Areas
Bespoke composite garden rooms built in Henley-on-Thames. Garden offices, annexes, gyms & leisure rooms. Fully insulated, installed in under a week. Free consultation.

Looking for a premium garden room in Henley-on-Thames? Garden Rooms Online designs, builds, and installs bespoke composite garden rooms across Henley and the surrounding area. From our base in Flackwell Heath, we're just 20 minutes away — close enough for a quick site visit and a fast, efficient build.
Henley-on-Thames is a town known for its quality of life — from the famous regatta to its excellent restaurants and riverside setting. Henley homeowners expect the same standard in their garden rooms, and that's exactly what we deliver. Our composite-clad garden rooms are built to last, fully insulated for year-round use, and finished to a standard that complements Henley's mix of period and contemporary properties.
Our signature design named after the town — The Henley features a classic pitched roof that blends beautifully with Henley's period properties. Timber-effect composite cladding gives a traditional appearance while delivering all the benefits of modern composite materials. Popular as a garden annexe or extra living space. Sizes from 4m x 3m to 7m x 5m.
We cover all of Henley-on-Thames (RG9) and nearby areas including Harpsden, Sonning Common, Nettlebed, Shiplake, Remenham, and Fawley. Being based in Flackwell Heath, we're just a short drive across the Berkshire/Oxfordshire border.
Most garden rooms in Henley fall under permitted development. South Oxfordshire District Council generally permits single-storey garden rooms up to 2.5m tall (within 2m of a boundary) covering no more than 50% of the garden. We'll advise on this during your free consultation.