As you embark on your journey to your new retirement home, you may want to add a guest house – or casita. These accessory dwelling units (ADUs) offer comfort, privacy, and flexibility for family, visitors, or even rental income.
Why it matters: A casita can enhance your lifestyle, boost property value, and provide options for multigenerational living or extra income – but it comes with costs and regulations.
What Is a Casita?
A casita is a small, separate living space on your property. It can serve as guest quarters, an in-law suite, office, studio, or rental unit.
Key Considerations
Legal Restrictions
Zoning, building codes, and HOA rules vary.
Permits, safety standards, and utility connections are required.
Intended Use
Guest space, home office, art studio, or rental income?
Consider accessibility features if aging in place or hosting loved ones with mobility needs.
Multi-functional design (ex: office with Murphy bed) maximizes value.
Costs
$100–$500 per square foot plus $15,000–$25,000 for permits, foundation, and installation.
Long-term expenses: taxes, utilities, maintenance, insurance.
For rentals: run the numbers on income vs. costs to calculate payback.
Location
Over the garage, attached to the main house, or a detached structure.
Attached units may mean lower taxes and fewer restrictions.
Detached units offer privacy but may trigger higher taxes or zoning hurdles.
Bottom line: A casita can be a smart investment in retirement – adding flexibility, privacy, and potential income. Just weigh the upfront costs, long-term expenses, and local rules before breaking ground.
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Julie Gordey
A lifelong educator, Julie Gordey, is a retired school administrator. After years of focusing on education, this University of Texas graduate now travels and enjoys freelance writing for BDX and NewHomeSource.com.