The cost of a garage conversion can vary depending on the scope of the project and the size of the space. The most basic garage conversion will cost around $5,000, while a more complex and detailed project could cost up to $50,000. The cost of materials will also play a role in the overall cost of the project, with some materials costing more than others. Basic materials such as drywall and insulation will be cheaper, while more intricate features such as custom cabinetry and flooring will be more expensive. If a garage conversion involves moving or adding plumbing, electrical, or HVAC systems, that could also add to the cost of the project. Lastly, the size of the space will affect the cost of the conversion, with larger spaces requiring more materials and labour.