Passive & Low-carbon Design

Passive & Low-carbon Design

With increasingly stringent carbon reduction targets, regulations and policies, alongside rises in energy prices and concerns over energy security, clients are looking for robust energy strategies that really do deliver low-energy and low-carbon performance in practice.

Achieving passive and low-carbon design

To achieve the aims of  low-energy and low-carbon performance, new-build and retrofit strategies need to consider the hierarchy of energy efficiency, low-carbon energy supply and renewable energy generation.

Our sustainability and energy specialists are experienced in working with architects, contractors, and end use clients to optimise building design solutions including consideration of passive and low carbon design options for heating, cooling, lighting and auxiliary power.


We apply our knowledge of building physics to identify design solutions that maximise the benefits of solar gain and natural ventilation, whilst minimising the risk of overheating. We can undertake both desk-based feasibility studies, as well as detailed computational modelling to assess the operational energy impacts of design decisions during the initial concept and detailed design stages of a project.

Examples of our passive and low-carbon design services:

  • Low-energy/carbon strategies for planning.

  • Natural ventilation strategies including design of window/vent openings.

  • Façade optimisation for thermal performance.

  • Design solutions to maximise benefits of the site (orientation, shading, prevailing winds, design for solar gain etc).

  • Overheating assessment and mitigation strategies.

  • Low-energy lighting options studies including financial and carbon assessment.

  • Daylight design and modelling.

  • Low-carbon heating and cooling strategies.