Colorado faces a housing deficit, according to Common Sense Institute, of 10614 to 21150 units.
As housing demand continues to rise in Colorado Springs, more homeowners are exploring the benefits of adding an Accessory Dwelling Unit (ADU) to their property. Whether you’re planning to create space for aging parents, a private rental unit for supplemental income, or a home office or guest suite, ADUs offer a flexible and cost-effective solution.
However, one of the first and most important decisions you’ll face is whether to build a detached or attached ADU.
Both options come with distinct advantages and challenges, and the best choice depends on your property, goals, and budget. As an experienced ADU builder in Colorado Springs, we’re here to walk you through your options and help you make an informed decision.
What Is an ADU?
An Accessory Dwelling Unit (ADU) is a secondary residential structure located on the same lot as a primary residence. Also known as in-law suites, granny flats, or backyard cottages, ADUs can be:
- Detached: Separate, standalone structures
- Attached: Built as an addition to the main home
- Interior conversions: Garage, basement, or attic remodels
For this article, we’ll focus on the key differences between detached and attached ADUs, and the pros and cons of attached ADUs.
Option 1: Detached ADUs
Detached ADUs are independent structures located elsewhere on your lot, often in the backyard. These units have their own foundation, roof, and entryway and are not physically connected to your primary residence.
Here are some detached ADU benefits.
1. Maximum Privacy
Detached units offer greater privacy for both you and the occupant. Ideal if you’re:
- Renting the unit to tenants
- Using it as a guest house
- Accommodating a family member who wants some independence
2. Design Flexibility
Since detached ADUs don’t have to match the main structure’s footprint, there’s more freedom in design, layout, and placement. You can create a truly customized living space.
3. Higher Rental Appeal
Detached units tend to be more appealing to renters because they feel like a standalone home. Interestingly, this can allow for higher rental income compared to attached units.
4. Multigenerational Living
Detached ADUs are popular for aging-in-place solutions, allowing elderly parents to live nearby while maintaining autonomy. A boon for everyone involved.
Some cons of detached ADUs:
1. Higher Cost
Building a separate structure typically involves more extensive:
- Site preparation
- Utility hookups
- Materials
These obstacles make detached ADUs more expensive upfront.
2. Zoning and Setback Limitations
Colorado Springs has specific zoning and lot size requirements for detached ADUs. Not all properties qualify, so you’ll need to verify your eligibility with the city.
3. Longer Construction Time
Because you’re essentially building Colorado Springs home additions, detached ADUs may take longer to design, permit, and construct. If you don’t have this time, then you might have to consider other options.
Option 2: Attached ADUs
Attached ADUs are built onto the side, rear, or upper level of your existing home. They share at least one wall with the primary residence but include a private entrance and often their own kitchen and bathroom.
Here are the pros of attached ADUs.
1. Lower Construction Costs
Attached ADUs are generally more affordable to build since they share infrastructure like electrical, plumbing, and HVAC systems with the main home. Fewer materials and less site prep reduce expenses.
2. Easier Permitting
In some zones of Colorado Springs, attached ADUs may face fewer restrictions or requirements compared to detached structures. Less paperwork for you is the grand result.
3. Faster Completion
Because you’re building onto an existing structure, the project timeline is often shorter than for detached ADUs. It’s an advantage you can’t ignore if you need something built fast.
4. Ideal for Caregivers or Family Members
Attached ADUs offer convenience and accessibility for family members who need assistance but still desire some independence, including elderly parents or adult children.
Here are some cons of attached ADUs.
1. Less Privacy
With shared walls and closer proximity, it can feel less like a separate living space. Soundproofing and layout design become critical for comfort.
2. Design Limitations
The existing structure may restrict how you can design the new space. Matching rooflines, exterior finishes, and building code compliance can be complex.
3. Impact on Main House
Construction could temporarily disrupt your daily life, and space taken from your main home (like converting a garage or adding a side extension) could affect your own living area or storage.
Key Considerations for Homeowners in Colorado Springs – ADU Builder Advice
Before you commit to either a detached or attached ADU, consider these factors. It’s advice directly from an ADU builder about ADU options in Colorado Springs.
Zoning and Lot Size
Not every property is zoned for ADU development. The city has designated specific zones where ADUs are permitted. Additionally, your lot must meet minimum size requirements and setback distances, particularly for detached ADUs.
Tip: Check with the City of Colorado Springs Planning Department or consult an ADU builder familiar with local ordinances to assess your property’s eligibility.
Utility Connections
ADUs must have utility services, like:
- Water
- Sewer
- Electricity
These can be shared with the main house or installed separately.
Connecting to existing lines is typically easier with attached ADUs, but a detached unit may require trenching and separate meters.
Long-Term Use
Are you building the ADU for short-term rental income? Long-term tenants? Aging parents?
Your goals should influence your design and construction decisions. Detached ADUs offer more flexibility for income properties, while attached units may suit multigenerational families.
Property Value and ROI
Both types of ADUs can significantly increase your property’s value, especially in a high-demand housing market like Colorado Springs. Detached ADUs often offer a higher return on investment due to their standalone appeal.
Hire the Best ADU Builder in Colorado Springs
Whether you choose a detached or attached ADU, the key to success is working with an experienced ADU builder in Colorado Springs who understands local zoning laws, permitting processes, and construction best practices.
StreamHome Construction has a licensed architectural team with 75 years of design experience, who have designed over 500 projects. We are ready to build your project based on your vision and budget.
Schedule a free consultation with our team today to get started on your dream ADU build.
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