Orangery Cost Calculator UK
Get accurate orangery cost estimates — lantern roof, brick base, full glazing options.
Calculate Your Orangery Cost
How Much Does an Orangery Cost in the UK?
Orangeries cost more than conservatories due to their brick walls and lantern roof design. A standard 20m² orangery costs £30,000–£75,000 depending on specification. uPVC frames are cheapest (£25,000–£40,000), aluminium mid-range (£35,000–£60,000) and hardwood most expensive (£50,000–£100,000+).
Unlike conservatories, orangeries are built as part of the main house with solid brick walls, internal plastering and a central lantern roof light. They require planning permission in most cases and must meet the same building regulations as a house extension.
Frequently Asked Questions
How much does an orangery cost in the UK?
Typically £25,000–£100,000 depending on size, materials and specification. A 20m² aluminium orangery averages £40,000–£50,000 fully installed.
What is the difference between an orangery and a conservatory?
Orangeries have solid brick walls with glazed panels, a flat perimeter roof and a central lantern light. Conservatories have more glazing and a pitched or polycarbonate roof.
Do orangeries need planning permission?
Most orangeries exceed the size limit for permitted development and require full planning permission (£206 application fee). Always check with your local authority.
How long does it take to build an orangery?
A typical orangery takes 8–16 weeks from planning approval to completion, including groundwork, brickwork, glazing and plastering.
Are orangeries warmer than conservatories?
Yes — solid brick walls and lantern glazing provide better thermal performance than traditional conservatories. Orangeries can be used year-round.
What is a lantern roof?
A lantern roof is a raised glazed section at the top of the orangery ceiling that allows natural light to flood into the space from above.
Does an orangery add value to a property?
Well-designed orangeries typically add 5–15% to property value. They are valued as year-round living space rather than seasonal rooms.
What planning rules apply to orangeries?
Orangeries are treated as house extensions for planning purposes. Permitted development limits (50m² rear extension) may apply to single-storey rear orangeries in some cases.
What floor is best for an orangery?
Underfloor heating under porcelain tiles or engineered hardwood is popular. Ensure the orangery floor matches the existing house floor height and is properly insulated.
Can I have an orangery on the side of my house?
Side orangeries face stricter planning rules — they cannot typically exceed 50% of the width of the original dwelling under permitted development.
How do I heat an orangery?
Underfloor heating, radiators connected to the main boiler, or wall-mounted electric heaters. Log burners are popular as a feature but require building regs sign-off.
What is the best glazing for an orangery?
Triple glazing with low-emissivity coating and argon fill provides the best thermal performance. Self-cleaning glass is useful for the lantern roof.