Home Additions and Expansions
123 Remodeling is a premier luxury design-build firm creating bespoke home additions and expansions in the Phoenix-Scottsdale area. Every project is unique and personalized — managing architectural planning, 3D design with unlimited free revisions, material sourcing, structural construction, and rigorous quality control under one unified team.
Trusted by homeowners & associations
Bespoke Home Additions Tailored to Your Architecture
A luxury home addition should feel like an integral, organic extension of your residence rather than an afterthought. Whether you desire an expansive primary suite, an open-concept great room, a luxury guest casita, or a second-story expansion, we believe every project is unique and personalized to your lifestyle.
At 123 Remodeling, our luxury design-build approach unites architects, interior designers, and master builders under one roof in the Phoenix-Scottsdale area. We ensure structural framing, rooflines, desert climate performance, and interior finishes harmonize effortlessly with your existing home.
Our Design-Build Process
A Seamless Experience from Start to Finish1 . Planning & Design Consultation
We begin with an in-depth consultation to understand your unique lifestyle, aesthetic preferences, and investment goals. Our design-build team crafts personalized concepts tailored specifically to your home.
2 . 3D Renderings & Unlimited Design Revisions
Visualize your new space with photorealistic 3D renderings. We offer unlimited free design revisions until you are completely happy with the design before construction begins.
3 . Permits & Architectural Documentation
We handle all architectural drawings, structural engineering, permits, and city approvals, ensuring full compliance with Arizona building codes and HOA guidelines.
4 . Luxury Material Sourcing & Procurement
Your dedicated project manager manages material sourcing, vendor coordination, and strict quality inspections to ensure every finish and fixture arrives on schedule and meets our high standards.
5 . Master Construction & Quality Control
Our skilled craftsmen execute your remodel with uncompromising attention to detail, rigorous quality control at every phase, and dedicated project management through final inspection.
Our addition remodeling services
Our Full-Service Design-Build Process
We begin with a detailed feasibility and design consultation to explore your space requirements, site conditions, and budget. Our team develops comprehensive architectural drawings, engineering assessments, and 3D visual models.
We offer unlimited free design revisions until you are 100% happy with the layout and aesthetic before construction begins. We manage all city permitting, HOA approvals, material procurement, structural construction, and quality inspections through your dedicated project manager.
Our Latest Remodeling 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!”
Kitchen & Bathroom Additions
Many home additions center on high-impact spaces like expanded kitchens or new luxury bath suites.
Kitchen additions enlarge your cooking and entertaining footprint with oversized custom islands, walk-in pantries, and seamless indoor-outdoor sliding glass transitions. Bathroom additions introduce tranquil spa retreats, guest baths, or pool-accessible ensuites.
Because we specialize in high-end design-build remodeling every day, we plan plumbing, HVAC, electrical, and custom millwork into the addition from day one for seamless structural integration.
Second-Story & Structural Additions
When you cannot expand outward, building up is often the answer — especially in established Scottsdale, Phoenix, and Paradise Valley neighborhoods with mature lot layouts.
Second-story additions can add bedrooms, bathrooms, offices, or flexible lofts while preserving yard space. These projects require structural engineering, careful tie-in to existing framing, and compliance with local codes — work our team plans and manages as part of the design-build process.
We also handle garage conversions, room bump-outs, and new garage or living space where permitted. Every project starts with a feasibility review so you understand options, constraints, and realistic timelines before committing.
Why Choose 123 Remodeling for Your Addition
Complex residential additions require seasoned architectural coordination, reliable project management, and flawless construction. Here is why homeowners choose 123 Remodeling:
- Full-service design-build under one roof — planning, 3D design, material sourcing, construction, and quality control
- Unlimited free design revisions — refine your architectural plans and 3D renderings until you are completely happy
- Arizona permitting & code mastery — seamless navigation of municipal zoning and HOA architectural boards
- Licensed & insured — ROC 336595 for residential contracting
- Serving Greater Phoenix since 2008 — room additions, second-story builds, and major expansions
Share your vision with us — schedule a free consultation to discuss feasibility, architectural scope, and next steps.
Start Your Home Additions and Expansions
Contact us today for a free quote and consultationFrequently Asked Questions
We offer full-service luxury home additions and expansions in Phoenix and the Valley. As a design-build firm, we manage the entire project — architectural planning, permitting, 3D design, material sourcing, structural construction, and meticulous quality control. Whether you need a room expansion, primary suite addition, new luxury kitchen, garage conversion, or second-story expansion, we ensure flawless integration with your existing home.
Our integrated design team collaborates closely with you to understand your lifestyle and aesthetic preferences. We develop detailed space plans and photorealistic 3D renderings, and we offer unlimited free design revisions until you are completely happy with the design before construction begins. You will know exactly how your space will look and function without worrying about revision fees.
Yes. We provide a comprehensive one-year labor warranty on all our remodeling and construction work, in addition to manufacturer warranties on materials, cabinetry, fixtures, and appliances. Our commitment to master craftsmanship and rigorous quality control ensures lasting peace of mind.
Yes! We are fully licensed for residential and commercial remodeling in Arizona. Our license number is ROC 336595, which you can verify directly at the Arizona Registrar of Contractors website. We are fully insured for projects up to $2,000,000.
The cost of a home addition depends on architectural complexity, square footage, foundation/structural requirements, and chosen finishes. You can find general remodeling costs in our guide "2025 Guide to Remodeling Costs in Phoenix, Scottsdale and the East Valley".
We provide a free, detailed proposal with transparent pricing and full-service coordination from initial planning to construction and quality control. Call us at (480) 716-9335 or email us at sales@123remodeling.com to schedule a free consultation.
A luxury home addition typically takes three to six months or more, depending on architectural design, city permitting, engineering requirements, and the scope of construction. We provide a detailed project schedule upfront and keep you informed throughout the process to ensure a smooth, timely completion.
For kitchen and bathroom remodels, many homeowners choose to stay in their homes while work is completed. For whole-home renovations or major structural work, temporary relocation may be recommended for comfort, safety, and efficiency.
Our team works cleanly and conscientiously to minimize disruption. Your dedicated project manager coordinates the schedule, and we take active measures to isolate work zones and reduce dust and noise.
We proudly serve homeowners throughout Greater Phoenix and the East Valley, including Scottsdale, Phoenix, Paradise Valley, Cave Creek, Fountain Hills, Chandler, Mesa, Tempe, Carefree, and Gilbert. As a Scottsdale-based luxury design-build firm, we understand desert architecture, climate performance, and local building codes.
Not at all. As a full-service design-build firm, our in-house team handles the entire process — from custom 3D design and spatial planning to engineering, city permits, material sourcing, construction, and quality control. We provide unlimited free design revisions so you can refine your vision until it is perfect.
Getting started is simple. Schedule a free design consultation, and we will meet with you to discuss your vision, budget, and lifestyle needs. During the consultation, our design-build experts provide tailored guidance, space ideas, and a detailed roadmap for your unique remodel. Call (480) 716-9335 or book a consultation online to begin your luxury home transformation.