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Double Storey Home Extensions

Learn everything you need to know when looking to buy a double storey extension, from costs to planning considerations.
Where to begin with a Clearview double storey extension…

An increasing number of homeowners in Lancashire and Cheshire are choosing to add double-storey extensions to their existing properties instead of relocating, as it involves less upheaval and expense. Integrating a quality extension into your home can elevate your living experience, and you need a company with the expertise to manage and construct it. That’s where Clearview comes in.

We have expertly managed numerous home extension projects and earned many referrals from satisfied customers. Additionally, we hold all the necessary accreditations

What the cost implications of an extension may be…

Estimating the cost of a double-storey extension is challenging without knowing details about your home, its location, and the specific functional requirements of the structure. The intended use of the extension can significantly impact the overall cost, so please provide us with as much information as possible.

Additional factors that could affect the final price include the potential need to extend your heating system and upgrade existing electrical systems. Clearview will assess your situation and has expert teams to handle these tasks.

Two Storey Extension
Is planning permission going to be necessary to extend…

Yes, double storey extensions do not meet the criteria set for permitted development and therefore full planning permission is required. The Clearview team will manage the application process on your behalf, relieving concerns you may have.

Double Storey Extension - 3D Designs
Are building regulations likely to come into play…

Building regulations are separate from planning permission, and a double-storey extension must comply with them regardless of whether it requires planning permission.

They don’t just relate to the construction of the extension but also the following:

  • Foundations
  • Doors and windows
  • Drainage
  • Electrics
  • External and internal walls
  • Kitchens and bathrooms
  • The roof

Fire safety needs factoring in too, especially for extensions with two storeys or more.

Planning Permission for Double Story Extensions

Benefits of a double storey home extension

If it’s extra space you’re after and you have an emotional attachment to your home, why leave it? With a double storey extension from Clearview, you can create a thrilling new area to make memories in and prolong your stay. Savour the infinite day to day benefits of a home extension masterminded by you and the region’s doyen of extension designs, Clearview.

New Living Ideas

In its current form, your home may lack the space to accommodate e.g., an extra dining area or home office. Extending will see to that and can serve as just about any kind of room.

More Storage

We accumulate lots of belongings the longer we reside in a home, and it may be pushing yours to its limit. An extension will take the pressure off other rooms for housing vital and treasured possessions.

Custom Designed

You’re in control of how the extension is configured and the personal touches it incorporates, inside and out, as Clearview lets its customers tailor their house extensions to their taste.

Value Adding

Assimilating an extension into a property invariably adds immense value and can motivate buyers into paying more to secure it. As a rough estimate, it can boost the sales valuation of homes by around 20%.


Clearview is proud to be one of the few home improvement firms to hold both CHAS and Constructiononline accreditations, typically awarded to major construction firms. These certifications underscore our commitment to safety, quality, and operational excellence.

G23 Awards - Installer Of The Year Winner
CHAS Accredited Contractor
Constructionline Silver Member

Feeling inspired? Contact our team today.

Reach out and see why we should be your preferred build partner.

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“Considering it was a double storey extension, which you’d perceive would involve great complexity, Clearview tackled it with super efficiency and made easy work of what is a truly fantastic addition to our house.”

Double storey extensions – what happens next?

At a time convenient to you, we can either arrange a home visit or an appointment in one of our prestigious showrooms where we will discuss all the details of your project

Clearview Showroom Design Appointments

Showroom Visit

The perfect place to be inspired.  At our three luxury showrooms, we have a huge range of transformation styles on display to help inform your choice.  You’ll also have friendly advisors on hand for advice, and you can even see our 3D design service in action.

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Customer Advisor Appointment

Home Visit

The best place for us to discuss your double storey extension with you initially at your home.  We’ll be able to measure up ahead of an installation, and help you plan how best to use the space.  During a home visit appointment we’ll be able to give you a much clearer idea of what you’re looking for.

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Clearview Customers

Online Video Chat

Life can be busy, but that doesn’t have to stop you from exploring the options that we have or witnessing Clearview’s 3D design software in action.  Using a tablet or computer we can organise an online video chat to help you plan your dream extension.

Get in touch online
So much more than just a showroom
We’ve got dozens of product sets, hi-tech software, colour samples, and must-read brochures to embrace and enjoy, with experts to guide you at whatever stage you’re at in your buying. Basically, there’s inspiration at every turn in a Clearview showroom.

Experience the quality at your local Clearview showroom

Preston Showroom

Preston Showroom

Locate Clearview’s Preston showroom to the southwest of the city in Leyland and you’ll see an impressive showcase of ideas to help you make your choice. We’ve got dozens of roof styles, wall configurations, real room sets and window and door collections on display to help with your extension design.

Showroom Details & Directions
Nantwich Showroom, Cheshire

Nantwich Showroom

Cheshire householders can journey to Nantwich Trade Park seven days a week for a browsing of Clearview’s customisable products that can feature in your extension, including solid roof designs, energy efficient double and triple glazed windows and featured doors such as triple sliding patio & bi-folding doors. There’s a late-night opening until 8pm on Thursdays.

Showroom Details & Directions
Warrington Showroom, Cheshire

Warrington Showroom

Gemini Trade Park is one of Warrington’s most popular shopping destinations and Clearview can be found on it very close to Marks and Spencer. You’ll be blown away by exclusive product collections that will help you choose the perfect extension for your home.

Showroom Details & Directions

Feeling inspired? Contact our team today.

Reach out and see why we should be your preferred build partner.

Your details
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Want to speak with an advisor? Give us a call on 0800 011 2400

Our friendly team will be pleased to help with any questions you may have.