---
title: Transform Your Home with a Stunning Double-Storey Extension
description: Upgrade your home with a double-storey extension. Discover design ideas, various benefits, and planning tips to elevate your living space and add value.
image: https://blog.jmconstructionltd.co.uk/hubfs/01.%20Blog/Double%20Storey%20Extension.jpg
---
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# Transform Your Home with a Stunning Double-Storey Extension
# Transform Your Home with a Stunning Double-Storey Extension
by [James Murdoch](https://blog.jmconstructionltd.co.uk/author/james-murdoch)
July 16, 2024
Thinking about adding an extension, but want **more space than a single floor can offer**? A **double-storey extension** could be the solution you are looking for. This architectural design provides you with the **extra space you need** while **adding significant value to your property**.
In this article, we'll **explore everything you need to know about double-storey extensions**, including the **benefits, planning considerations and cost implications** of embarking on a project of this scale.
[](https://cta-redirect.hubspot.com/cta/redirect/8123916/c98fa96b-142a-4984-9fa2-4319aa9a2172)
## Benefits of a Double-Storey Extension
Let’s start by looking at the **benefits of adding a double-storey extension** to your home:
- **Maximise space**. A double-storey extension is an excellent way to maximise the available space in your property. Unlike single-storey extensions, which only expand horizontally, a double-storey structure increases both the ground and first-floor areas. This approach is particularly beneficial for growing families needing additional bedrooms, bathrooms or even a [home office](https://blog.jmconstructionltd.co.uk/inspiring-home-office-designs-for-maximum-efficiency).
- **Enhance property value**. Investing in a double-storey extension can substantially [increase your home's market value](https://blog.jmconstructionltd.co.uk/which-home-improvements-add-the-most-value-in-the-uk). Properties with additional living space are highly attractive to potential buyers, ensuring a good return on investment. As a result, a well-designed extension can make your home stand out in the competitive UK property market.
- **Improve aesthetic appeal**. Finally, a double-storey extension can dramatically improve your home's kerb appeal. Modern architectural designs can blend with your existing structure, creating a cohesive and visually appealing façade. The added space also offers an opportunity to modernise interiors, incorporating [contemporary design elements](https://blog.jmconstructionltd.co.uk/incorporating-contemporary-interior-design-into-your-home) that enhance the overall aesthetic of your home.
## Planning Your Double-Storey Extension
Before embarking on a double-storey extension, it's important to first assess your **needs and goals**. Consider **how the additional space will be used** and **what specific features you require**. Working with an **experienced architect** can help you **visualise the potential of your extension** and guarantee that it **meets your expectations**.
You will also more than likely need to **apply for [planning permission](https://blog.jmconstructionltd.co.uk/navigating-planning-permission-for-extensions)** before starting construction. The only exception where UK planning permission is not required for a double-storey extension is if it falls under [**Permitted Development Rights**](https://blog.jmconstructionltd.co.uk/what-is-permitted-development-and-what-is-covered-under-pdr). However, these rights come with **stringent criteria and limitations**:
- **Location**. Two-storey and first-floor extensions are only permitted at the rear of the property.
- **Height**. The height of the double-storey extension must not exceed the height of the existing house eaves.
- **Area**. The double-storey extension must cover less than 50% of the total free area around the house.
- **Width**. The width of the double-storey extension must be less than 50% of that of the existing house
- **Length**. The maximum length of a rear double-storey extension is 3m for terraced or semi-detached houses and 4m for detached houses
- **Appearance**. The exterior appearance must blend in with the existing house and surrounding properties.
If your double-storey extension does not meet all the above criteria, then you will need to **apply for planning permission**.
Finally, regardless of whether or not you need planning permission, your double-storey extension will need to **meet all UK building regulations**. These regulations cover aspects including **structural integrity, [fire safety](https://blog.jmconstructionltd.co.uk/part-b-building-regulations-for-fire-safety), insulation and energy efficiency**. Working with a **professional builder who understands these regulations** will ensure your double-storey extension meets all necessary standards.
