Ground floor House Extension in Portsmouth

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Ground floor House Extension in Portsmouth

Are you looking for Single storey house extension in Portsmouth? Our network of builders can help with your job. Every one of our Builder in Portsmouth are checked so you can see local customer reviews, when the business was created, ratings, satisfaction as well as cost,  enabling you to make the ideal choice on who to work with. Let us take the problem out of locating approximately 4 experts for your Single storey house extension job.

Single storey extensions are a great way to add space and value to your house. A single storey extension can be extremely cost effective and they are suited to a wide variety of properties. Smaller sized single storey home extensions can be built without the need to apply for planning permission as they are protected by permitted development rights. Sizeable single storey extensions will still need planning permission. Single storey home extensions can also typically be located to either the side or rear of a house. Single storey home extensions can be used to expand kitchen areas or even to put in a downstairs study or utility room.

 

Additionally, they are often used to create a larger open plan area in the downstairs of the home that could be used as a kitchen diner or living area. Adding roof lighting and bifold doors to your home extension will generate a big airy space that creates a seamless transition in to the garden. While single storey home extensions may appear simpler than other sorts of extension, careful planning is essential to ensure that the new space is useful and beautiful. Competent architects and contractors can give you advice on the most suitable design for your home extension, considering the needs of the new space as well as the best way to complement the existing building. Your single storey home extension could be made to accentuate your existing property and employ similar materials for its construction or be designed to contrast, supplying a striking effect by using different materials.

 

Aspects that effect Single Storey Extension Costs

There are a few aspects to keep in mind when you are establishing your budget plan. The main factors that influence the cost of a single storey extension are the size as well as the coating. However there are other aspects that it is worth bearing in mind while you are making your strategies.

Expensive Groundworks Needed

If it is tough to dig the structures and also lay the ground for your extension, then this can boost the cost of your extensions. This might be the instance if the ground is difficult to work with. Particles in the ground can likewise increase the costs.

  • Grade of Fixtures as well as Fitting
    After the dimension of the extension, the following greatest variable is the caliber of the finish. Picking premium alternatives can result in the final cost being greater than double what it would certainly be when choosing the fundamental options.
  • Size of Extension
    When you are getting an extension on your residence, the single biggest variable that will certainly affect the price of your extension is the size of it. The bigger the extension is, the extra you will certainly wind up paying. If the area inside the extension is straightforward, without inner wall surfaces, after that this will certainly decrease the price per m2 slightly. Nevertheless, despite this in mind. The bigger the location of your extension, the much more you pay.
  • Type of Extension
    The type of extension you pick will certainly go a long way towards dictating just how big your extension will certainly be. Side return extensions develop the smallest extra space so are usually the most inexpensive choice, while a wraparound cooking area extension will produce the most room as well as have one of the most over-priced fittings and also fixtures.
  • Building Regulations
    In most cases, constructing laws do not include a lot of price to a structure job. However, if you are building an extension onto an older residence, there may be some unanticipated prices. This is specifically true if the house has actually not lately been upgraded. Structure guidelines will put on your whole house, not simply the extension. This can result in the requirement for electrics to be looked at or door changed.

 

Kitchen Extensions:

Kitchen extensions largely fall under the areas of ground floor extensions, although all sort of property extensions could be used to integrate additional room for a kitchen.

As an approximate guide, a single storey extension will cost from ₤ 1,000 - ₤ 2,000/ m2, with a basic construct at the reduced end of the range and also an excellent develop top quality at the greater end at a range, with expenses of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will provide up to four Single storey house extension pros in your area, who will certainly supply quotations for the work you desire done. You'll obtain a property visit from professionals in Portsmouth who'll assist you to pick the right Single storey house extension for your home prior to accomplishing the installation. Enter your postal code to start looking now.

Average Single storey house extension cost in Portsmouth

The typical cost of Single storey house extension is £29000. Costs alter based on the materials and the firm selected. The upper price range can be as high as £34800. The material costs are in general around £12000

Average price per Single storey house extension job in 2026

Avg. price low

Avg. price low
£23,200

Avg. price

Avg. price
£29,000

Avg. price high

Avg. price high
£34,800

£35300

£26475

£17650

£8825

£0

Prices based on actual Single storey house extension costs for Portsmouth, as reported by local LeadsDoWork members.

Single storey house extension installation cost in Portsmouth 2026

Labour cost £14,000
Material cost £12,000
Waste removal £3,000
Time frame: 8-12 weeks

Single storey house extension searches in July 2026

Single storey house extension Projects in Portsmouth in June 2026

6,538

Requests for quotations in Portsmouth in June 2026

0

Requests for Single storey house extension quotations in Portsmouth in June 2026. 0% change from May 2026.

