Custom ADU Construction in Northern Arizona

What Is an ADU?

An accessory dwelling unit (ADU) is a smaller, self-contained home built on the same lot as a primary residence — with its own kitchen, bathroom, and entrance. Depending on your property and goals, an ADU can be a detached casita or guest house, or a smaller attached unit with its own living space. Whatever form it takes, Carlson Construction manages the entire process: design coordination, permitting, and construction from groundbreaking to your final walkthrough.

Why Northern Arizona Homeowners Build an ADU

An ADU adds flexible, permitted living space without moving. Homeowners across Prescott and the surrounding towns use ADUs for multigenerational living, a private space for aging parents or adult children, long- or short-term rental income, a guest house, or a dedicated home office or studio. Because an ADU is a full dwelling rather than a bolt-on, it also tends to add lasting value to your property.

What Types of ADUs Do You Build?

• Detached casitas and guest houses on their own footprint
• Attached accessory dwelling units with a private entrance
• In-law and guest suites with a full kitchen and bath
• Studio, one-bedroom, and two-bedroom ADU floor plans
• ADUs designed to match your existing home's style and roofline

ADU Permitting and Zoning in Northern Arizona

ADU rules — allowable size, setbacks, parking, and whether a detached unit is permitted — vary by jurisdiction across our service area, from the City of Prescott and the towns of Prescott Valley and Chino Valley to unincorporated Yavapai County. Carlson Construction handles the full permitting and inspection process for your ADU, so you don't have to navigate city or county requirements on your own.

Building an ADU on Your Property

Every ADU starts with a site evaluation that accounts for grade, setbacks, access, and how the unit ties into existing utilities. On in-town lots, that often means extending water, sewer, and power from the primary residence; on rural Yavapai County parcels, it can involve well, septic, and utility capacity for a second dwelling. We plan these details up front so your ADU is sited and serviced correctly from day one.

Matching Your ADU to Your Existing Home

A well-built ADU should read as part of your property, not an afterthought. Our team designs each unit to complement your primary home's structure, roofline, and finishes, while still functioning as a fully independent, code-compliant dwelling — so the finished casita or guest house looks like it was always meant to be there.

ADUs in Prescott, AZ and Across Northern Arizona

We build ADUs, casitas, and guest houses throughout Prescott, Prescott Valley, Chino Valley, Dewey-Humboldt, Wickenburg, and Williams. Every project is permitted through the correct local jurisdiction and built to the same standard as our custom home construction work — owner-led, licensed, bonded, and insured.

What's Included in Our ADU Service

• Site evaluation, setback review, and utility coordination
• Design coordination and floor-plan selection
• Permitting through your city, town, or county jurisdiction
• Scheduling and oversight of every trade, from foundation to finish
• At-cost billing on every material and trade invoice, with no markup
• A single point of contact from consultation to keys in hand

Flat-Fee Pricing on Every ADU

Your ADU is billed under the same Flat-Fee Transparency Guarantee as a full custom home: one flat planning and permitting fee, one flat monthly construction management fee, and every trade and material cost billed at cost — no markup, no margin, no cost-plus math.

How an ADU Project Works

An ADU follows the same five-step process as every Carlson Construction project: a free consultation and quote, planning and permitting, groundbreaking, construction, and a final walkthrough. Ready to add a casita, guest house, or in-law suite to your Northern Arizona property? Contact Carlson Construction for a free, flat-fee quote.