Cost to Build a Garage: Average Prices, Factors, and What to Expect

Before a garage becomes a place for cars, tools, or weekend projects, it starts as a line item on a budget, and that number isn’t always obvious. From basic structures to custom designs, the cost to build a garage can shift quickly. Read our article to explore common price ranges, understand what factors influence them, and learn what to expect as your plans turn into construction.

How Much Does It Cost to Build a Garage? 

The first step of your planning should cover the upcoming expenses. This is the best way to keep your project on budget and avoid overspending.

• Single-car garage: $35–$55 per sq. ft.; around $7,000–$11,000 for 200 sq. ft.
• Two-car garage: $35–$60 per sq. ft.; about $14,000–$30,000 for 400–500 sq. ft.
• Three-car garage: $40–$65 per sq. ft.; roughly $24,000–$45,000 for 600–700 sq. ft.
• Custom garages: $50–$100+ per sq. ft., depending on size, materials, and extras.

Why such a wide range? Garage building costs vary a lot depending on what you want and where you build it. A bigger, nicer garage costs more. Land prep, permits, and local labor rates can also change the price. Custom touches add even further to the range.

​A custom garage gives you more options, such as lofts, built-in storage, or stylish doors, better matching your needs and style, but it also raises costs. While a basic garage keeps things simple and practical, it uses standard materials and designs.

Cost to Build a Garage by Type 

Attached Garage Costs

An attached garage tends to be more affordable than a detached one, typically $35–$50 per square foot for a basic two‑car layout, depending on size and finishes. A shared wall with your house reduces the work for foundation and framing, and makes connecting utilities easier.

You also get direct access from the house to the garage, which many homeowners love. The downside is that design options are more limited than those for a detached garage.

Detached Garage Costs

Detached garages can be pricey, often running $40–$70 per square foot. Each one needs its own foundation, walls, roof, and utility hookups, which adds to the overall budget. These garages can become quite expensive if they require a full foundation, separate utilities, or extra room.

Fancy finishes or unique layouts also increase the cost. Before starting, it’s important to consider local zoning and placement rules. Regulations can limit where the garage can be located and sometimes require additional permits or fees.

Garage with Living Space or Apartment

Adding a living space to a garage can increase the price. Finished garage apartments often run $200–$350 per square foot, or $80,000–$300,000 total, depending on size and how nice you make it.

Most of that extra cost goes toward plumbing, proper insulation, and a standalone HVAC system to keep the space livable. You’ll also need to finish the interior just like you would in a house.

Garage Construction Costs by Size 

One-Car Garage

• Size: Typically 240–384 sq. ft., offers enough room for a vehicle and a small workbench or shelving for tools.
• Estimated Cost: Usually around $15,000–$35,000 for basic construction, depending on materials, finishes, and labor in your area.
• Ideal Use: Great for parking a single car, storing bikes, seasonal items, or a few small household extras.

Two-Car Garage

• Size: Usually 400–576 sq. ft., provides space for two cars and some extra storage or a small workspace.
• Estimated Cost: Around $25,000–$50,000, with the final price based on the options you select for materials, finishes, and what local contractors charge.
• Ideal Use: Perfect for parking two vehicles, storing bikes and tools, or adding a workbench area.

Three-Car Garage

• Size: Generally 600–864 sq. ft., offers space for three vehicles and room for shelves or a work corner.
• Estimated Cost: Typically $40,000–$70,000, depending on your choices and local construction prices.
• Ideal Use: Ideal for parking multiple cars, storing seasonal gear, or creating a small workshop.

What Factors Affect the Cost to Build a Garage?

Materials

Materials matter! They set the foundation, layout, and overall budget of your garage.

• Framing: Wood is common and easy to customize. Steel can be cheaper and more durable.
• Roofing: Asphalt shingles are cheaper, whereas metal or tile roofs are more durable but cost more.
• Siding: Vinyl is affordable and low-maintenance. Fiber cement or wood is a more pricier option.
• Doors & Windows: Basic options save money. Insulated doors and extra windows add cost.

