HOME ADDITIONS & ADUS IN FLAGSTAFF
START YOUR ADDITION
Planning an addition or ADU starts with understanding how the new space needs to support your family, property, and long-term plans. Tell us what you’re considering, and we’ll help you define the right scope, budget, and next step with clarity.
ADDITIONS & ADUS
Whether you need a private suite for aging parents, a dedicated home office, a detached rental unit, or room for a growing family, High Caliber brings design, pre-construction, permitting, and construction together under one accountable team. We plan the new space around your goals and your existing home so the addition feels intentional, functional, and built to belong.
Additions succeed when the new and existing structures are considered together from the start. Our pre-construction process coordinates design, engineering, HOA requirements, permits, selections, budget, and schedule early—helping the finished space integrate with your home instead of feeling added on.
AN EXCEPTIONAL EXPERIENCE
It’s rare to find a contractor that exceeds expectations, but High Caliber Construction absolutely delivered a 5-star experience. The team was punctual, courteous, and communicative throughout the entire process. They kept me informed every step of the way, and were very responsive to any questions I had. I wholeheartedly recommend High Caliber Construction to anyone looking for a reliable and skilled contractor. They truly earned their 5-star rating, and I will definitely be calling them for future projects.
frequently asked questions
Adding space to an existing property raises important questions about cost, design, permitting, utilities, and how the new structure will connect to your home. These answers explain how High Caliber approaches additions and ADUs in Northern Arizona.
How much does a home addition or ADU cost?
Cost depends on size, site conditions, foundation and structural requirements, utilities, finishes, and whether the space is attached or detached. A basic bedroom addition typically starts around $85,000, while larger or more complex additions and ADUs require a project-specific budget. During pre-construction, we define the scope and develop a realistic fixed construction price.
Can you help with design, engineering, and permits?
Yes. High Caliber is a design-build contractor, so we can coordinate as-built drawings, designers or architects, structural and wastewater engineering, HOA approvals, interior selections, City or County permits, budgeting, and construction through one accountable team.
Can an addition match our existing home?
Yes. Seamless integration is a central part of planning an addition. We consider rooflines, exterior materials, window placement, proportions, circulation, and interior finishes so the new space supports the original architecture rather than feeling like an afterthought.
What can an ADU or addition be used for?
Common uses include a primary suite, space for aging parents, a private guest suite, a home office, a long-term rental, a sunroom, or additional garage space. We help evaluate the property and local requirements so the design fits both your goals and the site.