How much do garden rooms cost? This is the question we are most frequently asked. After all, we all want an idea of how much something might cost before handing over our personal details for a quote. Luckily many garden room suppliers offer a pricing guide for common sizes of building on their websites so that you can get a rough idea of price.
When it comes to buying a garden room the price depends on a number of factors:
- The size of the building
- Whether you choose a modular or bespoke design
- The building system you choose - house quality SIPS or timber frames
- The finishes you choose - cedar cladding and plastered interiors cost more, for instance
- The designer features you pick - bi-fold doors and air conditioning will bump up the price
We have been researching and comparing different sizes of garden room to give you an idea of price. We have created an easy to use calculator, which will quickly give you an indication of price for different size buildings.
Garden Room Price Calculator
To create this calculator, we surveyed our contacts in the industry about their prices. We also scoured supplier websites noting the list price for different sizes and specifications. This data was then crunched in a spreadsheet and the averages found and it's these figures that form the basis of our calculator.
The calculator will give you a guide price. You can use it as the basis for forming your budget.
Bespoke garden room prices
How much are you paying for bespoke garden room designs?
Bespoke garden room designs are normally priced by the square meter of floor space, so if you are looking to build a 4m x 3m garden room, you would be looking at 12sqm.
Prices vary widely for bespoke garden room designs. This is normally due to the core structure used - some bespoke designs use the same materials and techniques as used in modern housebuilding, others use more cost-effective in-house designed timber frames. The designer features you can choose with a bespoke design also have an impact on the price you pay.
You don't often find bespoke prices quoted on suppliers websites, but we asked designers to give us an idea of their price per sqm. As you can see they are wide-ranging:
Bespoke Garden Room Prices
Garden room companies were asked how much they charge per sqm for a bespoke design:
Price Range: £850 to £3,000 per sqm
Average Price Quoted: £1,450 per sqm
Budget for extra costs
In addition to the price, you pay for the actual garden room building you need to have some extra money in your budget for some common extra costs.
If you need to apply for Planning Permission to build your garden room, there will be an application fee to pay of around £170. Normally, your supplier will supply you with drawings as part of the project cost, but we have heard of a small fee being made for the drawings & specification. There can also be extra fees to pay if Building Control approval is sought.
Many garden room companies offer their buildings for sale on a nationwide basis. You do need to read the small print when working with a company that is not local to you, as many will charge a delivery cost beyond a certain radius of their workshops. Typically this is 100 miles. Anything beyond that is typically charged by the mile, prices of £6 per mile are not unusual. So, a delivery charge can soon add up!
The most common extra expense when buying a garden room is engaging a local electrician to connect the garden rooms electrics to the mains supply and then test the circuit. This cost depends on how far your garden room is from the house as an armoured cable needs to be buried underground.
We have had quotes for connecting a garden room sited 25 meters from the house and then testing and certifying the system. These prices came in between £850 & £1,200.
Insurance backed warranties
Most companies offer warranties on their buildings for 'X' number of years. Some companies take this a step further and offer insurance backed warranties, whereby if they were to go out of business any work would still be covered. Like any insurance, there is a premium which normally gets passed on to the customer. The price of your garden room will affect the premium paid.