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  2. ADU permits accelerated as Portland removed barriers.
?WHY IS
RENT HIGH?
ADU reform → permits

ADU permits accelerated as Portland removed barriers.

The paper places parking, occupancy, design, fee, and education changes directly on the permit timeline.

REDRAWN FROM STUDY DATAFigure 2 · ADU permitting and reforms in Portland
Figure 2 · ADU permitting and reforms in PortlandThe paper places parking, occupancy, design, fee, and education changes directly on the permit timeline. Values digitized from Figure 2; alternate-year values shown to keep the mobile chart legible in the archived publication; minor reading error is possible.0200400600ADU permitsYearAnnual ADU permits200020022004200620082010201220142016
Figure 2 · ADU permitting and reforms in Portland. Values digitized from Figure 2; alternate-year values shown to keep the mobile chart legible in the archived publication; minor reading error is possible.
YearAnnual ADU permits
200025
200235
200445
200655
200870
201090
2012210
2014380
2016620

Source: Chapple et al. (2017) · Figure 2; PDF p. 9

Data: Values digitized from Figure 2; alternate-year values shown to keep the mobile chart legible in the archived publication; minor reading error is possible.

Keep in mind: The timeline is descriptive: several policies, financing conditions, outreach efforts, and housing demand changed together.

Share the evidence

ADU permits accelerated as Portland removed barriers.

The paper places parking, occupancy, design, fee, and education changes directly on the permit timeline.

Source
Chapple et al. (2017)
Figure
Figure 2 · ADU permitting and reforms in Portland · Figure 2; PDF p. 9
Redraw data
Values digitized from Figure 2; alternate-year values shown to keep the mobile chart legible in the archived publication; minor reading error is possible.
Keep in mind
The timeline is descriptive: several policies, financing conditions, outreach efforts, and housing demand changed together.
View values used in redraw
Values used to redraw Figure 2 · ADU permitting and reforms in Portland
YearAnnual ADU permits
200025
200235
200445
200655
200870
201090
2012210
2014380
2016620
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?WHY IS
RENT HIGH?

Too many people are chasing too few homes. See why—and what communities can do about it.

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