Kitchen Extension Planning Permission in York

Some single-storey rear kitchen extensions in York fall under permitted development, but almost the entire city centre inside and immediately around York's medieval walls sits within a conservation area, and a significant number of properties carry listed status on top - both of which commonly remove permitted development rights entirely.

Permitted development limits

Where permitted development does apply - generally further from the historic centre - a single-storey rear extension is commonly allowed up to 3m beyond the rear wall for a terraced or semi-detached house, or 4m for a detached one, without needing planning permission, with the "larger home extension" scheme extending this to 6m/8m via a neighbour consultation process.

Where it gets more complicated

Because such a large share of York sits within a conservation area, permitted development rights for extensions are more commonly restricted here than in most UK cities - it's genuinely worth checking your property's exact status with City of York Council before assuming standard rules apply, rather than the other way around.

Get it confirmed, don't assume it

A Lawful Development Certificate from City of York Council is a formal, low-cost confirmation that protects you if a neighbour complains or you sell the house later - genuinely worth getting given how much of the city falls under extra restrictions. A builder who works regularly in your specific part of York will usually already know your property's status.