Labor Costs

Labor costs to build a garage can vary a lot depending on where you live. If you’re in an expensive city, contractors usually charge more, while smaller towns or rural areas tend to be cheaper. Hiring a professional means paying more upfront, but it can save you time and prevent pricey mistakes. The DIY route can reduce spending if you have the right skills, tools, and enough time to do it properly.

Permits and Local Regulations

Permits are part of the process and usually cost a few hundred dollars, depending on local rules. Bigger or more complex garages may cost more to approve. If you live in an HOA or a strict zoning area, you may face extra limits. These rules can affect size, placement, or design.

Utilities and Features

The features you choose shape how useful and expensive your garage becomes.

• ​Electrical: Adding lights and outlets is standard in most garages and typically doesn’t cost much. It makes the space usable for projects and everyday tasks.
• Plumbing: Installing sinks or a small bathroom can be handy, but it adds expenses and requires extra planning.
• Insulation: Keeps the garage warm in winter and cool in summer while also reducing outside noise.
• Heating/Cooling: Makes the space comfortable year-round for work or hobbies.
• Storage/Workshop: Built-in shelves, cabinets, or workbenches improve organization but also increase the overall price.

Cost to Build a Garage Per Square Foot 

A helpful way to plan your garage budget is to look at the cost per square foot. Basic garages cost $35–$70 per square foot, but bigger or custom garages can be more.

This number gives a rough idea of the cost to build a garage. Just multiply the square footage you want by the per-square-foot price. It offers you a starting point before getting quotes. Remember, the final sum depends on finishes and features. Adding insulation, electricity, plumbing, windows, or storage can increase the total.

The per-square-foot price can serve as a starting point. From there, you can adjust your numbers as you pick materials, features, and finishes to match your style and needs.

Is It Cheaper to Build a Garage or Buy a Prefab Kit? 

Adding a garage is exciting, but should you go prefab or build from scratch? Prefab kits are often cheaper upfront. Prices vary, but many basic kits cost a few thousand dollars, while larger or insulated garages can reach $15,000–$30,000.

The appeal of prefab is speed and predictability. Much of the structure comes ready-made, and some kits are simple enough to assemble yourself. You can save both time and money.

On the downside, prefab garages don’t offer full customization. You’ll still need a foundation, permits, and site prep. If you want a unique look, more features, or higher-end finishes, a traditional build is usually the way to go.

In short, prefab is ideal for simplicity and speed, while custom builds give you complete control over size, style, and extras.

How to Save Money on Garage Construction 

Building a garage can be expensive, but there are ways to save money without sacrificing quality.

• Keep the design simple: straight walls and a standard roof reduce labor and material costs. Avoid complicated shapes or extra features that drive up the price.
• Choose common materials: Standard siding, roofing, and doors are easier to get and install, which keeps costs down while still looking great.
• Get multiple contractor quotes: Comparing several estimates helps you find the best value and gives room to negotiate. Don’t settle for the first price you get.
• Build during off-peak seasons: Contractors often charge less in slower months, such as late fall or winter, when demand is lower.

Even small changes can make a big difference. With careful planning and smart choices, you can save money and still end up with a garage that’s practical, sturdy, and perfectly fits your home.

Should You Hire a Contractor to Build a Garage? 

Before you grab a hammer, think about the benefits of hiring a pro. A licensed contractor can save you a lot of headaches. Professionals know local rules, handle permits, and bring the right skills and equipment. They can complete the work efficiently and safely, and many offer warranties for peace of mind.

DIY can feel cheaper, but mistakes are costly. Poor construction can create hazards or require expensive fixes. Permits or inspections may also cause delays if the work isn’t up to code. If you want a smooth, stress-free build, a contractor is usually the smarter choice, especially for larger or more complex garages.

Planning Your Garage Build Budget 

A garage is more than just a place to park; it’s an investment in your home. From a one-car basic build to a three-car custom garage with a loft, the costs to build a garage depend on what you want and where you build.

Attached, detached, or with living space; each choice affects price and convenience. Features like electricity, plumbing, and storage add value but increase expenses. You can control your spending by simplifying design, picking standard materials, and planning your build for off-peak times.

With thoughtful decisions, you can get a garage that’s practical, stylish, and within your budget.