Guides · 5 min read

How to Choose the Right Garden Room Size

From a 3 × 2.5 m office to a 7 × 4 m pavilion: how to size a studio for the way you'll use it, your garden and the rules.

By Zen Garden Studios ·

Kinhin studio with a wraparound roof canopy, corner glazing and a bar opening onto a terrace
Concept image

Too small and the room feels cramped; too big and it can dominate the garden. Here's how to find the right size.

Furnish it on paper first

Mark out your furniture or equipment and add space to move. A single desk and chair works in about 3 × 2.5 m. A desk plus a sofa or meeting table needs 4 × 3 m or more. A gym with a rack and cardio kit is happier at 5 × 4 m.

Keep the garden in balance

Leave room for paths, planting and somewhere to sit outside. A studio that sits comfortably in its setting always looks more expensive.

Know the thresholds

Size affects the rules. As a general guide in England, detached outbuildings under 15 m² internal floor area with no sleeping accommodation are usually exempt from building regulations. Between 15 and 30 m² they usually need to be at least 1 m from a boundary or built substantially of non-combustible materials to stay exempt. Above 30 m² approval is normally needed. Height near boundaries is limited for permitted development too.

See it to scale

Our estimator draws your chosen footprint to scale beside a parking bay, which helps more than any number. Better still, peg it out in the garden with string.

When you're ready, tell us about your space and we'll help you decide.

Ready to talk about your studio?

Tell us a little about your garden and what you'd like to create. We'll come back to you with ideas, guidance and an indicative budget.