Expert Advice

A garden room bedroom loses permitted development and the building regs exemption. The Class 6 wording, the annexe line and the 10-year enforcement risk.

Garden rooms London buyers can actually build: six companies covering the capital, the 2.5m boundary height limit, and the Article 4 trap that removes it.

Green Retreats vs Booths compared on guarantee, insulation and cladding: a 25-year steel shell against a 12-year timber frame, and the boundary rule.

Eden Garden Rooms review: published guide prices from £23,500 to £49,500 with VAT, cedar cladding and plastered walls as standard, and a 10-year warranty.

A Booths Garden Studios review of the published spec: 75mm steel panels, no timber, feet instead of a slab, and a 25-year guarantee that does not transfer.

An independent Green Retreats review: the published U-values, the 12-year structural guarantee, the payment schedule, and what Companies House shows.

Garden screens can be 2m tall, or 1m next to a road, and trellis on top counts. The permitted development rules, high hedge law and what lasts.

A golf simulator garden room needs 2.74m of ceiling. Permitted development gives 2.5m near a boundary. Here is the height maths and three ways round it.

Garden room electrics are a new circuit, so Part P makes them notifiable. And from 15 October 2026 only BS 7671 Amendment 4 certificates count.

The best garden room companies in the UK compared on what you can verify: how long each has traded, and structural guarantees running from 10 to 25 years.