LightSIM is an established consultancy practice specialising in providing sustainable building solutions.

Our clients benefit from our expertise and professional approach in everything we do.

We are involved from concept stage of design and can analyse building options to determine the optimum building design.

We offer a full range of services from small neighbourly matters to large mixed-use developments.

We provide a professional service to a wide range of clients including architects, developers, and the public sector.


LightSIM is an independent firm of technical specialists.
We are the leading practice in computer modelling and daylight/sunlight simulation.