Looking for cost of accessory dwelling unit in Gilbert, AZ? Call AccessoryDwellingUnit Solutions for a contact a provider — no obligation. Licensed adu builders serve Gilbert and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

The total price for an ADU depends on several moving parts, including the square footage, your foundation type, and local labor rates. Choosing high-end finishes or complex site prep will naturally increase the budget, while standard layouts help keep things manageable. Exact pricing confirmed free on the call.

Frequently asked in Gilbert

What are the disadvantages of ADUs in Gilbert?

Disadvantages can include upfront costs and potential impacts on lot coverage or setbacks, depending on Gilbert's specific zoning. It's important to consider neighbor relations and the time involved in the planning and construction phases. A professional can help you weigh these factors based on your property.

How much does an ADU cost in Arizona?

The cost of an ADU in Arizona varies greatly based on size, materials, and complexity. Factors like site preparation, foundation, and finishes all play a role. Getting a custom quote from a local pro is the best way to understand the investment for your Gilbert property.

What are the rules for ADUs in Arizona?

Is an ADU allowed in Gilbert, Arizona?

Yes, Gilbert generally allows ADUs, but specific regulations apply to setbacks, lot size, and maximum square footage. It's essential to consult with local experts who are familiar with Gilbert's ADU ordinances. They can confirm eligibility for your specific address.

Can I get a grant for an ADU in Arizona?

While California has specific grant programs, Arizona's availability of ADU grants can vary and may be limited. It's best to ask the specialist you speak with about any potential local or state incentives they are aware of for Gilbert homeowners.

What is the process for building an ADU in Gilbert?

Also serving nearby: Chandler · Mesa · Tempe · Phoenix · Scottsdale

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More on this: HUD ADU resources — ADU policy and financing research.

Service area details

275,411residents

4,011per sq mile

7ZIP codes served

Serving all of Gilbert — population 275,411; about 4,011 residents per square mile across 68.7 sq mi. ZIP codes covered include 85233, 85234, 85295, 85296, 85297, 85298, 85299.

Neighborhoods served in Gilbert: Power Ranch, Agritopia, Gilbert Heights, Windsor Park, Val Vista Lakes — and every surrounding area.