PDP London has a team of architects specialising in sustainable architecture and energy efficiency called "PDP Green Group"

Marion Baeli is the Partner in charge of the group. She was project architect of PDP London's 100 Princedale Road project, the first Passivhaus certified residential retrofit in the UK - one of the 'Retrofit for Future' programme projects. This led her to author'Residential Retrofit: Twenty Case Studies', an award winning RIBA publication that presents a series of innovative and best practice case studies of residential low energy retrofit projects, and illustrates what has been achieved in practice in the UK.

We offer a wide range of services and skills focused on sustainable architecture such as:

  • - Certified Passivhaus designers - integrated Passivhaus design and PHPP analysis on our own projects
  • - Specialist Environmental Consultancy Services - including energy analysis, daylight and ventilation modelling and embodied carbon analysis
  • - Building Physics Analysis - Psi calculations, heat and moisture analysis
  • - CfSH, BREEAM and LEED - integrated CfSH, BREEAM or LEED scope into our projects when required
  • - Sustainable reviews of all our projects at every RIBA Stage

Policies and Certificates:

  • - ISO 9001:2015
  • - ISO 14001:2015
  • - Environmental Responsibility Report


  • - Passivhaus Trust Patron
  • - Passivhaus Trust Board Member (Marion Baeli)
  • - Contributor to Ecobuild
  • - Contributor to Green Register

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