How Much Does it Cost to Build a Garage? (Detached + Attached)

Adding a garage to a house—attached or detached—is feasible, but the financial implications vary widely based on several factors. The costs fluctuate depending on the materials used, the garage's size, and the design's complexity. For homeowners considering this addition, you'll want to consider the immediate benefits of garages, including convenience and increased property value. But don't overlook the potential challenges of such a construction. What often goes overlooked are the hidden costs and regulatory hurdles that can influence the overall budget and timeline of the project.

Garage Additions at a Glance

• You can add a garage to a house, either attached or detached, based on your preference and the available space.
• Attached garages typically cost between $22,000 and $52,000.
• Detached garages range in cost from $27,000 to $62,000, influenced by size and design.
• Costs per square foot are generally $55 to $65.
• Ensure compliance with local zoning laws and obtain necessary permits before construction.

Can You Add a Garage To a House?

Adding a garage to a house isn't only feasible—it's a strategic investment that can increase a property's value. For homebuyers deciding between a house and a condo, the flexibility to build additions is a significant benefit of a detached home. Thankfully for buyers, many townhomes and condos come with attached or detached garages. 

Whether homeowners opt for an attached, detached, two-car, or one-car garage, the decision can enhance a home's functionality and aesthetic appeal. The average cost of garage additions varies widely, influenced by design, materials, and location factors. 

Before constructing a garage addition, homeowners must obtain local permits and adhere to building codes. These regulations ensure that the construction is safe and compliant with local standards. In general, getting approval for a garage addition is easier than getting permits for a legal basement suite because garages don't need to meet liveability requirements.

Investing in a garage addition provides secure storage for vehicles and typically offers a high return on investment in Alberta and throughout Canada, enhancing home value by 60% to 80%.

Factoring in the total cost, including site preparation and utility connections, is crucial to ensuring the project aligns with one's budget and home improvement goals.

Steps to Building a Garage

When building a garage, homeowners should determine their budget and design needs to ensure the project aligns with their financial constraints and functional requirements. Next, gather the necessary permits and ensure the construction complies with local regulations and building codes.

Finally, a successful build requires finding a reliable contractor to execute the plan within the budget and timeline.

Determine Your Budget and Design Needs

Determining your budget and design needs is essential when building a garage. Throughout Calgary's dynamic neighbourhoods, the cost of building a garage ranges significantly—from $22,000 for a basic attached model to over $62,000 for a deluxe detached structure.

Decide whether you need an attached or detached garage. Attached garages generally cost 10% to 15% less because they share walls with the home.

The overall cost doesn't just include the structure itself; it also includes additional costs such as permits and inspections, which, depending on site conditions, can be upward of several hundred dollars. Don't forget to factor in site preparation costs and future utility needs, potentially adding another $2,000 or more to your total expenses.

Gather Necessary Permits

Before building a home addition like a detached or attached garage, all necessary permits must be obtained to ensure the project complies with local zoning codes and building regulations. This step involves submitting detailed documentation, including architectural plans, to the building authority.

These plans must reflect an understanding of building restrictions, such as proximity to other structures and height limits. This early engagement can also help understand any specific requirements for attached or detached garages, which may have different compliance obligations.

Inspections are another crucial aspect of the permit process in Calgary. They are mandated at various stages, such as foundation laying, framing, and final construction, to confirm safety and code adherence.

Each inspection is an opportunity to address potential issues that could delay the project or require costly modifications. Ensuring thorough preparation and compliance from the start can significantly streamline building a new garage.

Find a Contractor

Start by thoroughly researching and shortlisting experienced contractors to kick off your garage-building project. Starting with Calgary's top home builders can be helpful, but there are likely to be contractors who specialize in garages, too. Finding a licensed and insured contractor skilled in garage building is important. Ensure they are well-versed in local building codes and permit requirements.

Next, focus on obtaining quotes from these contractors. The price will depend mainly on your chosen materials and the project's scope.

During consultations with contractors, discuss your specific needs and expectations. This includes everything from the type of garage you envision to any special features you desire. Clear communication at this stage helps prevent misunderstandings and hidden fees later on.

Finally, when you've settled on a contractor, ensure a detailed contract is in place. This should outline project timelines, payment schedules, and exactly what the job entails. A well-drafted contract ensures both parties are clear about deliverables and responsibilities, paving the way for a successful garage construction project without any unwanted surprises.

How Much Does it Cost to Build a Garage?

The costs of garage construction can vary significantly between attached and detached models.

Cost of Building an Attached Garage

Attached garages typically range from $22,000 to $52,000. When building a garage, expect to pay between $55 and $65 per square foot, considering labour costs and materials used.

The price can range widely based on several factors, including site preparation, foundation requirements, and labour costs, as the project can demand skilled tradespeople at various stages of building a new garage.

The materials used to construct an attached garage significantly impact the total expense. Homeowners opting for higher-end finishes or custom features—common preferences for owners of luxury homes—should prepare for costs at the upper end.

Cost of Building a Detached Garage

Detached garages can cost between $27,000 and $79,000. For example, a standard two-car garage measuring 24x24 feet may cost $28,000 to $48,000, whereas a three-car garage measuring 40x30 feet could cost between $68,000 and $79,000.

Construction costs per square foot for detached garages average around $65.

Adding a Garage to a House Could Be a Smart Decision

Adding a garage to your house, whether attached or detached, is feasible but requires careful financial and design planning as the cost varies significantly. Key steps include setting a budget, obtaining necessary permits, and hiring a competent contractor. By managing these aspects, homeowners can successfully enhance their property with a new garage that meets their needs.