## How Much Does a Double-Storey Extension Cost?
**How much** does a double-storey extension cost on average? And what are your options in terms of **financing**?
Costs can **vary widely** depending on **size, complexity and location**. However, to give you an idea, on average, homeowners in the UK can expect to spend between **£1,500 and £2,500 per square metre**. Above all, make sure you **set a realistic budget** and include a **contingency fund** for unexpected expenses.
In terms of financing, you have a few options. These include **savings, home improvement loans and remortgaging**. It’s always best to **consult with a financial advisor** who can help you **choose the best option** for your circumstances and ensure you have the necessary funds to complete your project.
Finally, while a double-storey extension represents a **significant investment**, it's important to consider the **long-term value** it adds to your property. In addition to the immediate benefits of **increased space and improved living conditions**, the **enhanced property value** can provide **substantial financial returns** if you decide to sell your home in the future.
## Design Considerations
A key consideration when designing your double-storey extension is making sure it **blends in with your existing structure**. This involves **matching materials, rooflines and architectural styles**. Good integration **enhances the visual appeal of your double-storey extension** and ensures the new space feels like a **natural extension of your home**.
**Lighting** is another important aspect to consider when you design your double-storey extension. For instance, incorporating **ample windows and skylights** can maximise natural light and create **bright, airy interiors**. Consider using **modern glazing solutions** to improve** energy efficiency and reduce heat loss**, making your home more sustainable.
In terms of layout, consider the **flow between rooms** and **how the extension will connect with your existing layout**. Open-plan designs are popular for their spacious feel, while strategically placed partitions can create cosy, private areas.
## Potential Challenges
It’s also important to anticipate **potential challenges and delays** when you plan your double-storey extension as these can **impact your timeline and budget**.
For instance, it can often take a **long time to obtain planning permission** for a double-storey extension, so make sure you **submit your application as early as possible** and stay in close communication with your **local planning authority** to address any issues as soon as they arise. Additionally, **compliance with [building regulations](https://blog.jmconstructionltd.co.uk/building-regulations-uk-what-you-need-to-know)** can introduce further delays, particularly if adjustments need to be made to your plans to meet **safety and structural standards**.
Aside from the above, **unexpected costs** can arise during any construction project. To avoid **budget overruns**, it's important to **set a realistic budget** and include a **contingency fund** for unforeseen expenses. In addition, **regularly review your budget** and **keep track of all expenses** to help you stay on track financially.
Lastly, consider the **potential disruption to your daily life** during construction. **Plan your project timeline carefully** and **communicate any concerns to your builder** to minimise this disruption. In some cases, you might need to **temporarily relocate** during the most intensive phases of construction.
## The Importance of Hiring Skilled Professionals
Hiring **[skilled professionals](https://blog.jmconstructionltd.co.uk/how-to-choose-a-home-improvement-company)** for your double-storey extension is essential for a **smooth and successful project**. Experienced **architects, builders and project managers** bring **valuable knowledge and expertise**, which are crucial for handling the complexities of the design and construction process.
For instance, an **experienced architect** can help you **design a space that meets your needs and complies with local planning rules and building regulations**. They know how to make the most of your space, choose the right materials and ensure the structural soundness of your extension.
**Professional builders**, in turn, are vital for **turning the architect's plans into reality**. They have the skills to manage the construction work efficiently and make sure that everything is **built to high standards and within the agreed timeframe**. They also adhere to **safety regulations**, which is important for the well-being of both the construction team and the occupants of the house.
Lastly, a good **project manager** can **oversee the entire process**, coordinating between architects, builders and other tradespeople. They help keep the project on track, handle any issues that arise, and stay within budget.
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###### Tags:
[home extension](https://blog.jmconstructionltd.co.uk/tag/home-extension)
Post by [James Murdoch](https://blog.jmconstructionltd.co.uk/author/james-murdoch)
July 16, 2024
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