The cost of an attic conversion depends on a variety of factors, including the size of the attic space, the complexity of the job, and any additional features required. The cost can range from $35,000 for a basic attic conversion to over $100,000 for a more complex job. This cost typically includes all the necessary materials, labour, and permits needed to complete the job. It is important to remember that the cost can vary depending on the size of the project and any special features that may be required. Additionally, the cost of any additional features, such as Velux windows, skylights, and insulation, should also be taken into consideration when budgeting for the project.