Conservatory Extensions: Ideas & Costs
Enjoy your garden year-round with a conservatory extension. Discover stunning design ideas, costs, and key planning and building regulation advice.
Picture stepping into a sunny space where indoors meets outdoors; that’s the magic of a conservatory extension. As we look to expand our living areas, conservatories are becoming a popular choice, not just for extra space but for a connection to the great outdoors.
A conservatory extension is a glazed structure added to the back of your home, a light filled space to relax or dine. These extensions merge indoor and outdoor living, they are popular in all climates.
Conservatory extensions offer flexibility to your living space and understanding the differences between conservatories is key to making the right choice for your home. Whether you want a space for family meals or a bright airy space to chill out in, each type of conservatory has its own features and benefits.
Knowing the different types and costs of conservatories is key to anyone considering this home improvement. From lean-to’s that maximise space to the more elaborate Victorian styles, there are many to choose from, each with different costs and looks. And of course, factors like materials, labour and local building regulations all impact the overall cost.
This article will walk you through the process of planning a conservatory extension, covering costs, design ideas and essential tips to ensure a successful project. Whether you want to extend your kitchen or just have a new light filled room to chill out in, the information here will help you make informed decisions for your conservatory dreams.
Conservatories have been a popular addition to homes for years, providing extra living space that bridges the gap between indoors and outdoors. They are basically glass structures with the standard definition requiring at least 50% of the walls and 75% of the roof to be glazed or translucent. This design gives a light and airy feel which can be used for many purposes such as dining areas, snug home offices or peaceful retreats to relax in.
With large windows and panoramic views conservatories bring the outside in, so you can enjoy your outdoor space without being in it. They have a big advantage over traditional extensions by providing loads of natural light, lifts the space and the ambiance.
Modern conservatory styles have made the lines between conservatories and standard extensions blur. New designs often feature solid, lightweight tiled roofs which makes them usable all year round and ties in with both conservatory and traditional building styles. And options for thermal efficiency have improved so modern conservatories can be comfortable whatever the season.
Lean-to’s are known for their simple design and affordability, prices range from £10,000 to £20,000. With a sloping roof that joins onto the main house this design is perfect for smaller homes. They are cost effective and perform well on thermal efficiency which is key to being able to use the space all year round.
Because of its simplicity the lean-to is a versatile addition which can be used for many purposes, whether as a bright dining space or a peaceful lounge area. They are a practical solution for homeowners who want extra living space without a full extension.
The Victorian conservatory is a classic, a bay front, a deep pitched roof and intricate detail that fits in with historical and period homes. It’s sophisticated and can really lift the look of a house. Prices for the Victorian conservatory are between £12,000 to £25,000 which reflects its grandeur and detail.
A Victorian conservatory with its traditional look is a statement piece, it brings the inside and outside together. Its design makes the space and light feel bigger and is a functional and beautiful addition that fits in with homes that have historical architecture.
The P-shaped conservatory is a design that combines the Victorian and lean-to styles, a P shape that makes the most of the space. This is perfect for larger homes where you can divide different areas within the same extended space.
It can be designed to blend in with the original architecture, the details such as brickwork and French doors or a roof lantern can bring in the natural light and create a flow with the main house. The P-shaped conservatory can be a multi functional extension that fits in with and lifts the architecture of the house.
The cost of a conservatory extension can vary greatly, in the UK it can range from £9,000 to £25,000. There are many factors that will affect the final cost. Compared to a traditional extension conservatories are a more cost effective solution, they don’t require architect fees and skip hire. But the foundation of a glass conservatory is key to the structure’s stability and longevity and will impact on the overall cost depending on the ground conditions and preparation required.
Also turning your conservatory into a architectural feature that matches your outdoor space will increase the appeal and therefore the cost. This could be unique design elements like a roof lantern, solid roof or tiled roof options and bi-fold doors or French doors. But the extra cost will be offset by the increase in the value of the property. A conservatory isn’t just extra living space it’s often seen as a investment that will add value to your home.
In total the cost can be seen as an expense and an investment, the added living space and potential for a better market position will affect how homeowners see the value added by their conservatory project.
When planning a modern conservatory the choice of materials is key for cost and thermal efficiency. Double or triple glazing is standard for insulation and thermal performance, keeping the conservatory warm in winter and cool in summer. Today’s roofing options can include solid roofs with high quality insulation materials like polyurethane foam or polyisocyanurate panels for superior thermal resistance.
