Planning A Home Extension? Let’s Bring It To Life

Create the extra space your home needs with an experienced Northampton building team that can take your extension from the first conversation through to completion.
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Create More Space Without Moving

Whether you need a larger kitchen, more living space or extra room for a growing family, a well-designed extension can transform how your home works for you.

We can help with:

  • Single-storey extensions
  • Double-storey extensions
  • Rear extensions
  • Side extensions
  • Wraparound extensions

Every extension is tailored to your home, your needs and the space available.

Already have plans or drawings? Send them over and let’s discuss your project.

Discuss My Extension

Northampton Builders With 25+ Years of Experience

Choosing the right builder is one of the biggest decisions you’ll make when extending your home.

With 1Horizon, you’ll benefit from:

  • 25+ years of construction experience
  • Full project management
  • An experienced, accredited team
  • Clear communication throughout your build
  • Transparent quotations with no hidden costs
  • Support from initial planning through to handover
  • A Northampton-based team covering the surrounding area
Discuss My Extension

Ready To Get Started?

Transparent Pricing

Full Design & Build Services

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Project Management From Start To Finish

You shouldn’t have to coordinate multiple people to get your project moving.

We can support you throughout the build, helping to make the entire process clearer and easier to manage.

1. Tell Us About Your Project

1. Tell Us About Your Project

Talk us through what you want to achieve, your property and any ideas or plans you already have.
2. Planning & Preparation

2. Planning & Preparation

We’ll assess your requirements and help establish the right route forward for your extension.
3. Construction & Project Management

3. Construction & Project Management

Our team manages the build, coordinates the work and keeps you informed as your extension takes shape.
4. Completion & Handover

4. Completion & Handover

Once the work is complete, we carry out final checks before handing your new space over to you.

See What We’ve Been Building

Like What You See? Let’s Talk About Your Home.

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Looking For A Home Extension Builder In Northampton?

1Horizon is based in Northampton and works with homeowners across the surrounding area, including Milton Keynes, Bedford and Rugby.

Do we cover your postcode?

Send us your details and our team can let you know.

25+ Years Experience

83+ Completed Projects
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Area We Cover

Have Plans Already? Send Them To Us.

If you already have drawings, plans or a clear idea of what you want to build, you don’t need to start from scratch.

Tell us about your proposed extension and upload your drawings when you enquire. Our team can review your project and discuss the next steps with you.

Send Us Your Plans

Let’s Talk About Your Extension

The sooner we understand what you want to achieve, the sooner we can help you work out the best way forward. Get in touch today for a free, no-obligation quote.