HOUSE EXTENSIONS – WHAT CAN YOU ACHIEVE WITHIN YOUR BUDGET IN 2020?
If you are thinking house extension in the near future, then it is wise to do some research and explore the various possibilities and varieties of house extensions available to you, and ones that satisfy your specific budget constraints.
We have compiled suggestions from our experience and expertise in this guide to allow you to assess which type of alterations and extensions will suit you best.
Maybe you want a house extension on a budget of £15,000? or maybe you are spilling out on an extra-large house extension with large budgets of £150,000 or upwards?
Maybe you’re looking for something simple and elegant to do the job? Probably a simple single storey home extension taking out the kitchen area into the rear garden with bi-fold doors and opening up internal space to give a modernist angle to your property.
OR PERHAPS YOU FANCY SURPRISING YOUR GUESTS WITH EXTRAVAGANT DESIGN AND ITALIAN MARBLE?
This guide will touch up on many possibilities with real world projects which we are working on at present.
Doing therefore can permit you to pay your accessible budget showing wisdom, and to use your home to its full potential. And you’ll still add important worth to your property within the current climate if you choose the proper project.
HOUSE EXTENSIONS FOR EVERY BUDGET BETWEEN £20,000 AND £30,000
The range of house extension vary from one another. The important thing is the extension should not only be in your budget but also be able to meet your needs.so these fall in the category of house extension for every budget between £22,000 to £33,000:
1. A SIMPLE ROOM-IN-ROOF LOFT CONVERSION
Loft conversion with a typical 89m² three-bedroom terraced house will cost around £1,000 per m², depending upon the area you are living in. with this anew space will be created measuring 22 to 28m². this is adequate space for a standard double bedroom extension with a small shower room suite. This project will come under the permitted development rights and no planning permission is required; the work will also comply with building regulation. This is the job of the professional building contractor or of the loft design and builds a company. Find more about the planning and designing of the loft conversion in our guide
Loft conversions in a typical 89m² three-bedroom terraced house would cost from around £1,000 per m², depending on where you live. This will create a new room measuring 22 to 28m². This is enough space for a good-sized double bedroom extension, possibly with a small en suite shower room.
Such a project would likely be covered by permitted development rights and so would not require planning permission, though the work would have to comply with building regulations. This is a job for a building contractor or specialist design-and-build loft company. Find out more about planning and designing a loft conversion in our guide. Discover how to plan an en suite bathroom in our dedicated guide, too.
2. AN ABOVE-GARAGE ROOM EXTENSION
An extension can be built over the grange in our house extension for every budget between £22,000 and £33,000. This extension is more cost-effective than building a new extension on the ground floor for which new foundations will be made. But for the garage extension, the existing foundations can take the load (an engineer or surveyor can advise ) for this project you will need a contractor or a designer. The good thing about this Extention is, no graden space or green space is sacrificed. You will need planning permission from the local planning department with application fees of ( £189.2 ).c Building regulations will be considered. A 17m² extension above a typical attached single garage would cost £990 to £1,650 per m².
House extensions for every budget between £20,000 and £30,000 can include building an extension over a garage that’s already there. It is more cost-effective than building a new ground-floor extension, providing the existing foundations can take the load (an engineer or surveyor can advise).
You’ll also need a designer and contractor. An added bonus is that no garden space is sacrificed, but in most instances, you will require planning permission from your local planning department, with the application fee costing £172. A 17m² extension above a typical attached single garage would cost £900 to £1,500 per m². Building regulations would apply, of course.
3. A CONVERSION OF AN INTEGRAL GARAGE
If you can’t afford an extension the most effective way is to look at the reworking space you have. If you don’t use your garage so, you can change it in an habitant room which can be utilized for certain activities. You will pay between £5,500 and £7,700 depending upon the specifications i.e £1,100 to £1,375 per square metre. If the structure is stable i.e the walls and the floor, there is a water-light roof and we have clear headroom around 2.2m to 2.4m after building up the floor by 15cm above the external ground level. Garage conversion design fees range from £1,320 to £2,750, plus £330 to £440 for a structural engineer. A typical garage conversion will cost around £18,810 to £26,290 plus VAT, depending on specifications. if the house needs structural repairs because the structure is not integral as it is attached to the house. In this situation, the most cost-effective way is to demolish and replace it.
