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The Big Small House

Class Description

The increasing cost of housing and the need for dwellings in the low or mid-income population is a major concern in Seattle’s metropolitan area. Whether it is a backyard second space or you are interested in building a separate rental, the need for small housing has been propelled by new designs, growing interest, and new city ordinances. 

In recent years, the City of Seattle has developed and approved codes and regulations for facilitating the construction of attached dwelling units (ADU), and detached dwelling units (DADU). In contrast to other workshops and lectures offered in Seattle and Portland, this course will be focused on how to design an ADU-DADU; the understanding of codes, regulations and the construction process. Classes will include: lectures, slide presentations, a workshop and guest lecturers. 

Whether this course is satisfying continuing education credits for your architectural license, or you are simply ready to take the next step in building an addition or second living space, this course will prepare you for the new changes to build your structure. 


COVID-19 Policy – At this time Cornish  College of the Arts Vaccination Policy states that all students must: (a) establish that they have received the COVID-19 vaccine; (b) obtain an approved exemption. Students will be asked to show proof of vaccination before entering any Cornish buildings.

Back to class safely – While this course is in person, we would like to offer this as a synchronous online option. Please email for any questions.

Program Continuing Education

Instructor Javier Gómez Alvarez-Tostado

Dates/Times

Registration is currently full or closed at this time. 

  • Winter: Jan 27th to March 17th
    • Thursdays, 6:00 – 8:00 pm
  • Spring: March 24th to May 12th
    • Thursdays, 6:00 – 8:00 pm

Ages 18+

Discipline Interior Architecture

Price $720 for 8 sessions

Dress Requirements

There are no dress requirements for this course.

Location: Main Cornish Campus, 1000 Lenora St, Seattle, WA, 98121

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