Another insulation solution is multi-foil insulation—the reflective material layers trap air and reduce heat transfer and loss. Insulated roof panels are a popular choice over traditional glass roofs to combat overheating in the summer. These materials cost from £30 to £50 per square metre and will affect the overall cost but will save you money in the long run with energy efficiency.
There are also various other costs to consider in a conservatory project. Planning permission and building regulations, which is a necessity for compliance, can cost from £200 to £1,200. In some cases additional cost for waste removal and a structural engineer’s report will add to the project cost. The interior decoration, which includes painting, flooring and finishes will add an extra £600 to £2,500. Furniture and accessories to complete the conservatory will also cost from £600 to £2,500. And finally yearly maintenance cost for a conservatory is between £250 to £600 and is essential to keep the extension in good condition over time.
When planning a conservatory extension it’s essential to know the average costs to budget. A whole conservatory extension can cost from £10,000 to £40,000 with most homeowners spending around £22,000. These costs can be higher or lower depending on many factors.
Materials will play a big part in the final cost. For example UPVC frames are more budget friendly than aluminium or timber. Roofing options also affect the cost variation, polycarbonate roofing is more affordable and provides basic protection and functionality, glass roofing will increase the aesthetic and let in more natural light but at a higher cost.
Another factor to consider is the glazing. Double glazed windows are more expensive upfront but will provide better insulation and save you money in the long run. Please note these costs vary:
By considering these you can budget better for your conservatory extension.
Let’s get into the nitty gritty of the costs for each conservatory design to give you a better idea of budgeting for your project. Each conservatory style has its own architectural features and pricing:
The design will play a big part in the overall cost of the conservatory extension and understanding these subtleties will help you make an informed decision that fits your budget and tastes.
Compared to traditional extensions, conservatories are more affordable. While conservatories cost from £10,000 to £40,000 with an average project costing around £22,000, traditional extensions can cost more, mainly because of the complexity of the build.
Traditional extensions have extra costs like architect fees, skip hire for waste and full building regulation fees which can add up quickly. The cost per square metre is around £2,000 to £2,500 similar to conservatories but without the design and indoor/outdoor living that conservatories offer.
Interestingly conservatories still need a solid foundation like traditional extensions, share the same commitment to structural integrity without the higher costs of full building regulations. The materials and roofing options for conservatories offer more flexibility and cost effective alternatives to the more rigid and expensive options for traditional extensions making conservatories a great option for extra living space.
When planning a conservatory extension, you need to explore ways to save costs without sacrificing the dream of extra living space. With an average conservatory project costing £22,000, budgeting is key. Cost savers can be found in the materials, design and project management.
Choosing budget friendly materials like UPVC frames instead of timber or aluminium can save you a fortune. Polycarbonate roof panels instead of glass can save you upfront costs and simplify the installation process. Since conservatories have simpler structures than traditional extensions they require less materials which can be a big bonus for the budget.
Also conservatories have more relaxed planning permission requirements which can mean a quicker build and lower labour costs. Simplifying design elements or reducing the size of the conservatory can also save you money. Always assess how each part of your conservatory design and materials will impact the overall cost and make adjustments as needed to stay within budget.
The choice of materials not only sets the style of your conservatory but also affects the cost. For example choosing UPVC frames over timber or aluminium can save you a lot as UPVC is cheaper and requires less maintenance.
Roofing options are also key to the budget. Polycarbonate roof panels are much cheaper than glass but offer a practical solution to save costs. It’s not just the upfront cost to consider; energy efficiency should also be thought of long term savings. Investing in high quality triple glazing can save you money on future energy bills by keeping the conservatory warmer.
Materials like low-E coatings and inert gas fills like argon in the glazing units can further improve thermal efficiency. Although these advanced options may cost more upfront they can save you money on heating bills in the long run making it a good investment for a conservatory that’s comfortable whatever the weather.
Modern conservatories are more than just a visual addition to a home; they are designed with energy efficiency in mind. Energy efficient glass and improved insulation materials help to keep the indoor temperature and make the space comfortable whatever the season. This focus on thermal performance means modern conservatories can reduce heat loss which means lower energy bills - a big long term saving for homeowners.
Glazing options are key to energy efficiency. Homeowners can choose between double and triple glazing both of which are better than single pane glazing for energy loss. Double glazing is good but triple glazing takes it to the next level by adding an extra layer of insulation - making conservatories comfortable in extreme weather. The use of advanced glazing technology is the move towards energy efficient home extensions that don’t compromise on comfort or style.