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Requests for Single storey house extension quotations in Hampshire in June 2026. 0% change from May 2026.

Source: Numbers calculated based on the search volumes in major search engines

Single storey house extension searches in cities and towns near Portsmouth June 2026

Portsmouth

Home to the world's oldest dry dock, the southerly shoreline city of Portsmouth carries a populace of 442,000, making this the Fourteenth largest urban area in Britain. As with the majority of of the UK's major ports, Portsmouth fell victim to a number of Luftwaffe bombings and a large amount of of the city has actually been refurbished. Regardless of the the contemporary character, presently there is still a great deal of work for companies and house owners help to make regular requests for home improvementss on our website.

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Similar Customer Enquiries for Single storey house extension in Portsmouth

18 May

House Extensions | Single Storey

Portsmouth - PO6

Enquiry from: Sangarsh S

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Relative of Owner Property Type: Detached Looking For: Single...

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10 Apr

House Extensions | Single Storey

Portsmouth - PO2

Enquiry from: Grant C

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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15 Mar

House Extensions | Single Storey

Portsmouth - PO2

Enquiry from: Grant C

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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17 Aug

House Extensions | Single Storey

Newport - PO30

Enquiry from: Crispin K

Start Date: Less than one month

customer has a extensions & conversions project they are looking to have done, specially they want quotes for single storey house extension. they are unsure of options so would like to discuss with a ...

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12 Feb

House Extensions | Single Storey

Cowes - PO31

Enquiry from: Philip P

Start Date: 1 to 3 months

customer made an enquiry for single storey house extension and confirmed on the quotatis site they would like quotes from a builder.customer lives in the cowes area and would like a call to discuss op...

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19 Jan

House Extensions | Single Storey

Cowes - PO31

Enquiry from: Philip P

Start Date: 1 to 3 months

customer in the cowes area made an enquiry a couple of projects including single storey house extension.call anytime and arrange an appointment to discuss. below is some details about this project:cus...

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22 Sep

House Extensions | Single Storey

Ryde - PO33

Enquiry from: Natasha S

Start Date: 1 to 3 months

large two storey and single storey extension and new roof time scale: 1-3 months please call to appoint

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15 Jun

House Extensions | Single Storey

Ryde - PO33

Enquiry from: Rob C

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for single storey house extension. they are unsure of options so would like to discuss with a ...

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09 Jan

House Extensions | Single Storey

Newport - PO30

Enquiry from: Gemma F

Start Date: Less than one month

customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: owner of the property property type: semi detached looking fo...

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03 May

House Extensions | Single Storey

Sandown - PO36

Enquiry from: Karl D

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Relative of Owner Property Type: Semi detached Looking For: S...

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25 Mar

House Extensions | Single Storey

Chichester - PO20

Enquiry from: Judith W

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Detached Looking For: Si...

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06 Nov

House Extensions | Single Storey

Ryde - PO33

Enquiry from: Alf H

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Detached Looking For: Si...

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28 May

House Extensions | Single Storey

Hayling Island - PO11

Enquiry from: Sarah C

Start Date: Immediate

Replace existing conservatory with a single storey extension with a balcony. The single extension will be used as a sitting room, so no plumbing required. The existing area is 21' x 10' - I'm n...

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04 Apr

House Extensions | Single Storey

Southsea - PO4

Enquiry from: Michelle O

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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24 Jan

House Extensions | Single Storey

Hayling Island - PO11

Enquiry from: Sandra H

Start Date: 1 to 3 months

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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15 Jan

House Extensions | Single Storey

Gosport - PO12

Enquiry from: Sophie H

Start Date: 1 to 3 months

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Other Looking For: Singl...

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06 Jan

House Extensions | Single Storey

Gosport - PO12

Enquiry from: Rebecca M

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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31 Dec

House Extensions | Single Storey

Ventnor - PO38

Enquiry from: Toni B

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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28 Aug

House Extensions | Single Storey

Gosport - PO12

Enquiry from: Wendy R

Start Date: Immediate

26ft long side extension x 16ft wide pitched so the side landing window is not covered.

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24 Apr

House Extensions | Single Storey

Sandown - PO36

Enquiry from: Darren R

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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FAQs

How to find a builder for a house extension?

