The Passivhaus design standard is becoming increasingly popular with architects and developers seeking an alternative standard for low energy design. We provide consultancy for new Passivhaus schemes, utilising the Passivhaus Institute (PHI) approved PHPP software. We provide detailed advice on orientation and layout as well as insulation levels, window sizes, and suitable servicing strategies. We will also provide thermal bridging design advice and supporting calculations. Our support will last the lifetime of the project, with provision of ongoing advice on air tightness detailing and impacts of design changes throughout the construction stage. We can also complete the PHPP submission package for certification.