Room Additions in Tucson, AZ
Room Additions in Tucson, AZ – Expand Your Living Space Without Moving
Sometimes the perfect home just needs a little more room. At STM Development LLC, we specialize in room additions in Tucson, AZ, Marana, Oro Valley, Sahuarita, Green Valley, and nearby communities. Our team helps homeowners expand square footage with smart, seamless additions that fit their lifestyle and add lasting value.
Whether you’re growing your family, working remotely, or simply need more functional space, our licensed, bonded, and insured contractors bring 25+ years of experience to every project. From design and permitting to construction and final inspection, we handle the entire process—ensuring a stress-free expansion that blends perfectly with your existing home.
Room Addition Services We Offer
✅ Master Bedrooms
Spacious and relaxing, our master bedroom additions offer more privacy, comfort, and value for your home.
✅ Guesthouses
We build detached or attached guesthouses that are perfect for visiting family, rental income, or private retreats.
✅ Game Rooms and Man Caves
Entertainment spaces built around your lifestyle—perfect for games, movies, hobbies, or relaxing.
✅ Home Offices and Storage Rooms
Create a dedicated workspace or organize your life with added storage and functional design.
✅ Laundry Rooms and Bathrooms
Add convenience to your daily routine with custom-built laundry rooms or extra bathrooms tailored to your layout.
We also take on large addition projects, including master lofts, workshops, RV garages, and more—all built to blend beautifully with your existing home structure and style.
Why Homeowners Choose STM Development LLC
We’ve earned a strong reputation in Southern Arizona for attention to detail, construction quality, and dependable service. We are fully licensed, bonded, and insured, and a proud member of the NFIB and the Arizona Registrar of Contractors.
Our goal is to help you build equity and comfort into your home—one square foot at a time.
📞 Get Started on Your Room Addition Today
Call (520) 850-4130 to schedule your free estimate. At STM Development LLC, we make it easy to add the space you need—built right, built to last.