NDM Heath Ltd. is an independent consultancy providing sustainable energy services to a wide range of clients.

Our aim is to provide a realistic service and help create sustainable buildings that work. We do this by understanding their context, fabric, use and design targets, and responding to technical complexities with simple, robust, coherent strategies.

Director Profile

Nicholas Heath MA MSc is a Certified Passivhaus Consultant and Retrofit Coordinator. He is Founding Director of NDM Heath Ltd, which he established in 2013 after more than ten years in the existing buildings sector. Nicholas has a wealth of experience in the challenges of achieving meaningful building upgrades that address environmental, economic and social agendas. In particular, he has a special expertise in the challenges and solutions for traditional and historic building stock.

Nicholas is the author of numerous traditional building retrofit guides, technical papers, planning guidance and research reports, and has extensive experience of technical training development and delivery. He has worked on a number of significant domestic and non-domestic buildings, and led several award-winning retrofit projects which have led to changes in local planning policy and are regarded internationally as examples of best practice in low-energy building retrofit.

Nicholas has led high-profile research into solid wall insulation on traditional buildings, and has worked with several local authorities and social housing providers to develop city-wide strategies for the responsible retrofit of traditional buildings. He has worked nationally and internationally with a wide range of public and private clients including the Scottish Government, Historic England, Historic Environment Scotland, UNESCO, EST, CITB, RIBA, RICS, STBA, SPAB and the UKCMB, as well as numerous architect firms, local authorities and housing associations, universities and community groups. He also sits on Government-level and technical working groups for sustainable retrofit.

Nicholas is Associate Director of the Sustainable Traditional Buildings Alliance (STBA), Affiliate of the Institute of Historic Building Conservation (IHBC), Fellow of the former Centre of Refurbishment Excellence (CoRE), Member of the Association for Environment Conscious Building (AECB) and Steering Group member of the Green Register. He is also a visiting lecturer at UCL and the University of York, where he designed and delivers a core module of their highly-regarded Architectural Conservation MCs course.

In addition, Nicholas is a licenced PHPP and SAP Assessor, providing both new-build and existing building energy assessments and upgrade strategies for the public and private sectors.

  • "This is an enormously complicated area and Nicholas covered a huge volume of information with the perfect amount of focus. Hard to fault. I feel motived and keen to explore further"

    Training delegate,
  • "I reached out to Nicholas to prepare a retrofit strategy for a conversion and extension of an historic cottage. I cannot express strongly enough the value of...ensuring that a considered retrofit strategy with appropriate energy modelling is in place before you commence design. Nicholas delivered the report in a highly collaborative and effective manner... Nicholas' technical and specification knowledge across the UK is outstanding backed up by well-documented case studies. I would not hesitate to recommend Nicholas to others and I will certainly enjoy the opportunity work with him again"

    Private client,
  • "Nick produced a detailed report that covered environmental factors, historical context, retrofit options and the underlying science behind these options that allowed me to select a solution that balanced my aspirations and my budget.  The conservation officer stated that she was impressed with the documents and felt that they demonstrated a well thought out conservation-minded approach. Nick has continued to advise through implementation"

    Private client,
  • "I thought that Nick was one of the best presenters I have ever encountered - as far as I could see, he held everyone's attention all day"

    Training delegate,
  • "Huge amount of info skilfully delivered. Masterclass of content and presentation"

    Training Delegate,
  • "The report produced by NDM Heath Ltd was very in depth and the resulting recommendations provided alternative solutions to alleviate condensation, damp and mould on a large housing estate affecting 36 blocks... The Council have further commissioned NDM Heath Ltd to monitor the effectiveness of the works from inception to completion"

    Michael Balfour, Southwark Council
  • "Nicholas is client focused, meticulous and an excellent communicator with an ability to concisely and clearly present technical issues to a wide range of audiences."

    Stuart Hay, Changeworks
  • "Nicholas Heath has an enormous amount of knowledge and experience in the field of retrofitting historic buildings, and his work demonstrates an in-depth understanding of the complexities surrounding this subject"

    Lucy Pedler, The Green Register

Affiliations & Memberships


· UK Government Each Home Counts Implementation Working Group member, Fabric & Technology

· UK Centre for Moisture in Buildings (UKCMB) Technical Working Group member, Retrofit

· Sustainable Traditional Buildings Alliance (STBA) Associate Director

· Certified Passivhaus Consultant

· Qualified Retrofit Coordinator

· Stroma accredited SAP Assessor

· Association for Environment Conscious Building (AECB) Member

· Institute of Historic Building Conservation (IHBC) Affiliate

· Former Centre of Refurbishment Excellence (CoRE) Fellow

· Green Register Steering Group member