How much does a conservatory cost?
Conservatory cost depends on style, size and glazing. Get an indicative supply-and-fit figure below.
What affects conservatory cost
- 1Style and size
Lean-to is cheapest; Victorian/Edwardian mid-range; orangery-style with solid elements the most.
- 2Roof and glazing
A glass or solid (warm) roof costs more than polycarbonate but makes the room usable year-round — worth it for value.
- 3Regulations
Many conservatories are exempt from building regs and often permitted development, but size, glazing and heating separation matter — check locally.
A conservatory can add light and space cheaply relative to an extension — but only if it's a room you'd actually sit in year-round. The roof is the deciding factor: a warm glass or solid roof makes it an asset; polycarbonate makes it a liability at survey.
Conservatory costs by style (indicative)
| Style | Description | Indicative cost |
|---|---|---|
| Lean-to | Simple, budget-friendly | £8,000 – £16,000 |
| Victorian / Edwardian | Classic, mid-range | £12,000 – £25,000 |
| Orangery-style | Solid elements, premium | £20,000 – £40,000 |
| Base / groundworks | included in above | — |
Includes base and glazing. A proper roof (not polycarbonate), heating and building regs where applicable add cost.
Frequently asked questions
How much does a conservatory cost?+
A lean-to conservatory typically costs £8,000–£16,000; a Victorian/Edwardian style £12,000–£25,000; an orangery-style build £20,000–£40,000, including the base and glazing.
Does a conservatory add value?+
A well-built conservatory with a proper roof can add usable space and value; a cheap, cold polycarbonate lean-to that's unusable half the year can actually put buyers off. Spec it to be a real room, not a greenhouse.
Related tools & guides
Want to know how these figures are calculated? See our cost methodology.
Cost figures shown are indicative estimates, not quotations. You are responsible for verifying all costs (obtain contractor quotes) and any figures submitted to a lender. ScopeWise is a documentation tool, not financial, tax, structural or planning advice. HMO compliance prompts are guidance only — confirm requirements with your local council, as standards and licensing vary by authority.