Loft conversions

Value for money
Loft conversions are a significant investment and can cost from £20,000 but research shows that in the majority of cases they do add more value to the property than the initial outlay.

Building the shell of a loft conversion can take anything from four weeks to a few months to complete. If you're worried about the weather, try to get the work done in the summer.

Ensure you have alternative space for items currently stored in your loft. It's easy to underestimate how much junk you've accumulated over the years because it's conveniently tucked away in the loft.

Call in the professionals
A project of this size needs reliable contractors, so seek out building firms who specialise in loft conversions and get at least three separate quotes. Many people have difficulty in visualising what the end product will look like so view previous examples of a builder's work. Ask the householder if the builder was reliable and what they would have done differently. When you have decided which builder you prefer, go through their quote carefully. Ensure you know exactly what you will get for your money.

Planning permission
Homeowners planning a loft conversion of less than 50 cubic metres or an extension reaching less than 3 metres from the original property do not need planning permission.

For more information, take a look at Getting Planning Permission and the Government's Planning Portal website.

Your architect or builder will also be able to offer guidance and if in doubt, consult your local council planning department.

Design for living
Try to have a good idea of what your finished room(s) will look like before deciding where the power sockets and light fittings will go. Mark them out on a plan and ensure your builder understands what you want.

Most loft conversions will include new radiators but check with a qualified heating engineer whether your existing boiler will be able to cope with the extra strain on the system.

Hot water feeds to an en-suite bathroom in the loft could need a pump that makes a fair amount of noise. Ensure its location won't cause a nuisance. Smoke detectors will need fitting and doors must be fire-resistant and self-closing. A rooflight is also a must, to provide a means of escape in case of fire.