double jeopardy

[wearnicehats]

this is a tricky one and I just thought I'd throw it out there before I meet with the planner next week

A client has an end terrace and wants to apply for planning for another house on the end. If they get it they may sell with planning. Alternatively they might build the shell with internal temporary modifications to allow them to use it effectively as an extension - is that above board?

As part of the application they will include the demolition of an existing extension to the existing house and re-build the extension as part of the new-build works with a party wall between. Now technically this is below the 40sqm and doesn't need to be part of the application. i think i should leave it off as it would blur their red line boundary, build the new house and lash up the 40sqm exempt extension while they're at it.

What about if they build the new house, move into it and use the old one as an extension???? They've my head wrecked and I don't want to do anything that's going to land them in the soup later

[Archie]

The house can only be extended by 40 sq. metres in total to the rear to have it classed as exepted development providing it has not been previously extended. The 40 sq. metres is an accumilation of permitted and exempted development.

If for example an extension of 80 sq. metres is approved for the side of the house then you will need permission for anything that is going to be built to the rear

[Bren88]

Basicly the new extension is no longer exempt. As it total area of all work. Extending an end terrace is a big job, firestopping and structure are first to mind

[wearnicehats]

The house can only be extended by 40 sq. metres in total to the rear to have it classed as exepted development providing it has not been previously extended. The 40 sq. metres is an accumilation of permitted and exempted development.

If for example an extension of 80 sq. metres is approved for the side of the house then you will need permission for anything that is going to be built to the rear

It's an application for a new house, not an extension. it doesn't effect the existing house as the red line will not include it

[Bren88]

A client has an end terrace and wants to apply for planning for another house on the end. If they get it they may sell with planning. Alternatively they might build the shell with internal temporary modifications to allow them to use it effectively as an extension - is that above board?

The way it is described above, it would be an extension and not a new house.
Out of curiosity, how are you suggesting to convert the existing gable wall into a party wall.

[Archie]

The way it is described above, it would be an extension and not a new house.

Well thats the way I would look at it also

[tommyt]

Most grants of PP for an additional house will contain conditions that the right to unexempted extensions are waived