One of the benefits of energy efficiency is a conservatory extension that looks great and is practical too. Insulation is at the heart of an energy efficient conservatory so heating costs are kept to a minimum and comfort is maximised.
Choosing energy efficient designs in your conservatory build comes with many benefits. The structures with features like double or triple glazing, insulated frames and advanced heating and cooling systems will reduce overall energy consumption. Unlike old conservatories that were too hot in summer and too cold in winter, energy efficient conservatories will maintain a stable temperature all year round making the space more comfortable and usable.
Thermal efficiency not only controls temperatures and reduces heat loss but also the look and functionality of a conservatory. These spaces blend in with outdoor living and provide a sustainable environment inside, a big tick for buyers who want to save energy and costs. Robust insulation means these conservatories are a true extension of the living space and can be used all year round.
When considering a conservatory extension underfloor heating is a popular option for warmth all year round. This is especially useful for dining or social areas. There are many designs to choose from, from traditional to modern so you can find the perfect one for you.
In energy efficient conservatories sustainability is more than a buzzword; it’s a reality achieved through many ways. Energy efficient air conditioning units for example will cool effectively without high costs or high energy consumption so perfect for warm months. Ventilation systems including roof vents and opening windows will also improve thermal performance of conservatories by controlling temperature and humidity.
Light management is another factor that affects energy consumption. Blinds or curtains can block out excessive sunlight which will reduce indoor temperature and therefore reduce the need for cooling systems. Automated shading systems also bring convenience into the equation so you can control light and temperature with ease and more energy savings.
Beyond the immediate comfort levels these systems and designs are a long term commitment to environmental sustainability. By reducing overall energy consumption energy efficient conservatories show how extensions can be luxurious and responsible and contribute to conservation of natural resources and reduction of carbon footprint.
In summary modern style with energy saving technology has made conservatory extensions a must have for the eco friendly and cost conscious homeowner. The many energy efficient options available today means the decision to extend your home with a conservatory is one that will benefit the environment, energy savings and your living space.
When considering a conservatory extension to your living space you need to understand the project timelines. From conception to completion the process has several stages each with different durations.
The planning and design stage is critical and takes between 2 to 6 weeks. During this time homeowners finalise the conservatory design and obtain any necessary planning permission or confirm their development rights. This stage ensures the conservatory project meets local regulations and the original house style.
After the design stage site preparation and groundwork begins. This stage takes 1 to 2 weeks to clear the construction area and lay the foundations which is the base of a stable and secure conservatory.
Then the conservatory frame is built. This stage takes 3 to 6 weeks and includes building the walls, roofing options (flat roof or solid roof) and flooring. Whether it’s a Victorian conservatory or a modern conservatory with bi-fold doors and a roof lantern this stage will vary depending on the complexity and style of conservatory chosen.
Please note that while conservatories are quicker to build than brick and mortar extensions overall installation times can still vary. Factors such as the size of the conservatory, design complexity, roofing options (tiled roof or glass roof) and the installer’s experience will affect the total time from start to finish.
The installation time for a conservatory varies but is much quicker than a traditional house extension. For example an Edwardian conservatory using the ConservaBase system can be completed in 4 to 6 days. This is because the system is prefabricated so the assembly process is much faster.
However several factors can affect installation times, the size of the conservatory, the style and the roofing options. Weather conditions also play a big part as bad weather can delay the work and extend the build time. The experience of your chosen conservatory installation team can also make a big difference to the speed of the build.
Several factors can affect the timeline of a conservatory installation so every project is unique in its duration. Using systems like ConservaBase can speed up an Edwardian conservatory installation to 4 to 6 days. But the same speed may not apply to a more complex P shaped conservatory or a design with more intricate features like triple glazing for thermal performance.
Size and style are the main factors that affect installation time. Larger designs or those with more intricate features like roof lanterns, French doors or bi-fold doors will extend the project timeline. The planning and design stage before construction takes 2 to 6 weeks to ensure a thorough and compliant conservatory project plan.
Site preparation is another timeline influencer and can take 1 to 2 weeks. This stage sets the foundations for the construction stage which takes 3 to 6 weeks depending on the complexity of the conservatory and the level of thermal performance required.
And finally the installer’s experience will make a difference in the project timeline. A friendly team of experienced professionals will make the process smoother and quicker for your peace of mind.
