Can You Build An ADU Above Your Garage? Everything You Should Know

Building an Accessory Dwelling Unit (ADU) above your garage is an excellent way to maximize your property’s potential. These structures can provide additional living space, generate rental income and increase your home’s value. If you're considering an above garage ADU in Seattle, CRD Design Build is here to guide you through the process, ensuring your project is a success from start to finish. Here’s a helpful guide to introduce you to the world of above garage ADUs.

Your Comprehensive Guide to Above Garage Accessory Dwelling Units

What is an Above Garage ADU?

What is an Above Garage ADU?

An above garage ADU, also known as an over garage ADU, is a secondary housing unit built on top of an existing or new garage. Because it offers many purposes like a rental unit, a guest suite or a home office, this type of ADU offers the perfect blend of privacy and functionality. At a glance, the key advantages of an above garage ADU include:

• A more efficient use of space without expanding your home's footprint through a costly addition
• Added privacy for occupants
• The potential for rental income
• Enhanced property value

Benefits of Above Garage ADUs

Above garage ADUs offer tons of benefits, making them an attractive option for homeowners in Seattle. Here are some of the benefits we’ve shared with our clients:

• Maximized Space Utilization: By building vertically, you avoid using up valuable yard space, preserving your garden or outdoor area. It’s like getting the best of both worlds: outdoor space and additional square footage.
• Increased Property Value: An ADU can significantly boost your property’s market value and have become quite popular in the Seattle area.
• Rental Income: Whether long-term or short-term, renting out your ADU can provide an alternative income stream.
• Flexibility: Above garage ADUs can evolve over time and be adjusted as needed to serve various purposes. For example, it can start as a home office and then be transitioned to a guest suite.
• Sustainability: Utilizing existing structures reduces the environmental impact compared to building new standalone units.

Design and Layout Options

When it comes to designing your above garage ADU, the possibilities are truly endless, as our designers can attest. Depending on your needs and preferences, here are a few options to get you started:

• Studio Apartments: Ideal for single occupants or as a rental unit that can also be used as a home office for remote work
• One-Bedroom Units: Great for couples or small families
• Family Rooms: Perfect for guest accommodations or for multi-generational living arrangements

Innovative design examples include:

• Open-Concept Studios: Featuring multifunctional furniture like Murphy beds or pull out sofas to make the most of every square foot
• Modern One-Bedroom Units: Smart home technology is a great addition to modernize and optimize this type of space
• Multi-functional Family Suites: Incorporate multi-purpose spaces like a combined bathroom and laundry room to maximize space

Building Process

The process of building an above garage ADU involves several key steps so that you end up with results you love. Here’s a quick overview from our team of pros:

• Planning and Permits: This process can feel overwhelming, so we recommend consulting with a design-build firm like CRD Design Build. Our pros are well-versed in creating a detailed plan and obtaining necessary permits from the city of Seattle, thus making the process more streamlined and less stressful for you.
• Design: We also recommend that you work with architects and designers to create a functional and aesthetically pleasing ADU layout. This is the best way to ensure the results are exactly what you have envisioned.
• Construction: Experienced builders will handle the construction, ensuring quality and compliance with local building codes.
• Finishing Touches: Interior design and landscaping will complete your ADU, making it ready for occupancy.

Return on Investment (ROI)

Investing in an above garage ADU can yield significant returns, especially in a hot market like Seattle’s. Not only does it enhance your property value, but it also offers potential rental income for either long-term or short-term tenants. If you’re a small business owner, freelancer or remote worker, an above garage ADU allows you to skip renting a costly workspace or office. 

In terms of Seattle’s competitive rental market, an ADU can also attract high-quality tenants, thus providing a steady revenue stream. Additionally, the flexible nature of ADUs means they can adapt to different uses over time, ensuring long-term value.

As you can see, building an above garage ADU offers numerous advantages, from maximizing space and generating income to increasing your property value. With the expertise of CRD Design Build, you can create a beautiful, functional living space above your garage that meets your needs and exceeds your expectations. Whether you're looking to accommodate family members, generate rental income or simply add value to your home, an above garage ADU is a smart, versatile solution—and one we’d love to explore further with you! Contact CRD Design Build today to start planning your project.