Double Storey Extensions: Everything You Need To Know

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CK Architectural York Double Extension Design Guide


Are you considering expanding your living space? Double storey extensions are a popular option for homeowners looking to add more room and increase the value of their property. In this article, we will provide you with all the information you need to understand double storey extensions and make an informed decision.

What is a Double Storey Extension?

A double storey extension involves adding two new floors to your existing property. This type of extension is a great way to maximize the available space without sacrificing your outdoor area. Whether you need extra bedrooms, a larger kitchen, or a home office, a double storey extension can cater to your needs.

Planning Permission

Before embarking on a double storey extension project, it’s essential to check if planning permission is required. While some smaller extensions may fall under permitted development rights, larger projects usually require approval from your local planning authority. Consulting with an architect or a professional building company can help you navigate the planning process.

Design Considerations

When planning your double storey extension, there are several design considerations to keep in mind. You should aim for a design that seamlessly blends with the existing structure, both externally and internally. It’s important to consider factors such as natural light, ventilation, and the overall aesthetics of the extension to ensure it complements your home.

Costs and Budgeting

Double storey extensions can be a significant investment, so it’s crucial to establish a budget early on. The cost will depend on various factors, including the size of the extension, the materials used, and the level of finishes. Consulting with multiple builders or contractors will help you get accurate quotes and compare prices.

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Benefits of a Double Storey Extension

There are several benefits to opting for a double storey extension. Firstly, you can significantly increase the living space in your home, allowing for more comfortable and functional living. This type of extension can also add value to your property, making it a wise long-term investment.

Choosing the Right Builder

Choosing the right builder is crucial to the success of your double storey extension project. Look for builders who have experience in handling similar projects and can provide references from previous clients. It’s also essential to ensure they are properly licensed and insured.

Timeline and Disruption

Double storey extensions are complex projects that can take several months to complete. It’s important to have a realistic timeline in mind and consider the potential disruption to your daily life during the construction phase. Discussing the timeline and any potential challenges with your chosen builder will help you manage your expectations.

The Final Result

Once your double storey extension is complete, you will have a beautiful and spacious home that meets your needs. Whether you choose to create additional bedrooms, a larger kitchen, or a new entertainment area, this extension will enhance your living experience and add value to your property.


Double storey extensions are an excellent way to expand your living space and increase the value of your property. By understanding the planning process, design considerations, and budgeting, you can make informed decisions throughout the project. Hiring the right builder and managing your expectations will ensure a successful outcome, resulting in a beautiful new space for you and your family to enjoy.

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