Basement Conversions

Basement CONVERSIONs

Basement & Cellar Conversions in London

If you’re struggling for space in your property in London but don’t want to move, then a basement conversion could be the right move for you.

Basement and cellar conversions are great ways to add space and value to your home without moving property or taking up precious garden space.

Whereas a loft conversion may require more construction and have more restrictions, a basement conversion is a cost-effective, simpler way to add space and value to your home.

What you can expect from us

All you need is a cellar underneath your property. City Construction provide Basement Conversions and Cellar Conversions in London and will inspect the cellar, give you a quote and begin working on your basement conversion.

All work carried out on your basement will begin with initial structural waterproofing. Damp and mould is a common issue with basements and can affect the structure and aesthetic of a cellar.

A basement is a perfect location for additional family living space, such as a playroom or home entertainment room. It is also a great place to relocate the utility room, boiler and storage, freeing up more valuable above-ground space.

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We utilise these systems in tandem with brilliant workmanship to deliver the project of your dreams – whether that involves extensions or barn conversions, we can do it ALL. Good installation protocols are followed to the letter to ensure long-lasting, highly resistant brick retention.

What you can expect from us

What types of basement conversion can I get?

There are two main types of basement conversion to an existing property:

  • Renovate an existing basement or cellar
  • Create a new basement in your home


Whether you are a homeowner or a property developer, we offer you a full basement construction service that is tailored to your needs —from conception to the final decorating and finishing.We even take care of planning and building regulations.

It doesn’t matter if your project involves the reconstruction of an existing room, new building in the basement, or a modernisation of the basement in the existing structure, we have the know-how to give you what you want.

What you can expect from us

Get in touch today to find out how we can convert your basement to a perfectly usable space.

A full-size basement can make up one-third of the available space in a building, but it is often used only to store items that cannot be damaged by moisture. But these days, basement conversions are a great option because they offer extended living spaces.

Basement conversions can increase the usable area of ​​the house.A professionally converted basement can be used as an office, playroom, bedroom, basement studio, an additional bathroom or home cinema.

Our team has expert experience in providing London properties with the core structure for their new basement. We work either directly with you – the homeowner – or with your architect, designer, or engineers. Either way, we will always discuss exactly what you’re hoping to achieve from your basement construction, to ensure you’re getting exactly what you envision.

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“City Construction: Elevate value & space. From ground-up builds to renovations, we create structures for homes & businesses. Enhance property value through meticulous restoration. Optimize space with cost-effective loft transformations. Your vision, our expertise.”
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Our Gurantee

City Construction Services guarantees exceptional value. From ground-up construction to meticulous renovations, we enhance property value. Need extra space? Our cost-effective loft transformations deliver functionality and style. Your vision, our expertise.
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We Provide

City Construction Services: Elevate your spaces with our expertise. From ground-up construction based on your vision, to property restoration enhancing value, and cost-effective loft transformations for added functionality. We turn ideas into remarkable structures, boosting value and optimizing space for homes and businesses.