Flood Risk Assessment and Sequential Test for a Redevelopment Scheme in Elmbridge - Case Study

Ambiental were approached to provide support with Flood Risk and Sequential Test works for a small redevelopment scheme in Elmbridge. The development consisted of the demolition of a garage and construction of a new, end of terrace, residential dwelling.

Elmbridge is a Borough with a significant flood context. The River Thames form Elmbridge’s Northern boundary, with the Rivers Wey, Mole, and Rythe running through it. There are also areas of the Borough at risk from surface water flooding.

The Elmbridge Strategic Flood Risk Assessment (SFRA) suggests that over 12,500 properties are at risk of flooding

The client had received a favourable pre-app response. However, it did identify a number of flood risk related issues associated with the site being located within an area of Flood Zone 2 and in close proximity to Flood Zone 3.

Our design plans and mitigation measures were accepted by the client and they incorporated them into their planning application.

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