In the urban low-density residential districts (R-2.5 to R-30), the ZDO limits maximum lot coverage to 50 percent. In a planned unit development, maximum lot coverage rises to 65 percent.
Lot coverage, the share of a lot buildings may cover, is set per district in the ZDO. In the urban low-density residential zoning districts (R-2.5 through R-30), maximum lot coverage is 50 percent. Village small-lot and townhouse districts also cap coverage at 50 percent, rising to 65 percent in some higher-density configurations. In a planned unit development, maximum lot coverage is 65 percent. For middle-housing lots, coverage is calculated across the entire parent lot. Confirm your specific district and any overlay with county Planning.
Exceeding the maximum lot coverage is a ZDO violation that can stop a building permit; relief requires a variance under ZDO Section 1205 or redesign to reduce covered area.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Clackamas County's lot coverage limits rules stack up against other locations.
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