If the area of the house or flat is greater than 125 sq. metres (1,346 sq. feet), some stamp duty is payable if the Chargeable Consideration is above the relevant exemption threshold. (The stamp duty is assessed on either the cost of the site or 25% of the cost of the site plus the building costs (less VAT), whichever is the greater figure. This figure is called the Chargeable Consideration.
This is the statement on the oasis web page. What I want to know is, when they say
"stamp duty is assessed on either the cost of the site or 25% of the cost of the site plus the building costs (less VAT)"
do they mean 25% of the site plus 25% of the building costs (less VAT) or 25% of the site and 100% of the building costs (less VAT)