Surrey Homebuilding & Renovating Showguide 2023(clone) | Page 20

SELF BUILD ZONE

How Much Will Your Build Cost ?

One of the most important aspects when planning your selfbuild 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 , fittings and fixtures 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 / m ² basis . For example , a typical new four bedroom self-built home is around 268m ² ( with 134m ² per storey ) and usually varies between £ 1,750 - 2,500 / m ² ( although self-builders achieve costs ranging from £ 1,000 - £ 10,000 / m ²).
Photo : Simon Maxwell .
Want more build cost advice ?
Renovation costs are much more difficult to establish as they involve many variables based on the condition of the property , but a good starting point for an extension or major renovation is to allow £ 2,000 / m ² for work ( plus VAT ). This , added to the cost of the house and with a 10-30 per cent contingency , should ideally result in less than the final end value of the house .
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 ? n Our members adhere to the highest standards of technical excellence . n Your home will be manufactured in a factory environment to strict auditable quality standards .
For more information go to : structuraltimber . co . uk / self-build
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