Basement conversions fluctuate in cost depending on project scale, professionals hired and location. If your basement conversion doesnât need any construction work, then it should cost relatively little. However, the majority of projects at least need damp proofing and water proofing work, if not insulation, heating, electrical work and more. This means that even smaller basement conversion projects are still relatively expensive. The average UK cost ranges from £30,000 - £50,000.
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£46500
£34875
£23250
£11625
£0
| Labour cost | £28,000 | |
| Material cost | £10,000 | |
| Waste removal | £2,000 |
Requests for quotations in Kensington and Chelsea in October 2024
Requests for Basement renovation quotations in Kensington and Chelsea in October 2024. 0% change from September 2024.
Requests for Basement renovation quotations in London County in October 2024. 0% change from September 2024.
The Royal Borough of Kensington and Chelsea is an inner London borough of Royal borough status, towards the west of the centre. The borough was created in 1965 from the former boroughs of Kensington and Chelsea. Kensington's Royal Borough status was inherited by the new borough. It covers an area of 4.68 square miles. As the smallest borough in London as well as the second smallest district in England, this urban area is amongst the most densely populated within the UK.
In 2005, the borough had more of its land covered by domestic buildings than anywhere else in England at 19 per cent, which is over half of the national average. It also had the 5th highest proportion of land covered by non-domestic buildings at 12 per cent.
The borough is immediately towards the west of the City of Westminster and towards the east of the London Borough of Hammersmith and Fulham. It consists of significant museums and universities in Albertopolis, department stores like Harrods, Peter Jones and Harvey Nichols, and embassies in Belgravia, Knightsbridge and Kensington Gardens. It is home to the Notting Hill Carnival, Europe's biggest. It contains many of the most highly-priced residential districts in London and even in the world, and also districts with high levels of social housing and poverty. The local authority is Kensington and Chelsea London Borough Council. The borough's motto is Quam Bonum in Unum Habitare, which is usually roughly translated as 'How good to dwell in unity'.
From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.
Very friendly and helpful.
London - SW6
Enquiry from: Lucia L
Start Date: Immediate
I would like a price quote for doing basement extension
London - W14
Enquiry from: Daniel F
Start Date: Less than one month
make the current old coal cellar into a dry enough space to use for storage. not looking to make this a habitable room, but currently when it rains water drips through and pools on the floor are you t...
London - W12
Enquiry from: Geoffrey T
Start Date: Immediate
Front steps slight water entry in basement.
London - SW18
Enquiry from: Leila M
Start Date: Less than one month
To remove and replace flooring in cellar. To remove skirting boards and replace with new. Paint and decorate walls. Time scale: Less than one month Please call to appoint
London - SW6
Enquiry from: Surinder K
Start Date: 1 to 3 months
basement conversion. Almost the same as a neighboring property.
London - W9
Enquiry from: Ben S
Start Date: 1 to 3 months
Basement excavation. Existing basement has 6 foot ceilings, need to dig down another 2-3 feet. Floor plate is 700 square feet. Time scale: 1-3 months
London - SW6
Enquiry from: Anne H
Start Date: 1 to 3 months
conversion of basement from coal shoot (currently housing washing machine, dryer and freezer) into 1 bed, ensuite bathroom, utility room and open space for kids room Homeowner Please contact to ap...
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Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.
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The best way to go about converting a basement depends on its current condition and what you’d like to use it for.
If you’re happy with its size and structure, and just want to turn it into useful storage space, then your project shouldn’t be too complicated. You’ll simply need to make sure it’s damp proof and waterproof – either by fitting tanking or a cavity drain membrane with a sump and pump. You may also need to invest in new flooring, fit basic lighting, and plaster and paint the walls and ceiling.
If you’d like to turn your basement into living space, then you’ll need to think about ventilation, insulation and heating. If this involves creating a kitchen or bathroom, you’ll also need to incorporate plumbing.
If you want to extend your basement, add lightwells, or fit windows and a sunken garden, this makes things much more complicated. You’ll probably want to hire an architect or basement conversion building specialist to help you with the design and planning, and you’ll need a structural engineer to help you ensure your property is sufficiently supported.
Windows or lightwells can be a great way to introduce natural light into your basement, making it a more valuable, enjoyable space. However, they’re not always an essential requirement.
It’s important for your basement conversion to meet ventilation and fire safety building regulations. Windows can be a good way to do this, but they’re not the only option. Stack or mechanical ventilation, or ensuring that stairs up from your basement connect to an exit can be a good alternative.
So, while windows can be a great asset to your basement conversion, if you can’t afford them or they’re not structurally feasible, you can still create a basement conversion without them.
If your basement has a cavity drain membrane, it’ll need a pump to move water away from the exterior of your basement and prevent flooding.
Sump pumps can be noisy, but they don’t have to be. Generally, if you have a well-designed pump that’s installed correctly, you shouldn’t find it a problem. For best results, hire a skilled, experienced professional to supply and install your drainage system.
In some cases, it’s possible to convert a basement into an apartment. This can be a great way to incorporate an additional dwelling into your property and increase its value. However, converting a basement into an apartment can be quite expensive and time-consuming.
As with any type of dwelling, you’ll need to think about basic things like access, damp proofing, ventilation, insulation, heating, electrics, plumbing, lighting and décor. If you’re planning on extending your basement, then you’ll also need to ensure that your property is sufficiently supported.
It’s a good idea to consult a professional, like a basement conversion building specialist, to find out how feasible your project is before you go ahead with it.
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