Pros & Cons of Detached vs. Attached ADUs

Accessory Dwelling Units (ADUs) have surged in popularity in recent years as homeowners seek creative ways to expand their living space, accommodate family members, or generate rental income. As a specialized category of residential expansion, ADUs can be separated into two main types: detached and attached.

In this blog post, we’ll explore the benefits and drawbacks of each option to help you decide which type of ADU is best suited for your home improvement project.

What is an Accessory Dwelling Unit (ADU)?

Before we dive into the pros and cons, let’s first define an ADU. An accessory dwelling unit is a secondary housing unit on a single-family lot. They can serve various purposes, from housing aging family members to providing an extra source of income through rental. ADUs have different names, such as granny flats or in-law suites, and are known for their versatility and ability to use space efficiently.

Detached ADUs: A Separate Oasis

Pros:

• Privacy: A detached ADU is a standalone structure, which means it offers a high level of privacy for both the occupants of the main home and the ADU.
• Property Value: Detached units often contribute significantly to the property’s value because they are viewed as independent living spaces with all the amenities of a small home.
• Design Freedom: Homeowners have more creative freedom when building a detached ADU since it doesn’t have to conform to the design or structure of the existing home.
• Multi-Use Potential: These units can also serve as home offices or studios, offering a quiet and separate workspace.

Cons:

• Higher Costs: Detached ADUs can be more expensive due to the need for separate utility connections, building foundations, and potentially more extensive construction work.
• Zoning Restrictions: Some areas may have stricter zoning laws concerning detached structures, affecting where and how you can build.
• Land Use: These units require more yard space, which may not be ideal for homeowners who wish to preserve their outdoor areas for other uses or have smaller lots.

Attached ADUs: The Convenient Extension

Pros:

• Cost-Effectiveness: Attached ADUs can be less expensive to build since they often share walls and utilities with the main house.
• Ease of Access: Being directly attached to the main home can be advantageous for family members who require regular assistance or want to feel more integrated with the household.
• Efficient Use of Space: They are an excellent option for making use of underutilized space within your property, like converting a garage or a basement.
• Streamlined Construction: Since attached ADUs use existing structures, the construction process can be more straightforward and encounter fewer regulatory hurdles.

Cons:

• Privacy Issues: With shared walls or entrances, there is inherently less privacy in an attached ADU.
• Design Limitations: Attached units might need to match the architecture of the existing home, which can limit design options.
• Potential for Disruption: Construction on an attached ADU can be more intrusive on the daily life of the main house’s occupants.

Conclusion

Whether you opt for a detached or an attached accessory dwelling unit, both types come with their unique set of advantages and challenges. It’s important to consider your goals, budget, and property limitations when deciding which ADU is right for you. At Prospect 30 Eight Construction, we have the expertise to guide you through the process.

Contact Prospect 30 Eight Construction for a free consultation and let us help you make your dream home a reality. Since 2006, Prospect 30 Eight Construction has been building top-quality custom homes, home additions, and Accessory Dwelling Units (ADUs) throughout the Denver Metro Area and the Front Range.