Attached vs. Built-In Garages: What Are the Differences?​

If you’re building a new home from scratch or doing major renovation, you may be debating attached vs. built-in garage styles. Both types of garages are attached to the home, but there are some key differences. The attached style is an extension of your home, while the built-in is literally “built into” the house’s structure. The two designs also come with separate price tags. Most homeowners pay about $30 per square foot for an attached garage. Prices go up to between $40 and $70 per square foot for a detached garage. Read on for more insight into the pros and cons of each garage style. 

Attached vs. Built-In Garage: Key Differences

The primary distinction between an attached and a built-in garage is their physical connection to the house's main structure. An attached garage is directly connected to the home, often sharing one or more walls, providing convenient and direct access to the interior. On the other hand, a built-in garage is an integral part of the original house design, seamlessly blending into the architecture. 

While both options offer shelter for vehicles and additional storage, the choice between attached and built-in garages hinges on factors such as your preferred garage size and functionality. If you only need a one-car garage, your needs may look very different than someone who requires a three-car garage.

What Is an Attached Garage?​

An attached garage is an extension of the main house structure, directly connected and accessible from the interior.

Best for:

• Homeowners seeking direct and convenient access to their vehicles.

• Those who prioritize a cohesive architectural design.

• A dual-purpose, like a home gym or workshop.

Pros of Attached Garage

The primary advantage of an attached garage is how accessible it is. Homeowners can enjoy direct entry into their house, which is especially helpful during messy weather or late-night arrivals.

Another benefit is its ability to seamlessly integrate with a house’s architecture, creating a harmonious design that can boost the home’s curb appeal.

Attached garages also offer homeowners a multi-functional space that could work as a home gym, office, or additional storage. This flexibility allows for efficient use of square footage and adds value to the overall living experience.

Cons of Attached Garage

As convenient as an attached garage can be, the placement and design can limit the overall architectural flexibility of the house. In some cases, it may influence the layout and limit options for exterior modifications or expansions, constraining the homeowner's design choices.

A second drawback of attached garages is the potential for noise and odor transmission. Unpleasant sounds from engines and power tools and fumes from chemicals stored in the garage can permeate into the house. Depending on the placement of the attached garage, there can also be limitations on the amount of natural light reaching rooms in the house.

What Is a Built-In Garage?

Unlike an attached garage, a built-in garage is literally "built into" your house at the ground or basement level. It doesn't have its own roof, but rather, the living space above the garage acts as the garage's roof. 

Best for:

• People looking to maximize natural light in both the garage and adjoining rooms.

• Homeowners seeking greater architectural flexibility and customization options.

• Those who prioritize minimizing noise and odor transfer into the living space.

Pros of a Built-In Garage

Built-in garages provide homeowners with greater flexibility in designing the overall layout of their homes. This design freedom allows for varied placements and configurations, enabling a more customized and unique architectural expression. The separation of a built-in garage from the main living space also minimizes the transfer of noise and odors into the home. 

Want to keep things light and bright? Careful planning in the design of a built-in garage can increase natural light in both the garage and adjoining rooms. This lets you enjoy a brighter and more naturally illuminated living space.

Cons of a Built-In Garage

Depending on the overall house design, a built-in garage may have space limitations compared to attached garages. This could impact the available square footage for vehicle storage or additional usage. The cost to build a garage is also a concern here—the initial construction of a built-in garage can contribute to higher overall building costs. Homeowners should consider their budgets when opting for this garage type.

Unlike attached garages, built-in garages may lack the convenience of direct entry into the living space. Homeowners may need to walk through their basement and climb stairs from their garage to their home.

Attached vs. Built-In Garages

Whether an attached or built-in garage is right for your home depends on your priorities—and your budget. If you’re really stumped between an attached or built-in garage, you can always consult a professional garage builder near you to look at your property and offer input on the best fit.

Here’s a quick look at how these two garage types stack up. 

Appearance​: Tie

The appearance of an attached garage often blends seamlessly with the overall design of the house, creating a cohesive and unified exterior. However, its aesthetics heavily depend on the homeowner's preferences and architectural choices. Built-in garages offer architectural freedom and design flexibility, allowing for diverse styles and customization options. The winner in terms of appearance is subjective and depends on individual preferences.

Options and Customizations​​: Built-In Garage

Built-in garages excel in options and customizations, as they offer greater design freedom during the initial construction phase, allowing homeowners to integrate unique architectural elements, choose various materials, and tailor the garage's features to their preferences.

Durability​​: Tie

The durability of both attached garages and built-in garages depends on the construction quality and materials used. Proper maintenance is crucial to ensure the longevity of either garage type and life span can be influenced by exposure to the elements.

Price​: Attached Garage

Typically, adding an attached garage will have lower initial costs compared to building a house with a built-in garage. That being said, construction costs for attached garages can vary based on size, materials and complexity of the design.

Ease of Installation: Attached Garage

Adding an attached garage can be a more straightforward process, especially if the house was designed with future expansion in mind. With an attached garage, you just build it adjacent to your house, whereas a built-in garage has to be built during a home construction or major renovation project. This makes the attached garage installation process more manageable for DIY enthusiasts. 

Ease of Repair: Attached Garage

Repairs to an attached garage may be more straightforward, as access is often easier. DIY repairs, such as addressing minor garage door opener issues, are more manageable for attached garages.