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Unlock the potential of your space with our expert Vault Conversions.

Converting an underutilized space can transform your home without altering its exterior. Before you consider moving to a new house, think about the possibilities of converting your existing space into a functional area. This not only expands your living space but also significantly enhances your home's aesthetics.

Our trusted team of home improvement specialists at Spaces4You have been serving Surrey and South West London since 1985. Among our key services, we specialize in vault conversions, providing end-to-end solutions from initial consultation to the final finishing touches.


Vaults offer a multitude of possibilities. You can transform them into an office, gym, personal library, cellar, or playroom. Unlike loft conversions that are typically used for additional bedrooms, vaults offer diverse potential. By waterproofing and soundproofing, you can create an extra bathroom, wine cellar, storage space, kitchenette, or cinema room. The choice is entirely yours, and our builders can tailor the construction to your specific needs.

Did You Know?

Vaults, also known as 'under pavement cellars,' were commonly found in many Victorian properties in Central London, primarily used for coal storage.

Is My Property Suitable for a Vault Conversion?

It's essential to assess your property type and review the planning policy related to basement conversions. Converting an existing space into a habitable area often falls under a 'change of use' and may not require prior planning permission. Spaces4You can handle the planning policy work, making your vault conversion hassle-free.

Benefits of Vault Conversions:

  • Maximizing an unused space within your property.

  • A cost-effective alternative to relocating.

  • Most houses with pre-existing vaults do not require planning permission.

  • Adds valuable extra space.

  • Elevates your overall standard of living.

Why Choose Us?

  • We are industry pioneers with 31 years of cumulative experience in building and construction services.

  • We offer comprehensive home improvement solutions.

  • Spaces4You is a certified Chartered Building Company.


Vault conversions start at £30,000, with costs varying based on the vault's size. The duration of a vault conversion can range from 12 to 24 weeks, depending on the size and area of the space being converted.

Vault Bathroom

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