Answer
Can I build a garden room within 2 metres of my fence?
Yes, but within 2 metres of a boundary it must be no more than 2.5 metres high.
In short
Yes, but if a garden room sits within 2 metres of any boundary it must be no more than 2.5 metres high to stay within permitted development. Further than 2 metres from the boundary it can be up to 3 metres for a flat roof or 4 metres for a dual-pitched roof. Designated land and listed property are tighter, so confirm the position before you build.
A note
General guidance, not advice. Rules vary by site, and Article 4 directions or conditions can change what applies. Check with your local authority and the Planning Portal.
- Source: Planning Portal: outbuildings
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