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Build a Garage: What You Need to Know Before You Start

A Complete Guide from a Professional Remodeling Company

Adding a garage to your home is more than just creating a place to park your car. Whether you need extra storage, a workshop, or a future guest suite, a well-planned garage can significantly increase your home’s value, function, and curb appeal.

But before you break ground, it’s important to understand what goes into a successful garage construction project. As a professional remodeling and construction company, we’ve put together this guide to help you plan, design, and build the perfect garage—on time and on budget.

Why Build a Garage?

Here are just a few reasons why homeowners choose to build or remodel a garage:

  • Secure parking and protection from weather
  • Storage space for tools, bikes, and seasonal items
  • Hobby space or workshop
  • Home office or studio area
  • Potential rental income from an accessory dwelling unit (ADU)
  • Added property value

No matter your reason, a well-built garage is a smart long-term investment.

Step 1: Choose Between Attached and Detached

One of the first decisions is whether to build an attached garage or a detached garage. Each has pros and cons:

Attached Garage
✔ Easier to access, especially in bad weather
✔ Usually cheaper to build (uses an existing wall)
✔ Utilities like electricity or HVAC are easier to connect
✘ May require more complex permits and code compliance

Detached Garage
✔ More design flexibility and privacy
✔ Ideal for guest units, studios, or rental spaces
✔ Easier to add in tight or sloped spaces
✘ May cost more due to extra foundation, utilities, and roofing

Talk to your local garage builder or remodeling company to determine the best option for your property and budget.

Step 2: Plan the Size and Layout

Not all garages are created equal. Think carefully about how you want to use the space:

  • One-car garage (12′ x 20′) – Basic vehicle storage
  • Two-car garage (20′ x 20′ to 24′ x 24′) – Most common
  • Oversized garage (24′ x 30’+) – For trucks, boats, or workshops
  • Garage with loft or second floor – Adds storage or living space

Don’t forget space for shelves, workbenches, trash bins, or even a laundry area. If you plan to convert part of the garage in the future (e.g. to a home gym or guest suite), let your garage contractor know upfront.

Step 3: Understand the Permits and Local Regulations

Every city and county has its own zoning laws, building codes, and permit requirements for garage construction. Some things to check before building:

  • Property line setbacks
  • Maximum height and square footage
  • Driveway access rules
  • HOA restrictions (if applicable)
  • Foundation requirements

A professional construction and remodeling company will handle the permits and help ensure full code compliance.

Step 4: Think About Materials and Features

Your garage doesn’t have to be boring! When you work with an experienced garage builder, you can customize:

  • Exterior finish (brick, siding, stucco)
  • Roof style (gable, flat, hip)
  • Insulation and drywall for year-round comfort
  • Electricity and lighting (outlets, motion sensors, EV charging)
  • Storage solutions like built-in cabinets or ceiling racks
  • Garage door style (traditional, modern, insulated)

Adding windows, skylights, or even a side entry door can make your garage feel more like part of the home.

Step 5: Set a Realistic Budget

The cost of building a garage depends on several factors:

  • Size and complexity
  • Site prep and foundation work
  • Custom features and finishes
  • Utility connections
  • Local labor and material prices

On average, garage construction can range from $25,000 for a basic one-car garage to over $80,000 for a large, custom two-story garage with living space. A reliable remodeling contractor will give you a detailed estimate and help you stay within your budget.

Step 6: Work With the Right Contractor

The success of your project depends on choosing the right garage builder. Look for a team with experience in:

  • Custom garage construction
  • Residential remodeling and permits
  • Project management and communication

Check references, online reviews, and portfolios. Ask for a written contract that outlines the scope of work, payment schedule, and estimated timeline.

A professional remodeling company will keep you informed at every step and deliver high-quality results that last.

Step 7: Prepare for Construction

Once the plan is finalized, your contractor will take care of:

  • Demolition or excavation (if needed)
  • Foundation pouring
  • Framing, roofing, and siding
  • Electrical and mechanical installation
  • Interior finishes and inspections

Expect some noise and dust during construction. If the garage is close to your living space, make temporary arrangements for parking and access.

Step 8: Final Touches and Inspections

Before the project is considered complete, your contractor will:

  • Conduct a walkthrough with you
  • Handle final inspections
  • Complete any touch-ups or fixes
  • Make sure the space is clean and safe

Don’t forget to ask about warranties or ongoing maintenance.

Garage Add-Ons to Consider

Want to make the most of your new garage? Consider adding:

  • A carport extension
  • A mudroom or breezeway to the house
  • A loft with stairs for extra storage
  • An ADU conversion (Accessory Dwelling Unit) for guests or rental

These upgrades can maximize the function and value of your space.

Conclusion: Build Smart, Build with Pros

Whether you’re planning a basic structure or a custom dream garage, working with an experienced remodeling and construction company makes all the difference.

From concept to completion, the right contractor will guide you through design, permits, materials, and build—ensuring your garage is safe, beautiful, and built to last.

Ready to build your new garage? Contact us today to schedule a free consultation with a professional garage builder and start designing your ideal space!

Need Expert Help?​

Gadi Construction specializes in basement remodeling, ADU construction, and whole-home renovations. Contact us today for a free estimate and expert consultation!