Why build a conservatory?
60% of all conservatories built require planning permission. Different local authorities have different rules and regulations so always contact your local planning office for advice. As a starting point, however, there are some general rules of thumb: Detached or semi-detached houses can be extended by up to 70 cubic metres or 115% of the house’s total volume, whichever is greater. This, however, includes any previous extensions. Similar provisions apply to terraced or end of terrace houses but the limit is reduced to 50 cubic metres. Planning permission is unlikely to be granted if the conservatory covers more than half of the garden. Likewise, conservatories should not normally be 20m or less from the road or public footpath. If your conservatory juts out from the house by more than 3m, planning permission is likely to be denied on the grounds that it will affect your neighbours’ enjoyment of their property. Similar rules apply to conservatories built within 2m of the boundary if the
