Cost of accessory dwelling unit — Waco, TX
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
The total investment for an ADU depends on several moving parts, including your property’s site conditions, the complexity of your site plan, and the high-end finishes you select. Whether you are building a detached cottage or converting a garage, costs vary based on utility connections and local labor rates. Exact pricing confirmed free on the call.
Frequently asked in Waco
What are the considerations for a backyard accessory dwelling unit in Waco?
What does accessory dwelling unit construction involve in Waco?
What is an affordable accessory dwelling unit in Waco?
What does accessory dwelling unit mean in Waco?
In Waco, an accessory dwelling unit (ADU) means a secondary, independent living space on a single-family residential lot. This can be a detached structure like a backyard cottage or an attached unit, such as an in-law suite or a conversion of an existing space like a garage. ADUs provide additional housing options, rental income potential, or accommodations for family members, all while adhering to Waco's specific zoning and building regulations. They are a flexible way to enhance property utility.
Are prefabricated accessory dwelling units suitable for Waco?
What is the ADU cost in Waco?
Who is an ADU builder in Waco?
Also serving nearby: Temple · Killeen · Georgetown · Bryan · Round Rock
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Waco — population 144,816; about 1,591 residents per square mile across 91.0 sq mi. ZIP codes covered include 76701, 76702, 76703, 76704, 76705, 76706, 76707, 76708.
Neighborhoods served in Waco: Woodway, Hewitt, McGregor, Bellmead, Robinson — and every surrounding area.
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