If you don’t have the budget to create the extension you want, a more cost-efficient way to get the rooms you need is to look at reworking the space you have.
If you rarely use your garage and parking isn’t at a premium where you live, it may be worth creating another habitable room by converting your garage.
You can expect to pay between £5,000 and £7,000 upwards (depending on spec); that’s around £1,000 to £1,250 per square metre – if the walls and floor are stable, there is a watertight roof, and the ceiling height is sufficient to leave around 2.2m to 2.4m of headroom after building up the floor by 15cm above external ground level.
Design fees for a garage conversion range from £1,200 to £2,500, plus £300 to £400 for a structural engineer. A typical single garage conversion (18 square metres) would cost around £17,100 to £23,900 plus VAT, depending on specifications.
If the structure is attached to the house, rather than integral, and needs structural repairs, it may be more cost-effective to demolish and replace it.
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4. A SINGLE-STOREY SIDE OR SMALL REAR EXTENSION
If you want to add some extra living space in your house than a single storey extension is perfect for you which will improve your lifestyle.so if you are considering a side extension or a rear extension (read our guide). With these extensions, we can create an open living a dining space or a part of the kitchen which will make it a perfect family space and of Couse, these types of spaces are loved by potential buyers. House extension for every budget between £22,000 and £33,000 will only sufficient to build a new single-storey extension of around 20m², at the cost of £1,155–£1,595 per m². this space is sufficient to add or extend a room or make it a part of the home office or in any useful space. These types of extension come under permitted development rights.
A single-storey extension is a perfect way to create extra living space in your home while transforming your space to better suit your lifestyle. Whether you’re considering a side return extension (read our guide to find out more) or a rear extension, it’s the perfect spot for a new, open plan living, kitchen and dining area that make for perfect family spaces and, of course, are so beloved by potential future buyers. House extensions for every budget between £20,000 and £30,000 would only be sufficient to build a new single-storey extension of around 20m², at a cost of £1,050–£1,450 per m². This would be sufficient space to extend an existing room or to add a good-sized home office or utility room to your house. Most such extensions would be covered by your permitted development rights.
5. A CONSERVATORY OR ORANGERY
Conservatories and orangeries come in all semblances. From contemporary to period style or classical style building. Only a person with £33,000 budget will be able to afford it. most people hire a conservatory or orangery design and build company, but through DIY basic you can do it and save money.
DIY orangeries can cost it around £3,300. These come in standard designs, ready to install by or by the builder you hire. However, the conservatories and orangeries companies offer tailor-made designs with different ranges which are lower to mid-range starting from £11,000 to £16,500. Find out how to plan a conservatory and how to add an orangery.
Conservatories and orangeries come in all guises, from period-style to more contemporary builds, and the more affordable end of the market is well within the reach of someone with a budget of up to £30,000. Most people will hire a conservatory or orangery design and build company for ease, but you can do it on a DIY basis to save money.
DIY conservatories can cost as little as £3,000, and come in a range of standard designs, ready for installation by you or your builder. Bespoke conservatory or orangery companies offer tailor-made designs, with lower to mid-range styles costing from £10,000 to £15,000.
6. A GARDEN ROOM
When you have room for the extension and u need more space than the garden room is the best option. A garden room will solve the space issues and it can be a home office a sitting space a movie room or it can be a fine outdoor dining area and you can also enjoy the green surroundings. The cost of the garden room vary according to the sizes., the quality of the material used,m it’s a modular design or not, the doors and windows specs, interior and exterior finishes of the room and the most important the level of insulation required. If you want a modular kit it will range between £2,200 and £33,000 and for a completely bespoke building, an amount between £880 and £1,760 per square metre .you can have more details in our guide about building a garden room.
