DS5 Construction

House Extension in London

House Extension in London – section 1
A well-designed house extension should feel fully integrated with the existing property rather than added on as a separate structure. At DS5 Construction Ltd, we build extensions that increase usable space, improve natural light, and enhance how the home functions day to day.
Whether the project is focused on creating a larger kitchen, a more open-plan ground floor or additional accommodation across two levels, every extension must combine structural integrity, visual balance and a finish that works with the existing property.
House Extension in London – section 2

Extension Options

  • Rear Extension
    A practical solution for extending living space towards the garden while improving the overall usability of the house.
  • Side Return Extension
    Particularly suited to Victorian and Edwardian terraced properties, using side space to create a wider and more functional internal layout.
  • Wrap-Around Extension
    Combines rear and side extension space to create a larger open-plan arrangement with improved flow and more natural light.
  • Double-Storey Extension
    A strong option where additional space is required across two floors without sacrificing too much external area.
House Extension in London – section 3

What the service includes

Our extension works typically include demolition, enabling works, excavation, foundations, drainage, brickwork, blockwork, steelwork, roof construction, insulation, glazing, first- and second-fix services, plastering, flooring, decoration, and final fit-out.

How we deliver it

We deliver each extension as a complete build package, including sequencing, structure, roofing, glazing, services, and internal finishes, in the right order. This helps maintain quality, avoid clashes between trades and ensure the new space connects properly with the existing property.

The result

The completed extension provides more usable space, improved natural light and a better overall layout, while feeling like a natural continuation of the house.

Service Portfolio

A curated selection of completed works showcasing our construction quality, technical precision, and attention to detail across every stage of delivery.

House Extension in London – photo 12
House Extension in London – photo 1
House Extension in London – photo 2

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Why Work With Us

We coordinate and manage every stage of your project, keeping the process organised, efficient and on schedule.

End-to-End Project Management

We manage each stage of the project. The process stays organised, efficient, and in control from start to finish.

Built Around Quality

We maintain high standards on every project. We pay close attention to details, from structure to finish.

Practical, Bespoke Solutions

Each project is shaped around the property and the brief. We focus on how the space will function. No two buildings are the same, so our approach reflects that.

Access to Trade Pricing

We work with trusted suppliers. This often helps secure favourable material rates. Clients use budgets better and don’t compromise quality.

Compliance with UK Regulations

All work follows current UK Building Regulations and industry standards. We coordinate with Building Control where needed.

Clear Cost Breakdown

We provide a detailed, transparent cost breakdown. It is clear what is included at each project stage.

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