Extending upwards

[Priley26]

hi
This might not be the right place to post but any help or advise would be great
I’m looking for a little advice, we have a 3 bed detached 2 story house we have recently had another baby and need more room. We love the area and really don’t want to move we don’t really have any where either side to extend so the only way is up. the pitch of our roof and head height in the loft isn’t really high enough for a loft conversion but I have read on the internet that from 2020 you can build another floor without planning permission.
so rather then a loft conversion essentially taking the currant roof off building up another level and then putting a new roof on. has anyone had anything like this done or any experience that can just confirm if this is possible

 

[jeds]

It's possible under permitted development but there are rules and restrictions. These are really too many to go into on spec but for a starter your house must not be in a conservation area and must have been built between July 1948 and October 2018. After that there are rules depending on your existing house. Look up statutory instrument 2020 no. 755 for more detail. You are looking for Class AA - enlargement of a dwellinghouse by construction of additional storeys

 

[Nakajo]

1. Is your house a Listed Building and/or in a Conservation Area, AONB, the Broads, a National Park, World Heritage Site, or SSSI?

2. Was it built before 1st July 1948 or after 28th October 2018?

Assuming you clear those hurdles, note that the appearance of the principal elevation (and of any side elevation fronting a highway) still requires the 'prior approval' of the LPA.

It's highly likely that the LPA would consider changes in height, bulk, and design as incongruous, but you could challenge that via the Planning Inspectorate