Single Storey Flat Roof Extension Construction

Generally most single storey extensions would have foundations adequate to accomodate an additional floor however this is all dependant on the age of the cottage.

Single storey flat roof extension construction.

If both storeys are the same size a generally accepted rule is to add 50 extra to the build cost of a single storey extension. A felted flat roof is a common and easy choice and would be recommended if you are looking to carry out a simple extension and do not mind re roofing it in 10 15 years. While the bulk of outgoings will go on building materials and features approximately 10 or 15 of your budget is likely to spent on professional fees such as an architect and building regulations. With expanses of glazing it can also provide you with the opportunity to create a light filled space that s integrally linked with the garden.

Extensions can t be higher than the original roof. Otherwise the limit is 3m. The single storey kitchen and writing room features stainless steel roofing that complements the composite wood and aluminium replacement windows and the stone cladding. You can t build extensions forward of the main elevation.

Metal roof on single storey extension image credit. Simon denison a tired 1930s property has been given a new lease of life thanks to a new side extension. 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. Many homeowners when building single storey extensions tend to opt for a flat roof because they are cheaper and quicker to create.

All flat roofs make it easy to install roof lights which increases the light internally however have a reduced ceiling height when compared with a pitched roof. Using the build it estimating service we ve priced this 20m2 single storey rear extension at 34 662 including labour plant materials and vat. That s because creating one involves less materials labour and time. What about two story extensions then.

Work cannot be a verandah or balcony. Double storey extensions can t extend by more than 3m from the house or be within 7m of any boundary. Bungalow with balcony another idea is to create a balcony by extending the flat roof of your single story home. It can radically transform the look of your home and alleviate dark spaces replacing them with sun pipes and an abundance of natural light.

Pros of a flat roof extension. Glass roof extensions with glazing technology panes are stronger bigger and more environmentally friendly than before. 39 000 50 58 500. Again london and the south east will more likely be pricier.

Period cottages were generally built on just a slab which would then require underpining and therefore be costly. Add 10 for professional fees and vat 76 050. 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. Single storey extension cost guide.