Conservatory Costs: Overview

Making an investment in a conservatory is a great way to add space and value to your home. Understandably, most people would like to know exactly how much they are looking at investing before getting too far into the process, but it’s actually rather difficult to find out. Many conservatory companies are somewhat cagey about publishing their prices anywhere, as often they will fabricate ‘discounts’ and special offers to pressure you into signing before you are really ready.

For this reason, it’s a good idea to find out what the average cost of a conservatory such as the one you are considering will be before you invite any salespeople round, so that you can be one step ahead of them when it comes to revealing the quote. Here’s what you need to know.

How much does a conservatory cost?

The precise cost of your conservatory will depend greatly on the type and specification you choose. As a rule of thumb, a conservatory will cost around £500 per square meter to have fitted by a professional, up to £750 per square metre for high specification buildings. Here are some examples:

Lean-to conservatory

The most basic conservatory, with three glass sides and a roof that leans onto the existing building’s wall. Small sized ones with a polycarbonate roof will cost around £2,200 for supply only, up to £6,000+ for a fully fitted medium sized model.

Victorian conservatory

The classic conservatory shape, these vary greatly in size and specifications. A small sized model, e.g. 3,000 x 2,800mm, can be supplied for you to build yourself from as little as £3,000 – £4,000. To have a small to medium sized one fully fitted will cost from £7,500 – £9,000. A hardwood fitted conservatory measuring approximately 3,000 x 3,000mm will set you back in excess of £10,000.

P, T and L shaped conservatories

These are made to measure, and designed to your individual specifications, so it’s hard to estimate a cost. However, if the floor space is in the region of 20m2 and you intend to build it yourself, you’ll be looking at a cost ranging between £5,000 and £7,000. To have one fully fitted will usually exceed £10,000 depending on the design.


These are the Rolls Royce of conservatories, and tend to be more substantial, and therefore more expensive, buildings to erect. A fully fitted orangery with around 20m2 of floor space will cost in the region of £15,000 – £25,000 in uPVC or aluminium. The same conservatory in timber could be as much as £35,000. For a bespoke orangery made from hardwood to your specifications, you can expect the bill to exceed the £50,000 mark.

For more information, there is a useful guide to conservatory prices here.

Keeping the cost down

A conservatory is never going to be cheap, but there are a few things you can do which could help to keep the cost down if you’re tight on budget. For instance:


If you have experience of groundwork’s, preparing the base could save time and money when it comes to erecting a conservatory.

Self build

If you’re really handy, you might want to go for a supply only option. However, we do not recommend this unless you have several people on hand to help out, and plenty of experience in building.

Keep it simple: The more complexities you add to your design, the more the cost will creep up. Curves and corners are expensive to build, and opening windows all come at a cost too.

Savvy interior design: Many new conservatory owners can end up spending almost the same again on the interior decoration of their new room. As much as you want your space to look nice, don’t go overboard. Check the local second hand market for furniture, material for blinds and even flooring; you can always upgrade later on.

Return on investment

A conservatory can be a great way to add useful space and also value to your home. A typical conservatory costing between £5,000 and £20,000 can add on average 7 per cent to the value of your home. A full blown extension costs from £10,000 – £30,000 and adds around 11 per cent, but is a lot harder to get permission for in the first place. This makes a conservatory one of the best investments you can make in your home.