Don’t Forget the Extra Fees
* Legal Fees: £500-1,000
* Stamp Duty and Land Tax: The tax is cur*rently levied at 1% for plots valued from £175,001 to £250,000, 3% for plots valued from £250,001 to £500,000 and 4% over £500,000
* Topographical Site Survey: Typical cost £350-500
* Design Fees: Architects charge 7-15% of the total build cost for a ser*vice involv*ing design and supervision. For planning drawings from other sources expect to pay from £2,500-3,500, plus a similar figure for Building Regulations drawings
* Structural Engineers’ Fees: £400-500
* Planning Application Fees: £335
* Building Regulations Fees: £500-1,000
* Warranty: Around 1% of contract value
* Self-build Insurance: £500-800
* Services: Typically £3,500-6,000 total
* Demolition Costs: Typically £5,000-10,000
* External Works: Around 15% of total build cost
http://www.homebuilding.co.uk/self-build/project-tool-kit/build-cost-calculator