Home Additions and Expansions in Mesa
Full-Service Design & BuildNeed more square footage without moving? 123 Remodeling plans and builds home additions in Mesa — room expansions, second-story additions, garage conversions, and new kitchens or bathrooms — with design, permits, and construction handled by one design-build team.
Trusted by homeowners & associations
Add Space That Feels Like Part of Your Home
Home additions are about solving real space problems: a growing family, a home office, an in-law suite, a larger kitchen, or simply not enough room on your lot to justify moving. The goal is not just more square footage — it is space that matches your home's style, meets building requirements, and works day to day.
At 123 Remodeling, we handle home additions and expansions in Mesa from initial design through final construction. Our architects, designers, and builders work together so the new area ties into your existing floor plan, roof lines, and interior finishes — not like a tacked-on afterthought.
Our Design-Build Process
A Seamless Experience from Start to Finish-
1 . Design Consultation
We start with an in-depth consultation to understand your goals, style, and budget. Our expert designers create custom concepts that reflect your vision.
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2 . 3D Rendering & Material Selection
Visualize your remodel with realistic 3D renderings and select luxury materials, fixtures, and finishes tailored to your aesthetic.
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3 . Permits & Documentation
We handle all permits, blueprints, and city approvals, ensuring compliance with Arizona building codes and HOA regulations.
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4 . Ordering & Delivery
Your dedicated project manager oversees material procurement, inspections, and on-time delivery so your project stays on schedule.
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5 . Expert Construction & Installation
Our licensed and insured contractors bring your vision to life with precision craftsmanship, quality materials, and timely project execution.
Our Home Additions and Expansions Services in Mesa
From First Sketch to Certificate of Occupancy
Additions involve more than interior remodeling. We start with a consultation to define how you want to use the new space, then develop architectural plans and 3D visuals. Our team navigates Arizona permitting, structural requirements, HOA submissions when needed, and coordination with engineers.
During construction, your project manager oversees foundation or structural work, framing, mechanical systems, and interior finishes — keeping the addition on schedule and integrated with the rest of your home. You work with one design-build firm instead of juggling separate designers and contractors.
Our Latest Projects
What Our Clients Say
“Bathroom addition was done on time and on budget. The team was professional and friendly. The project manager was always available to answer questions and provide updates. I would highly recommend 123 Remodeling to anyone.”
“123 Remodeling completed a large scale addition (over 2000sqft) to my home. They built a new kitchen, 2 bathrooms, living room, bedroom and a new garage. The design is modern and looks great. Working with Rhonda and the team was a pleasure!”
Start Your Home Additions and Expansions in Mesa
Contact us today for a free quote and consultationFrequently Asked Questions
We offer full-service home additions in Phoenix and the Valley. Our services range from expanding your living space to adding a new kitchen, bathroom, bedroom, or even a second story. We handle everything from architectural design and permitting to construction and finishing touches. Whether you need a garage conversion, a room addition, or a major home expansion, we ensure a seamless process and a high-quality result that blends perfectly with your existing home.
Sure! We are fully licensed to work on residential and small commercial projects. Our license number is ROC 336595 and you can verify it at Arizona Registrar of Contractors website. We're insured for projects up to $2,000,000.
The cost of a home addition depends on the size, complexity, and materials selected for your project. You can find a general remodeling costs in our article "2025 Guide to Remodeling Costs in Phoenix, Scottsdale and the East Valley".
We provide a free, detailed quote with transparent pricing and an all-inclusive service package to ensure there are no surprises. To receive a personalized estimate tailored to your project, call us at (480) 716-9335 or email us at sales@123remodeling.com to schedule a free consultation.
A home addition can take anywhere from three to six months or more, depending on the complexity of the project. The timeline is influenced by architectural design, permitting, material availability, and the scope of construction. We provide a detailed project schedule upfront and keep you informed throughout the process to ensure a smooth and timely completion.
For kitchen and bathroom remodels many homeowners choose to stay in their homes while work is being completed. For full-home renovations or projects involving major structural changes, temporary relocation may be recommended to ensure comfort, safety, and minimal disruption.
Our team works efficiently to minimize inconvenience, and your dedicated project manager will coordinate a schedule that fits your lifestyle. If you decide to stay during the remodel, we will take steps to reduce dust, noise, and worksite impact.
We proudly serve homeowners throughout the Greater Phoenix area, including: Phoenix, Scottsdale, Tempe, Mesa, Chandler, Paradise Valley, Cave Creek, Fountain Hills, Carefree, and surrounding East Valley suburbs. As a Scottsdale-based luxury remodeler, we understand the unique design styles, climate considerations, and local requirements.
Not necessary. Our in-house design team handles everything from custom layouts and 3D renderings to material selection and project planning. If architectural plans are required for major structural changes (like alteration of load-bearing walls), we coordinate all necessary documentation and approvals, ensuring a streamlined process.
Our team works closely with you to design a space that is functional, beautiful, and built around your needs without unnecessary delays or added complexity.
Starting your remodel is simple. Schedule a free consultation, and we’ll discuss your goals, budget, and design preferences. During in-home consultations, our designer will provide expert guidance, design ideas, and a detailed estimate to bring your vision to life. Call (480) 716-9335 or book a consultation online to begin your home transformation today.