What to Consider Before You Invest in a Garden Room
If you’re running out of space at home, you’re not alone — especially with more young adults staying at home well into their twenties and beyond. While an extension might seem like the obvious fix, it’s not always possible.
A garden room could be a smart alternative. These aren’t just your standard sheds — they’re often fully insulated, powered, and even fitted with a loo or kitchenette, giving you proper year-round living space. But before you start planning your garden escape, there are a few things worth thinking about.
Do You Need Planning Permission?
Always check with your local council before starting any work. Whether you need permission will depend on the size, height, location, and use of the garden room — especially if you’re in a conservation area. Don’t just rely on what a builder or supplier tells you.
If you’re replacing an existing outbuilding, you might still need to apply for a change of use. Best to double-check than risk issues later.
Be Realistic About the Costs
Garden rooms vary massively in price, and it’s easy to underestimate the cost once you factor in essentials like:
- Proper insulation and damp-proofing
- Ventilation (sheds get hot!)
- Electrics and water
- Fire safety measures
If it’s not warm and dry, your teenager (or your desk) will be straight back in the house as soon as winter hits.
Don’t Forget About Security
Outbuildings can be a target for burglars, so make sure the doors and windows have proper locks. Motion-sensor lights and even CCTV could be worth adding for extra peace of mind.
Other Things to Keep in Mind
If someone’s living in the space full-time, council tax might apply.
You’ll need to keep the structure well maintained over time.
Will It Add Value to Your Home?
In most cases, yes — providing it’s well built and has the right approvals in place. Done properly, a garden room could add anything from 5% to 15% to your property’s value.*
It’s a real selling point for buyers who work from home or need extra space for teens or guests. If you’re thinking about selling in the future, we’ll be happy to advise on how best to present and market it.
