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Building the Cool Street: How Developers Can Design for Shade, Resilience and Root Protection

07 November 2025
David Fisher
David Fisher

Head of Geosynthetics Sales

Green, shaded streets aren’t just a nice visual feature - they’re fast becoming an essential part of sustainable development. In the face of rising temperatures, heavier rainfall and greater demand for healthy urban environments, trees play a critical role in making new neighbourhoods more liveable.

But how do you keep trees alive and thriving while still delivering homes, roads and services on schedule?

Here’s how forward-thinking developers are building "cool streets" that work - for people, for the environment, and for planning compliance.

Why Cool Streets Matter

We know from research and recent buyer surveys that mature trees offer a whole range of benefits:

  • Reduced surface temperatures
  • Improved air and water quality
  • Natural stormwater attenuation
  • Enhanced biodiversity
  • Higher perceived value of streets and homes

However, without the right protection, tree roots can be severely damaged during construction, resulting in early decline, increased long-term maintenance costs, or even complete loss. That’s where the right ground preparation and product choices make all the difference.

Below are three practical ways to protect trees on site.

Trees growing in the park
Option 1

Reinforce, Don’t Compromise: Use Load-Spreading Systems

Installing ProtectaWeb below roads, driveways and footpaths allows you to build hard surfaces over sensitive root zones without compacting the soil. This cellular confinement system distributes loads evenly, reducing pressure on the roots and maintaining the natural structure of the soil.

It’s ideal for:

  • Access routes through Root Protection Areas (RPAs)
  • Driveways and parking areas near retained trees
  • Retrofitting around existing trees in urban infill sites

It’s compliant with BS 5837 guidance and supports planning applications where root-sensitive design is required.

Trees planted in local park

Keep Roots Breathing: Use Nonwoven Geotextiles for Separation

Where soil stability and filtration are needed, nonwoven geotextiles provide an effective barrier that maintains permeability while preventing soil mixing or fine migration. This helps roots access water and air, while supporting surface layers above.

They’re especially useful in:

  • Tree pit build-ups within permeable paving systems
  • Paths and verges adjacent to existing trees
  • Areas where SuDS and soft landscaping meet

They also reduce maintenance issues by keeping surfaces structurally sound over time.

Houses with trees being grown

Integrate Trees into SuDS Design

Trees don’t have to sit outside your drainage plan - they can be part of it.

Tree pits with permeable surfacing, rain gardens and green verges can all serve as bioretention features, supporting both root health and water management. And because products like ProtectaWeb® are permeable, they’re compatible with SuDS systems, helping you meet multiple objectives with a single solution.

Aligning root protection with SuDS principles also supports CIRIA guidance (The SuDS Manual) and makes schemes more attractive to local authorities and LLFAs.

Build Trust with Buyers and Planners

Our research indicates that buyers are more likely to notice when trees are lost or poorly integrated into a development. By contrast, visibly healthy, well-protected trees build trust—and help deliver on the environmental promises many developers are now making.

Planning officers, too, are under growing pressure to assess climate resilience and biodiversity net gain. Demonstrating a root-sensitive, SuDS-friendly approach to tree integration helps show that a development is truly future-ready.

Housing development with trees and The Root Cause campaign graphic

The Root Cause

Through The Root Cause, we want to start a conversation across the industry about the hidden but critical role of tree root protection. By highlighting buyer expectations alongside practical solutions, our aim is to support new build developers in creating schemes that deliver for both people and the planet.

ProtectaWeb is just one part of this, but it is a vital tool for ensuring that the trees which give character, beauty and biodiversity to our communities are safeguarded for generations to come.

Related case study

ProtectaWeb™ keeps Wicklow property refurbishment on track

During a residential property refurbishment in Wicklow, more than 200m² of ProtectaWeb™ was installed to create a new access road while safeguarding 200-year-old trees. Working with Clonlough Contractors, the system reduced pressure on soils and roots, ensuring a reinforced surface without compromising the site’s natural heritage.

Clonlough Contractors
Read more
Related case study

The Kinema in the Woods

The Kinema in the Woods is a cinema in the village of Woodhall Spa, Lincolnshire, England. Dating back to 1922, this beautiful woodland setting is a protected conservation area.  We were invited to assist with creating a new access road and car park in the sensitive area in which the cinema is located and which is surrounded by hundreds of trees protected by Tree Preservation Orders (TPOs).

Woodhall Spa
Read more

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