A loft conversion is a great way to gain extra living space and add value

A loft conversion is the most cost-effective way to gain extra living space and you should be able to do it if your home was built before 1975 and/or the loft has a maximum headroom of 2.3m.

Work costs from around £20,000 and takes about six to 12 weeks. Creating a double bedroom with en suite is the most popular option and Nationwide Building Society estimates it could add 21% to the value of your home.

Remember, take professional advice before you start because the loft conversion must meet building and fire regulations.