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Garage Conversion ADUs in Dallas, TX

Transform an underused garage into a fully livable accessory dwelling for aging parents or extended family.

A Cost-Effective Path to Multi-Generational Living

Garage conversions are one of the most practical ways for Dallas homeowners to create a private, safe home for parents or family members without expanding the footprint of the property. Estate ADU converts existing garages into fully functioning ADUs with upgraded foundations, insulation, utilities, and floor plans designed for comfort and accessibility.

We work across Lakewood, East Dallas, the M Streets, Highland Park, University Park, Preston Hollow, and other established neighborhoods where space is limited and family needs are changing. Our team manages feasibility, permitting, design, and construction with a streamlined, white-collar approach that removes guesswork and delivers a finished space that feels intentional, not improvised.

Designed to Match Your Home and Meet Dallas Requirements

Garage conversion ADUs must meet specific zoning, utility, and structural standards in Dallas, and many neighborhoods have additional architectural requirements. Estate ADU handles every detail, from structural reinforcement and slab leveling to ensuring the new living space aligns with the main home’s exterior.

Because garage conversions typically involve fewer permitting hurdles and no major foundation work, they often move faster and cost less than ground-up ADUs. They remain one of the most popular choices for families who want aging parents nearby while maintaining privacy and an efficient budget.

Frequently Asked Questions About Garage Conversion ADUs

Curious about what to expect? Here are answers to some of the most common questions homeowners ask about converting a garage into an ADU in Dallas.

How long does a garage conversion ADU take?expand_more
Most conversions take between four and seven months, depending on permitting timelines, HOA requirements, and the condition of the existing structure.
Do garage conversions need new plumbing and electrical?expand_more
Usually, yes. We evaluate your existing utilities and design a plan that brings everything up to Dallas residential code, ensuring safety and comfort.
Will my garage ADU need a new foundation?expand_more
Some garages require slab reinforcement or leveling to meet ADU standards. We assess the condition early so you understand any structural needs before moving forward.
Can I still match the exterior style of my home?expand_more
Absolutely. Most Dallas neighborhoods require architectural continuity. We coordinate materials, rooflines, and design details so the conversion blends naturally.
Is a garage conversion cheaper than a ground-up ADU?expand_more
Yes. Conversions generally offer a lower overall investment because they leverage an existing structure, though total cost depends on utilities, insulation, and upgrades.

Our Design-Build Process

01 | PLAN AND EVALUATE
We begin with a focused conversation and a site assessment so we can understand your goals, your property, and your timeline. Our team reviews feasibility, zoning considerations, and architectural direction early so you know exactly what is possible on your lot. This stage gives you clarity before investing further and establishes a clear path toward a permitted, buildable ADU.
02 | DESIGN AND APPROVE
Once the direction is set, we coordinate architectural drawings, elevations, and the documents required for city and HOA review. Estate ADU manages communication with reviewers and guides you through each checkpoint so nothing feels uncertain. By the end of this phase, you have approved plans, accurate pricing, and a clear understanding of the next steps.
03 | BUILD AND COMPLETE
With permits secured, construction begins. Our team oversees scheduling, trades, quality, and communication from start to finish. Homeowners receive consistent updates and a predictable experience as the ADU takes shape. The result is a well built, thoughtfully planned accessory dwelling that supports your family’s needs for years to come.

A Look at our Work

Exterior view of custom-built ADU in Dallas, TX by Estate ADU, featuring light siding, wood door, and outdoor bar seating.
Full interior view of ADU office in Dallas, TX by Estate ADU with sliding doors and large area rug.
Cozy custom bedroom in Dallas ADU by Estate ADU with neutral decor and modern furnishings.
Modern walk-in shower with subway tile and glass enclosure in Dallas ADU bathroom by Estate ADU.
Spacious unfurnished ADU kitchen in Dallas, TX custom built by Estate ADU with bright lighting and wood floors.
Fully furnished ADU kitchen and living space by Estate ADU in Dallas, TX with navy cabinetry and sectional sofa.
Custom home office in Dallas ADU by Estate ADU with desk workspace and large sliding doors.

Many homeowners choose to include these features when investing in a garage conversion ADU:

select_check_boxFull bathroom with walk-in shower
select_check_boxCompact kitchenette or full kitchen
select_check_boxUpgraded insulation and HVAC
select_check_boxNew exterior entry or private patio
select_check_boxVaulted ceilings (when structurally feasible)
select_check_boxPremium flooring and interior finishes
Estate ADU Cost Guide Graphic

ADU COST GUIDE

Whether you're exploring a garage conversion, addition, or a backyard home, this guide outlines what it truly costs to build an ADU in Dallas. Estate ADU specializes exclusively in Accessory Dwelling Units, and this resource walks you through the investment ranges and the factors that influence pricing when creating a secondary dwelling on your property.

  • Dallas-specific ADU cost ranges
  • Key factors that impact total project investment
  • Investment tiers with itemized breakdowns

Where We Work

Estate ADU serves homeowners throughout Dallas who want to create well-designed, code-compliant accessory dwelling units that fit their property and their neighborhood. Our team focuses on the established, high-value communities where ADUs provide meaningful solutions for multigenerational living, aging parents, and long-term family planning. With a strong understanding of local zoning, HOAs, and architectural expectations, we help Dallas families build with confidence.

If you do not see your neighborhood listed, reach out, and our team will let you know how we can help.

Our Service Area

  • Dallas
  • Lakewood
  • East Dallas
  • M Streets
  • Fort Worth
  • Colleyville
  • Flower Mound
  • Lewisville
  • Lake Highlands
  • Highland Park
  • University Park
  • Preston Hollow
  • Arlington
  • Grapevine
  • Keller
  • Mckinney
  • Bluffview
  • Plano
  • Southlake
  • Denton
  • Grand Prairie
  • Frisco
  • Carrolton
  • Rockwall

Trusted by Families Across Dallas

Great experience converting a detached garage into a Mother-In-Law Suite. Full kitchen, bathroom, shower and laundry n demand hot water. Punctual and well managed. Jeff and his crews take pride in their work. There was one minor issue with city permitting but it was quickly resolved and was at no fault of EADU. Highly recommend!

Tyler Hawkins

Working with Estate ADU was a fantastic experience! Their team was professional, transparent, and incredibly skilled. They transformed my vision into a beautiful, high-quality ADU on time and within budget. Their transparency throughout the process was refreshing, and I appreciated their honest advice on what would work best for my property. I highly recommend Estate ADU for anyone looking to build an Accessory Dwelling Unit—truly top-notch service!

Neil Amos

We met with multiple companies to get quotes for our backyard tiny house. Jeff and his team were by far the most professional and gave us a competitive quote. We are looking forward to getting started!

Justin Wenokur

Jeff and Ryan exceeded all expectations. Professional and efficient service. High quality product. My family are loving our new ADU in Grapevine!

Drew Williamson

Totally would recommend. Had a great experience with both Jeff and Ryan as they always kept me informed every step of the process and answered my calls when I had questions. 10/10 would recommend

Meredith Knight

Ask for Jeff or Ryan, and they’ll make sure you’re taken care of. These guys are pros and very detail oriented - very pleased with the services I received and would trust them with my next project as well!

David Latham

Great experience with their team building our parents a detached unit. Would recommend to anyone!

Burke Michaels

Estate ADU converted my garage into an apartment in a timely and cost effective manner.

Austin Dabbs

Let’s Discuss Your ADU

Clear guidance from the first call through final construction.

Reach out to schedule your introduction call and tell us about your property, your goals, and your timeline. Our team will walk you through what is possible on your lot and outline the next steps with clarity and confidence.