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Porch Extension Costs

Porch Extension
Porch Extension

Porch extensions are incredibly appealing for anyone who wants to make life a bit easier for themselves, and even add a bit of kerb appeal.

They’re particularly useful if you’re unlucky enough to live very close to a main road. They provide a bit of visual breathing space when leaving your home and getting ready for the day ahead.

If you’re weighing up the pros and cons of a porch extension, here are some considerations.


The most important first stage of your front porch planning will be figuring out the cost. You may have some very practical limitations when it comes to the size you can realistically achieve.

You may also be slightly constrained by budget. You should also figure out what you want to be able to fit in your porch. You ideally want to leave room for:

  • A table to put your keys and other knickknacks on
  • A chair or stool to make life comfortable when lacing up your shoes
  • Maybe even some room for shoes or a shoe rack

To fit in a few creature comforts, and enough room to grab your coats and bags, the estimated ideal size is a minimum of 1.2 meters up to 3 meters. The minimum size would cost you around £3,500, which equates to just over £1,000 per square metre.

This makes the assumption that you have it made with a concrete floor, a brick bade and double-glazed windows. Cutting down on these costs is never recommended.

Will I need to factor in planning permission?

uPVC Porch

Whether or not you will need planning permission depends entirely on the size of the porch and the nature of the building you are attaching it to. Here are some reasons you might want to factor in the price of planning permission:

  • Your home is a listed building: unfortunately, if your building is listed, then you will absolutely need planning permission from your local council. It’s hard to give an estimate for this, as this will almost certainly vary depending on where you live in the country.
  • Even if you aren’t lucky enough to live in an older, listed building, you may still need if the floor area is larger than three square metres.
  • If the porch is within two metres of a public path or boundary.
  • If the height goes above 3 metres.

These regulations may seem quite tough, but the more you add to the height and width of your porch, the more likely you are to start encroaching on public space, and maybe even view from your neighbours’ homes.

If you are worried about this, then just contact your local council for more information.

The nice aspect of saving up for a porch extension is that, by most extensions’ standards, they’re quite affordable.

They provide warmth and space when you’re getting ready to leave the home, and they may even boost the curb appeal of your home if you live close to a busy road.

Be sure, though, to contact your local council if you live close to a main road and plan to build near to it.