House extension cost
How much does a house extension cost
You may think you know how much a house extension will cost, but it can heavily depend on many factors. How big is your project? What type of building are we expanding from and complexity of the construction? Is the area that you live in expensive and high-end or a more affordable and low-key area? Do you prioritise build quality over features like fixtures and fittings for a property when designing your home extension? Or if you try to save on materials and maybe find out later that these inferior building products were not up to the job and you have to spend more of your budget putting them right. This can also be said about the builders you choose, I would always question why a builders quote is very low cost, could it be that they are using cheap labour or sub par materials. Remember, buy cheap, buy twice! You pay for what you get, always insist on seeing your potential builders previous work beforehand selecting them to complete any work for you. We have a small guide below on the prices we think are about average for Nottingham and the surrounding area, as i said this is only a guide as there are so many things to take into account first.
With the escalating costs of moving house that shows no indications of slowing down, it’s very understandable that lots of people are choosing to go down the route of having an extension built onto their existing property as opposed to buying another home. But if you are like most people I know that have really settled in your current home as you have modelled it just the way you like it, including the garden, and love your surrounding area and neighbours, then why move? Your solution is a house extension or garage conversion, this option will work out to be a much cheaper cost, and a lot less hassle than moving. Why move when you can improve what you already have, make sense? Then read on!
The first decision that you have to decide upon, is on the type of extension you want to have constructed. By asking yourself, what will be your end goal, what do you want to achieve by building new space, what will you use it for? To expand your kitchen, add another bedroom or just give your growing family more living space on the ground floor. A bit of forward planning will pay dividends in the long run and literally save you money on costs.
Types of house extensions
Single storey extension prices
The most popular choice of home extensions that our customers most enquire about is the single-storey extension on their ground floor. These can be built and added to a home in all sorts of shapes and forms, including a simple rear extension, a side return extension, or a wrap-around extension. Prices for the one storey type of house extension can vary quite a bit and be anything from £1,250 per m2 and up to around £2,000 m2 for the local Nottingham area, this will obviously take into account your building requirements, things like construction quality, size, and the amount of building and finishing work your builder is requested to do during the progression of your extension project. You can save money on the initial build by just having the shell built out and complete the other work when you like or when the funds allow. If you go straight ahead for a fully completed extension with all the internal fixtures and fitting, and right down to the decorating, then all this will be dependent on what you would like to achieve, maybe a new kitchen, bathroom, bedroom or just extra living space. All these different factors can affect the overall cost of your extension. Also, you need to think about planning permission costs, architects, structural engineers and any other professional services. It could be that your particular house extension comes under the “permitted development” agenda, but you will still need to have “building regulations” involved. There is an added cost of VAT to consider that is currently at 20% and building materials are forever on the increase due to the COVID situation and supply, plus waste disposal is an ongoing cost to consider.
Two-storey extension
It’s a typical misconception about the value of two-storey extensions coming in much cheaper than your one-storey-house extension project. Once you take everything under consideration the added costs for scaffolding and extra costs for electrics, plumbing etc, then the square m2 price is justified to be around the same and not too far away from the square m2 of a single-storey extension. It is true that savings can be made through the roof construction, as indeed a one storey or two-storey building will only need one roof. But I will confirm what any builder will tell you, that it’s much more difficult to tie in the 2nd storey roof to the existing building as opposed to the construction of a new 1st storey roof. So in my opinion and experience, it ends up an add and omit exercise that most often levels out the per square meter m2 price pretty much on level terms.
What do you plan to achieve with your new extension, a kitchen, bathroom, bedroom with ensuite, or just to create more all-round living space
The overall cost of your new house extension would be very dependent on the internal set-up and use of the building. If the new living space is going to contain a new Kitchen or Bathroom installation then either one of these purchases doesn't come cheap these days. and they can add a large amount of extra cost to your extension project, depending on the quality that you go for in your home. A modern standard bathroom would probably set you back around the 5k mark and a simple kitchen around 10k, but these prices are only estimates and prices can certainly escalate quite substantially as you look into these luxury bespoke kitchens and bathrooms that are on the market today.