Building a garden room is a great solution if you need more space but have no room for an extension near the house. A room in the garden might solve all your space problems, be it a home office or cinema room. You could also use it as a home gym, hobby room or children’s playroom. Or maybe it’s for outdoor dining when the weather’s cooler or a sheltered spot to enjoy the garden from? Garden room costs vary according to their size; whether they are modular or bespoke; the quality of the materials used; the doors and windows specified; the level of insulation required, and the interior and exterior finish.
For a modular kit, expect to pay anywhere between £2,000 and £30,000. For a completely bespoke building, expect to pay between £800 and £1,600 per square metre.
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HOUSE EXTENSIONS FOR EVERY BUDGET BETWEEN £30,000 AND £50,000
These house extensions include loft conversions garage conversions or even basement conversion, large single storey conversions and a two storey extension. We are going to show you some great extension examples for every budget between £33,000 and £55,000.
This will comfortably allow you to create a substantial house extension including loft conversions, garage conversions or basement conversions, large single-storey extensions and even a modest two-storey extension. Here, we also show great examples of house extensions for every budget between £30,000 and £50,000.
7. A LARGER, ORANGERY-STYLE REAR EXTENSION
An orangery is designed in a traditional style housekeeping with the period house and measuring 30m²,it will cost between £1,375 and £1,595 per m² it also depends on the location. A room of 4mx7m is great for dining and sitting room. No planning permission is required as it falls in the permitted development rights in most cases.
A traditional-style house extension option, an orangery is designed to be in keeping with a period house and measuring 30m², would cost between £1,250 and £1,450 per m² depending on location. A room measuring 4m x 7m would be ideal for a dining or sitting room and, in many instances, would fall within permitted development rights and so not require planning permission.
8. A LOFT CONVERSION WITH BEDROOM AND BATHROOM SPACE
Loft extension gives you the best returns on the investment as well as it adds some useful living space. The loft conversion mostly comes under permitted development rights.
The cost will be different for different sizes but you can have this type of extension between £33,000 and £55,000. Conversion with a rear dormer in a mid-terrace property will cost around £38,500. The large companies are 10% to 15% expensive than the smaller companies.
As well as offering valuable extra living space, loft conversions give one of the best returns on investment you can get when it comes to extending.
And because most loft conversions are generally allowed under permitted development rights, there’s no need to go through the lengthy process of obtaining planning permission.
The cost will vary depending on size, but you can expect to achieve this type of house extension for every budget between £30,000 and £50,000. A typical conversation with a rear dormer in a mid-terrace property costs around £35,000. You’ll find small companies will usually charge 10 to 15 per cent less than large companies.
9. A DOUBLE GARAGE CONVERSION FOR EXPANSIVE LIVING SPACE
A valuable living space can be added in an attached double garage measuring 28m². then we will make it a part of the house by removing the partition wall and also replacing it with an RSJ which will add around £5,500.if we to make it a kitchen new units will be installed and an amount of approx. £5,500 will be added depending upon the kitchen supplier. This conversion comes under permitted development rights. building regulations will be followed.
An attached double garage measuring 28m² could be turned into extra living space at a basic cost of £850 to £1,050 per m². To then integrate this space into the existing house by removing the partition wall – replacing it with an RSJ – add around £5,000 to the cost. If space were to become a new kitchen, the cost of new units must also be added at around £5,000 upwards, depending on the kitchen supplier chosen. Your permitted development rights mean a garage conversion will not usually require planning permission, but it must comply with building regulations as the project would constitute a material change of use.
10. A CELLAR CONVERSION FOR ADDED LIVING SPACE
With an estimated cost of £935-£1,155 per m², valuable living space can be added in an existing cellar measuring around 35m².which can be used a home office or as a playroom. Damp-proofing and insulation is also included. An additional amount of £4,400-£5,500 will be charged when adding new windows or lightwells. This conversion comes under permitted development rights. building regulations will be followed. You can have more information about it in how to convert a basement or cellar.
