House Extensions & Loft Conversions

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Home Extensions, Loft Conversions & Property Conversions Across London

House Extensions & Conversions London

Looking to create more space without the cost and disruption of moving home?

Artemis Construction provides professionally managed house extensions and property conversion services across London, helping homeowners unlock the full potential of their properties. Whether you need additional living space for a growing family, a larger kitchen, a dedicated home office or an extra bedroom, our team delivers practical building solutions tailored to your property and long-term goals.

Based in Ealing and serving clients throughout West London, Central London and surrounding areas, we undertake a wide range of extension and conversion projects, from rear extensions and loft conversions to garage conversions, basement conversions and complete property reconfigurations.

From the initial consultation through to project completion, we focus on quality workmanship, careful planning and clear communication at every stage.

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Why Extend or Convert Instead of Moving?

For many London homeowners, moving to a larger property is becoming increasingly expensive and impractical.
Stamp duty, legal fees, moving costs and higher property prices can make relocating a costly option.
A well-designed extension or conversion often provides a more cost-effective alternative while allowing you to remain in the area you already know and enjoy.

Additional space can:

A professionally designed extension or conversion can transform the way a property functions while improving both comfort and value.
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Our Services

Our Extensions & Conversions Services

Every property is different, which is why we offer a range of extension and conversion solutions tailored to different needs and property types.

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House Extensions

House extensions are a practical way to increase space and improve how your home functions, whether by expanding living areas, adding rooms or creating open-plan layouts.

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Rear, Side & Wraparound Extensions

These extension types are popular across London and help maximise ground floor space, especially in period properties with unused side or rear areas.

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Single & Double-Storey Extensions

Single-storey extensions are ideal for expanding kitchens and living areas, while double-storey extensions add significant space with extra bedrooms and bathrooms.

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Loft Conversions London

Loft conversions create additional space without extending outward and are commonly used for bedrooms, offices or guest rooms. We deliver various styles depending on your property.

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Garage & Basement Conversions

Garage and basement conversions provide extra living space without major structural changes, suitable for offices, gyms or additional rooms.

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Conservatory Conversions

Converting a conservatory improves insulation and usability, turning it into a comfortable, year-round living space.

Why Choose Us

Why Choose
Artemis Construction

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Experienced Building Professionals

We deliver extension and conversion projects across London using skilled tradespeople and professional project management.

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Transparent Quotations

Our quotations clearly outline the scope of works, helping clients understand costs and project expectations from the outset.

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Quality Workmanship

Attention to detail and high construction standards remain central to every project we undertake.

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Local Knowledge

As a London-based construction company, we understand the challenges associated with working on a wide range of property types across the capital.

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Building Regulations Compliance

All projects are completed in accordance with relevant building regulations and industry standards.

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A Fully Managed Extension & Conversion Service

Construction projects involve many moving parts.

Our role is to coordinate the process efficiently and professionally while keeping clients informed throughout.

We manage:  

By providing a single point of contact throughout the project, we help simplify the process and minimise unnecessary stress for our clients. 

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Areas We Cover

Based in Ealing, we provide extension and conversion services throughout:

We also undertake projects throughout Surrey, Berkshire, Hertfordshire, Buckinghamshire, Essex and Kent. 

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Have Questions?

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Faq's

Frequently Asked Questions

Below are some of the most common questions we receive from homeowners planning a house extension or property conversion in London.

These answers are designed to give you a clearer understanding of the process, requirements and what to expect when starting your project.

Do I need planning permission for a house extension?
Some projects fall under permitted development rights, while others require planning permission. Requirements depend on the size, design and location of the property.
Timescales vary depending on project size and complexity. During the quotation stage, we provide estimated construction timelines tailored to your project.
Dormer loft conversions are among the most common options due to the additional headroom and floor space they can create.
A professionally designed extension can significantly improve both usability and market value, although results vary depending on property type and location.
Yes. Artemis Construction provides a fully managed service covering planning, construction, coordination and project delivery.

Ready to Discuss Your Project?

Whether you’re considering a house extension, loft conversion, garage conversion or another property improvement project, Artemis Construction is here to help.

Contact our team today to arrange a free consultation and quotation.