ADU Knowledge Base

Frequently Asked Questions

Everything you need to know about building an ADU and how our consulting services can help you navigate the process.

ADU Basics

What is an ADU?

An Accessory Dwelling Unit (ADU) is a smaller, independent residential dwelling unit located on the same lot as a stand-alone (i.e., detached) single-family home.

How much does it cost to build an ADU?

Costs vary widely based on size, location, and design, but typically range from $150,000 to $350,000+.

What permits are required?

Most ADUs require building permits, zoning clearance, and sometimes utility upgrades.

Architectural blueprints and a house model

Construction & Services

How long does it take to build an ADU?

The timeline typically ranges from 6 to 12 months, including design, permitting, and construction.

What are ADU consulting services?

We provide expert guidance through the entire process, from feasibility studies and design to permitting and contractor selection.

Do I need a professional to help with planning?

Yes, navigating local zoning laws and building codes is complex; professional advice ensures your project is compliant and cost-effective.