Zoning Overlays & Bonuses in Hillsboro, OR (2026)
2 verified zoning overlays & bonuses rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Density Bonus Law
In Hillsboro's Witch Hazel Village South Plan District, subdivisions with visitable homes earn 1 bonus unit per visitable unit, up to 150% of the zone's maximum density, under Community Development Code Section 12.68.710.
Hillsboro WHVS Density Bonus for Visitable Homes
Light RestrictionsHillsboro Community Development Code § 12.68.710.A.3.c
c.Density Bonus. For new residential subdivisions that include 1 or more visitable units, a density bonus of 1 additional unit (above the established maximum density) is allowed. The density bonus may be applied at a ratio of 1 bonus unit per visitable unit, up to 150% of the maximum density of the underlying zone.4.Visitable Unit Standard. To be considered a visitable dwelling unit, the dwelli...
Downtown Design Guide
New residential and commercial construction, and any exterior alteration or demolition, inside Hillsboro's Downtown Plan District must replicate architectural styles characteristic of 1890s-1930s downtown buildings. Community Development Code § 12.61.800 sets specific garage, porch, foundation, siding, window, roof and lighting standards, plus a banned-materials list, enforced through Development Review approval rather than a fine, with a narrow exemption for structures inconsistent with or too deteriorated to meet the era.
Hillsboro Downtown Design Guide: Architectural Standards
Significant RestrictionsHillsboro Community Development Code § 12.61.800
A.Applicability.1.The standards in this section apply in the Downtown Plan District as shown on Figure 12.61.200-A. Within this area, new development may replace deteriorated structures, and existing structures may have exterior alterations, subject to these standards and the process described in Subsection 12.61.700.I...B.Residential Construction. Within the boundaries shown on Figure 12.61.20...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Zoning Overlays & Bonuses in Washington County →