An extension or addition to your house is considered to be permitted development, not requiring an application for planning permission, subject to the following limits and conditions: … Extensions of more than one storey must not extend beyond the rear wall of the original house* by more than three metres..
Extension. Adding square footage is pretty much guaranteed to boost value, whether it’s adding a kitchen or dining area with a single-storey extension, which usually doesn’t require planning permission, or a double extension for extra bedrooms.
How long does it take to build an extension? For a relatively simple, three metre, single rear extension, construction time should be around two to three months. For a larger or double height rear extension it may be more like 5-6 months
Everything should be as simple as it is, but not simpler as you
If you’re wanting to fit a completely new kitchen, including appliances, research shows you can expect to pay £8,000 on average and in doing so could add around 6 percent to the value of your home (around £13,000 on an average-priced property).
Source: UK Virgin Money.
A dormer loft extension will cost upwards of £25,000. However the average dormer loft conversion with a double bedroom and en suite costs about £35,000–£45,000.
The average cost per m2 for an extension outside of London is between £1,000-£1,500. In London and the South East, the average cost per m2 is around £1,500-£2,500+. For two-storey extensions, add 50% to the cost of a single-storey extension. If you want to add a bathroom or kitchen, add £5,000-£10,000
The national average cost to remodel a bathroom ranges from £7,500 to £10,000 depending on the size and extent of the project. The cost to remodel a bathroomvaries greatly. Factors like the current state of the space, the specific bathroom remodel design plans and material costs can all impact the overall price
How much do interior painters cost? Nationally, the average cost to paint a room ranges from £200 to £500. Of course, this cost varies depending on the size of the room in square feet, materials used, and detail work needed