideration of overheating risk together with the site context and linked design issues such as ventilation and noise. The potential impacts of energy efficiency measures through retrofit are included, but the tool also highlights the important opportunities for retrofit to contribute not only to overheating risk mitigation, but also improvements in air quality and energy efficiency.

This launch is a beta version, and the team will look to produce a revised version in early Autumn 2022. Please get in touch if you would like to provide feedback or trial this version on a project and inform the revision.

Watch the launch

Download the tool and guidance



Send download link to:

By providing your email and receiving the download link, you agree to join our mailing list and be contacted by Good Homes Alliance to gather feedback on the beta version of the tool. You can unsubscribe at any time. View privacy policy.

Authors and supporters

The work has been led by Julie Godefroy of Julie Godefroy Sustainability, with support from Susie Diamond of Inkling LLP.

The project has been co-funded by the National Energy Foundation, and the BEIS funded REFINE project on radical decarbonisation of social housing through whole house energy retrofits.

The REFINE project is one of the Social Housing Decarbonisation Fund Demonstrators led by Warwick District Council and Oxford Brookes University with Enhabit/QODA Consulting and Sarah Wigglesworth Architects.

We would like to thank the following steering group members for their input during the project:

  • Hayley Chivers, Sarah Wigglesworth Architects
  • Paul Ciniglio, National Energy Foundation
  • Prof. Rajat Gupta, Oxford Brookes University
  • Dr Sarah Price, QODA Consulting
  • Katharine Ray, Warwick District Council
  • Sarah Wigglesworth, Sarah Wigglesworth Architects
  • Tim Wilcockson, QODA Consulting

More information

For more information about the Overheating in Retrofit and Existing Homes tool, please contact Julie Godefroy – or Susie Diamond –

For more information about the Good Homes Alliance, please contact Julian Brooks, Programmes Director –, 0330 355 6274.


Pathfinder Network meeting #4

The fourth meeting of the Pathfinder Network of Housing Associations. This is available to Pathfinder members only.


Committee Report – 21/03619/REM – Castle (Land Between Huntingdon Road and Histon Road, Cambridge)

Committee report regarding a proposal in Cambridge of over 100 units. 

Deemed of interest to the Vanguard group that includes a new planning condition on futureproofing homes for air source heat pumps.  Condition 14 on page 63 of the report. 


Sustainable city regions: How can we enable zero carbon living at scale?

Urgent action to create sustainable city regions is essential to support sustainable, zero-carbon living and to tackle the climate and ecological emergency. Using inspirational case studies from leading city regions from around the world, this session will enable policy makers, community groups and development professionals to learn from City leaders who have helped to create exemplar built-environment projects, explaining:

  • How city and region-wide initiatives can be used to create clean energy, and to help people use resources sustainably
  • How barriers to creating a zero-carbon built environment, in development and operation, can be overcome,
  • How community engagement can be enhanced to create sustainable cities and regions that work for everyone,
  • How regional government, communities, and the built environment sector can work together to unlock sustainable living at scale,
  • How to deliver a zero-carbon region in practice.

Click HERE to watch the event recording


  • Sue Riddlestone OBE, CEO, Bioregional
  • Lynne Sullivan OBE, Chair, Good Homes Alliance
  • Brad Pettitt, Member of the Legislative Council of West Australia
  • Bill Cotton, Strategic Director, Environment and Place, Oxfordshire County Council and Cherwell District Council
  • Mayor Eckart Würzner, Honorary Professor at the SRH Hochschule Heidelberg, Sustainable City-Planning and Smart City’s

Click HERE to watch the event recording


Mayor of London Delivering Quality Homes Handbook draft

“Every Londoner should have access to a well-designed, safe, good quality home they can afford. This should be a right, not the preserve of the rich. Yet, too many Londoners continue to face inadequate housing options. COVID-19 has shone a fresh light on housing inequalities across the country, including in our capital city. The impact of this health crisis has been worsened by the existing housing crisis, with many confined to unsuitable accommodation.”


Author: Greater London Authority 

Publication date: November 2021


Oxford-Cambridge arc case study video as part of event ‘Sustainable city-regions – how can we enable zero-carbon living at scale?’

On November 4th 2021 Good Homes Alliance, alongside Bioregional and the Passivhaus Trust, hosted an event as part of the COP26 Built Environment Virtual Pavilion titled ‘Sustainable city-regions – how can we enable zero-carbon living at scale?’.

The below video is a short set of case studies from GHA members profiling the Oxford-Cambridge region. It featured as part of the wider event to generate debate on enabling zero-carbon living at scale, with the following objectives:

  • To present inspirational case studies that provide solutions to a target audience of developers, policymakers, planners, and architects.
  • To demonstrate how different approaches have delivered sustainability at scale for communities, cities, and regions across the world.
  • To focus on energy issues, but also draw together a range of macro issues across a progressive sustainable built environment.

The video features:

  • Hannah Scott, Bioregional
  • Emma Davies, Greater Cambridge Shared Planning
  • Tom Dollard, Pollard Thomas Edwards

The full event will be available on-demand in the near future.


Good Homes Alliance – 2021 AGM

Our Annual General Meeting was held online on Wednesday 27th October, 10:00-11:30 as we reflected on another vital year of climate action and look ahead to 2022.


Climate Emergency Retrofit Guide

LETI’s Climate Emergency Retrofit Guide shows how we can retrofit our homes to make them fit for the future and support the UK’s Net Zero targets.  We define energy use targets for existing homes and provide practical guidance on how to achieve them.  

The guide is useful for architects, engineers, Local Authorities, social landlords, energy professionals, contractors and clients looking for guidance about best practice retrofit.

It is widely accepted that retrofitting our existing buildings is absolutely critical if we are to achieve Net Zero.  Around 18% of our annual national CO2e emissions come from existing homes – homes that will still be standing in 2050. 80% of 2050’s homes have already been built.  It is also widely acknowledged that the retrofit challenge is monumental.  Over one million homes every year for the next 30 years will need to be retrofitted.  We cannot afford to retrofit them twice.  But if we retrofit them well, we can enjoy many environmental, social and economic benefits.

This guide sets out what good retrofit looks like for existing homes.   We target energy consumption reductions of 60-80% for the average UK home.  This is achievable through a whole house approach upgrading the building fabric, incorporating energy efficiency measures, improving ventilation and fitting heat pumps. These targets have been determined through practical experience and understanding of what measures are realistically achievable.  They are also informed by a national housing stock model to examine issues such as renewable energy provision and grid capacity. The guide also points out the potential risks of poor retrofit and advises on how to deliver efficient, resilient and healthy homes. 


Quick start guide

The guide provides a quickstart guide to retrofit as well as typical house archetype examples for four primary housing types: semi-detached, detached, mid-terrace and a flat.  Click on the pages below for the quickstart guide and typical house archetype examples.

Author: LETI

Publication date: October 2021


Good Homes 2021 Build Net Zero Now conference series – Net Zero Housing Action + Case Study Launch

The second session for our 2021 Build Net Zero Now conference series.