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  • 0208 166 5145
  • hello@ashislandlofts.co.uk
  • 566 Chiswick High Road, London, W4 5YA
  • 0208 166 5145
  • hello@ashislandlofts.co.uk
  • 566 Chiswick High Road, London, W4 5YA
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  • Home
  • Our Services
    • Loft Conversions
    • Extensions
    • Refurbs
  • Our Process
    • The Process
    • Cost
    • FAQ
  • Our Projects
  • About Us
  • Testimonials
  • Blog
  • Contact Us
  • Home
  • Our Services
    • Loft Conversions
    • Extensions
    • Refurbs
  • Our Process
    • The Process
    • Cost
    • FAQ
  • Our Projects
  • About Us
  • Testimonials
  • Blog
  • Contact Us
  • Home
  • About Us
    • About Us
    • Our Projects
  • Our Services
    • Loft Conversions
    • Extensions
    • Refurbs
  • Our Process
    • The Process
    • Cost
    • FAQ
  • Testimonials
  • Blog
  • Contact Us
  • 0208 166 5145
  • hello@ashislandlofts.co.uk
  • 566 Chiswick High Road, Chiswick
Instant Quote

Costs & Pricing

Costs vary based on size, design, and structural needs. Get a tailored quote with a site survey and consultation.
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How Much Does a Loft Conversion or Kitchen Extension Cost?
Every project is unique, and costs can vary depending on factors such as the size, design, and structural requirements of your home. We provide tailored quotes based on a detailed site survey and consultation.
For a free quote or to get help with your building project, call 0208 166 5145

Loft Conversion Costs

The cost of a loft conversion depends on the type and complexity of the build. Below are some of the most common loft conversion types:

  • L Shape Mansard Loft Conversion – Adds significant space, ideal for a master bedroom with a bathroom and an additional study or bedroom.

  • Hip to Gable Loft Conversion – Great for properties with a hipped roof, maximising usable floor space.

  • L Shape Dormer Loft Conversion – Offers excellent headroom and layout flexibility.

  • Single Dormer Loft Conversion – A cost-effective way to add extra living space.

  • Double Mansard Loft Conversion – Creates a large, spacious extension across the entire roof.

  • Single Mansard Loft Conversion – Provides additional space while maintaining the character of your home.

  • Velux / Rooflight Loft Conversion – A more affordable option that doesn’t require major structural changes.

Every conversion includes structural work, insulation, stair installation, electrical wiring, heating, and more. For an accurate quote, book a consultation with our team.

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Kitchen & Home Extension Costs

A well-designed extension isn’t just about adding space—it enhances your home’s functionality, improves your lifestyle, and increases property value. The final cost depends on factors like size, structural modifications, and finish level.

Popular types of home extensions include:

  • Side Return Extensions – A popular choice for Victorian and Edwardian terraced homes, these extensions expand the kitchen or dining area, creating a more open and spacious layout.

  • Wraparound Extensions – A combination of side and rear extensions, providing maximum ground-floor expansion for a larger, more versatile living space.

  • Rear Extensions – Extends your home towards the garden, ideal for creating open-plan kitchen and living areas.

Included in our home extension service:

  • Architectural drawings and planning permissions

  • Structural work, including foundations and roofing

  • Plumbing, electrical, and heating installations

  • High-quality finishes tailored to your style

Whether you’re looking for a bigger kitchen, a dedicated workspace, or an extra bedroom, we ensure your extension blends seamlessly with your home’s character and meets your needs.

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Please note - we are not interested in 'bodge jobs' or illegal conversions - all projects must be fully compliant with Building Regulations.
Ready to uplift your home?
Whatever the size of the project, please get in touch below and we can help you on your way to creating your dream home.
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Ash Island is a London-based construction company specialising in residential projects.

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  • About Us
  • Loft Conversions
  • Extensions
  • Refurbs
  • Our Projects
  • Testimonials
  • The Process
  • Contact Us
  • About Us
  • Loft Conversions
  • Extensions
  • Refurbs
  • Our Projects
  • Testimonials
  • The Process
  • Contact Us
Get In Touch
  • Email: hello@ashislandlofts.co.uk
  • Phone: 0208 166 5145

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