On a heavy clay soil you may need to install additional drainage such as a soakaway, because the soil will not drain as well as a more sandy soil, making it prone to surface run-off and flooding.
It can look effective but good ground preparation is essential and you will need to select a very tough variety of grass.
Reinforced grass – this is where grass is grown through a plastic honeycomb matrix.
Land-based gravel, rather than pea shingle, is larger sized and may be more appropriate, because it is less inclined to scatter.
Gravel – this is generally one of the cheapest options but can easily scatter and is not great for use on a sloping site.
Things to consider when choosing permeable paving If you have to drop the pavement kerb in order to safely drive out into the road, the local council will have to grant permission and would carry out the work at your expense. This solution looks extremely effective if the tracks are laid into gravel or a dense matt of low planting. The pavers must be suitable for vehicular use, with each track typically 300mm to 600mm in width – the wider the tracks the easier it is to drive on to them. The most effective way to create parking and use the least amount of paving is to lay two tracks into the garden, positioned under the vehicle’s wheels. The sub base must also be of substantial enough depth to support the weight of vehicles. With permeable paving you must ensure that the sub base will also allow water to drain through – this is known as ‘open graded’. In general, planning permission is not required if you intend to use permeable paving, but if you are using impermeable paving then the area concerned must be less than five square metres. You need to find out if there are any restrictions in your area – for example, if you live in conservation zone or a listed property – and if so you will have to apply to your local council for permission. It is possible to create parking and still maintain a front garden, but it requires careful planning.
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