Cost of accessory dwelling unit — Gilbert, AZ
Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.
About this service
Building an ADU involves several variables that shift the total investment. Your site conditions, the type of foundation, and the quality of finishes you choose will dictate whether you land on the lower or higher end of the spectrum. Because every lot is unique, we provide a breakdown of your specific project requirements to ensure full transparency. Exact pricing confirmed free on the call.
Frequently asked in Gilbert
What's the cost to build an ADU in Gilbert?
What is 'local ADU' service in Gilbert?
What are the benefits of an ADU unit in Gilbert?
An ADU unit in Gilbert offers numerous benefits, including increased property value, potential rental income, and flexible living arrangements for family members. It's an excellent way to maximize your existing property's utility without moving. ADUs provide a private, independent living space. We can help you design and build a unit that enhances your lifestyle and investment. Let's discuss the possibilities for your Gilbert home.
What are the requirements for ADU builders in Gilbert?
What are accessory dwelling unit grants in Gilbert?
Information on specific accessory dwelling unit grants in Gilbert can change, but we can help you explore potential avenues. Sometimes, local or state initiatives may offer assistance for homeowners looking to add ADUs. It's always worth investigating available programs. We can provide guidance and point you toward resources. Let's see what might be available for your ADU project in Gilbert.
What's the process for building ADUs near me in Gilbert?
What are accessory dwelling units (ADUs) in Gilbert?
Accessory dwelling units (ADUs) in Gilbert are secondary housing units on a property, such as a backyard cottage or an in-law suite. They offer independent living spaces and are a great way to add value and utility to your home. These units are designed to be functional and comfortable. We can help you design and build the perfect ADU for your Gilbert property. Let's get started.
Also serving nearby: Chandler · Mesa · Tempe · Phoenix · Scottsdale
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
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, Windhaven, The Islands, Gilbert Commons, Warner Groves — and every surrounding area.
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