We’re constantly being asked how much building an extension Harrow costs, so we figured we’d address the issue with this post. It’s difficult to answer this question because of the factors involved, but we can still do our best to give you a rough estimate on what you can expet.
A Single Story Extension
We’ll start by looking at something simple like a 4M x 5M extension. The general rule of thumb is that each square metre costs around £1,000, but our experience shows us that a square metre costs between £1,200 and £1,500. There are some areas of London where you could be looking at up to £2,000 per square metre. This means that a 4 x 5M conversion would cost you around £24,000. Don’t forget the professional fees, which can bring up the cost another 10-15% and VAT. All in all you’re looking at around £32,000 for a single storey extension.
A Double Storey Extension
When it comes to the costs of a double storey extension, you can consider adding 50% to the cost of a single storey to be a good rule of thumb. £24,000+50% is £36,000. Add on the professional fees and the cost of VAT and you’re looking at a total of £48,000 for a double storey extension.
Those figures are the average for a typical and uncomplicated house extensions Harrow. There are some things that can drive the cost up, including:
Bathrooms and Kitchens
Add around £5,000 for a bathroom. The cost can be brought up or down a little with some smart choices. Add around £10,000 for a kitchen. Once again, the cost depends on your specifications.
Finishes and Fittings
The costs we’ve outlined assume you’ll have simple finishes, fittings, and electrical appliances. If you want something like tile or joinery, the costs will go up. Glazing also increases the costs.
Your builder has to include some additional costs depending on the soil type and condition of the ground, if they have limited access to the site, and if there is a need to alter the existing structure.
Managing Project Costs
1. Get professional advice from an architect. They will help you get what you want from the extension while reining in your costs. They get the most from your budget and recommend where to spend and when to avoid spending.
2. Get several quotes from several builders to get a good idea of the costs before beginning.
3. A good architect also helps in managing the building contract, ensuring you avoid unpleasant surprises. They inspect the work to ensure things are being done properly as well.
Finding the Right Architect
Every good project starts with finding a good architect. We’ve got plenty of experience in designing and building Harrow extensions. If you want some Harrow builders you can trust then get in touch with us today for a free quote and consultation. We’ll give you the closest possible estimate and help you get what you want out of your home extension.