Specialism

SUDS

Sustainable and Well-Designed Drainage Strategies

Walsh doesn’t see SUDS as a “bolt on” to drainage design. The Walsh ethos is that a well designed drainage strategy should provide sustainable benefits as well as reducing capital and maintenance costs.  

Our designs are influenced by the principle of “Making Space for Water” and we work with both the Architect and landscape architect to integrate the SUDS seamlessly into the landscape and increase the biodiversity and urban greening factor, thereby providing additional environmental benefits. 

We endeavour to avoid the use of high maintenance underground tanks and promote low maintenance surface level attenuation such as ponds and swales but understand that this is not always feasible and when tanks are required we adopt lean design principles to ensure there is no over provision. 

As one would expect from a practice with innovation as a core value, we are always looking for solutions which add value in a sustainable way and Walsh are also at the forefront of current industry thought leadership. We have sat on CIRIA steering groups providing guidance for blue roofs and take an active role in Thames Water’s Scrutiny Panel. 

SUDS

Some Example Projects

Mixed Use

Harold Hill Family Welcome Centre

Structural scheme designed for future-proof adaptation [...]

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Student Accommodation

Palmerston Court

MMC innovations & Passivhaus standards [...]

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Mixed Use

Orchard Gardens, Elephant Park

Scheme and feasibility designs for flexibility and sustainability [...]

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Healthcare

Tolworth Hospital

Optimising the design approach for a public healthcare facility [...]

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Residential

Meridian Water

Mixed-use development on masterplan site with challenging constraints [...]

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Mixed Use

Cantium Retail Park

Planning support to prove feasibility of inner-city retail park regeneration [...]

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Residential

Willow Walk

Piling solution mitigates groundwater & drainage issues on marshland site [...]

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Mixed Use

Southernwood Retail Park

Supporting a successful first-time planning application [...]

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Build to Rent (BTR & PRS)

Keith House

Delivering sustainable civil & structural planning support to make development viable [...]

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Build to Rent (BTR & PRS)

Coppermaker Square

Maximising value across multiple areas through lean value engineering [...]

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SUDS

Related News, Events & Articles

31 January 2024

Project Milestone: First Residents Move Into Meridian Water

Taking Sustainability Seriously

Sustainability is in our DNA and we have our own ambitious goals to achieve Net Zero as a business and with our designs. With innovative in-house monitoring tools, Walsh clients have seen on average reductions of 10-20% total embodied carbon, with some of our flagship work achieving 60-70% reductions compared with baseline figures.