About Chris.twinn
Buildings environmental engineer specialising in zero carbon and retrofit.
Engineer Chris Twinn set up his own specialist practice 10 years ago after 28 years at Arup, latterly as Arup Fellow and director. He delivered his first zero carbon development more than 25 years ago and brings a wealth of experience in practical design, construction, and policy, from years working around the world. Chris is an EDGE think-tank core member, LETI member, Sustainable Development Foundation board member, Net Zero Carbon Buildings Standard Governance Board member, Honorary Fellow of the RIBA, a CIBSE Fellow and on CIBSE publication and special interest groups.
Chris led the LETI workstream publishing the new guide on “Retrofit at scale: how Many, how Deep, at what Cost” https://tinyurl.com/4xv4hszh
Featured articles and news
Building Control Independent Panel final report
A precis of a key report lead by Dame Hackitt with full recomendations and link to the government response.
Guide to ISO 19650 for Architecture Firms (2026)
A user gives their low down.
A UK training and membership provider for mould remediation professionals.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
Independent NSI and BAFE study exploring how organisations are changing the way they buy fire safety services.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.
Setting Expectations on Competence Management
Industry Competence Committee.
New Scottish and Welsh governments
CIOB stresses importance of construction after new parliament elections.
The sad story of Derby Hippodrome
An historic building left to decay.
ECA, JIB and JTL back Fabian Society call to invest in skills for a stronger built environment workforce.