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 Newham in December 2024
Requests for Basement renovation quotations in Newham in December 2024. 0% change from November 2024.
Requests for Basement renovation quotations in London County in December 2024. 0% change from November 2024.
The London Borough of Newham is a London borough within east London. It is about five miles (8 km) east of the City of London, north of the River Thames. The borough was formed by merging the former area of the Essex county borough of East Ham as well as the county borough of West Ham as a borough of the newly formed Greater London, on 1 April 1965. Green Street and Boundary Road mark the former boundary in between the two. Newham was devised for the borough as an entirely new name. The local authority is Newham London Borough Council.
The borough covers an overall area of 13.98 square miles. In accordance with population estimates created during 2014, Newham is a borough with a permanent population of about 324322 individuals. In line with the 2011 Census, Newham has the youngest overall population in the nation. Transport in Newham is undergoing a significant upgrade, with the completed Docklands Light Railway and Jubilee Line Extension, and new or enhanced stations at Canning Town, West Ham and Stratford. Stratford International station on High Speed 1 opened in late 2009.
Newham was among the list of six host boroughs for the 2012 Summer Olympics and contains a lot of the Olympic Park such as the Olympic Stadium.
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London - E12
Enquiry from: Selvi R
Start Date: Immediate
Cellar need damp proff wirk
London - E7
Enquiry from: Sami M
Start Date: Immediate
Small amount of damp has risen due to rain water outside.
London - E7
Enquiry from: Musarat R
Start Date: 1 to 3 months
I would like to convert my cellar so I can use it as an extra space. I would like some shelving and to build it in to a small gym. Currently it is full of boxes from when I moved in and I am in the pr...
London - E11
Enquiry from: Mark G
Start Date: Immediate
The site is backland with 2 x 4 bed houses with 100m2 each basement. Water table is @2.8m, basement floor height 2.6m pref Access is limited to approx 2.0m high x 3m wide. We are at planning ...
London - E11
Enquiry from: Francine M
Start Date: 1 to 3 months
Like to know costing of having my cellar converted into living space. Already have a cellar but can't quite stand up fully in it so will need a dig out. Thank you look forward to hearing from you. ...
London - E15
Enquiry from: C
Start Date: Immediate
Shopping for quotes to renovate my basement to a room.
London - E11
Enquiry from: Zahid A
Start Date: Immediate
basement conversion to living accommodation via external access (will be easier to communicate via email than phone) Time scale: 1-3 months
London - E11
Enquiry from: Sofie E
Start Date: 1 to 3 months
We have recently discovered a basement/cellar under our flat which we are hoping to convert into living space. The space is ~25m2 and the head height is currently 160cm so further excavating would b...
London - E6
Enquiry from: Frances C
Start Date: 1 to 3 months
cellar tanking or submersible pump system fitted Homeowner Please contact to appoint
London - E11
Enquiry from: Rebecca R
Start Date: 1 to 3 months
We have a current basement conversion where our living room and kitchen Homeowner Please contact to appoint
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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.
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.
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.
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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