All About ADUs

Gain Accessory Dwelling Unit (ADU) expertise for Seattle and become an 'ADU Specialist'

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Join us for two 2-hour webinars intended for real estate and building industry professionals looking to increase their knowledge about ADU development in the City of Seattle.

Participants will gain critical information to help them to respond to increasing client demand for properties with ADU potential, as well as the opportunity to earn the 'ADU Specialist' professional accreditation

Increasing numbers of prospective home buyers and homeowners are interested in building an ADU on their property. Professionals on the cutting edge of this emerging development trend can better serve their homeowner/developer clients by understanding site eligibility, development process and costs, and the return on investment of ADUs in their local area.

This course is intended to help industry professionals understand the basic planning and building regulations for ADU development in Seattle per land use and energy code updates and to provide insight into ADU regulations in the broader Seattle metro area.

Promote your new ADU expertise and become an 'ADU Specialist'! 

Attend this training and become eligible to earn the nationally-recognized 'ADU Specialist' accreditation in order to display your ADU expertise to the market. Join the network of over 300 accredited professionals across 13 states who have leveraged the designation to add valuable credibility to their business and tapped into this growing market with the backing of an organization that has trained and accredited thousands of professionals across the country on sustainable building practices. 

Participants must attend one of our qualified trainings (this 'All About ADUs' class is one of them) and pass an accreditation exam. After passing the exam, Earth Advantage provides a registry listing, logo package, and marketing support for ADU Specialists to then promote their newly acquired designation via business cards, email signatures and website in order to differentiate themselves from other professionals.

'All About ADUs' participants who would like to pursue the 'ADU Specialist' designation will need to register for the exam separately (learn more and register here). Note: 'ADU Specialist' is an optional designation and it is not required to attend the 'All About ADUs' course.

Learning Objectives
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  • Understand what makes a property ADU-ready/eligible in Seattle, WA
  • Learn what is involved in the process of getting approved to build an ADU
  • Analyze taxation, valuation and financing options for ADUs
  • Understand the ADU design, permitting, and building process (attached, detached, and garage conversion)
  • Gain access to resources to help your clients plan for their ADU (including a budget sample, contract types, development rebate programs, and more)
  • Gain insight on ADU regulations in the broader Seattle, WA region
  • Get answers to your ADU-specific questions

When & Where
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Wednesday and Thursday, December 6 & 7
9:00 AM - 11:00 AM (both days)

Live Webinar
Intended for audiences in Seattle, WA

CEs & Cost
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Continuing Education
WA DOL (Real Estate): 4 CEs
Earth Advantage Broker Renewal: 4 CEs
Accredited Green Appraisers: 4 CEs

Course Fee 
$90 | Regular Admission
$80 | SKCR members, Earth Advantage Accredited Professionals (Earth Advantage Brokers, Accredited Green Appraisers, Sustainable Homes Professionals, Zero Energy Professionals, EA Builders, ADU Specialists) or Northwest EcoBuilding Guild Members
(Normally $125 for in-person class)

Registration includes a free e-book written by our ADU course developer, Kol Peterson: Backdoor Revolution - The Definitive Guide to ADU Development 

'ADU Specialist' Designation Exam (optional)
$90 | Regular Admission (click here to learn more and register separately)

Questions? Please contact the EA Education Team at or (503) 968-7160 x60.

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Appraisers, Architects, Builders/Contractors, Consultants, Developers, Program Representatives, Real Estate Professionals, Remodelers

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Sheri Newbold
Sheri Newbold: Architect & Owner of live-work-play
Sheri brings over 20 years’ experience into designing homes, ADUs, additions and renovations, and anything between, that her clients dream of. Sheri has been teaching Seattle-ites about creating detached ADUs for many years, is fluent in sustainable and energy-efficient design, and worked among a committed group of volunteers successfully advocating for the passage of the new ADU changes to the land use code in Seattle in 2019.