As previously stated, the mortgage draw downs that you receive from the bank for your build will basically only cover the bones of your stucture. You will therefore require a tool that can help manage your finances, such as Microsoft Excel. Microsoft Excel is an excellent tool to use to track your finances and manage your projected goals. There are various templates for self builds scattered around the internet. Below you can see an example template for costings that were generated in 2019.
Note: There has been a significant increase in prices due to COVID-19 and Brexit. Be aware that prices will differ. The main object of this example is to demonstrate the use of Microsoft Excel for tracking your finances.