Basement Conversion Prices
Have you ever considered the option of a basement extension? These types of conversions can certainly add much-needed space, especially if you are limited on space to build out externally. As you can imagine there will be a need to excavate below your property to create the area needed for the conversion. The price of basement conversions can be quite pricey and come in at around 3k to 4k thousand pounds per square meter m2. If this interests you, then you might need to check first to see if your home is suitable for this type of basement conversion. My advice is to find an architect that is experienced in this type of work, as planning permission can be troublesome, another cost I know, but their guidance could be an important factor. Basements are not the easiest of contracts for a builder and they can incur extra expense along the way if difficulties arise.
Garage conversions and prices.
Converting your garage can be a great solution to add an extra room to your existing property and the ideal way to make use of the unused space. A garage conversion usually comes under the “permitted development” so rarely needs a planning permission application, but please don't take my word for it, always check with your local planning authority department first. Integral single and double garage conversions will be the most cost-effective options at around £600 per m2, this will depend on the internal fixings and fittings as normal. These integral garages are most likely close to existing electrical and plumbing works, which also makes a garage conversion a cheaper option than a new extension. This is because the shell structure is already present, which makes the conversion a lot faster to construct than building your standard extension.
Are there any other aspects that could affect the cost of my new house extension?
Access to the site
Site access can be a significant factor to consider when executing your project. If the site is narrow or awkward then there may be additional costs associated with storing building materials and machinery on-site, as well as how you order those goods in advance of construction. It's important to plan ahead so that everything will fit! Construction sites are not always located close together: if yours happens to reside down one of many congested city streets or along an already-tight country lane without room for HGV (or lorry) deliveries, it’s time to think about using smaller delivery vehicles as they tend to cost more than trucks but less than cranes.
Planning area and building materials
Builders are often restricted by location and the materials they have at their disposal. For example, if you're in an area where planners dictate what building materials you need to use, it can be difficult to find a material that matches your style or desired aesthetic for homes like extensions on existing properties with sensitive features such as genuine handmade bricks or natural stone just don't come cheap either; construction costs may increase up to three times depending on which one is used.
Groundwork and soil type
What type of soil is on the property that you want to build your extension? This may determine what types and quantities of building materials that can be used. The ground also determines how much load-bearing weight a house will need in order not to sink into it, so this should always be considered a priority before the construction process begins.
You may think you know how much a house extension will cost, but it can heavily depend on many factors. How big is your project? What type of building are we expanding from and complexity of the construction? Is the area that you live in expensive and high-end or a more affordable and low-key area? Do you prioritise build quality over features like fixtures and fittings for a property when designing your home extension? Or if you try to save on materials and maybe find out later that these inferior building products were not up to the job and you have to spend more of your budget putting them right. This can also be said about the builders you choose, I would always question why a builders quote is very low cost, could it be that they are using cheap labour or sub par materials. Remember, buy cheap, buy twice! You pay for what you get, always insist on seeing your potential builders previous work beforehand selecting them to complete any work for you. We have a small guide below on the prices we think are about average for Nottingham and the surrounding area, as i said this is only a guide as there are so many things to take into account first.
With the escalating costs of moving house that shows no indications of slowing down, it’s very understandable that lots of people are choosing to go down the route of having an extension built onto their existing property as opposed to buying another home. But if you are like most people I know that have really settled in your current home as you have modelled it just the way you like it, including the garden, and love your surrounding area and neighbours, then why move? Your solution is a house extension or garage conversion, this option will work out to be a much cheaper cost, and a lot less hassle than moving. Why move when you can improve what you already have, make sense? Then read on!
The first decision that you have to decide upon, is on the type of extension you want to have constructed. By asking yourself, what will be your end goal, what do you want to achieve by building new space, what will you use it for? To expand your kitchen, add another bedroom or just give your growing family more living space on the ground floor. A bit of forward planning will pay dividends in the long run and literally save you money on costs.
Types of house extensions
- Two storey extensions
- Single storey extensions
- Side return extensions
- Wrap around extensions
- Basement conversions
- Garage conversions
- Bungalow extension
- Bathroom extensions
- Kitchen extensions
Single storey extension prices
The most popular choice of home extensions that our customers most enquire about is the single-storey extension on their ground floor. These can be built and added to a home in all sorts of shapes and forms, including a simple rear extension, a side return extension, or a wrap-around extension. Prices for the one storey type of house extension can vary quite a bit and be anything from £1,250 per m2 and up to around £2,000 m2 for the local Nottingham area, this will obviously take into account your building requirements, things like construction quality, size, and the amount of building and finishing work your builder is requested to do during the progression of your extension project. You can save money on the initial build by just having the shell built out and complete the other work when you like or when the funds allow. If you go straight ahead for a fully completed extension with all the internal fixtures and fitting, and right down to the decorating, then all this will be dependent on what you would like to achieve, maybe a new kitchen, bathroom, bedroom or just extra living space. All these different factors can affect the overall cost of your extension. Also, you need to think about planning permission costs, architects, structural engineers and any other professional services. It could be that your particular house extension comes under the “permitted development” agenda, but you will still need to have “building regulations” involved. There is an added cost of VAT to consider that is currently at 20% and building materials are forever on the increase due to the COVID situation and supply, plus waste disposal is an ongoing cost to consider.