An existing cellar measuring around 35m² could be converted into an additional living room or home office at a cost of around £850-£1,050 per m², including damp proofing (a tanking membrane) and insulation.
Adding a new lightwell and window would cost an additional £4,000-£5,000. Cellar conversions come under permitted development rights but, as above, this is a material change of use.
11. A SIDE RETURN EXTENSION TO EXPAND A KITCHEN
Useful living space can be created by using the unused or underused garden through side return extension. by doing this we can create a bigger room or a kitchen +dining area.it will have the characteristics of a terraced house i.e. more light is coming in the interiors with large roof lights panels of glazing and French bi-fold or sliding doors.it will cost around £1,155 to £1,595 per m², but keep in mind one thing that the glazing windows will increase the cost. You can have more information about planning a side return extension in our guide
A side return extension is a good way to incorporate often unused or under-used garden space into your home, creating a much larger, open-plan room that’s ideal as a kitchen diner living space combined. This type of extension is also the perfect opportunity to bring more light into what is usually a terraced house, with large roof lights, panels of glazing and French, bi-fold or sliding doors creating a bright, contemporary home.
Budget for £1,050 to £1,450 per m², although bear in mind that large expanses of glazing will bump up the cost significantly.
12. A SMALL DOUBLE STOREY REAR EXTENSION
A single storey house extension of 30m² to 40m² will cost around £1,155 to £1,595 per m² with this we might be able to extend it to 4 m across the back of the semi or detached house with a pitched or flat roof. this will create a great space for a large open plan kitchen + dining. A design of glazed units like the floor to roof windows or folding windows will cost £1,980 to £2,420 per m² if you want to do the work in the same budget the scale of the project will be reduced around 23m². This extension side or rear fall under the development rights. Building regulations will be followed.
This level of outlay could be sufficient to create a substantial single-storey house extension, 30m² to 40m² – budget for £1,050 to £1,450 per m².
This might be enough to extend by around 4m right across the back of a typical semi or detached house, with either a flat or low-pitched sloping roof – as a single storey or side return extension, both ideal for creating a large open-plan kitchen-diner.
A contemporary design with folding-sliding doors, glazed roof lanterns and large floor-to-ceiling glazing units would cost £1,800 to £2,200 per m², so on the same budget, the scale of the space may need to be reduced to around 23m².
Many single-storey side extensions and rear extensions will fall within your permitted development rights, which will help keep costs down somewhat, but always check. And building regulations will apply. Don’t forget to add on professional fees, and to calculate interior fit-out costs carefully.
13. AN EXPANSIVE DOUBLE STOREY HOUSE EXTENSION
The double-storey house extension is more effective than the single storey house extension because in the double-storey two floors are built on the foundation rather than one floor which is cost-effective. The expansion on the rear side will create bedrooms or big kitchen with room above about it or a bigger living area with the inside-outside connection. If the projection is for 4m from the rear side than it will come under the permitted development rights but the planning consent is required for the two-storey building. Building regulations will be followed.
More cost-effective than a single storey house extension because it doubles up on the use of the foundations and roof – two of the most expensive parts of a build – a two-storey extension on this budget could measure up to 30-40m² (both floors). At the rear of a property, this would typically extend the kitchen with a new bedroom above.
Many such extensions projecting no more than 4m from the rear of the original house are covered by permitted development rights, but a two-storey side extension will require planning consent – and don’t forget building regs.
14. AN EXTENSION FOR A BUNGALOW TO MAKE IT FAMILY-SIZED
If you want to extend a bungalow or if you want to join buildings together irrespective of the style, it is contemporary or classical, a glazed walkway can be placed. Which can be incorporated in both the contemporary or in classical. Glazed walkways can be provided if the building is in a conservation area.
