If you're thinking about adding a single-storey extension to your home, it's important to know what can affect the cost. While the idea of more space is exciting, several factors influence the final price. In this blog, we’ll explain these factors to help you plan your budget for the extension.
What are the typical costs for a single-storey extension?
On average, building a single-storey extension in the UK costs between £1,000 and £1,300 per square metre. This covers the basic construction costs, but several factors can affect the final price, as explained below.
Key factors affecting extension costs
Size of the extension
The bigger the extension, the higher the cost. Larger spaces need more materials and take more time to build, which increases the price.
Design and complexity
A simple design will be cheaper, but adding features like skylights or unique designs will raise the cost.
Materials
The materials you choose also affect the price. Standard materials like bricks and tiles are more affordable, while premium materials like natural stone or custom windows can make the cost go up.
Location
Where you live can impact the cost. In cities, labour and materials are usually more expensive, while in rural areas, prices may be lower, but transport costs for materials can add up. It's helpful to research local prices when planning your budget.
Builder's fees
Builders charge different rates based on their experience and the complexity of your project. It’s a good idea to get quotes from a few builders to compare prices. Remember, the cheapest option might not always offer the best value, so be sure to check their previous work and customer reviews.
Additional costs to consider
Utilities and connections
If your extension includes a kitchen or bathroom, you'll need to consider plumbing, electrical work, and possibly gas connections. These costs can range from £1,500 to £4,000, depending on how complex the work is.
Plumbing installation
Installing plumbing for kitchens or bathrooms can be tricky. The cost depends on the existing system and the extension's location. Be sure to budget for both the installation and any upgrades to your current plumbing.
Electrical systems
You may need to upgrade your electrical system to accommodate the new space. This work should be done by a licensed electrician for safety. Costs will vary based on the number of outlets, light fixtures, and other electrical needs.
Gas connections
If your extension has gas appliances like a cooker or water heater, you'll need to install gas lines. This must be done by a professional to meet UK safety standards.
Landscaping and external work
Don't forget about the outside of your extension. Landscaping, driveways, and pathways can add £800 to £4,000 to your budget.
Garden landscaping
Landscaping can improve the look of your extension and add value to your property. Professional landscaping services can help create a beautiful and well-designed outdoor space that complements your new extension.
Driveways and pathways
If your extension affects your driveway or pathways, you may need to resurface or redesign them. Using quality materials can improve curb appeal and create a durable solution for daily use.
Fencing and boundaries
Consider adding or updating fences around your extension for privacy and security. Costs will depend on the materials and the size of the area.
Tips for managing costs
Set a realistic budget
Figure out how much you can afford to spend, including extra money for unexpected costs. A clear budget helps you avoid overspending on things you don’t really need.
Get multiple quotes
Always ask a few builders for quotes to compare prices and services. This helps ensure you get a fair deal.
Consider DIY
If you have the skills, try doing some work yourself, like painting or landscaping, to save on labour costs.
Plan for the future
Think about how your needs might change later. Designing your extension to be flexible can save you money if you need to make changes in the future.
Negotiate
Don’t be afraid to negotiate with builders or suppliers. Talking openly can help you get better prices or added value.
Financing your extension
If you're looking for ways to finance your extension, there are several options to consider:
- Savings: Using your savings is a straightforward way to fund your extension without taking on any debt.
- Remortgage: You could remortgage your property and borrow more than you currently owe to access extra funds.
- Personal Loans: For smaller extensions, a personal or unsecured loan may be a suitable option.
- Secured Loans: For larger projects needing more funding, a secured loan against your property might be a better choice.
For more details on financing options, check out our blog on loans for house extensions.
Summary
A single-storey extension can transform your home and add value, but it’s important to understand the costs involved. By considering all aspects of the project and planning carefully, you can create your dream space without exceeding your budget.
Loans are secured against property - Think carefully before securing other debts against your home. Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.
