ADU Builder Services for Smarter, More Flexible Living Space
An Accessory Dwelling Unit, often called an ADU, is one of the most practical ways to add flexible living space to your property. Whether the goal is housing family, creating rental income, or building a private guest house, an ADU allows homeowners to expand their property without relocating. Stronghold builds ADUs for homeowners throughout Mesa, Apache Junction, Gold Canyon, Chandler, and surrounding East Valley communities. Our team handles the entire process from planning and permitting to construction, so homeowners are not left navigating complex city requirements alone.
We serve Phoenix and the East Valley.
Why Homeowners Build ADUs
Most homeowners begin exploring ADUs when their home no longer supports the way they live. Sometimes parents move closer to family and need a private living space. Sometimes adult children return home, and everyone wants more independence. Other homeowners are thinking long term and want to generate rental income or increase property value. An ADU provides flexibility without requiring a move or a full addition to the main house. Common reasons homeowners build ADUs include: housing aging parents or extended family, creating rental income from a backyard apartment, building a guest house for visitors, converting an unused garage into living space, and increasing long term property value. For many homeowners, an ADU becomes one of the most useful spaces on the property.
ADU Builder and Contractor Services
Stronghold works with homeowners who want a clear and reliable path to building an ADU. Every project begins with a conversation about how the space will actually be used. That purpose guides layout decisions, entrances, utility planning, and privacy considerations. Even small spaces require thoughtful planning to feel comfortable and functional. Experience makes a difference.
What We Design and Build
Detached Backyard ADUs
Purpose-built structures designed for privacy and independence, offering complete separation from the main home while maximizing your property’s potential.
Garage Conversions Into Apartments
Transform existing garage space into comfortable living quarters, making use of your property’s existing footprint and foundation for cost-effective expansion.
Guest Houses
Dedicated living spaces designed for visitors or family members, providing comfort and privacy while maintaining easy access to the main residence.
Mother-in-Law Suites
Thoughtfully designed spaces that provide aging parents or extended family with independence and accessibility while keeping them close to loved ones.
Backyard Apartments
Standalone rental units that generate income while maintaining privacy for both tenants and homeowners, built to meet residential building codes.
Custom ADU Builds
Tailored solutions designed around your specific needs, property constraints, and long-term goals, ensuring your ADU works exactly how you need it to.
Garage Conversions
One of the Most Practical ADU Options
Garage conversions are one of the most common ways to create an ADU. A garage already has a structure, foundation, and roof, which makes it a practical starting point for adding livable space. Homeowners often choose garage conversions because they use existing square footage, often cost less than building a detached structure, can be completed faster than a new build, and work well as guest suites or rental units. The challenge is that garages were not designed for living. Insulation, plumbing, ventilation, and electrical systems usually need upgrades. Stronghold handles these improvements, so the final space meets residential building codes and feels like a natural extension of the home.
Understanding ADU Permits and Local Regulations
Permitting is often the part of the process that surprises homeowners. Every city and county has different requirements for ADU construction. Regulations may affect maximum size of the structure, property setbacks, utility connections, parking requirements, zoning restrictions, and permit fees. Homeowners are often ready to start construction immediately, but permits can take time depending on the municipality and review schedule. Stronghold manages the permit process from start to finish. Our team prepares documentation, submits applications, and coordinates with city reviewers and inspectors. Handling the process internally helps reduce delays and keeps projects moving forward.
ADUs for Rental Income and Multi-Family Properties
Many homeowners explore ADUs because they want to make better use of their property financially. A well-designed backyard apartment can create a separate living unit while using the same property infrastructure. ADUs are commonly used as long term rental units, guest houses, housing for extended family, and future living space for aging in place. Some homeowners and property owners also consider ADUs as part of a broader rental or multi-family strategy. In those situations, the design must account for separate entrances, privacy between units, utility planning, parking requirements, and local rental regulations. Stronghold works with homeowners and investors to design ADUs that remain flexible and practical for many years.
The Stronghold ADU Process
Step 1
Initial Consultation
We begin by discussing your goals, property layout, and how the space will be used.
Step 2
Site Evaluation
Our team reviews zoning requirements, property conditions, and building opportunities.
Step 3
Design and Planning
We develop a layout that balances comfort, functionality, and long term use.
Step 4
Permitting
Stronghold prepares and submits the documentation required by local jurisdictions.
Step 5
Construction
Our team manages the full build process while keeping homeowners informed throughout the project.
What Our Customers Say
Frequently Asked Questions
What is an ADU?
An ADU, or Accessory Dwelling Unit, is a secondary housing unit built on the same property as a primary residence. It may be attached to the home, detached in the backyard, or created through a garage conversion.
How much does it cost to build an ADU?
Costs depend on size, design features, site conditions, and utility connections. Garage conversions are often less expensive than building a detached structure.
How long does the permitting process take?
Permit timelines vary depending on the city or county reviewing the project. Some approvals move quickly while others require additional review cycles. Stronghold manages the permit process to help reduce delays and keep the project moving forward.
Can ADUs be rented out?
Many homeowners use ADUs as rental units. Local regulations may affect how the space can be rented, so it is important to review city rules during the planning stage.
Can a garage be converted into an ADU?
Yes. Garage conversions are one of the most common ways to create an ADU. The space must be upgraded with insulation, plumbing, electrical systems, and ventilation to meet residential building codes.
Does Stronghold handle permits for ADU construction?
Yes. Stronghold manages the permitting process as part of the project, including documentation, applications, and coordination with municipalities.
Have Questions for Us?
Reach out to us today to receive the answers you need. Our friendly and reliable team looks forward to helping you remodel or renovate your home.