The cost to build a garage ranges from $35 to $60 per square foot on average, or $19,600 to $28,200 total for a 2-car garage. Most 2-car garages are 400 to 576 square feet in size.

A 2-car detached garage costs $20,000 to $57,600, depending on the material quality and finishes. A detached garage usually costs more than an attached garage because it has one more wall and is further from the home's electrical and plumbing connections.

Prefab or modular garage prices are $7,200 to $26,000 on average for a 2-car garage kit alone or $11,000 to $37,500 including installation and a concrete slab foundation. However, many HOAs don't allow prefab garages because some basic kits can be unsightly, which may lower property values.

Building a garage with an apartment costs $200 to $350 per square foot or $80,000 to $300,000 total on average, depending on the size. Adding an apartment to a prefab detached garage costs quite a bit less than a custom attached build.

Building a garage takes 6 to 8 weeks on average, depending on the size of the garage and whether the space will be finished or used as an apartment. Delays with the following factors will extend your timeline:

• Shipping
• Availability
• Backorders
• Permits

Garages add value to a home, giving homeowners a 60% to 80% return on investment (ROI) on average. Garages protect cars from bad weather, increase home security, add curb appeal, and give you more storage space. If your garage has a finished living space, you can generate income by renting it out.

Yes, you need a permit to build a garage. A permit for a garage costs $150 to $500, depending on local pricing. Structural work, electrical wiring, and adding plumbing may require multiple permits.

Most cities require a setback of 5 to 15 feet from the property line for garages and sheds, although local regulations differ. Setback requirements may be different if you're building a garage in your backyard or in front of a house. Double check local building codes to confirm before starting any projects.

While hiring garage builders, remember these steps:

• Get multiple estimates from builders.
• Look for professionals with experience installing garages.
• Explore reviews on HomeGuide and Google.
• Choose a licensed, insured, bonded, and reputable builder.
• Avoid the lowest bids, which usually indicate low-quality work.
• Get a detailed estimate before they start.
• Never pay in full before the job is complete.
• Ask if they'll provide a warranty on the labor or materials.

Ask these questions to find the best possible garage builder:

• How long have you been building or installing garages?
• Do you have any applicable certifications?
• Will you be using any subcontractors for this job?
• Do you recommend a detached or attached garage?
• How long will the garage take to build?
• Are you insured, licensed, and bonded?
• How will you handle any damage that might happen to my home?
• What does your warranty cover?