single storey rear extension

Rear Extension Ideas Single Storey

Extensions offer a great solution when it comes to improving your home or expanding the existing space. With a rear single storey extension, you can significantly increase the value of your property. It is the most common type of extension for most homes.

Rear extensions are a good way to create more open space, especially for Edwardian and Victorian properties. If done well, it is also a great way to introduce good lighting to a room.

Depending on the available space, a rear extension can completely transform the nature and design of your home. Rear extension ideas might include the following:

  • Internal alterations such as opening your kitchen to your back garden or creating an open plan area to be used as a combined kitchen, dining and living area.
  • Increasing the space of various rooms.
  • Modifying how you utilise the interior floor space.
  • Garage conversions to either a dining area, open plan kitchen or a utility room among others.
  • Replacing existing rooms with additional space filled with natural light.

As a homeowner, there are several things that you have to put into consideration before deciding on making any improvements to your home. Consulting with an extension specialist is one of the things you have to do. This will help you to know whether your house extension design idea is realistic and can be implemented.

Consulting will also help you in determining the approximated budget for the extension. It is also important for you to know whether the improvements you are about to undertake in your home are legal or not. It will help you avoid any hindrances or delays when the construction begins

Permitted development

Before making any significant improvements in your home, you need to be well informed on the rights that permitted development grants you. These rights allow you as a homeowner to have changes on your property without having to apply for any planning permission.

You should consult with your local authorities or a qualified surveyor for you to know whether your proposed project qualifies as a permitted development before any work is done on it. The location of your property is also important when it comes to determining your permitted development rights.

Your rights tend to be restricted if your house is built in a conservation area. Most of the times you find that the local planning authorities in such places intend to maintain the look and feel of the said area, hence the limitations.

It is also essential for you to note that the permitted development rights are not applicable when it comes to flats or maisonettes. This is mainly because of any impact the altercations may have on the neighbouring buildings.

With the current regulations in place, you can have larger single storey extensions for either a semi or a terrace house. The storey extension can include a side extension of up to half the width of the existing structure.

glass roof extension

Roof options

When it comes to rear extensions on houses, there are several design ideas that one can implement. Depending on whether it’s a loft conversion, garage conversion, terraced house extension or a kitchen extension among others, we have several extension design ideas and roof ideas that you may consider.

For instance, if you have a large garden space, you might consider having a garden room. It would be a great way to utilise all the extra space. A kitchen extension is also an option if you are in need of an open plan kitchen space or a dining room.

If you are planning a single storey rear extension for your home and there happens to be inadequate space for a window, you can opt for the roof windows. Apart from allowing light into the house, it will also be a creative way to utilise the available roof space. Most people tend to opt for the glass extensions for their home extension because it allows natural light into the room.

If you want to achieve an orangery design with your single storey rear extension, then a glass roof is what you should go for. A roof lantern is also an ideal option for house extensions if you want the room to be filled with natural lighting. You should ensure that there is automatic ventilation so as to avoid the room overheating.

Another option you can consider is the flat roof extension. With this type of roofing, you can have a roof terrace extension. There is also the option of having a ground terrace for your home if you want an additional seating area or a beautiful garden view.

single storey extension

Can I build on top of a single storey extension?

In most cases, this is possible although there are several things you will have to consider. These things include:

  • Whether you’re in a conservation area.
  • Is the building listed?
  • Do you have the planning permission to go ahead with your construction? This may be challenging especially when you want to build on top of an already existing extension.
  • Whether the foundation is strong enough to accommodate an additional floor. Will it need to be reinforced or to be replaced?

These are some of the things you need to consult your local authorities and a qualified architect about before deciding whether to build an additional extension house on an existing single storey extension. Of most importance is abiding by the building regulations to avoid any demolitions amid the construction of any extensions house.

How much would a single rear storey extension cost?

A single storey rear extension can cost anything below £100 000 to above £300 000. The amount of work to be done is one of the determinants of the cost for the single storey extension. Another determinant is the type of materials used for extensions to houses. Individuals may opt for different building materials depending on their single storey extension ideas and design.

A home extension that is small costs less as it needs less time to complete as well as a few materials. This might cost between £20 000 to £30 000. There is also the option of conservatory extension if you find the rear storey extension too costly.

Using materials such as uPVC, timber and aluminium makes the conservatories cheaper than the rear extensions with the overall cost ranging at around £15 000. With everything put into consideration including the home design and decor, we have reasonable prices for our services.

rear kitchen extension

Do I need planning permission for a single storey extension?

Applying for planning permission can be quite a hectic and time-consuming process. There are several home extension ideas that you can implement with permitted development only. In other circumstances, you cannot proceed with construction or any storey extensions or renovations without approval.

Projects such as installing rooflights, changing your cladding, kitchen extension, side extension, garage conversion among others can be completed with implied consent. The several circumstances where you will need permission before starting any construction include:

  • If the building you intend to do the single storey rear extension is listed.
  • If you have previously already made considerable alterations to your home.
  • If you live in a designated or conservation area.

Most storey extensions can be done with permitted development although it’s always good to confirm with your local authorities first. Single storey extension ideas such as kitchen extension may be possible with the implied consent as long as the design doesn’t increase the overall footprint of the structure. You also have to keep in mind that interior design is crucial when it comes to single storey rear extension for homes. We provide all these and so much more at a considerable cost.

Building a room

Need help to build an Extension?

To find out how we can help you to extend your home contact us today. We’re here to answer any and all questions related to extensions. You may book a time that’s best for you with one of our experts to come to your London property to discuss your plans.


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Author: Clara Annesley

Clara is a blogger at Proficiency. She has a background about extensions, conversions and interior design.