Richard Allitt Associates Ltd


Richard Allitt Associates Ltd is an SME providing specialist consulting engineering services in urban drainage, flooding and hydraulic modelling. Founded in 1996, the Company operates nationally with offices in both the Midlands and Sussex. As a small consultancy we like to think we are highly responsive and cost effective whilst also offering a high quality specialised service.


We provide services to a wide range of clients including Water and Sewerage Companies, the Environment Agency, Scottish Environmental Protection Agency, Developers and many Local Authorities across the UK. We have strong links with academia and undertake many Research and Development Projects. We also act for many clients on expert witness cases.


Our core skills include advanced computer modelling of the hydraulic behaviour of sewer networks, SuDS drainage systems, watercourses and flooding in the Urban Environment. Design of SuDS systems for new developments is a key activity and hydraulic modelling of these enables Clients and adopting organisations to fully understand how they operate.


Richard Allitt Associates has made considerable investment in computer hardware, industry leading software and the training of hydraulic modellers. We are in a unique position and lead the engineering profession in being able to model all possible flooding mechanisms in urban areas. For the first time this enables engineers to fully understand how flooding occurs and then devise suitable mitigation measures which frequently include retro-fitting SuDS.


For organisations that need high quality urban drainage advice, Richard Allitt Associates has the breadth and depth of knowledge and technical expertise to help.

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