Planning a Garden Room in 2026?
Avoid Costly Mistakes Before You Start.
Download our free 2026 Garden Room Guide — including real pricing, planning rules, and a £250 subscriber discount.
Includes transparent starting prices from £13,950.
What’s inside the guide:
✔ Planning permission & Permitted Development — explained simply
✔ Foundations & base requirements
✔ What “Turn Key” really means
✔ SIP vs Timber Frame — insulation, longevity & price
✔ CFM ranges & real starting prices
✔ Real projects & next steps
🎁 £250 discount code for subscribers
About CFM
We’re Cotswold Furniture Makers — a small, family run business building high spec, all season garden rooms using SIPs (Structural Insulated Panels) for exceptional insulation and longevity.
Every project is finished with premium materials such as Western Red Cedar cladding, aluminium glazing, herringbone flooring and screwless sockets — the details that make it feel like a room in your house, not a shed at the end of the garden.
We live locally, build locally, and run the business from our own garden room showroom — built six years ago and used every day.
If you like the idea of a warm, fully finished space that feels like a room in your house (not a shed), we think you’ll find this guide helpful.
No pressure. No annoying sales calls.
Just the information you actually need — before anyone gives you the hard sell.