New Government legislation for front garden paving
From 1st October 2008 the permitted developement rights that allow householders
to pave their front gardens for hard standings without planning permission has
changed. Planning permission is now required to lay traditional impermeable driveways
that allow uncontrolled runoff of rainwater from the front gardens onto the road
because this can contribute to flooding and polution of watercourses If a new
driveway or parking area is constructed using permeable surfaces such as permeable
block paving, porous asphalt or gravel
or if the water is able to soak into the ground via soil borders or a soakaway
you will not require planning permission These new planning rules also apply
to where existing hardstanding are being replaced and apply to hard surfaces exceeding
5 square metres in area Applying for planning permission will require you
to fill in an application form, draw plans which have to be to scale and pay a
fee of £ 150. Planning applications for this type of development should
normally be decided within 8 weeks after submisson
The Reason
More and more householders are laying hard surfaces over front gardens to provide
off-road parking. At present there are no restrictions on a householder's ability
to do so. Hard surfaces lead to accelerated run-off of surface water which
can overload sewerage systems in more urban areas. This problem is likely to intensify
as climate change produces more torrential downpours. The Government intends,
therefore, to require that paving installed using permitted development rights
does not make this problem worse. In future paving in front gardens wll
not be permitted development rights unless the surface allows the water to drain
away naturally. This can be achieved in a number of ways - most simply by
ensuring that water runs off to an unpaved area such as a garden border.
SUDS - Sustainable Urban Drainage SystemsWhen considering covering
a larger area with paving, or blocks, dealing with rainfall is a serious consideration.
During a typical storm, vast amounts of water can fall onto the large area of
a car park or driveway, and this has to go somewhere. The worst thing you can
do is to create a water trap, where huge lakes are created whenever there is a
downpour!
Problems of water management are worsened when you have to
cover an area which has slopes and low points. These are the natural places for
water to head, and they will get silted up and damaged very quickly unless something
is done to prevent the water running to these points in the first place.
The modern solution to covering a large area, is to use permeable paving.
This consists of small brick or concrete sections closely set together, but not
actually physically connected together. These can be laid out in an attractive
pattern, for example marking parking places and roadways with different colours.
However the secret to a permeable paving area is the way that rain water is handled.
Permeable paving blocks are
often laid upon oil separation layers in car parks. This is in turn placed on
a permeable aggregate layer, which allows water to disperse in the area where
it falls. There is no need to add in a complicated sewerage system in many cases.
For really large areas, a simple piping system is added so that excess water can
be removed and dealt with, but this is simple to do on all land areas because
of the simple way that the permeable blocks are laid.
Frost damage is
unlikely because water is dealt with so efficiently, and because there is an amount
of movement between blocks. The insulating effect of the blocks also goes a long
way to creating a long lasting covering - much better than a tarmac covering.
For any larger area, you must consult the experts to have your land
assessed. This will ensure that all of the features of your particular land, and
the uses that you will have, are taken into account. However, in the long run,
a permeable block paving area, combined with appropriate SUDS will ensure that
you have a long lasting area which is usable all year round, whatever the weather.
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