Let’s Build More Than Square Footage
A casita can mean a place for Mom and Dad to stay close. A first home for an adult child. A comfortable place for family to visit. A space that makes aging in place possible. Or simply the extra room you've wanted for years. Whatever your reason, let's build a space that works for your family today—and gives you options for tomorrow..
Building an ADU Doesn't Have to Feel Overwhelming
There are a lot of questions that come with building an ADU:
- Can I build one on my property?
- How big can it be?
- Where can it go?
- What will it cost?
- How will utilities connect?
- Do I need permits?
- Where do I even start?
That’s where having an experienced local construction partner makes a difference.
At Cornerstone, our job isn’t simply to build your casita. It’s to help you understand the construction process, anticipate potential challenges, make informed decisions, and move your project forward with confidence.
From Idea to Finished Casita
1. Start With Your Goals
We begin by talking about why you want an ADU, how you plan to use it, what you’d like to spend, and what you envision for the finished space.
2. Evaluate the Property
Before getting too far into design, it’s important to understand the property itself. Site conditions, access, existing structures, utilities, setbacks, and other factors can influence what’s practical.
3. Design & Pre-Construction
We’ll help you assemble the right team and work through the planning needed to move toward construction. Good decisions made early can prevent expensive surprises later.
4. Build
Once construction begins, Cornerstone coordinates the project, trades, materials, inspections, scheduling, and the many moving pieces involved in bringing your new space to life.
5. Welcome Home
The best part: turning over a finished space that’s ready for your family to enjoy.
Designed for Tucson Living
Building in Southern Arizona comes with its own considerations—from intense summer heat and sun exposure to site conditions, utilities, material selections, and outdoor living.
As a local Tucson general contractor, we understand that an ADU needs to do more than look good. It needs to perform well in our climate and make sense for the way people live here.
We can help you think through practical considerations such as energy efficiency, shade, windows and natural light, durable exterior materials, accessibility, privacy, outdoor spaces, and how the new structure relates to your existing home.