How Much Does an Orangery Extension Cost in 2025?
Thinking about adding an orangery to your home? Whether you’re after more space, more light, or more luxury, an orangery is one of the most elegant and practical ways to expand your living area. But how much does an orangery extension cost in 2025?
In this post, I will break down average orangery prices, the factors that affect cost, and how to get the best value from your investment—without compromising on style or quality.
Average Orangery Extension Cost (2025)
In 2025, the average cost of building an orangery in the UK ranges from:
| Type | Size | Estimated Cost |
|---|---|---|
| Basic orangery | ~15m² | £25,000 – £35,000 |
| Mid-range orangery | ~20–25m² | £35,000 – £50,000 |
| Luxury orangery | 25m²+ | £50,000 – £100,000+ |
Orangery Cost Breakdown
Here’s what typically goes into the total price of an orangery extension:
1. Materials
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Brickwork: £4,000–£10,000
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Glazing & roof lanterns: £5,000–£20,000
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Frames (aluminium, timber, uPVC): £3,000–£12,000
2. Labour & Construction
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Builders, groundworks, structural work: £10,000–£25,000
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Project management & design fees (if applicable): £2,000–£5,000
3. Interior Fit-Out
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Flooring: £1,500–£4,000
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Heating & electrics: £2,000–£6,000
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Plastering & decoration: £1,000–£3,000
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Bifold doors, skylights, blinds (optional): £2,000–£8,000+
What Affects the Cost of an Orangery?
1. Size & Shape
Larger orangeries naturally cost more, especially if complex shapes or roof structures are involved.
2. Materials
Aluminium frames and high-spec glazing will cost more than standard uPVC (not PVC – as there is a difference between uPVC and PVC) or double-glazed units.
3. Location
London and the South East often have higher labour costs than other regions in the UK.
4. Planning Permission & Building Regulations
If your orangery exceeds permitted development limits or is attached without separation, you may face extra design or compliance costs.
5. Finish Level
Luxury interiors, smart home integration, or underfloor heating will push up the budget—but also enhance long-term value.
Orangery vs. Conservatory vs. Full Extension
| Feature | Orangery | Conservatory | Full Extension |
|---|---|---|---|
| Typical cost | £30k–£60k | £15k–£35k | £50k–£100k+ |
| Roof | Part-solid, with lantern | Fully glazed | Fully solid |
| Natural light | High | Very high | Moderate (windows) |
| Thermal comfort | Excellent | Moderate–Good | Excellent |
| Planning required | Sometimes | Often not | Often required |
| Looks like… | Blended with home | Garden room look | Full part of house |
Tips to Save Money on Your Orangery Build
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Keep the shape simple (square or rectangle)
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Use uPVC or aluminium frames over timber
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Opt for standard bifold sizes to avoid custom fabrication
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Choose a modular orangery system to reduce build time and labour
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Use standardised roof lanterns instead of bespoke models
At Vergolus, we offer modular orangery builds that save time and money—without sacrificing design.
Long-Term Value & ROI
A high-quality orangery can:
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Add 5–10% to your home’s market value
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Improve day-to-day living with flexible open-plan space
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Increase energy efficiency with modern glazing and roofing
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Create wow-factor that boosts buyer appeal
While the upfront cost is significant, the return in both lifestyle and resale value is substantial.
Frequently Asked Questions: How Much Does an Orangery Extension Cost in 2025?
1. How much does an orangery extension cost in 2025?
In 2025, the average cost ranges from £25,000 to over £100,000, depending on size, materials, and finishes.
2. What is the cheapest type of orangery?
A basic modular orangery built with uPVC and standard glazing starts around £25,000–£30,000, offering a cost-effective entry point.
3. Is an orangery more expensive than a conservatory?
Yes. Orangeries use more brickwork and often higher-spec roofing and insulation, making them £10,000–£20,000 more than a comparable conservatory.
4. What’s the most expensive part of an orangery?
Usually the roof structure and glazing, especially if you choose a bespoke roof lantern, aluminium frames, or smart glass.
5. How can I reduce the cost of an orangery?
Use standard shapes, modular systems, and simpler finishes. Choosing uPVC over timber and opting for off-the-shelf roof lanterns also cuts costs.
6. Do orangeries add value to your home?
Yes. A well-designed orangery can add 5–10% to your home’s market value while enhancing its usability and appeal.
7. Do you need planning permission for an orangery?
Often no—most orangeries fall under permitted development if they meet certain size and design criteria. Always check locally.
8. Are orangeries energy efficient?
Modern orangeries are highly energy-efficient, especially with Low-E glazing, insulated walls, and solid or hybrid roofs.
9. How long does it take to build an orangery?
Most orangeries take 4–8 weeks from start to finish, depending on weather, design complexity, and planning requirements.
10. What’s the ROI of building an orangery?
Besides daily comfort, orangeries typically provide a high ROI, improving lifestyle and boosting long-term property value.
Final Thoughts: Is an Orangery Worth the Investment?
If you’re looking for a luxury extension that balances form and function, an orangery is an outstanding option in 2025. With greater energy efficiency, better integration with your home, and year-round comfort, it often offers the best of both worlds.
Get a tailored quote for your orangery today.
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