How Much Does a Conservatory Cost in the UK?

A conservatory is one of the most popular ways to add light and space to a home, but the honest answer to "how much?" is "it depends on what you build". Here is a straight breakdown of conservatory cost in the UK for 2026, split by style and size, so you can budget with your eyes open.

As a rough starting point, most conservatories in York and North Yorkshire land somewhere between £10,000 and £30,000 fully built, with smaller lean-to designs at the lower end and large or heavily glazed rooms at the top. Those are ballpark figures to help you plan, not a quote. Every home and every base is different, so the only way to get a real price is to have someone come and measure up.

What you are actually paying for

The headline price of a conservatory is made up of several parts, and the frames and glass are only one of them:

• The base and groundwork. Digging out, laying foundations and building the dwarf walls. On a tricky or sloping site this can be a bigger slice than people expect.
• The frames. The uPVC or aluminium framework that holds the glass.
• The glazing. The glass in the walls and roof, including any upgrades for heat or noise.
• The roof. A glass roof, a polycarbonate roof or a solid tiled roof, each at a different price.
• The fitting and finishing. Flooring, electrics, plastering where needed, and tidying up.

When one quote is much cheaper than another, it is often the base or the roof that explains the gap.

Rough price guide by style

Different shapes cost different amounts because they use more or less material and labour. As a rough 2026 guide for a mid-sized conservatory, supplied and fitted:

• Lean-to. Simple, single-slope roof. Often the most affordable, from around £8,000 to £15,000.
• Victorian. Bay front with a faceted, multi-panel roof. Roughly £12,000 to £22,000.
• Edwardian (Georgian). Square or rectangular for usable floor space. Similar to Victorian, around £12,000 to £22,000.
• Gable-fronted. A tall, upright front wall for a grand feel. Typically £15,000 upwards.
• Orangery style. A hybrid with more solid walls and a flat roof lantern. Usually £20,000 and up.

Larger footprints, premium glass and a solid roof all push the figure higher. Treat these as a feel for the gaps between styles, not fixed prices.

The choices that move the price most

A few decisions make a real difference to the final number:

• Size. Every extra square metre adds base, frames and glass, so footprint is the biggest single driver.
• Roof type. A glass roof costs more than polycarbonate but performs far better. A solid, tiled roof costs the most but makes the room usable all year and is worth a look if you want it to feel like a proper extension. Some homeowners add a roof lantern or rooflight to bring daylight into a solid roof.
• Glazing spec. Self-cleaning glass, solar-control glass to stop the room overheating in summer, and better insulation all add a little.
• The base. A straightforward level plot is cheaper than a sloping garden that needs extra groundwork.
• Frame material. uPVC is the affordable all-rounder. Aluminium costs more but allows slimmer frames and larger panes.

Planning and Building Regulations

Many conservatories are built under permitted development, which means they do not need full planning permission, but there are limits on size, height and how close they sit to boundaries. Rules are also different in conservation areas, which parts of York fall into. Building Regulations may apply too, depending on the size and how the room is separated from the house. Because these rules change and depend on your exact property, it is worth checking the current position with your local authority before you commit.

Is a conservatory the right choice?

A conservatory is usually the most cost-effective way to add a bright, extra room without the price of a full brick extension. If you want a space you can use comfortably in the depths of a Yorkshire winter and the height of summer, spend a little more on the roof and glazing rather than cutting corners there, as that is what decides whether the room gets used all year. Our conservatories and orangeries page shows the styles we build across the area.

FAQs

How much does a conservatory cost in 2026?

As a rough guide, most conservatories come in between £10,000 and £30,000 fully built, depending on the style, size, roof and glazing. A small lean-to sits at the lower end and a large or solid-roofed room at the top. A measured quote is the only way to get an accurate figure.

What is the cheapest type of conservatory?

A lean-to is usually the most affordable, thanks to its simple single-slope roof and straightforward build. As a rough 2026 guide it often starts from around £8,000 to £15,000, though size and specification still make a difference.

Does a conservatory need planning permission?

Many are built under permitted development without full planning permission, but there are size and boundary limits, and different rules apply in conservation areas. Building Regulations can also come into play. Always check the current rules with your local authority for your specific property.

What roof is best for a conservatory?

It depends on how you want to use the room. Glass roofs give light and good performance, polycarbonate is the cheapest but least comfortable, and a solid tiled roof makes the space usable all year. Adding a roof lantern to a solid roof brings back some of the daylight.

Thinking about adding a conservatory or orangery? Download our latest brochure to see the styles and roof options, or request a free quote and we will come and measure up across York and North Yorkshire.