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Cost GuidesUpdated May 2026By TradeMatch Editorial Team·6 April 2026·Updated 12 April 2026·7 min read
Conservatory Costs UK 2026: Build, Roof Replacement & Orangeries
A conservatory adds living space and value to your home. Here is a complete guide to conservatory costs in the UK in 2026.
Conservatory Build Costs
| Type | Average Cost |
|---|---|
| Lean-to conservatory | £5,000–£12,000 |
| Victorian conservatory | £10,000–£20,000 |
| Edwardian conservatory | £10,000–£18,000 |
| P-shaped conservatory | £15,000–£30,000 |
| Orangery | £20,000–£45,000 |
| Conservatory roof replacement | £3,000–£8,000 |
Prices include foundations, frames, glazing and roof. UPVC frames are cheapest, aluminium mid-range, and timber the most expensive.
Conservatory vs Orangery vs Extension
Conservatory — Mostly glazed walls and roof. Cheapest option. Can be too hot in summer and cold in winter without modern glazing.
Orangery — Brick pillars with a flat perimeter roof and central glass lantern. Better insulation than a conservatory, more premium feel.
Extension — Solid walls and conventional roof. Most expensive but best thermal performance and year-round usability. Usually requires planning permission.
The key factor: conservatory roof replacement (polycarbonate to solid tiles or glass) typically costs £3,000–£8,000 and transforms an existing conservatory into a year-round room.
Frequently Asked Questions
Do conservatories need planning permission?
Most conservatories fall under permitted development and do not need planning permission, provided they meet size limits (no more than 50% of your garden), are not higher than the existing roof, and are at the rear. Check with your local council before starting.
Does a conservatory add value to my home?
A well-built conservatory can add 5–10% to your home value. However, a poorly insulated or dated conservatory can actually deter buyers. Modern conservatories with tiled roofs and underfloor heating add the most value.
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