Two-storey extension
It’s a typical misconception about the value of two-storey extensions coming in much cheaper than your one-storey-house extension project. Once you take everything under consideration the added costs for scaffolding and extra costs for electrics, plumbing etc, then the square m2 price is justified to be around the same and not too far away from the square m2 of a single-storey extension. It is true that savings can be made through the roof construction, as indeed a one storey or two-storey building will only need one roof. But I will confirm what any builder will tell you, that it’s much more difficult to tie in the 2nd storey roof to the existing building as opposed to the construction of a new 1st storey roof. So in my opinion and experience, it ends up an add and omit exercise that most often levels out the per square meter m2 price pretty much on level terms.
What do you plan to achieve with your new extension, a kitchen, bathroom, bedroom with ensuite, or just to create more all-round living space
The overall cost of your new house extension would be very dependent on the internal set-up and use of the building. If the new living space is going to contain a new Kitchen or Bathroom installation then either one of these purchases doesn't come cheap these days. and they can add a large amount of extra cost to your extension project, depending on the quality that you go for in your home. A modern standard bathroom would probably set you back around the 5k mark and a simple kitchen around 10k, but these prices are only estimates and prices can certainly escalate quite substantially as you look into these luxury bespoke kitchens and bathrooms that are on the market today.
Basement Conversion Prices
Have you ever considered the option of a basement extension? These types of conversions can certainly add much-needed space, especially if you are limited on space to build out externally. As you can imagine there will be a need to excavate below your property to create the area needed for the conversion. The price of basement conversions can be quite pricey and come in at around 3k to 4k thousand pounds per square meter m2. If this interests you, then you might need to check first to see if your home is suitable for this type of basement conversion. My advice is to find an architect that is experienced in this type of work, as planning permission can be troublesome, another cost I know, but their guidance could be an important factor. Basements are not the easiest of contracts for a builder and they can incur extra expense along the way if difficulties arise.
Garage conversions and prices.
Converting your garage can be a great solution to add an extra room to your existing property and the ideal way to make use of the unused space. A garage conversion usually comes under the “permitted development” so rarely needs a planning permission application, but please don't take my word for it, always check with your local planning authority department first. Integral single and double garage conversions will be the most cost-effective options at around £600 per m2, this will depend on the internal fixings and fittings as normal. These integral garages are most likely close to existing electrical and plumbing works, which also makes a garage conversion a cheaper option than a new extension. This is because the shell structure is already present, which makes the conversion a lot faster to construct than building your standard extension.
Are there any other aspects that could affect the cost of my new house extension?
Access to the site
Site access can be a significant factor to consider when executing your project. If the site is narrow or awkward then there may be additional costs associated with storing building materials and machinery on-site, as well as how you order those goods in advance of construction. It's important to plan ahead so that everything will fit! Construction sites are not always located close together: if yours happens to reside down one of many congested city streets or along an already-tight country lane without room for HGV (or lorry) deliveries, it’s time to think about using smaller delivery vehicles as they tend to cost more than trucks but less than cranes.
Planning area and building materials
Builders are often restricted by location and the materials they have at their disposal. For example, if you're in an area where planners dictate what building materials you need to use, it can be difficult to find a material that matches your style or desired aesthetic for homes like extensions on existing properties with sensitive features such as genuine handmade bricks or natural stone just don't come cheap either; construction costs may increase up to three times depending on which one is used.
Groundwork and soil type
What type of soil is on the property that you want to build your extension? This may determine what types and quantities of building materials that can be used. The ground also determines how much load-bearing weight a house will need in order not to sink into it, so this should always be considered a priority before the construction process begins.
Interested in a quotation for any type of House extension, major building works or renovation project?
Then call our team at Derby House Extensions
01332-215103
Then call our team at Derby House Extensions
01332-215103