Basement Conversion in Westminster

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Average Basement renovation cost in Westminster

Basement conversions fluctuate in cost depending on project scale, professionals hired and location. If your basement conversion doesn’t 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.

Average price per Basement renovation job in 2024

Avg. price low

Avg. price low
£30,000

Avg. price

Avg. price
£40,000

Avg. price high

Avg. price high
£46,000

£46500

£34875

£23250

£11625

£0

Prices based on actual Basement renovation costs for Westminster, as reported by local LeadsDoWork members.

Basement renovation installation cost in Westminster 2024

Labour cost £28,000
Material cost £10,000
Waste removal £2,000
Time frame: 1-6 months

Basement renovation searches in September 2024

Basement renovation Projects in Westminster in August 2024

8,212

Requests for quotations in Westminster in August 2024

0

Requests for Basement renovation quotations in Westminster in August 2024. 0% change from July 2024.

0

Requests for Basement renovation quotations in London County in August 2024. 0% change from July 2024.

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

Basement renovation searches in cities and towns near Westminster August 2024

The Greater London region has the second biggest population in the UK, just behind the South East. However, with the smallest land area of all 9 English zones, it comes with a large population density of 5,701 people per square kilometre; this is more than ten times of any other English region. London continues to increase in size over time, becoming increasingly industrialised. The City of London at the same time ranks as one of the most expensive urban centres on the planet, beside Tokyo and Moscow. For your household developments be sure to work with trustworthy firms and guarantee an excellent finish you will be proud of.

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Basement renovation pros in Westminster

Nicholas James Construction

7 review(s)
Based: in Bromley, BR1 3AX

From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.

Latest review

Cosima R., SE13
5

Conversion | Basement in London

Very friendly and helpful.

Similar Customer Enquiries for Basement renovation in Westminster

19 Apr

Conversion | Basement

London - SW2

Enquiry from: June W

Start Date: 1 to 3 months

i need to make a whole in the wall to fit 2 windows are you the property owner: owner of the property property type: other how many rooms are currently within the basement: 1 room how many rooms do yo...

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20 Dec

Conversion | Basement

London - NW1

Enquiry from: Rachel W

Start Date: Immediate

i have 2 vaults that need to be dug out and damp proofed. i am looking for someone to design and apply for the planning permission also are you the property owner: owner of the property property type:...

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01 Sep

Conversion | Basement

London - SW17

Enquiry from: Ben M

Start Date: Immediate

Basement window installation.

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21 Oct

Conversion | Basement

London - SW4

Enquiry from: William F

Start Date: Immediate

Basement renovation Lead

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 ...

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31 Mar

Conversion | Basement

London - NW4

Enquiry from: Adrian D

Start Date: Immediate

Sump tanking system for two basement rooms floor area 6x4/ meters And wall height 3 meters

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17 Feb

Conversion | Basement

London - SW6

Enquiry from: Lucia L

Start Date: Immediate

I would like a price quote for doing basement extension

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18 Dec

Conversion | Basement

London - SW16

Enquiry from: Giselle S

Start Date: Less than one month

make an existing 32sq m basement waterproof, add a light well, and convert into x2 bedrooms and a bathroom are you the property owner: owner of the property property type: detached how many rooms are...

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26 Nov

Conversion | Basement

London - NW3

Enquiry from: Gordon T

Start Date: Less than one month

damp patches in corridor and in living room( garden level at south end) front bedroom, bathroom , conservatory and kitchen clear. are you the property owner: owner of the property property type: terra...

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21 Oct

Conversion | Basement

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...

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04 Oct

Conversion | Basement

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...

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21 Mar

Conversion | Basement

London - W5

Enquiry from: Mel W

Start Date: Immediate

Basic cellar waterproofing to allow use for storage - most cost effective option with guarantee required Time scale: Immediate Please call to appoint

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02 Nov

Conversion | Basement

London - W5

Enquiry from: Apple I

Start Date: 1 to 3 months

How much to tank a basement? 5.4m x 3.6m. Floor to ceiling height is about 7.5ft. Time scale: 1-3 months Please call to appoint

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02 Oct

Conversion | Basement

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

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23 Sep

Conversion | Basement

London - SW16

Enquiry from: Jonathan B

Start Date: 1 to 3 months

Hi, I'd like to enquire about converting our basement into a habitable space. Please see our flat just before we bought it last year on the following link: https://www.purplebricks.co.uk/prop...

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27 Aug

Conversion | Basement

London - NW6

Enquiry from: Nandula P

Start Date: Less than one month

Lightwell (final exit) Fire escape external stairway leading from the exiting basement (Brent council dwelling).

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16 May

Conversion | Basement

London - W12

Enquiry from: Geoffrey T

Start Date: Immediate

Front steps slight water entry in basement.

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01 Mar

Conversion | Basement

London - NW6

Enquiry from: Rafi K

Start Date: Immediate

I would like to build a basement. This will require digging out basement space as I don't have a cellar.

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19 Feb

Conversion | Basement

London - NW8

Enquiry from: Annabel K

Start Date: Immediate

Basement under a Mews House in Maida Vale approx 900 sq ft floor space for the basement area and there is an atrium at the back so light wont be a problem

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01 Feb

Conversion | 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

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24 Nov

Conversion | Basement

London - SW16

Enquiry from: Jenny K

Start Date: 1 to 3 months

Make basement from existing cellar with 1.6 m head height, Size 26 foot by 12 foot. Make entrance under existing bay window. To include small bathroom. Good quality finish Time scale: 1-3 months

Post a similar request >

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FAQs

Does a converted basement need windows?

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.

Is a basement conversion worth 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.

How to convert a basement into living space?

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.

How to convert a basement into an apartment?

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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