Orangery Prices
Orangery Prices 2021: How much does an Orangery Cost?
With average orangery prices at around £18,000 to £19,000, this versatile hybrid of a conservatory and home extension allows you to blend two different types of living spaces.
What you get for your money, is a substantial made to order house extension that you, your family and your friends can enjoy at any time of the year.
Not only adding a new functional quality to your home, but also adding more space. The perfect room for entertaining or relaxing, adding an orangery to your home is a both a practical and financially sensible idea for anyone looking to extend their property.
In this article we aim to address what we think are the four most important things you need to consider before building an Orangery.
1Cost of an Orangery – what budget will you need?
If you and your family have been thinking about adding an orangery to your home, then its highly likely you have a lot of questions about the installation and other options involved in building one.
Not only do you need to figure out how much a new orangery costs, you probably also want a clear cut idea of the space, money and time you will need to commit to complete this kind of project.
To give you some idea of the budget that you are going to need just to consider building one, orangery prices can start from at least £15,000 to £20,000. High end orangeries can cost upwards of £30,000 to £50,000.
It’s not unusual for homeowners to spend in excess of £50,000 on a new orangery and some elaborate rooms have gone even higher in price.
Orangery Price Guide By General Size
The reality is, that with a bespoke home extension such as this, it is to be expected that there will be a large range of Orangery Prices in the market.
These will primarily be dependent on the size of the room you are hoping to build. However, you will need to bear in mind several factors at outset so that you can arm yourself with a budget with which to begin looking around.
If you are surprised by the potential level of investment needed to build an orangery compared to a conservatory, then you should consider that orangeries are more akin to a true home extension than a conservatory.
They are built with solid walls on proper foundations with ornate lantern roofing to top them off.

Is an orangery value for money?
Compared to the cost of an equivalent sized “traditional” home extension, orangeries add just as much monetary re-sale value to the property as an extension but can often cost less to build.
According to Real Homes magazine, the typical costs for a “solid-home extension” can range from £1,500 to £3,000 per square metre.
These costs may not include original design drawings (£500 to £1,000) , planning permission costs (£200), VAT at 20% or other fees such as building regulations (£300 to £500).
So a traditional type extension of 4m x 4m (16m2) could cost anything from £25,000 to £48,000.
The equivalent sized orangery prices can start in the region of £22,000 to £25,000.
Orangery Prices For Small, Medium & Larger Rooms
More about your budget
Building work is notoriously susceptible to changing circumstances as many people can testify to.
There can always be some snag or other that crops up unexpectedly. Maybe you overlooked having to move drains, or the foundations have to be dug deeper because of ground conditions.
In any event, it is going to be prudent to make an “allowance for the unexpected” of at least 10% of the original budget you have in mind.
One way to deal with this is to negotiate a defined “fixed price” contract with the installer that clarifies the situation. – this way, any extra expenses do not fall upon you.
Orangery Prices by room size
Width (mm) Depth (mm) Orangery Price Guide
4000 3000 £22,000 to £26,000
4500 3000 £26,000 to £30,000
4500 3500 £28,000 to £32,000
5000 3000 £30,000 to £35,000
5000 3500 £32,000 to £35,000
Please note that prices shown are provided as a rough guide only. Your Orangery costs will be based on your specific project and of course will be different to these and depend entirely upon a site survey.
2Settle on a design style
Some of the features you may want to include come with additional costs, which you may be tempted to leave out. However, there are some features that should not be sacrificed for the sake of saving a few pounds—the roof and basic structure.

If you really can’t make your mind up at the beginning of the project about the inside of the room, you can always add interior design layers to your orangery after it is built.
However, the signature roof lantern design of orangeries is a “keeper”, and in our humble opinion much better than opting for any type of pitched roof.
Although you may find additional costs are involved due to the materials and engineering needed to finish the product to your preferences, it is worth your time and money.
Are you one who likes something classic such as a Georgian or Victorian Orangery? Or do you prefer something along the lines of a more contemporary orangery design?
- What type of doors would you prefer? More classic like French doors, or more modern like Bifold doors?
- What type of frames & material do you prefer? UPVC, Aluminium, Timber?
- What style of windows – plain, patterned, Georgian bars etc?
Room proportions can play a big part in how well your orangery will “fit-in” with your home. Having the room too big can overpower your home, too small can make it look “temporary”.
Believe it or not, there is something in design circles known as The Golden Ratio Calculation. The golden ratio is approximately 1 to 1.6. Using this ratio, the ideal width for your orangery would be about 620mm for every 1,000mm width of the house it’s attached to.
Still unsure? – See our article about the differences between an Orangery & Conservatory.
3“An ounce of prevention is worth a ton of cure”
Pre-plan your installation. Simple things like those listed below are worth knowing the answers to, well beforehand.
- How are the builders going to access your property?
- How will you deal with delivery & storage of building materials?
- What about keeping your neighbours(s) informed?
- When is the best time to start work?
- What about water & power supply for the construction work?
- Are there any drains, sewers, manholes or mains supply pipes underground where you plan to build?
- Where are you going to build it? At the side of the house or at the back is a common location but if you have an awkward area then you may have to compromise on one thing or another.
There is also “red-tape” to think about, planning permission being one element. It’s a pretty safe bet that an orangery will need some type of planning permission to build. Who is sorting this out? You or your contractor – and is it included in the price?
Timing is also worth considering. Although it rains a lot in the UK no matter what the season, do you really want to be building during the depths of the British winter?
4Choosing your installer – do your “due diligence”
Making a bad choice here will ruin everything and could cost you a small fortune to redress.
Accreditation is a good place to start – NHBC or FENSA, CERTASS, DGCOS memberships give an indication of the professionalism of the installer.
Be sure to thoroughly check out any warranties or guarantees on offer. Many installers can provide an insurance backed deposit guarantee.
For example, DGCOS (Double Glazing & Conservatory Ombudsman Scheme), are quoted as confirming:
“every customer of a member will receive deposit and stage payment protection and an Insurance Backed Guarantee”.
Whilst we are talking about insurance, check that the installer has current public liability insurance and also check your own home insurance policy for your public liability cover.
You will also need to inform your insurance company of the new extension so that it can be included in your home insurance policy.
Compare written orangery prices quotations – do not go for the first price you get.
Get detailed written quotations from at least 4 reputable sources. These quotes should detail all aspects of the work being undertaken and give a fixed cost.
Don’t be worried about getting multiple quotations, the more information you have the more informed decision you can make.
We very often have seen that it’s not always down to the cheapest quote when it comes to homeowners deciding on any particular installer. Rather, it is a combination of price, reputation and the design on offer that tips the balance in favour of one installer over another.
Compare Orangery costs Nationwide: Free quotes from fully accredited Local & Regional Companies