Obviously, the cost of building your own house in Spain varies according to the size and quality of the house and piece of land, and its location.

But whatever the type of house and wherever the land is, you will need to take the following inevitable expenses into account:

• Architect: Any house built in Spain must comply with local construction rules and plans must be designed and signed by a qualified architect. He or she will charge anything from 6% (minimum) to 10% of the overall building cost.
• Aparejador: This is the person who oversees the building process, making sure that the plans are respected and the materials described in the original project are used. He usually charges from 1 to 2 percent of the overall building cost. The architect might be able to recommend an aparejador.
• Building materials: These will be described in detail in the memoria de calidades and should be agreed between you and the architect before you meet with the aparejador and the builders. It is important to detail all building materiales in the memoria, because then the builders can be held accountable for any omissions or errors.
• Licencia de obra: your building permit will cost between 4 and 5% construction costs.
• Declaration of New Building: 0,5%
• Safety study: 0,8%
• Geological Report (not always necessary): 1%
• First occupation permit: 0,5%