Both have their advantages and disadvantages.
Pitched roof wrap around extension.
A monopitch roof can be used to fall toward the existing eaves and they can also help increase the area of glazing.
A rear extension is where only the end of the property is extended.
This is then able to vault up to the pitched roof.
If you want to achieve an open plan kitchen dining area family room in your home then a wrap around extension is the best option for you.
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When deciding to do a single storey extension you will need to choose between a pitched roof or a flat roof.
Feb 27 2018 the pitched hip roof extension is probably the most typical type of extension to a property where the space incorporates a side return or side access and across the rear.
Extensions with a monopitch roof or designs that fall towards the existing eaves can also work well.
The wrap around extension can provide maximum space and dramatically alter the feeling and shape of your home.
This is a side return extension combined with a rear extension.
A flat roof can cover an area of any size but is not usually considered acceptable for a two storey extension unless part of an overall contemporary design scheme of significant architectural merit.
The shape is looked at favourably by the council due to its potential to have a reduced side wall height.
A shallow pitched roof can cover a large extension without being too tall but this is not always acceptable especially on a period building or in a sensitive location such as a conservation area.
A monopitch ideally will sit independently of your existing roof.
Large side rear extension.
There are two roofing options for this type of extension either a flat or a pitched roof.
Single storey extension roof options.
The most expensive is a wrap around extension which is essentially a combination of rear and side return extension and these builds start at 55k.