Hillsboro, OR Zoning Overlays & Bonuses: Density Bonus Law (2026)

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 dwelling must meet the following standards:a.Visitable Entrance. At least 1 entrance must be accessible via a route that does not have any stairs between it and the street lot line or an on-site parking space. The slope of the route may not exceed 1:8.b.Visitable Bathroom. At least 1 bathroom with a sink and toilet must be designed to accommodate an unobstructed circle that is at least 60 inches in diameter. The visitable bathroom must be on the same floor as the visitable entrance or be accessible from the visitable entrance via a ramp, elevator or lift.c.Visitable Living Area. There must be at least 200 square feet of living area on the same floor as the visitable entrance or 200 square feet of living area must be accessible from the visitable entrance via a ramp, elevator or lift.d.Visitable Doors. All door openings between and including the visitable entrance, visitable living area, and the visitable bathroom must be at least 34 inches wide.e.Adjustments to the requirements of Paragraphs 4.a through 4.d above are prohibited. (Ord. 6440 § 1, 2023)