Add 10 for professional fees and vat 76 050.
Pitched roof single storey side extension.
Single storey extension ideas whether your single storey extension is flat roofed or pitched in order to create a living environment which is light and welcoming for friends and family the right rooflights or pitched roof windows can make the world of difference allowing three times as much daylight into a room than vertical windows.
The single storey kitchen and writing room features stainless steel roofing that complements the composite wood and aluminium replacement windows and the stone cladding.
The most obvious advantage of a flat roof single storey extension over a pitched roof is the price tag.
Both have their advantages and disadvantages.
Simon denison a tired 1930s property has been given a new lease of life thanks to a new side extension.
Again london and the south east will more likely be pricier.
Many homeowners when building single storey extensions tend to opt for a flat roof because they are cheaper and quicker to create.
There is less structural engineering involved with a flat roof and materials also tend to be cheaper.
Architect favours a flat roof or a partially flat roof flat on the side adjoining the neighbouring semi then pitched over the non adjoining end of the extension.
Pros of a flat roof extension.
39 000 50 58 500.
Unlike in the 70 s and 80 s flat roofs are actually now considered to be stylish and are great for contemporary buildings.
When deciding to do a single storey extension you will need to choose between a pitched roof or a flat roof.
Fit some space on the side the owners of this victorian ground and first floor apartment managed to build some extra space at the side of their double storey extension by adding a pitched roof section to the ground floor which finishes below the roof level of the adjacent building.
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.
If the extension is within 2m of the boundary eaves height should not exceed 3m.
The current permitted development regime allows single storey side extensions up to a maximum of 4m high and a width no more than half that of the original house.
That s because creating one involves less materials labour and time.
Metal roof on single storey extension image credit.
What about two story extensions then.
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.