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Permeable Resin Surfacing
Surfacing designed to let rainwater pass through into the ground rather than run off it, meeting the sustainable drainage expectations for front gardens.
Why permeability is the point
Paving over front gardens with impermeable surfaces sends rainwater into the street drainage rather than into the ground, and doing it at scale across a neighbourhood contributes to surface water flooding. That is the reasoning behind the rule introduced in England in October 2008 requiring planning permission for more than five square metres of impermeable surfacing between the front of a house and the highway.
A permeable surface avoids that requirement, because the water it receives passes through the surface into the ground beneath rather than running off it. Resin bound is permeable by construction: the voids between the coated stones are the drainage path.
The surface is only half of it
This is the part most often glossed over, and it matters more in South Devon than in most places. A permeable surface only functions if the water passing through it has somewhere to go. Over free-draining ground, such as the sandy soils around Exmouth, an open-graded stone sub-base handles that on its own.
Over heavy clay, which describes much of the Bovey Basin around Newton Abbot and the clay-with-flints around Honiton, water passing through the surface will simply sit in the sub-base unless the construction is designed for it. That can mean greater sub-base depth to store water while it discharges slowly, a designed attenuation layer, or a positive outfall to a soakaway or an approved drainage connection.
The practical consequence is that a permeable installation costs more on clay than on sand, and a quote that prices both the same has not accounted for the ground. Asking an installer specifically how they intend to handle drainage on your ground is the single most useful question you can put to them.
Where the rules sit
The planning position for domestic front gardens in England is as described above: permission is needed for over five square metres of impermeable surfacing between the house frontage and the highway, and a permeable surface, or one draining to a permeable area within the property, falls outside it.
Larger schemes and new developments fall under a wider sustainable drainage framework, and requirements there are set by the local authority as lead local flood authority. Devon County Council holds that role for most of the area, with Plymouth City Council and Torbay Council as unitary authorities for theirs.
This is general guidance to help you ask the right questions, and it is not a compliance guarantee. Anything beyond a straightforward domestic driveway, and anything involving a listed building, a conservation area or a new vehicle crossing over the pavement, deserves a direct conversation with the relevant council before work starts.
Where we cover
Common questions
Is resin bound definitely permeable?
Resin bound is permeable by construction, because the voids between the resin-coated stones form a drainage path through the surface. Resin bonded is not: it is a sealed layer with stone scattered over it. Since the two names differ by one word and are constantly confused, it is worth confirming in writing which one a quote is actually for. If permeability is the reason you are choosing the surface, that distinction is the whole point.
Do I need planning permission for my driveway?
For a permeable surface such as resin bound, usually not. Permission is required in England for laying more than five square metres of impermeable surfacing on land between the front of a house and the highway. Permeable surfaces, and surfaces draining to a permeable area within your own property, fall outside that. Separate rules apply for listed buildings, conservation areas, and any new or widened vehicle access across the pavement, which needs the council’s consent regardless of surface. Check your specific circumstances with your council. This is general guidance and not a compliance guarantee.
Does a permeable driveway stop my property flooding?
No, and it is important to be clear about that. A permeable surface reduces the volume and slows the rate of water leaving your property, which is a genuine contribution to managing surface water at a neighbourhood scale. It does not defend a property against flooding from a river, from the sea, or from surface water arriving off higher ground next door. If flooding is an active concern rather than a general one, that is a question for a drainage engineer and worth asking properly.
Enquire about permeable surfacing
Tell us what is there now and we will explain what it is likely to cost and whether a base like yours can usually be overlaid, then put you in touch with an installer where one covers your area. No charge for that, and no obligation.