Free Calculator ยท Updated June 2026

Conservatory Cost Calculator UK 2026

Answer 4 quick questions for an instant 2026 UK conservatory estimate. Choose style, size, roof and region โ€” realistic low/typical/high figures from real pricing across 519 UK towns. No email required.

Get My 3 Free Conservatory Quotes
Takes 60 seconds ยท No spam ยท No obligation
Real pricing from 519 UK towns
Updated June 2026
Free โ€” no email needed
Instant estimate in 60 seconds

How Much Will Your Conservatory Cost?

Base style cost ร— size multiplier ร— roof multiplier ร— regional rate. Takes under 60 seconds.

How This Calculator Works

We combine conservatory style, size, roof type and your region with 2026 UK supply-and-fit pricing.

Base Style & Size

  • Lean-to ยฃ13,000 ยท Edwardian ยฃ18,000 ยท Victorian ยฃ19,000
  • Garden room ยฃ25,000 ยท Orangery ยฃ30,000
  • Small (โ‰ค12mยฒ) ร—0.80 ยท Medium (12โ€“20mยฒ) ร—1.00 ยท Large (20mยฒ+) ร—1.45

Roof: Polycarbonate ร—0.82 ยท Double glazing ร—1.00 ยท Solid tiled ร—1.48.

Region & Range

  • London +35% ยท South East +15% ยท South West +2%
  • East Midlands โˆ’8% ยท North West โˆ’12% ยท North East โˆ’15%
  • Wales โˆ’8% ยท Scotland โˆ’5% ยท NI โˆ’18%
  • Low/high band: mid ร—0.88 to ร—1.18.
  • Breakdown: ~45% structure, ~38% glazing & roofing, ~17% foundations & contingency.

Costs include supply, labour and VAT. A real quote follows a site survey.

Typical Conservatory Costs by Style (2026)

Indicative supply & fit base prices, medium size, Midlands baseline (glazing/roof upgrades add more).

StyleTypical specCost
Lean-toSmall/medium, polycarbonate or glass roof~ยฃ13,000
EdwardianMedium, glass roof~ยฃ18,000
VictorianMedium, bay-fronted~ยฃ19,000
Garden roomInsulated, solid roof~ยฃ25,000
OrangeryBrick piers + lantern roof~ยฃ30,000

These figures power the calculator above โ€” enter your own spec for a tailored estimate. For the full breakdown, read our complete cost guide.

Frequently Asked Questions

How much does a conservatory cost in the UK in 2026?

A typical UK conservatory costs ยฃ12,000โ€“ยฃ40,000 in 2026 depending on style, size and glazing. A small lean-to with polycarbonate roof starts around ยฃ10,000. A large orangery with solid tiled roof and bifold doors can reach ยฃ60,000+. Most homeowners spend ยฃ15,000โ€“ยฃ25,000 for a medium Edwardian or Victorian style.

Do I need planning permission for a conservatory?

Most conservatories fall under Permitted Development and don't need planning permission, provided they meet size limits (no more than 50% of the original house garden, max 4m high, not forward of the principal elevation). Listed buildings and conservation areas always need full planning permission.

What is the difference between a conservatory and an orangery?

A conservatory is predominantly glazed (walls and roof). An orangery has substantial brick or masonry pillars with a solid perimeter and a glazed or lantern roof section in the centre. Orangeries are warmer, more private and closer to a full extension in construction terms โ€” and cost more.

How long does a conservatory take to build?

A medium conservatory typically takes 6โ€“10 weeks from ground-breaking to completion: 1โ€“2 weeks for foundations, 1 week for brickwork base, 2โ€“4 weeks for the frame and glazing, and 1 week for finishing. A garden room or orangery can take 12โ€“20 weeks.

Is a conservatory worth it in 2026?

A well-built conservatory with a solid or glass roof adds 5โ€“10% to property value according to estate agents. Polycarbonate-roofed conservatories are less valued by buyers. An insulated garden room (with solid roof, underfloor heating and good glazing) is increasingly preferred and often commands a premium.