How much does a basement conversion in London cost?
Expanding your living space upwards or outwards is one way to add value to your home, but have you considered the transformative power of a basement conversion? Particularly in London, a basement can provide the much-needed extra space that your home craves.
Basements offer incredible versatility, allowing for a wide range of uses. From extra bedrooms to studios, gyms to wine cellars, even swimming pools – the possibilities are endless. Imagine the lifestyle enhancements and increased property value that a well-designed basement conversion in London can bring.
When it comes to the cost of a basement conversion project, it is important to understand that various factors come into play. On average, you can expect to invest upwards of £140,000 (+VAT) for a typical basement conversion in the London area.
At Simply Basement, our experienced team will meticulously assess your project requirements, providing you with a transparent and tailored cost estimate. With our expertise in excavation and fit-out services, we ensure that your basement conversion aligns with your vision and budget.
As a part of the Simply Construction Group, Simply Basement brings you unmatched expertise in transforming your basement into a functional and stylish space. But that’s not all—we work hand in hand with our sister brands, Simply Loft and Simply Extend, to offer you comprehensive solutions for loft conversions, kitchen extensions, side return extensions, and refurbishments all across London.
Average Basement Conversion Costs
Many factors influence the overall cost of a basement conversion. Here is a list of some of the potential costs involved.
- Digging With Underpinning: between (approx.) £2,200 – £3,000 per square meter.
- Digging A Garden Space: between (approx.) £1,750 – £2,800 per square meter.
- Creating A Lightwell and External Access: between (approx.) £5,500 – £9,500
- Architectural and Engineering Fees: between £1,500- £1,800 for basic plans. A full design package is approximately £15K – 25K
- Building Regulation Applications: From £1,000.
- Planning Application: From £200 – £250
- Party Wall Surveys, Trial Pits, Requested Document: From £1k- £2k per neighbour
- VAT (20%) On Top Of All Costs
Additional Basement Conversion Cost Factors To Consider
- Diverting Drains: Depending on the layout and location of drains on your property, these may need to be diverted to make way for the basement construction.
- Type of Subfloor Required: The type of subfloor eg timber or concrete, can impact the overall cost.
- Ground Conditions: Soil types such as clay or marshland may require flood risk surveys and additional management plans.
- Location: If your property is in a built-up area with busy transport links then traffic management plans may be required during the basement construction.
- Permits: Multiple permits may need to be accounted for such as skip licenses and permits, parking bay suspensions, grabber lorry permits or permission, hoarding permission and permits for the pavement and roadside.
We will take over the management of all areas of your basement construction so you can be sure that all aspects of the construction are being taken care of.
For a basement conversion estimate please get in touch with us for a free site survey. All you have to do is call 0800 917 7571, or fill out our simple online enquiry form. We cover most areas of London and Greater London with our basement conversion services, contact us today.
