BUILD COST CALCULATOR
How much will your build cost ?
One of the most important aspects when planning your self-build or home renovation / extension project is working out how much it is going to cost . This figure will depend on the size and shape of the house , the level of your own involvement , where in the country you intend to build and the materials you ’ re going to use . If you can make even rough decisions about these factors then you can begin to work out how much it is going to cost . As a very general rule of thumb , expect a building plot to cost between a third and a half of the end value of the finished house . The costs of building a house will then depend on the variables listed above . All building work is usually quoted on a cost / m2 basis . For example , a typical new four bedroom self-built home is around 200m2 ( with 100m2 per storey ) and usually varies between £ 1,500- £ 2,000 / m2 ( although selfbuilders achieve costs between £ 1,000- £ 4,000 / m2 ).
Photo : Simon Maxwell .
Renovation costs are more difficult to establish as they involve many variables , but allow at the very least £ 1,750 – £ 2,500 / m2 for work plus VAT . This , added to the cost of the plot / house and with a 10-30 per cent contingency , should result in less than the final end value of the house .
Want more build cost advice ?
Visit our interactive build cost calculator online , which guides you through the process : homebuilding . co . uk / calculator
Build with Confidence
The Structural Timber Association has a mission to enhance quality through research , training and guidance . This is underpinned by STA Assure , which recognises the independently accredited standards held by individual member companies .
Look out for the STA Assure logo when choosing your structural timber system supplier – and build with confidence .
Why choose an STA member for your project ?
• Our members adhere to the highest standards of technical excellence
• Your home will be manufactured in a factory • STA members have access to the latest in education , skills training and technical support
• They adopt good environmental principles , with products from well managed sustainable sources .
For more information go to : structuraltimber . co . uk / self-build
The Homebuilding & Renovating Show homebuildingshow . co . uk 17