Single Storey Extension Roof Construction

When deciding to do a single storey extension you will need to choose between a pitched roof or a flat roof.

Single storey extension roof construction. A basic extension will typically cost you around 1 000 per square metre meaning a 3 x 5 metre single storey extension for example would set you back 15 000. In london and the south east this could be anywhere between 1 800 and 2 300 per m2. Furthermore the main problem with building onto an existing single storey is that the foundations will need strengthening to take into account the extra weight of an additional storey. The project features bifold doors and a roof lantern and could be the perfect choice for creating an open plan kitchen diner or a similar zone.

Simon denison a tired 1930s property has been given a new lease of life thanks to a new side extension. A single storey extension will allow you to transform the downstairs of your house be that by adding an open plan kitchen space utility room or home office and it simply offers a cost effective alternative to moving house altogether. Most opt for a single storey extension as its cheaper quicker less hassle and often no planning permission is even required. Single storey extension cost guide using the build it estimating service we ve priced this 20m2 single storey rear extension at 34 662 including labour plant materials and vat.

Typically a flat roof is cheaper than a pitched roof however while cost is a major factor you will also need to think about design maintenance and energy efficiency. If you re looking to build an extension on a budget you can achieve a single storey extension for around 1 500 to 1 900 m for basic quality a 4m x 5m extension would work out at around 30 000 for good quality expect to pay between 1 900 to 2 200 m or 38 000 for a 4m x 5m addition. Metal roof on single storey extension image credit. The cost of a single storey extension will depend on the scale of your project and where abouts you live in the country.

Typically a single storey extension will cost from around 17 000 whereas the cost of a double storey extension will start from around 30 000 40 000. This is a general extension built on the side of the house as opposed to being situated on top of an existing single storey. Single storey house extension. In 2019 an estimate for the cost of a single storey extension is anywhere between 1 350 and 1 950 per m2.

Both have their advantages and disadvantages.