Extensions - when Is planning permission required and when not?

[Denisec4502]

We have had an offer accepted on a house we like and have just received a copy of the HIPS report. The property has a 10 x 10ft extension to the rear, which did not appear to be proper bricks it seemed like brick cladding on the exterior as it was hollow when touched. Looking at the HIPS it says "planning permission not required when checked with local council". Perhaps this is because it is timber framed with brick exterior cladding? Does anybody know, thought this may have still needed planning permission? Thanks

[woofgang]

It tends to be the size of the structure that decides whether or not PP is required.
http://www.planningpo...kcommonextensionreal/

[AlBags]

.. and also what type of use it is going to put to.

[LCDMAN]

Regardless of needing planning permission (under a certain size comes under "permitted development" - Google it) it will have required Building Regulation Approval and you should have a Completion Certificate from the Local Authority Building Control (LABC) Dept. to confirm it complied with the Building Regs in force at the time of construction.

[buildersmate]

Yes, as LCDMAN says, without a certificate from Building Control, it is nothing more than a non-habitable shed attached to the house. So the value of the house should reflect that - don't include any value for the shed. Indeed if the original outer wall of the house has been knocked through into this 'shed', its likely to be a positive liability. It is unlikely to be constructed to adequate thermal standards, which will make the adjoining rooms cold in winter.
You should look very carefully at how the HIPS worked out the thermal values associated with this 'shed'.