In summary understanding these timelines and factors will help you set realistic expectations and plan for a conservatory extension that adds to your outdoor space with minimal disruption to your daily life.
The installation of a conservatory can take anywhere from a few days to several weeks depending on many factors including the style and size of the conservatory, weather conditions, the experience of the installation team and the type of base being used. A modern conservatory like an Edwardian style conservatory using the ConservaBase system can be installed in 4 to 6 days. Much quicker than a traditional extension which can take longer to build.
Remember while the style and system used can be a big factor in the timeframe, weather can also delay the process. So having a skilled and friendly team on hand will give you peace of mind knowing your conservatory project will be done quickly.
When extending your living space with a conservatory it’s worth considering all the factors that can affect the timeline. Although the build time for an Edwardian conservatory with the ConservaBase system is 4 to 6 days, this can vary.
The planning and design stage is key and takes 2 to 6 weeks. This allows you to finalise your designs and get any necessary planning permission to ensure the project is compliant with development rights.
Site preparation is another important stage and can take 1 to 2 weeks. This stage involves clearing any existing structures and laying the foundations for a stable conservatory extension.
Once the groundworks are done, building the conservatory frame is the next big stage. Depending on the range of conservatories, style of conservatory and roofing options (solid roofs, tiled roofs, glass roofs) this can take 3 to 6 weeks.
Remember these timescales can vary depending on the size of the conservatory, the experience of the team working on your conservatory project and the design elements such as French doors, bi-fold doors or a roof lantern.
Each stage helps to create a modern conservatory that’s thermally efficient and gives you peace of mind with a comfortable outdoor space.
When extending your home with a conservatory it’s not just a case of choosing the right style of conservatory or glass or solid roof. Building regulations are key to ensure your new living space is not only looking good but also safe and energy efficient for you and the environment.
Recent changes have highlighted the importance of these regulations. Now all conservatories, no matter the size, must comply with building regulations. This is a change from the past where conservatories under 30 square meters were exempt. Compliance is especially important if your conservatory extension is going to be used as a kitchen. The “25% rule” is a key regulation, where any openings or glazing in the extension must not exceed 25% of the floor area. This is to maintain thermal performance, which is key to energy efficiency and comfort in the new space.
If your proposed kitchen extension is highly glazed and exceeds the 25% then a building regulations application is required. This process allows the extension to be assessed and verified against the existing thermal performance standards. As well as thermal performance building regulations cover many other aspects such as structural integrity, ventilation and sound proofing. Compliance with these regulations often involves working with professionals such as structural engineers or architectural technicians who can help guide the project to a safe and legal outcome.
Local regulations are important when planning your conservatory extension. Conservatories are generally covered by permitted development rights which means you can add to your property without full planning permission as long as certain conditions are met.
There are specific limits and conditions as to how big a conservatory can be and where it can be positioned in relation to the original house. The conservatory cannot cover more than half the land around the original house and cannot be higher than 4m. If a conservatory is built to the front of the house it cannot border a public footpath to remain exempt from planning permission.
Also the placement and size restrictions help to ensure the conservatory does not go beyond the side of your house or into public areas. There are stricter rules for semi-detached and terraced houses: the conservatory cannot go beyond 3m from the original rear wall for semi-detached and 4m for detached houses. Compliance with these regulations is key to avoid zoning conflicts.
While conservatories are often exempt from planning permission due to permitted development rights, exceeding the limits means you may need to get permits.
If the design of the conservatory goes beyond the permitted development rights or infringes local zoning laws then it will be classed as an extension and planning permission will be required. But as long as your conservatory respects your neighbours privacy and meets the size and height restrictions you can usually go ahead without formal permission.
In some cases even if your conservatory meets the criteria it may still require consent under building regulations. This is to ensure the structure is safe and meets the latest energy efficiency standards. It’s always best to check with your local council early in your planning phase; this will give you peace of mind and can avoid expensive fines or having to alter or demolish non compliant structures.
In general planning permission for conservatories is seen as a less scary and quicker process than for larger extensions. But always check with the local authority before you start building to be 100% sure.
To keep your conservatory looking and functioning well for years to come. To avoid costly repairs check the mechanisms of vents and windows to make sure they open and close smoothly, good air circulation and no moisture buildup. Trim the landscaping around your conservatory to keep the view clear and to prevent leaves, sap and other debris from accumulating which could damage the structure. By being proactive with your maintenance you will protect both the looks and functionality of your conservatory. Remember conservatories require an annual maintenance budget of £250-£600 so factor this in your planning. Also review your home insurance after the renovation to make sure it covers the conservatory so you have the financial protection you need for peace of mind.
