Major New Sustainable Drainage Scheme set for Tulse Hill

22 November 2024

Written by: Lambeth Council

News and announcements

Lambeth Council has approved a Sustainable Urban Drainage System (SuDS) in Tulse Hill as part of the broader Soak Up Lambeth programme to reduce the risk of surface water flooding across the borough.

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Major New Sustainable Drainage Scheme set for Tulse Hill

The Soak Up Lambeth programme aims to improve drainage using natural processes to reduce the impact of surface water flooding through a series of SuDS schemes for estates, schools, highways, and parks.

The new scheme in Tulse Hill will enhance the space between Brailsford Road and Jubilee Primary School, helping to create a nature corridor through Lambeth.

It incorporates innovative green features, including two large planter beds with permeable surfaces, a state-of-the-art attenuation tank system, new greenery and five additional trees.

Cllr Rezina Chowdhury, Deputy Leader and cabinet member for Sustainable Lambeth and Clean Air, said: “This initiative not only addresses flooding but also transforms hard, neglected surfaces into vibrant green spaces.

“The design prioritises environmental sustainability and community well-being, aligning with the borough’s goals of adapting to climate change and making our neighbourhoods fit for the future.

“The inclusion of community-friendly elements, such as cycle stands and seating, reflects the council’s commitment to creating a sustainable, liveable environment for all residents.”

Surface water flooding is one of Lambeth’s most pressing environmental challenges, with 8,500 properties and £121 million worth of infrastructure considered to be at high risk. A warming climate means more regular and intense periods of rainfall, which can make flash flooding more likely.

This intensifying rainfall, coupled with the borough’s high population density and extensive impermeable ‘grey’ surfaces, has placed immense pressure on an outdated Victorian drainage and sewer system.

Instead of allowing rainwater to rush into our drains and sewer all at once causing them to overload and flood, SuDS are used to mimic the water cycle to give the sewers a chance to cope in heavy rain.

SuDS do this by first collecting rainfall from hard surfaces like roads and roofs into their carved-out ground features. The soil and plants allow the rainwater to soak in to the ground. During really heavy rain the SuDS have a trickle of water going back into the sewer so they do not flood themselves.

These ‘greener’ approaches to flood prevention also improve water quality, air quality, access to green spaces and shading and cooling in the summer.

The Tulse Hill scheme will improve rainwater management, reduce flood risk, and boost biodiversity in the area. It is funded by Lambeth Council’s Capital Investment Programme and a £2.45 million grant from Thames Water Utilities as part of the £6 million SuDS programme approved in 2022.

The Tulse Hill scheme complements work underway on the St Matthews SuDs scheme, where work is progressing rapidly on new water management pools, planting, benches and pathways.

Incorporating SuDS across the borough helps us build neighbourhoods that are fit for the future so that residents can lead healthier, happier lives in a clean, vibrant, climate-resilient Lambeth.

You can read more about all the SuDS schemes planned on the Have Your Say Website.