How Much Does It Cost to Build a Garage? 🚗 A Homeowner’s Guide

Thinking of adding a garage? Whether you want storage, security, or extra value for your home, the first question is always: how much does it cost to build a garage?

Let’s break down costs, materials, and key factors so you can plan your project with confidence.

Average Garage Building Costs

The cost of building a garage varies widely depending on size, materials, and whether it’s attached or detached.

Type of Garage	Size	Average Cost Range	Best For
Single-Car Attached	12×20 ft	$10,000 – $18,000	Budget-friendly, smaller homes
Two-Car Attached	24×24 ft	$20,000 – $35,000	Families, suburban homes
Detached Single-Car	14×20 ft	$12,000 – $22,000	Homes without side access
Detached Two-Car	24×24 ft	$25,000 – $45,000	Larger yards, added privacy
Custom/Luxury Build	30×40 ft+	$50,000+	Workshops, storage + living

“A detached garage usually costs more than attached due to extra foundation and utility work.”

Key Cost Factors

• Size & Design – Bigger garages with custom layouts cost more.

• Foundation – You’ll need to factor in how much does it cost for concrete, which can run $4 – $8 per square foot.

• Roofing & Siding – Premium siding or metal roofing boosts durability but raises the budget.

• Doors & Openers – Garage doors are a big expense. If you’re replacing an old one, consider how much does it cost to replace garage door springs, which is usually $150 – $350.

Attached vs. Detached Garage

• Attached Garage – Cheaper, easier to connect utilities, but less privacy.

• Detached Garage – Higher cost, more flexible placement, can double as a workshop.

Additional Expenses

Here are some extra costs that often surprise homeowners:

• Permits: $500 – $2,000 depending on city.

• Electrical Wiring: $1,000 – $3,000.

• Plumbing (if adding a sink/bath): $1,500 – $5,000.

• Finishes & Storage: Built-in shelves, drywall, or epoxy floors can add thousands.

For flooring upgrades, see our guide on epoxy garage floor cost to compare finishing options.

Pros and Cons of Building a Garage

Pros

• Protects vehicles from weather

• Boosts home resale value

• Adds storage and workspace

Cons

• Significant upfront investment

• May require zoning approval

• Ongoing maintenance costs

“Think beyond today’s needs—designing extra space now is usually cheaper than expanding later.” 🏠

Conclusion

So, how much does it cost to build a garage?

Expect $10,000 – $45,000+ depending on size, materials, and whether it’s attached or detached. Add in concrete, doors, and finishing touches, and your final price will reflect both your needs and your long-term vision.

FAQ

How much does it cost to build a garage? Building a garage typically costs $10,000 – $45,000+, depending on size and materials.

How much does it cost for concrete in a garage? Concrete costs around $4 – $8 per square foot, plus labor.

How much does it cost to replace garage door springs? Expect $150 – $350 for spring replacement, depending on door type.

Does a garage increase home value? Yes, a garage can increase property value by 5–15%, depending on location and style.