Garden Room Sizes
A garden room is built to be used like part of the house, as an office, studio or extra living space, and many models are insulated for use all year. Below you will find every garden room size we compare, from 8′ x 10′ insulated garden offices to 12′ x 14′ garden houses, with links to compare prices from leading UK retailers.
Sizes are given in feet and rounded from the metric sizes most garden rooms are sold in. Always check the external dimensions, wall construction and door position on the product page before you plan the space and the base.
Garden room sizes
From compact insulated offices to larger garden houses and lean to conservatories.
- 8′ x 10′ garden rooms
- 10′ x 10′ garden rooms
- 10′ x 14′ garden rooms
- 13′ x 11′ garden rooms
- 11′ x 15′ garden rooms
- 15′ x 11′ garden rooms
- 12′ x 14′ garden rooms
Garden Rooms by brand
How to choose the right garden room size
Insulated or not
If you will work in your garden room every day, choose an insulated model. Insulated panels keep the room comfortable in winter and cool in summer, so check the wall construction on each product page.
Plan for power and data
A garden office needs power, lighting and usually a data connection. Plan the cable route before the base goes in, and use a qualified electrician for the supply.
Lean to or freestanding
Lean to conservatory style rooms fix to the house wall and bring light into an extension of the home. Freestanding garden rooms sit apart from the house, which gives a better separation between home and work.
Check planning and building regulations
Garden rooms are often permitted development, but height limits near boundaries apply and building regulations can come into play for larger rooms or sleeping accommodation. Check with your council before you order.
Garden Room size FAQs
What size garden room do I need for an office?
An 8′ x 10′ room, about 2.5m x 3m, comfortably fits one desk, a chair and storage. For two people or a meeting area, look at 10′ x 10′ and larger.
Are garden rooms warm in winter?
Insulated garden rooms are designed for year round use and stay comfortable with a small heater. Uninsulated rooms and conservatory styles get cold in winter and warm in summer.
Do garden rooms need planning permission?
Many garden rooms are permitted development if they stay within height limits and do not cover more than half the garden. Using a room as living accommodation needs planning permission, so check with your council.
What base does a garden room need?
A concrete slab or a ground screw foundation that is perfectly level. Insulated panel buildings in particular need a square, level base so the panels and doors line up.
Compare other sizes
Comparing options? See summer house sizes and log cabin sizes, or browse all garden rooms.