Interactive calculator with real prices adjusted by UK region. Select your scope, pick your region, get your instant estimate.
1. Choose Scope of Work
2. Select Your Region
What Affects the Cost?
Size and style
Roof type (glass, polycarbonate, solid)
Base and foundations
Heating and electrics
Building regulations
Planning permission
Frequently Asked Questions
How much does a conservatory cost UK 2026?
A conservatory costs £8,000-£40,000+. A lean-to style starts at £8,000-£15,000. Victorian and Edwardian styles cost £12,000-£25,000. Orangeries cost £20,000-£40,000.
Do I need planning permission for a conservatory?
Most conservatories fall under permitted development if they are single storey, do not cover more than half the garden, and do not exceed height limits. Always check with your local council.
Does a conservatory add value?
A well-built conservatory with a solid roof can add 5-10% to property value. Cheap conservatories with polycarbonate roofs may add little value. An orangery adds the most value as it is considered a true room.