To help you stay on top of your conservatory maintenance a seasonal schedule can be a big help. As the seasons change make sure all openings (vents and windows) are working correctly to allow good ventilation. Keep the area around your conservatory tidy by managing any plants that could drop debris onto the structure. Being proactive with these tasks will extend the life of your conservatory and make it an asset not a liability. Also remember to budget for ancillary costs like waste removal and structural reports. These will help prevent surprise costs and overall conservatory well being.
For long term care of your conservatory cleaning is key. The maintenance requirements will vary depending on the materials used and design chosen; so read the Care Maintenance Guide for full instructions on cleaning and maintenance. For maintenance beyond the cosmetic you will need to use skilled builders, electricians and plumbers to ensure the conservatory is sound and functioning. High quality materials will give long term benefits. High grade materials may cost more upfront but are more durable and will require less maintenance in the long run so your conservatory will be a feature of your home for years to come.
A conservatory kitchen extension combines functionality and style and adds a new dimension to any home. With at least two thirds of the roof glass the light pours in and it’s as good for morning coffee as it is for evening entertaining. Modern homes are embracing the conservatory kitchen and creating open plan spaces for dining, entertaining and more.
When designing the conservatory think about what the conservatory will be used for. Will it be a casual breakfast nook, a formal dining area or a social hub? Knowing the purpose of the conservatory will determine the size and layout of the extension. Of course budget will also play a part in the project with bigger extensions requiring more resources for construction and materials.
The conservatory roof is key to the overall comfort and energy efficiency of the space. Roof windows can add extra light and make the space feel more open. Patio doors can connect the conservatory to your garden or patio and flow from indoors to outdoors.
Architectural features like roof lights and large glazed walls can turn a ordinary kitchen into a kitchen that connects to the outside. These details bring the outside in and merge the exterior with the interior to give a kitchen experience beyond cooking.
Conservatories are all about natural light with their structure often being 75% glass. With that much light potential conservatories can bring new life to adjacent rooms and give them a glow. Glass roofs are proof of this philosophy, they flood the space with natural light and make it feel alive and open.
Having both glass panels and skylights in a conservatory will give you a flood of light and bring vibrancy to every corner. While other roofing options like tiles or slates may seem like a compromise the glass elements will still make the conservatory bright. This use of natural light doesn’t just lift the mood it creates an environment of elegance and inspiration.
The choice of glass roof is key to the ambiance of the conservatory extension and will give you a soft natural light environment. A design with transparent walls and roofs will create an almost invisible connection to nature and give you views of the garden or landscape and shelter from the weather.
Creating this indoor outdoor flow requires merging robust materials like UPVC and aluminium frames with various roofing options to give you many design possibilities to blur the lines between inside and outside living spaces. With modern advancements like insulated double or triple glazing you can enjoy these conservatory spaces all year round. These innovations combined with good design will give you an extension that not only looks great but also improves your lifestyle.
Summary
Conservatory extensions are a favourite among homeowners who want to add extra living space and bring more natural light and ambiance into their homes. Knowing the difference between conservatories is key to making an informed decision. Conservatories come in many styles, each with its own benefits and design options. For example a lean to conservatory is known for its simplicity and cost effectiveness while others may offer more intricate design and functionality.
A conservatory specialist like Danesfort can help you navigate the many options available and tailor the design to your project requirements. Whether you go for a traditional Victorian or modern minimalist look a specialist will make sure your conservatory extension matches your home and meets your needs.
When you are planning a conservatory extension you need to consider if you need to put in a planning application. Depending on the size and design of the extension planning permission may be required. Knowing this early on will avoid delays and make the process smoother.
A conservatory extension gives you valuable extra living space that can be used for many things from relaxing with the family to entertaining friends. By exploring the different design options and working with a knowledgeable conservatory specialist you can create a space that adds to your home’s functionality and style and blends in with the rest of your living areas.
Choosing the right builder is key to a successful home extension. At Danesfort we deliver quality on time and on budget. We have extensive experience working on home extensions in the London area.
Danesfort ensures all projects comply with planning permissions and building regulations. We offer clear contracts that outline scope, timelines and payment terms so you’re fully informed from start to finish.
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