Multigenerational Living in DFW: How Garage Apartments Are Keeping Families Close

The Problem a Garage Apartment Solves

The American multigenerational household has been making a comeback for over a decade — and in DFW, the trend has accelerated. The reasons are familiar to anyone in this situation:

An aging parent can no longer safely live alone, but isn't ready for assisted living. An adult child is between apartments and needs a place to land. A family member has a health situation that makes proximity important. Or it's simply about wanting family nearby without the friction of sharing a front door.

The garage apartment — when done right — solves all of it. Separate entrance. Full kitchen and bath. Independent HVAC. Their space. Your property.

What Families Are Building in DFW

Across our 45+ projects in the Dallas–Fort Worth area, roughly a third are built primarily for family use rather than rental income. The most common types:

Garage conversions for parents: The most common scenario. A detached two-car garage converted into a 450–700 sq ft studio or one-bedroom for an aging parent. Same lot, ten steps away, completely independent.

Above-garage suites for adult children: Built above a new or existing garage, these give adult children returning from college or relocating for work an independent space that's flexible in practice. Many end up long-term.

Detached guest houses for multigenerational families: Larger builds — 700–1,100 sq ft — designed for long-term use by a family member who needs full amenities. These are especially common in Keller, Southlake, Colleyville, and other premium Tarrant County suburbs with large lots.

Designing for Family vs. Rental

There are real differences in how we design a unit for a family member versus a market-rate tenant:

For a family member:

• —Accessibility features are often a priority — zero-step entry, wider doorways, curbless shower, grab bars
• —Connection to the main home may be desired: shared garden gate, covered walkway, or intercom
• —Privacy from street view matters more than rental curb appeal
• —Interior finish level often higher, matching the primary home

For a rental tenant:

• —Maximizing usable square footage and storage
• —Durable, easy-to-clean finishes
• —Independent utility metering
• —Separate, visible entrance from street

A good builder asks the right questions upfront. Projects designed for family use that later convert to rentals also need to meet rental-ready standards — worth planning for if you want that flexibility.

The Financial Side

Unlike a purely rental-focused project, the ROI on a family-use garage apartment isn't measured in monthly rent. It's measured in:

• —Avoided assisted living costs. Memory care facilities in DFW run $5,000–$10,000/month. A $120,000 guest house pays for itself in 12–24 months compared to that alternative.
• —Property value increase. Even non-rental ADUs add assessed value — typically $60,000–$150,000 depending on size and quality.
• —Flexibility. A well-built unit can generate rental income later if the family dynamic changes.

Which Cities Are Best for Multigenerational Builds?

For multigenerational ADU projects specifically, we see the most activity in:

Southlake and Colleyville: Premium builds with full guest house amenities. The "aging in place" market is strong among homeowners who want quality and don't want to compromise. See our Southlake guide and Colleyville guide.

Fort Worth (established neighborhoods): Fairmount, Berkeley Place, Arlington Heights — homeowners with original garages and parents who want to stay close to the neighborhood. See our Fort Worth guide.

Keller and North Richland Hills: Growing families in larger homes adding space for parents or returning adult children. Keller guide here.

Mansfield and Burleson: Family-oriented communities where multigenerational living is culturally common and large lots make detached builds feasible.

The Conversation Most Families Have Too Late

The most common thing we hear from families building a multigenerational ADU: "I wish we'd done this two years ago."

The permit process takes time. The construction takes time. If you're anticipating a family member needing a space within the next year, start the design process now. Schedule a free consultation — we'll tell you exactly what's realistic for your property and your timeline.