Building Setbacks & Zoning in Hillsboro, OR (2026)
3 verified building setbacks & zoning rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
In Hillsboro's SR-6 single detached and middle housing zone, a house needs a 20-foot front yard, a 5-foot side yard and a 20-foot rear yard. Corner lots get 10 feet on one street frontage and 20 feet on the other, garage doors sit 20 feet back, and no maximum setback applies. Section 12.50.130 applies these minimums to any structure or part of a structure more than 24 inches above grade.
Hillsboro SR-6 Zone Setback Rules
Some RestrictionsHillsboro Community Development Code §§ 12.21.450, Table 12.21.450-1; 12.50.130(A)
Minimum Setbacks* ... For cottage clusters, the minimum front yard and rear setback to dwellings is 10 feet; the minimum front and rear yard setback to garage doors is 20 feet. ... Side yard setbacks on the common wall shall be waived for townhouses permitted under Table 12.21.420-1. ... • Front Yard (interior lots): to dwelling or garage door 20 feet ... • Front Yard (corner lots) ... ◦ to dwe...
Structure Height Limits
In Hillsboro's R-6 (single detached, duplex and triplex) residential zone, Table 12.21.450-1 caps building height at '2½ stories or 35 feet, whichever is less.' Height is measured under Community Development Code § 12.50.140 from finished grade at the center of the front building plane, following the illustrated methods in Figure 12.50.140-A for flat, mansard and pitched or hip roofs; the standard applies citywide within the R-6 zone, one of several residential base zones.
Hillsboro R-6 Zone Building Height Limits
Some RestrictionsHillsboro Community Development Code § 12.21.450, Table 12.21.450-1; § 12.50.140(B)
Table 12.21.450-1: Development Standards in the SR-6 Zone ... Maximum Building Height* 2½ stories or 35 feet, whichever is less. See measurement and illustration in Section 12.50.140; see also definition of half-story in Section 12.01.500. Maximum height for cottage clusters is in Subsection 15.50.715.E.4. ... B.Standards and Measurement Methodology.1.Standards. Except as provided under subsect...
Lot Coverage Limits
In Hillsboro's R-10 single-family zone, buildings can cover no more than 40% of an interior lot or 45% of a corner lot; other zones set their own caps.
Hillsboro Max Lot Coverage Limits
Some RestrictionsHillsboro Community Development Code § 12.21.150 (Table 12.21.150-1)
Maximum Lot Coverage 40% for interior lot 45% for corner lot Does not apply to cottage cluster lots. Lot coverage for townhouses is calculated based on the overall townhouse project, rather than each townhouse lot. Minimum Usable Open Space Variable See Section 12.50.210 Minimum Landscaping Not applicable * Standards illustrated in Figure 12.21.150-A Figure 12.21.150-A: Development Standards in...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Building Setbacks & Zoning in Washington County →