Builders are everywhere, but finding one for your project can be tricky and stressful, with both cost and reliability coming into question. This is even more worrisome when you’re fully aware that your house extension can only be as good as the builder. If you’re also facing the same challenge, then you’ve come to the right place. In this article, we’ll share with you some tips on how to choose a professional and reliable builder who’ll ensure you get immense value for every penny spent. Let’s take a look!

✓ Ask for recommendations. To find a tradesperson, not just a builder, personal recommendations is the best way to go. Building a house extension is a major undertaking which comes with a lot of costs, so if you’re going to do it the least you can do is ensure you do it right. Carry out your research, ask friends and family, neighbours and loved ones if the know of any reliable builder in the local area. If they’ve have one they’ve used, you can request for the cost, quality of the job done, the duration of the project and any other detail you feel you should know.

✓ Search Online. Use our search feature to look at the builders available or submit and enquiry and we will find you one. Our site holds details of numerous builders and building companies which you can go through their ratings to select the best.

✓ Select a reliable builder from trading association. Most reliable builders are usually a member of a recognized trading association or the other. Though this is not obligatory for builders, but it can be used as a dependable medium to find a good builder. We list what trade association the builders are a member of.

how much does a single storey house extension cost?

If you’re planning to build a single story house extension, this is one of the first questions that usually comes to mind to help you set a budget and start to make plans. But as simple as it seems, a single accurate answer can not be provided due to the fact that there are several variables that can play a key role in influencing the price of a single story house extension. These variables includes the size, location, design or specification as well as the build route. In this guide, we’ll provide you with a rough estimate that you can work with to put you on the right path.

The main determinant of the cost of a single storey extension is the size of the build, while the next most relevant factor is the quality of the finish you opt for. For a small extension, you can expect to spend a sum within the range of £14,000 to £17,000. Meanwhile for a larger single storey extension, if you opt for a large wrap around the extension with a great amount of glass to be incorporated in both the walls and roof, you can expect to pay a sum within the range of £80,000 to £120,000.

Overall, the average cost of a single story house extension is usually within the range of £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK.

There are some additional costs you may also need to factor in to your extension budget. These includes surveys, architect fees, planning application fee (if needed), insurance and Party Wall Agreement (if needed).

do i need planning permission for a kitchen extension?

If you’re planning to construct a kitchen extension on your property, one of the first things that comes to mind is whether or not you’ll require a planning permission before you proceed. Generally, kitchen extensions are normally classified as permitted development which allows you to carry out your project without any interruptions from the law or your local authority. In other words, if your extension is meets up with the guidelines of the permitted development rights, you won’t have to apply for a planning permission. However if otherwise, you’ll have to apply for a planning permission to your local council and may require additional reports. And regardless of your position, you’ll always need building regulations approval before you can carry out any kitchen extension project. It may also be required that you’ll have to issue a part wall notice if you’re to build on or close to the boundary with a neighbour.

If you don’t want to go through the hassle and stress involved in applying for a planning permission with your local council, then you must ensure the following:

✓ Your kitchen extension must not be over half of the area of land around your main house.

✓ The kitchen extension must not be side elevation onto a highway or forward of the principal elevation.

✓ The extension must not be taller than the highest part of the roof.

✓ The height of your kitchen extension must not go beyond four metres.

✓ Kitchen extension that’s more than one storey must not go exceed the rear wall of the main house by more than three metres.

✓ Two storey kitchen extensions must not be closer to rear boundary by anything less than seven metres.

✓ The kitchen extension must not include balconies, verandas or any raised platforms.

does a single storey extension add value to your house?

Does A Single Storey Extension Add Value To Your House?

When you’re looking to construct a single storey extension or perhaps you’re just searching for means to increase the value of your property, this question always pops up. The short and simple answer to this question is a resounding yes, a single storey extension can go a long way to increase the value of your property. Just like any other home improvement, when done right, adding a little extra living space is one of the top things you can probably think of that’ll provide a cool increase in your property’s value. However, before you rush in you must also take note of some factors so you can be certain a single storey extension is the right option for you. These factors include the quality of the build, complexity of the build, cost of the build versus the value gain, ceiling price in the area, finance costs as well as the inconveniences and stress.

Generally, the average cost of a single storey extension can range from £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK. So it’s important to know the value they’ll add to your house before deciding to make such an investment.

The value added to your property will depend largely on the quality and size of your single storey extension. The value is usually calculated by estate agents using the number of bedrooms, bathrooms as well as the floor area. Inside London, it’ll typically be priced at £5,000 to £10,000 per square metre, while outside London should be within the range of £900 to £2,000 per square metre.

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