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 Southwark in October 2024
Requests for Basement renovation quotations in Southwark 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 London Borough of Southwark in south London, England forms part of Inner London and is connected by bridges across the River Thames towards the City of London. It was established in 1965 when three smaller council places amalgamated under the London Government Act 1963. This included the former area of the Metropolitan Borough of Southwark, the Metropolitan Borough of Camberwell, along with the Metropolitan Borough of Bermondsey. It is governed by Southwark London Borough Council.
It borders the City of London and also the London Borough of Tower Hamlets towards the north, with the River Thames forming the boundary, the London Borough of Lambeth to the west plus the London Borough of Lewisham towards the east. Towards the south are the London Boroughs of Bromley and Croydon. Based on population estimates created during 2014, Southwark has a permanent population of about 302538 inhabitants.
The borough is residence to many cultural, historical and notable attractions. The Shard, Tate Modern, Shakespeare's Globe Theatre, and Borough Market that are the largest of the venues in Southwark to draw domestic and international tourism. Dulwich hosts the Dulwich Picture Gallery as well as the Imperial War Museum in Elephant and Castle.
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London - SE14
Enquiry from: Douglas H
Start Date: Immediate
basement tanking/waterproofing and maybe additional works as required are you the property owner: owner of the property property type: terrace how many rooms are currently within the basement: 1 room ...
London - SE22
Enquiry from: Mounia Y
Start Date: 1 to 3 months
Hi there, I'm about to buy a flat in east dulwich which has a 16sqm basement accessible with a hatch. I would like the basement to be dug further down to create more head space and then make it dam...
London - SE14
Enquiry from: Naomi R
Start Date: Immediate
Hi - we are looking to get our basement converted and wanted to get a quotation please. It is to convert an existing basement into a proper room, would involve digging out part of the basement which ...
London - SE23
Enquiry from: Aktarun K
Start Date: Immediate
I live in a house conversation, ground floor and have an existing basement. I would like to dig 0.5- 1 meter down to meet legal height requirement and put 2 bedrooms and 1 shower/toilet in the basemen...
London - SE5
Enquiry from: Micheal R
Start Date: Immediate
basement under
London - SE21
Enquiry from: Louise S
Start Date: Immediate
Basement conversion
London - SE26
Enquiry from: Ruth P
Start Date: Immediate
Would like to put in a basement and build small extension
London - SE22
Enquiry from: Avie L
Start Date: Immediate
Quote for basement conversion
London - SE22
Enquiry from: Pierfilippo D
Start Date: Immediate
Converting a cellar into a bedroom with en-suite bathroom plus storage.
London - SE14
Enquiry from: Hussnain S
Start Date: Immediate
I want to extend the basement of my property also want to separate the entry and exit of the basement
London - SE4
Enquiry from: Mal S
Start Date: Immediate
Creating a basement including all drawing and waterproof and make 2-3 bedroom flat.Need to have access from outside and make stairs to ground floor from basement.
London - SE15
Enquiry from: Helen D
Start Date: 1 to 3 months
Victorian cellar, fitted with a pump which works very effectively on any excess water from underground sources! Dry all of the time. Would like it to look much better, walls plastered, ceiling built, ...
London - SE14
Enquiry from: Natalie E
Start Date: 1 to 3 months
I have a basement in my ground floor terraced flat and I'd like to make it into a properly finished room so that I don't need to worry about using it for storage. It doesn't seem to be damp (there's n...
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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.
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.
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.
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.
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