Portland City Code ch. 14 (Land Use Code)

Citation: Portland City Code ch. 14 (Land Use Code)
Jurisdiction: Portland (municipal)
Source: Official source
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3. Secondary in nature, clearly incidental and an ADU, the design of the ADU shall take
subordinate to the principal use in terms into consideration to the extent
of area and function. practicable the privacy of adjacent
4. Located on the same lot as the principal properties.
use unless otherwise permitted. 5. An ADU shall be limited to a gross floor
5. Consistent with the intent of the zone. area of 2/3 of the gross floor area of the
B. No accessory use or uses within a building shall largest principal unit on the lot. The
occupy more than a combined total of 25% of aggregate square footage of detached
the floor area of the principal building, with the ADUs on a lot shall not exceed the gross
exception of required off-street parking, unless floor area of the principal structure.
otherwise provided in Subsection 6.6.2 below. 6. ADUs shall be exempt from maximum lot
In the case of multi-tenant buildings, this coverage and minimum lot area per
standard shall apply separately to each leased dwelling unit requirements.
portion of the principal building. 7. Detached ADUs shall be limited to a
C. No accessory use or uses not within a building maximum height of 18 feet, unless
shall occupy more than a combined total of constructed above a garage, in which case
25% of the unbuilt lot area, with the exception the height of the structure shall be limited
of off-street parking or as otherwise provided to 25 feet.
in Subsection 6.6.2. 8. In residential zones, detached ADUs,
regardless of size, shall be subject to side
6.6.2 Standards for specific accessory uses and rear setbacks for detached accessory
A. Accessory Dwelling Units (ADUs) structures less than 250 square feet, as
1. Accessory Dwelling Units (ADUs) shall be established in Article 7.
permitted on all lawfully conforming