DC3 Conditional Permission - Is architect right?

[Fridge]

I have planning permission for a two storey rear extension to add an en-suite to the master bedroom and push a current bedroom out into the extended footprint.
I have DC3 conditional approval - with one condition saying "The development hereby permitted shall be carried out in accordance with the following approved plans, xxx-xxx-xxx, yyy-yyy"

In further conversation with my architect he has recommended making the en-suite jack n jill which would enable us to turn the current bathroom into a study/bedroom. He says I don't need to go back to planning as they aren't concerned with internal works, only building regs are.

Is he right?
Or do I need to build as per the plans, then once signed off am I able to make internal changes?

Or do I only need to go back to planning if I make changes that would require planning permission (e.g. change roof line or dimensions of footings)

Bit twitchy.

 

[freddiemercurystwin]

Planning is not concerned in any way with the internals of a domestic extension.

 

[^woody^]

Planning is not concerned in any way with the internals of a domestic extension.

Garage conversions and loft conversions are internal

And altering the use of a room from that of an approved plan might concern planners - but would tend to be dealt with by a condition on the approval.

But in the Op's case this type of change wont have any planning implications

 

[freddiemercurystwin]

Garage conversions and loft conversions are internal

And altering the use of a room from that of an approved plan might concern planners - but would tend to be dealt with by a condition on the approval.

Don't be so bloody pedantic, you know, I know, even my bloody cat knows the planners won't give a **** about a poxy bathroom!

 

[^woody^]

Don't be so bloody pedantic, you know, I know, even my bloody cat knows the planners won't give a **** about a poxy bathroom!

Does your cat post here, I'd like to discuss planning policy with him? Is he a bit calmer?