A basic garage capable of fitting one parked vehicle inside costs $35-45 per square foot to build as of November 2010. Most single-car garages are approximately 240 square feet or $8,400-$10,800 to complete the job.
For better quality materials, construction of a garage in November 2010 costs about $55 per square foot, the equivalent of $13,200 for the space to fit one car.
Certain cities require permits be obtained prior to building your garage and prices will vary in each location. Building a garage in a difficult setting or hard-to-reach area can be another price factor. Also, if the site that you intend on building your garage requires excavation, laying slabs or pouring concrete prior to construction, the job will be more expensive.