Surrey · RH6
Retaining Walls in Horley
A retaining wall is a structural wall built to hold back soil or a change in ground level, most often to create a level garden area, terrace a slope, or prevent erosion near a boundary or driveway.
In Horley, that covers Massetts, Lonsdale, Smallfield, Horley Row, Westvale Park. Horley sits close to Gatwick Airport, with a historic village core and substantial 20th-century residential development around it, making it a popular area for family homeowners looking to extend rather than move.
Coverage
Areas we cover in Horley for retaining walls
Property styles in Horley
The older village centre includes period cottages and Victorian houses, while the wider town has significant interwar and postwar estate housing well suited to standard rear extensions and loft conversions.
Planning considerations
Reigate & Banstead Borough Council is the local planning authority. Properties close to Gatwick Airport may be subject to airport safeguarding consultation requirements for certain types of development, which we check where relevant.
How it works
Our retaining walls process
- 01
Site survey
Assessing the height and length of ground to be retained, soil type, drainage and access for machinery.
- 02
Design
Sizing the wall, foundation and any reinforcement for the height and loading involved — engineer-designed for taller or loaded walls.
- 03
Foundations and drainage
Excavating and casting a suitable foundation, and installing land drainage and weep holes behind the wall.
- 04
Wall construction and backfill
Building the wall in the agreed material, then backfilling in stages with appropriate drainage material.
Also in this area
Other services we provide in Horley
Nearby coverage
Retaining Walls in nearby areas
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FAQs
Retaining Walls in Horley: FAQs
Do you provide retaining walls across all of Horley?
Yes, we cover the RH6 postcode area in full, including Massetts, Lonsdale, Smallfield, Horley Row, Westvale Park.
Do I need planning permission for a retaining wall?
Most garden retaining walls fall under permitted development, but taller walls, those near a public highway, or in a conservation area, may need planning permission or Building Regulations consideration — we confirm the position for your specific site during survey.
Does a retaining wall need its own foundation and drainage?
Yes. A retaining wall needs a foundation sized for the height and loading involved, plus drainage behind the wall (such as land drain and weep holes) to relieve water pressure — without this, walls are prone to bulging or failing over time.
Does living near Gatwick Airport affect planning permission in Horley?
Some development types near the airport are subject to safeguarding consultation with the airport operator as part of the planning process. This does not apply to all projects, and we advise on the specific position for your address.
Get a quote for retaining walls in Horley
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Last reviewed 2026-07-28.