Extending your home is a great way to add space and value without the hassle of moving. But when planning an extension, one key decision stands out: should you go for a single-storey or a two-storey extension? Each option has its own benefits, costs, and planning considerations. In this article, we will analyse both options to help you make the best choice for your home and lifestyle.
Single-storey house extension
A single-storey extension involves adding extra space to your home on the ground floor. This is a popular option for homeowners looking to expand their kitchen, create a larger living area, or add a home office.
Planning permission and regulations
In many cases, a single-storey house extension can be built under permitted development rights, meaning you don’t need to apply for planning permission. However, there are some restrictions. For example, a single-storey 3-metre house extension is generally allowed for terraced and semi-detached homes, while detached houses can extend up to 4 metres without planning permission. If you want to go beyond these limits, you’ll probably need to apply for approval from your local council.
Benefits of a single-storey house extension
- More affordable: A single-storey extension is usually cheaper than a two-storey build, as it requires less structural work and fewer materials.
- Faster construction: Local extension builders offer quicker project completion times for single-storey extensions, often within a few months.
- Ideal for open-plan living: Many homeowners use single-storey side extension ideas to create a seamless connection between their indoor and outdoor space, enhancing natural light.
- Fewer planning challenges: As long as your extension meets size and height restrictions, you may not need planning permission, reducing delays.
Who should choose a single-storey extension?
This type of extension is ideal, if you need extra living space but don’t require additional bedrooms. It’s also a great choice if you have a large garden and want to create a bigger kitchen, dining area, or home office. With a variety of single-storey extension roof options available, you can design a space that perfectly matches your home’s style.
Double-storey house extension
A two-storey extension adds extra space to both the ground and first floors, making it a great option for homeowners looking for long-term value. This type of extension is often used to create extra bedrooms, bathrooms, or even a separate living area.
Planning permission and regulations
Unlike single-storey extensions, two-storey extensions are more likely to require planning permission. UK regulations state i.a. that a two-storey extension must not exceed the height of the existing house and should not extend more than 3 metres beyond the original rear wall. Working with experienced local extension builders can help you navigate these rules and design a compliant yet stunning extension.
Benefits of a two-storey extension
- Maximised space: If you need both extra living and sleeping space, a two-storey extension is the most efficient way to expand your home.
- Higher property value: Adding extra bedrooms and bathrooms can significantly increase your home’s market value, making it a smart long-term investment.
- More design options: Homeowners looking for two-storey extension ideas can benefit from flexible layouts, including additional en-suite bathrooms or even a separate flat for short-term rental.
- Better use of land: If you have limited outdoor space, building upwards allows you to increase your home’s size without sacrificing your garden.
Who should choose a two-Storey extension?
A two-storey extension is perfect for growing families who need additional bedrooms or homeowners who want to add a guest suite or a rental space. Although it requires more investment and planning, it offers long-term benefits by significantly increasing the functionality and value of your home.
Single-storey vs. two-storey house extension: how to decide?
Choosing between a single-storey and a two-storey extension depends on your budget, space requirements, and long-term goals. If you want a cost-effective and quick solution, a single-storey extension is ideal. On the other hand, if you need maximum space and a better return on investment, a two-storey extension is the way to go.
Regardless of your choice, working with experienced local extension builders ensures a smooth process and high-quality results. Whether you’re planning a single-storey rear extension or a full-scale two-storey addition, professional guidance will help you achieve the best outcome for your home.