Putting to work the construction and renovations for a house extension is one thing, planning the budget and shouldering the house extension cost for the project is another. This is where people usually falter, because they underestimate the time and money needed to complete the extension project. So here are the things you need to know to plan out the budget for house extension cost.
The house extension cost depend on a variety of factors, and these include: your location in the country, specific building requirements, special foundation requirements, the inclusion of electrical or plumbing work, the adding of new rooms or equipment, and a lot of other things. The price range of some of the house extension cost depend whether the job is done by per square metre of the floor area or by house storey. And these jobs are not just electrical and plumbing work, but also plastering, floor work, and everything else.
Examples of House Extension Cost
Such examples of average house extension costs include the following:
| Kind of Job | Average Costs | Units |
| Garage Conversions | £14800 | Item/Job |
| Roof Work | £2000 | Item/Job |
| Plastering | £500 | Room |
| Single Storey Extension | £979 | Per Square Metre |
| Double Storey Extension | £1128 | Per Square Metre |
You need to pay attention to how much you are going to spend for your house extension, and see if the house extension costs are within budget. You should get some quotes before you get planning permission and see if these are any that you could afford. A useful suggestion is to enquire about the price range when you speak to the builders, and see if you could separate the payments into different parts based on which parts of the job are completed.
An example of how to break the payments down is described here in the chart below:
| Type of Work | Average Costs |
| Planning | £1, 000 - £3, 500 |
| Shell build (windows, eternal doors, roof works) | £600 per square metre |
| Fixture and fittings (from electrical work to plastering) | £400 per square metre |
| Decoration finishing | £10 - £15 per square metre |
Tips for Budgeting House Extension Cost
Here are also some extra tips in budgeting for your house extension cost, and you would certainly need them to keep your budget afloat.
- First of all, you need to be realistic to what kind of extensions and changes you want to happen to your house.
- Only take on an extension project that you could financially handle so you won’t over-stretch yourself.
- And try to do some of the work yourself to cut back some of the labour costs.
- Also, you need to set aside some extra money for emergency funds or adding new decorations and furniture to the house extension once the project is done.
Planning and sorting out the budget for your house extension cost takes a lot more work and is a lot more complicated to manage. It maybe difficult but adequate budgeting for improving your house and home is possible, as long as you are careful extra careful and mindful with how much you are willing to spend for the house extension cost.
All of the companies we use as part of our network of Reputable, Trusted, Fully Vetted and Recommended Home Improvement and Building Companies will be able to give you the actual house extension cost for your project at the cheapest possible price. They all know they are competing to give you the best House Extension Cost so you get the cheapest prices without any hassle.
Kit Homes Queensland QLD and NSW - We have a large range of steel kit homes, prefab homes and transportable homes. All our kit homes can be delivered world-wide.





