Garden rooms are a great way to add an extra element of functionality to your outdoor area, offering a space that you can use all year round, no matter the weather.
There is a whole host of uses for a garden room, from an at-home gym and hobby room, to a garden bar or just simply a place to relax. The possibilities are endless, and a garden room can really help to maximise space and in a way that’s fun and unique.
How much do garden rooms cost?
Most garden room suppliers will offer a rough pricing guide for common sizes of building, but there are many things to consider, and your particular garden may require a bespoke garden room due to its size or access.
Here are some of the different factors that will determine the overall cost of a garden room:
- The size of the garden room you want to create
- Whether you choose a modular or bespoke design
- The materials you use to build your garden room
- The design features you choose, such as doors and windows
- The interior of your garden room, for example, plastering and cladding
- Whether you need electrics or plumbing
- Whether you want a pathway created from your home to your garden room
How big can a garden room be?
When building a garden room, you must meet certain rules and regulations. You mustn’t cover more than 50% of your garden with buildings. And, to be covered within your Permitted Development rights, your outbuilding must:
- Be single storey
- Have a maximum eaves height of 2.5 metres
- Have a maximum overall height of three metres (or four metres on a dual pitched roof to the highest point)
- Have no verandas, balconies or raised platforms
Find a local garden room builder
Off the shelf vs. bespoke garden rooms
|Type of garden room||Average cost|
|Modular garden room||per m2||£750 - £1500|
|Bespoke garden room||per m2||from £745|
When choosing the type of garden room you want, you have the option of an off the shelf modular solution, or something bespoke that is created specifically for your outdoor area.
Garden rooms are naturally quicker to build than an extension for example, as they’re detached from your home. The type of garden room that will suit you best will depend on what you want to use it for.
Garden room options
If you’re choosing to create a small garden room for a space to work or to enjoy your hobbies, you may find a modular garden room is perfectly suited. However, if you’re creating something unique, such as a garden man cave or children’s garden room, you might want to look into bespoke options that allow you to really tailor the building to your needs. Here are some average cost guides for popular garden rooms.
Cost for a garden man cave
|Type of garden man cave||Unit||Range low - high||Average cost|
|Low shed with insulation power||per project||£1,000 - £1,500||£1,250|
|Medium log cabin||per project||£5,000 - £6,000||£5,500|
|Large higher-spec log cabin / Custom brick-built cabin||per project||£15,000 - £30,000||£22,500|
Read our article here on how to make a garden man cave.
Cost for a children’s garden den
|Type of garden room||Unit||Average cost/Range low to high|
|Children's garden room||Playhouse||per project||£430 - £1,300|
|Wicker teepee||per project||£200|
|Labour to assemble -two people||per day||£360|
|Raised platform project||Stable decking base||per project||£150 - £200|
|Elevated softwood deck with railing/stairs||per project||£2,200|
|Children's shed - flat-packed||per item||£140 - £300|
|Shed assembly||per day||£180|
Read our article here on how to make a children’s den.
Cost for a small garden room
|Type of small garden room||Unit||Average cost|
|Larch cladding insulated office - not assembled||per item||£720|
|Basic small insulated office - assembled||per project||£3,200|
|Home office pod - not assembled||per item||£3,600|
Read our article here on how to maximise your small garden.
Cost for an office garden room
|Type of garden office/feature||Unit||Average cost/Range low to high|
|Mini garden office delivered for self-assembly||per item||£2,650|
|Assembly labour - two people||2 -3 days||£690|
|Deck base||per item||£520|
|Green sedum roof - fitted||per project||£605|
|Roof and floor insulation||per project||£630|
|Electrical packages||per day||£180 - £250|
|Factory painted doors/windows||per item||£261|
|Factory pre-treatment and paint finish to walls||per item||£288|
|On-site clear pre-treatment ready for paint/stain finish||per project||£154|
Now that you have a rough idea of what costs to expect, use our Checkatrade Search to find a trusted professional in your local area who can provide you with a specific quote for the type of garden room you want to create.
Also in this project
Tell us what you think
What others think of this cost guide:
Need More Information?