- 28 July 2025|
- News
Adding a conservatory is a great way to create extra living space, enjoy natural light and add long-term value to your home. Whether you’re imagining a garden room, a bright home office or a family-friendly extension, the cost of building a conservatory is often the first thing to consider.
A well-designed conservatory doesn’t just offer extra living space – it can also be a smart investment. According to the Royal Institution of Chartered Surveyors (RICS), a professionally built conservatory can increase the value of your home by up to 7%, making it one of the most cost-effective home improvements for both daily enjoyment and long-term resale potential.
In this guide, we’ll walk you through everything that contributes to the overall cost – from foundations and roof types to glazing, design and labour. We’ll also break down price ranges for different types of conservatories including lean-to, Victorian and Edwardian designs, based on real-world projects across the North East.
What is the average cost of building a conservatory in the UK?
The average cost of building a conservatory in the UK ranges from £13,500 to £36,000 depending on size, design and material choices. Custom features and premium materials can raise the total cost to over £40,000 for large, high-spec installations.
Factors that affect the cost of a conservatory
Several elements influence the cost of a conservatory beyond the structure itself. A few of the biggest factors include:
Size of the conservatory
Larger builds mean more materials, more labour and potentially planning requirements. Costs typically increase in line with square footage.
Type of conservatory
Different types of conservatories come with different costs depending on shape, roof pitch, and structural requirements. Here’s a quick guide to popular options:
- Lean-to conservatory: Often the most affordable option, offering clean lines and a simple structure. Ideal for modern homes.
- Victorian conservatory: A classic style with ornate details and a steeply pitched roof. A popular choice for period properties.
- Edwardian conservatory: Known for its square footprint and flat front, which maximises usable floor space.
Foundation work and ground conditions
If the ground needs significant excavation, drainage or levelling, this will raise your conservatory costs. Solid, level ground usually means lower costs and quicker construction.
Roof options
The type of roof plays a huge role in the total cost of a conservatory. Your options include:
- Glass roof: Brings in plenty of light but may require solar control glazing to reduce glare. Additionally, the type of glass used can significantly impact insulation and energy efficiency.
- Solid roof: Offers excellent energy efficiency and a ‘true room’ feel. Costs more upfront but improves thermal performance.
- Tiled roof: Provides a natural look and better insulation. Often used in new builds or conservatory roof replacements.
Type of glazing
Glazing affects both cost and comfort. At Enhance Conservatories, we offer high-performance glass panels designed for energy efficiency and year-round use. Considerations include:
- A Rated Double glazing
- Solar control
- Self-cleaning glass
- Advanced insulation
Custom features and finishes
Optional extras and additional features like underfloor heating, spot lighting, ceiling fans or bi-fold doors can increase the overall cost. Interior finishes such as plastering, flooring and integrated electrics are all important for a space you can enjoy every day.
What do planning permission and building regulations add to the cost?
Most conservatories in the North East fall under permitted development, especially if under 30m² and separated by external doors. However, if your design falls outside those rules – for example with an open-plan layout or larger footprint – you may need planning permission or Building Regulations approval.
This can add between £600 and £4,000 depending on surveys, applications and third-party consultant costs. At Enhance Conservatories, we manage this process for you, ensuring full compliance with local regulations and structural integrity.
Breakdown of the estimated costs
Here’s a closer look at what makes up the total cost of a conservatory build:
| Component | Estimated Cost Range |
| Groundworks & brickwork | £2,500 – £6,500 |
| Frames & glazing | £2,000 – £6,500 |
| Roof (glass or solid) | £2,500 – £7,000 |
| Doors (French, sliding, bi-fold) | £1,500 – £5,500 |
| Interior finishes | £2,000 – £3,500 |
| Labour & installation | £2,400 – £5,000 |
| Planning/building compliance | £600 – £4,000 |
These figures are approximate and vary based on material choices, size, design complexity and the type of conservatory.
Which type of conservatory is most cost-effective?
Lean-to conservatories are usually the most affordable option. Their rectangular shape, sloping roof and simpler design mean lower costs for materials and labour, making them ideal for budget-conscious homeowners or smaller garden spaces.
Are conservatories worth the investment?
A professionally installed conservatory offers more than just additional floor space. It provides:
- A touch of elegance to your home exterior
- An extra room for relaxing, working or entertaining
- Improved energy efficiency with the right glazing and roof type
- Increased property value
At Enhance Conservatories, many of our North East customers find that their new conservatory becomes the most used room in the house.
Can a conservatory be used year-round?
Yes – but only with the right design choices. Combining either a high performance glass or a solid/tiled roof with advanced insulation and energy-efficient glazing allows you to use your conservatory in all seasons. This is particularly useful in the North East where weather conditions can be unpredictable.
If you already have a polycarbonate conservatory and struggle with temperature control, a roof replacement could make a big difference without starting from scratch.
How long does it take to build a conservatory?
A typical conservatory project takes 3 to 5 weeks from groundwork to final finishes. Factors such as weather, ground conditions and supplier lead times can extend or reduce this timeframe. Enhance Conservatories keeps you informed throughout the process to ensure a smooth and stress-free experience.
Final thoughts: What’s the best option for you?
The best conservatory design depends on your lifestyle, budget, and home style. Careful planning is essential, whether you prefer the clean lines of a lean-to or the timeless appeal of a Victorian conservatory. Investing in a new conservatory is a significant investment that pays back in space, comfort, and home value.
A high-quality build using premium materials and expert installation is the best way to ensure long-term satisfaction. At Enhance Conservatories, we work closely with homeowners across the North East to design and install bespoke conservatories that fit your property, needs and budget.
Ready to increase the value of your home with a custom-designed conservatory?
Our expert team is here to help you plan every detail – from initial ideas to professional installation. We offer tailored quotes based on your specific needs, with transparent pricing and full support at every stage.
Whether you’re looking for a garden room, home office or stylish extension, our custom designs are built to last and add real value to your home.
Speak to our friendly team today to arrange your free consultation. We’ll guide you through every step, from tailored designs to professional installation.
Get in touch now and take the first step towards creating the extra space you’ve been dreaming of.