Whether you’re looking to extend a bungalow or want to join two distinct buildings together, – perhaps the original house and garage conversion – a glazed walkway can be a very successful and cost-effective way to do so. Whether your home is modern or traditional, a glazed walkway can be a great solution to planning restrictions on period properties, or homes within conservation areas – a listed building for example –, where a solid link would be inappropriate or not permitted.
15. AN INVENTIVE, PRACTICAL SINGLE STOREY EXTENSION
If you want an inventive single-storey extension then you should go for the basic or local materials and try to do some work by yourself. in this we can make it affordable and cost-effective. It doesn’t mean that my doing we will restrict our design. No, we can create innovative and practical space with these materials too. Architect Henry Smith of Studio Mesh and his brother Alec did most of the construction work by themselves in the 1900s .it was a 77sq m two-bedroom house for just £43,450.
Using basic building materials is a great way to keep costs low and if you can do some of the work yourself, all the better. That doesn’t mean placing limits on the design, though. The striking exposed scissor truss timber roof of this brick extension, which was built by hand on-site using standard materials, is topped with a green sedum roof.
HOUSE EXTENSIONS FOR EVERY BUDGET FROM £50,000 TO £90,000
Win this we will give examples of large-scale extensions between £55,000 and £99,000: when a big amount is present then we can also do greater or bigger extensions like the double storey or basement extension.
With more money, you could achieve larger scale extensions, such as double storey additions, or you could take on a unique build to totally transform your home life. Perhaps a large loft conversion, a kitchen extension, a stand-out glazed extension or a basement conversion. Here, we take you through house extensions for every budget between £50,000 and £90,000:
16. A KITCHEN EXTENSION WITH SPACE FOR LOUNGING TOO
In a floor plan through a simple change, we can build a kitchen extension in which the natural light will be incorporated and addition of appliances will make life easier. If we an adequate space than our aim should be restricted to the kitchen and but it should also focus on improving the living area by providing foldable windows or French doors. the cost will depend upon the work and quality. But for a reference, it will be around £1,320 to £3,300 per m² and upwards for building work; £19 to £220 per m² for a new kitchen.
Building a kitchen extension is the perfect opportunity to improve the entire ground floor of your home, with a simple change of layout, the introduction of natural light and the addition of appliances that could make your life easier. Plus you can expect this type to fit into the house extensions for every budget between £50,000 and £90,000 category in many parts of the country, with the exception, potentially of London.
If you have space, plan to create an enhanced room that doesn’t just include kitchen and dining areas, but zone for lounging, too. It’s also really worth maximizing the connection of the new room to the garden with bi-fold, sliding or French doors.
Prices will vary depending on the work you carry out, but as a guide, plan for between £1,200 to £3,000 per m² and upwards for building work; £17 to £200 per m² for a new kitchen. Find out more about kitchen extension costs in our dedicated feature. And discover all you need to know about building a kitchen extension in our guide.
17. A LARGE LOFT EXTENSION TO EXPAND YOUR BEDROOM COUNT
If we convert the existing roof by the loft expansion on the semi-detached house it will cost £935 to £1,595 per m². by doing this we can add a bedroom with washroom and also kids playing room or a bedroom suite it depends on the requirement. Loft extension comes under the permitted development rights. But if we have large conversion in which a window is placed facing highway than the planning department approval is needed. Building regulations will be followed. You can have more information about converting a loft in our guide.
Two storey side or rear extensions are more cost-effective than single-storey extensions, coming in at around £1,320 to £1,620 per m² for a standard build, so with this budget, you could extend by at least 35m² – sufficient space to add a large kitchen and/or living room extension on the ground floor, with two new bedrooms and a bathroom above.
A large two-storey extension is likely to require a planning application, so approach your local authority about this and for its advice on building regs.
Extending the loft on a large semi-detached house and converting the existing roof space will cost £850 to £1,450 per m² and, at this budget level, you could add two good-sized bedrooms and a bathroom, or one very generous master suite with dressing and shower rooms.
In England, quite substantial loft conversions are still covered by permitted development rights. Larger conversions and those involving the addition of a window facing the highway will require planning consent. Building regs apply to all work. Use our guide to converting a loft to find out about all the practicalities involved.
