Can I get the permission for a rear and side extension?

The rules for permitted development clearly state that the height is to be measured from the highest ground level adjacent to the extension.. the following paragraph is taken directly from the technical guidance: “Height” - references to height (for example, the heights of the eaves on a house extension) is the height measured from ground level. (Note, ground level is the surface of the ground immediately adjacent to the building in question, and would not include any addition laid on top of the ground such as decking. Where ground level is not uniform (for example if the ground is sloping), then the ground level is the highest part of the surface of the ground next to the building.) There are lots of other criteria that need to be met for the extensions to fall within permitted development. And, if it doesn't meet those criteria, it simply means Planning Permission will be required. My advice - engage a competent architectural designer to assist with your extensions. A good one will bring so much more to the project that just navigating the legal planning issues.

You can get side and rear extensions through permitted development. I had the same done. You can go out half the width of the building to either side and 4 - 8 m to the rear. All this depends on the land availablity you have and distance from the boundary. I think you have to keep 2m from the side and think it's the same on the rear boundary. I was also told it's 4m to roof height from the highest point from my architect. So if the ground drops you can go further in height. But also this needs to be done by the architect. Not all architects have a grasp of permitted development. As I learnt from speaking to several different architects as ok was told some different. But Google does help to confirm any doubts. But try and find a knowledgeable architect that is also quick as some just drag jobs that can be done in weeks into months and years.. I found.

You just need to get plans drawn and submitted to your local planning department... unfortunately it’s not a permitted development but that doesn’t mean you won’t get permission... more than likely you will with it being a detached property... hope this helps

Rules for side and rear extension via permitted development on detached bungalow are as follows: Rear extension : max 8m full width rear extension, not higher than 4m, proposed eves should not be higher than existing, proposed to match existing materials. If there is an issue with levels one of the options would be to step down 400-600mm. Levels also can be adjusted to mitigate this issue. Side extension; width should not be more than half width of the original bungalow. Similar rules for height and eves. In case of wrap around a planning permit will be required. Proposed to match existing materials. Loft : no dormer at the front, only roof lights, no part of the proposed roof will be higher than existing, loft will be permitted development if the external volume doesn't exceed 50 cub meters. Proposed to match existing materials. Happy to help..