Conservatories - Porches and Lean-Tos
A porch is often an essential addition to a dwelling, since it may keep out bad weather; be necessary to park all the children’s muddy boots and shoes before they traipse into the house, or have somewhere handy to put the dog when exception is taken to a visitor!
A porch is, in essence, a small conservatory in terms of the way it is built, but slightly different rules apply in terms of planning permission and Building Regulations.
For planning permission purposes a porch is an exempt building unless:
- The ground floor area (measured externally) exceeds 3 square metres.
- Any part would be more than 3 metres above ground level.
- Any part would be within 2 metres of the boundary of the dwelling house and the highway
If any of the above are the case, then planning permission is required. We can make that application for you, should that be necessary.
For Building Regulations, a more liberal situation prevails. Provided that the porch is at ground level where it is sited against the house, and it is less than 30 square metres in area (measured externally) no formal Building Regulations approval is required. This assumes that all glazing and any fixed electrical appliances comply with the relevant sections of the Building Regulations. It also assumes that any access to the dwelling for those with limited mobility remains unaffected by the erection of the porch. The external door between the dwelling and the porch must remain in place to ensure thermal efficiency, and the roof may be of glazed or solid construction, or a combination of the two.
A FENSA approved contractor will not have to apply for Building Regulations approval to install your doors and windows, since they have delegated authority to carry out their work unsupervised by the local authority. We are FENSA registered.
Any new electrical work in the porch may be subject to Building Regulations approval, and would require to be carried out by a competent person who can advise on what legislation is applicable and the best way to achieve compliance. We have a qualified electrical contractor who carries out all our work and who can advise and assist as required.
All the information relating to conservatories [link], doors [link] and windows [link] on this web site is equally applicable to porches, subject to the guidelines given above.