18. A VALUE-ADDING DOUBLE STOREY SIDE OR REAR EXTENSION
when we talk about cost-effective extension than the two-storey extension is preferred on the single storey, which ranges from £1,452 to £1,782 per m² for a standard build. In this budget, we can extend up to 35m², which will add sufficient space i.e. big living expansion on top it 1 master bedroom suite. There are several possibilities. These kinds of large extensions require a planning application.
Two storey side or rear extensions are more cost-effective than single-storey extensions, coming in at around £1,452 to £1,782 per m² for a standard build, so with this budget, you could extend by at least 35m² – sufficient space to add a large kitchen and/or living room extension on the ground floor, with two new bedrooms and a bathroom above. For these extensions, local authorities will be engaged for the building regulations. You can have more information about planning, designing and costing a double-storey extension in our guide.
Two storey side or rear extensions are more cost-effective than single-storey extensions, coming in at around £1,320 to £1,620 per m² for a standard build, so with this budget, you could extend by at least 35m² – sufficient space to add a large kitchen and/or living room extension on the ground floor, with two new bedrooms and a bathroom above.
A large two-storey extension is likely to require a planning application, so approach your local authority about this and for its advice on building regs.
19. A LARGE SIDE RETURN EXTENSION
It is a classical way of the extension of a Victorian or another house. The extension is done by filling in the alley along with the kitchen etc. depending upon available space. In this, we have to create a balance between the internal space without eliminating to much green space. And we have to make sure that there is balance in the house like we create a grand living and doesn’t have adequate bedrooms on the first floor of the house. We can also have loft extension with the side return extension this type of build will involve opening both the rear and sidewall of the kitchen at the back of the house. Inserting steel beams and create a connection between the new and old space. If the extension is limited to the single-storey then it will come under the permitted development rights in England, but if the extension is on two storeys then you need planning permission from the planning department of the area you live in. building regulations will be followed.
A side return extension is a classic way to enlarge a Victorian/Edwardian semi-detached or terraced house; some of these extensions go straight out to the side, across the full width of the property, filling in the alley alongside the kitchen; others go sideways and outwards; where space is available, side return extensions can even be combined with a second-storey extension above the original kitchen, creating an additional bedroom.
The trick to creating a successful side return extension is to find a balance between enhancing the internal space without sacrificing too much garden. It’s also important to ensure that the house doesn’t become unbalanced, with a large living area downstairs but few bedrooms upstairs. For this reason, it’s worth considering a side return extension in conjunction with a loft extension.
20. A GLAZED EXTENSION
In a budget of £55,000 and £99,000, a glass extension is a good option. It gives a modern look and gives an impressive look. It also adds beauty to the building or a house.it will cost around £3,300 to £4,400 per m².in this range an extension of 15 to 20m² can be done. This space is enough for a living room and a small kitchen.it is recommended that for these kinds of projects hire a specialist. Building regulations will be followed. You can have more information about planning a glass extension in our guide.
If you’re looking at house extensions for every budget between £50,000 and £90,000, you might like to consider a glass extension. This extension type can look very impressive and can work with any style of building, including period homes, but can cost £3,000 to £4,000 per m². A large budget should be sufficient to pay for an extension measuring 15 to 20m², however, enough for a small dining or living room at the back or side of a property. Because of the specialist engineering involved, it is perhaps best to hire a specialist design-and-build firm – try GlasSpace or IQ Glass. They will handle building regs; a small extension is unlikely to require planning consent. Find out more about planning a glass extension in our guide
21. AN EXPANSIVE BASEMENT CONVERSION
Basement conversion is always an expensive thing to do, but in high value area with limited options it’s the best one. It will generally cost around £3,300 to £4,400 per m² including light wells.in this range an extension of a 15 to 20m² can be done.. it can be office a gym or a cinema room and for any other activity. You can have more information about converting a basement in our guide.
