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 Balham in January 2025
Requests for Basement renovation quotations in Balham in January 2025. 0% change from December 2024.
Requests for Basement renovation quotations in London County in January 2025. 0% change from December 2024.
Balham is a district in south London inside the London Borough of Wandsworth. The settlement appears inside the Domesday Book as Belgeham. Bal means ‘rounded enclosure’ and ham a homestead, village or river enclosure. The location has been settled since Saxon times, and Balham Hill and Balham High Road follow the line of the Roman road Stane Street to Chichester.
Balham encompasses the A24 north of Tooting Bec and the roads coming off it. The southern area of Balham which is close to Tooting Bec has a block of 1930s Art Deco flats known as Du Cane Court. There's also the Heaver Estate which can be found in Tooting, which comprises substantial homes. It was built inside the grounds of the old Bedford Hill House by local Victorian builder Alfred Heaver.
Balham is located between 4 south London commons, namely Clapham Common towards the north, Wandsworth Common towards the west, Tooting Graveney Common to the south along with the connecting Tooting Bec to the east.
In the Second World War, on 14th October 1940, Balham tube station was badly damaged by air raids on London. People sheltered inside the tube station throughout the raids, but a bomb fell in the High Road and through the top of the Underground station, bursting a water and gas mains and killing around 64 people today. Ian McEwan describes the event in the novel ‘Atonement’, published in 2001.
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London - SW4
Enquiry from: William F
Start Date: Immediate
Damp identified on lower ground floor. Front to back, including from water ingress from recent downpour/flooding in the area. Rectification, damp proofing and sump required - for long-term fix. Area ...
London - SW4
Enquiry from: Darren K
Start Date: 1 to 3 months
basement bathroom and utility area. floods after consistent heavy rain as a result of high water level. dont believe original work was to highest standard. time scale: 1-3 months please call to appoin...
London - SW11
Enquiry from: Alice T
Start Date: 1 to 3 months
Basement conversion quotations Time scale: 1-3 months Please call to appoint Time scale: 1-3 months Please call to appoint
London - SW12
Enquiry from: M B
Start Date: Immediate
Big out exisitng basement to become livable area, with en suite and utility area. I have architectural plans I could send you? Structural engineer drawings will be available in 2 weeks
Sunbury-on-Thames - TW16
Enquiry from: Paul L
Start Date: Immediate
I am interested in a consultation regarding converting our existing basement into a liveable bedroom. It has two existing windows, which although small, allow in some natural light from the garden.
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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.
Whether a basement is worth converting depends on your location and how much work it requires.
A basement conversion can be a great way to add space to your home, and can raise your property value. However, it can also be one of the most expensive ways to do this, so if there’s a possibility to extend your property, or convert a loft or garage, it’s worth considering this first.
You should also compare how much your basement conversion will cost with the amount it could raise your property value by. In some areas, a quality basement conversion could earn you money in the long run, but in others it’ll only cost you. If you’re planning on staying in your property for a long time this might not matter to you, but if it’s not your forever home then it’s an important thing to think about.
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.
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