Orpington: loft conversion with PD volume checks

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The brief

Add a bright bedroom and shower room without a full planning application.

PD question answered

Can a loft conversion be done under permitted development in Orpington?
Often yes, if added roof volume limits are respected and the roofline is not raised.

Constraints

Volume allowance required precise calculation
Maintain existing ridge height
Minimise overlooking to rear neighbours

What we did

Measured existing roof volume and applied PD limits
Designed a low-impact rear dormer
Documented compliance for certainty and resale

Outcome

A compliant loft conversion with minimal delay and strong PD evidence.