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House Extensions in North Leeds & West Yorkshire

At Farswood Construction, we design and build high-quality house extensions across North Leeds and West Yorkshire, helping homeowners create additional living space without the need to move. Our fully managed extension service covers everything from groundworks and foundations through to final finishes, delivering a seamless, stress-free experience. 

Whether you’re planning a single-storey rear extension in Horsforth (LS18), a side or wraparound extension in Chapel Allerton (LS7), or a double-storey extension in Alwoodley (LS17), our experienced team ensures every project is built to the highest standards. 

Professional House Extension Builders in North Leeds

Extending your home is a major investment, and choosing the right builder is essential. With decades of combined experience, Farswood Construction has built a strong reputation as a trusted house extension contractor in North Leeds. 

We work closely with homeowners to understand their requirements, provide practical advice, and deliver extensions that enhance both day-to-day living and long-term property value. Our local knowledge allows us to navigate the common challenges associated with properties across Leeds, including access, ground conditions and planning constraints. 

Get a Free House Extension Quote in North Leeds

If you’re considering extending your home, speak to the local experts. Contact Farswood Construction today to arrange a consultation and receive a free, no-obligation quote for your house extension in North Leeds. 

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Types of House Extensions We Build

Single Storey Extensions

Single storey extensions are a popular way to add functional living space at ground level, often incorporating rooflights or large glazed doors to maximise natural light.

Double Storey Extensions

A double storey extension increases living space across two floors, commonly adding bedrooms, bathrooms or larger family layouts while maintaining balance with the existing home.

Side Return Extension

Side return extensions make use of unused side space, typically on terraced or semi-detached homes, to widen and improve ground floor layouts.

Rear Extension

Rear extensions extend out from the back of the property and are often used to create larger kitchens, dining areas or family spaces with improved access to the garden.

Wraparound Extension

A wraparound extension combines a rear and side extension to maximise ground floor space, often creating large open-plan kitchen and living areas.

Over-Structure Extension

Built above an existing structure such as a garage or ground floor extension, over-structure extensions add valuable space without reducing garden area and require careful structural planning.

What Our House Extension Service Covers

We deliver the full construction phase of your extension, coordinating all trades and elements required to complete the build properly.
  • Site Setup & Preparation
  • Groundworks & Foundations
  • Structural Alterations & Steelwork
  • Brickwork, Blockwork & External Structure
  • Roofing & Weatherproofing
  • Plumbing, Electrical & Heating Installations
  • Internal Works & Finishing
  • Final Completion & Handover

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Groundworks, Foundations & Structural Work

All successful extensions begin with solid preparation. Our in-house team carries out all necessary: 

● Groundworks and excavation 

● Foundations and drainage 

● Demolition and strip out 

● Structural steelwork and load-bearing alterations 

By managing these critical stages ourselves, we maintain full control over quality, timescales and site safety throughout the build. 

Design, Planning Permission & Building Regulations

Navigating planning permission and Building Regulations can feel overwhelming, but we guide you through every step. Depending on your project, your extension may fall under permitted development, or it may require full planning approval from Leeds City Council. 

We assist with: 

● Design development and layout advice 

● Planning applications where required 

● Building Regulations compliance 

● Liaison with inspectors and sign-off 

Our goal is to ensure your extension is fully compliant, structurally sound and future-proof. 

Plumbing, Electrical & Interior Fit-Out

Once the structure is complete, we carry out all internal works to bring your new space to life, including:

● Plumbing and heating installations

● Electrical wiring and lighting

● Carpentry and joinery

● Plastering and rendering

● Tiling, flooring and decorating

Because everything is handled by our own trusted trades, you benefit from a coordinated, turn-key service with consistent workmanship throughout.

House Extensions Across Horsforth, Roundhay & Surrounding Areas

We build house extensions for homeowners throughout North Leeds, including: 

Horsforth (LS18), Roundhay (LS8), Chapel Allerton (LS7), Moortown (LS17), Alwoodley (LS17), Adel (LS16), Cookridge (LS16), Headingley (LS6), Meanwood (LS6) and nearby West Yorkshire locations. 

Our local focus allows us to respond quickly, understand neighbourhood character, and deliver extensions that suit both the property and its surroundings. 

Frequently asked questions

These sets of questionnaires and answers by experts can help get a better understanding of our general remodeling services, timeline & process.

How much does a house extension cost in North Leeds?

The cost of a house extension depends on size, design complexity, ground conditions and materials. We provide accurate quotations following a site survey and design review. Most of our customers’ projects range from £50,000 – £350,000 worth of work, but not all jobs will be the same. Get in touch for a free site visit to start your free quotation. 

Do I need planning permission for an extension?

Some extensions fall under permitted development, others require planning permission. We’ll advise based on your property and manage the process if needed

How long does a typical extension take?

Most extensions take between 10–16 weeks once work starts, depending on size and complexity.

What type of house extension should I choose?

Common options include single-storey, double-storey, side-return and wraparound extensions. The best option depends on your property layout and space requirements. We will discuss options with you to make sure you are happy with the proposal and what you envision for the end result. 

Can you work while we live in the house?

Yes. Most clients stay in their homes during the build, and we plan work to reduce disruption.

Will an extension increase my property value?

Many extensions significantly increase property value, particularly when adding usable living space or improving layout functionality. By how much depends on your local area, property type and future valuations. In order to get an accurate estimation, book a valuation on your property with an estate agent. 

Do you handle foundations and structural work?

Yes. We carry out all groundwork, foundations and structural alterations as part of our service. 

Can you help with planning and design?

Yes. We assist with planning, design coordination and Building Regulations approval. 

Do you build extensions in Horsforth and Roundhay?

Yes. We build house extensions throughout North Leeds, including Horsforth, Roundhay, Chapel Allerton, Alwoodley, Adel and Cookridge 

. 

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Why Choose Farswood Construction for Your Extension

Homeowners across North Leeds choose Farswood Construction because we offer: 

  • A fully managed extension service from start to finish
  • Skilled, experienced tradespeople under one roof
  • Clear communication and reliable project management
  • High standards of workmanship and attention to detail
  • Honest pricing with no hidden costs

Our extensions are built to last and designed to improve the way you live in your home. 

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