Cost guide
Garden room costs: what affects the price
There's no fair single price for a garden room, because no two gardens or briefs are the same. What we can do is explain what moves the cost, so you can plan a budget and read a quote with confidence.
Cost drivers
The main things that move the price
| Factor | Why it matters |
|---|---|
| Size | More floor, wall and roof means more materials and labour, though cost doesn't rise in a straight line |
| How it's built | Insulation thickness, frame and cladding choices all change the price |
| Glazing | Large panes, sliding doors and specialist glass cost more than walls |
| Base | Slopes, soft ground and tree roots can call for a more involved base |
| Access | Narrow or long routes in mean more handling of materials |
| Power and data | The further the room from the house, the longer the cable run and trench |
| Inside | Flooring, wall finish, lighting, heating and storage |
| Water | A sink, toilet or shower adds plumbing and drainage |
Budgeting
Setting a sensible budget
Decide which parts matter most to you. For an office it might be insulation and power; for a studio, the glazing. Spending where it counts and keeping the rest simple gets the most from a budget.
Sharing a rough budget on the consultation form is optional, but it helps the design match what you're comfortable spending. Leave a margin for extras such as blinds, furniture or landscaping around the room.
Comparing quotes
How to compare quotes fairly
- Same internal size, not just external
- Insulation in walls, floor and roof
- Type of glass and door locks
- Base type and any groundwork
- Length of power cable and number of sockets
- Electrical certification
- Interior finish and flooring
- Waste removal and making good
- Guarantees and what they cover
- Payment stages
A written quote for your garden should list exactly what it covers.
Next step
Get a written quote for your garden
It starts with a design consultation. There's no obligation.
Questions
Common questions
Why don't you publish prices?
Because ground, access, size and specification vary so much that a headline price would mislead more people than it helped. Your quote is priced for your own garden instead.
Does a garden room add value to a house?
It can make a home more appealing, but value depends on the property, the room and the local market. An estate agent can advise for your home.
Can I spread the cost?
Ask at the consultation how payment is staged and whether any finance options are available.