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Bend, OR Fence Regulations: Retaining Walls (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Cut slope cap over 5 ft
2:1 unless engineered wall
Fill slope cap over 5 ft deep
2:1 unless engineered wall
Rock/cemented tuff cut cap
0.5:1
Fill on natural slope
never steeper than 2:1
Adjoining-property duty
owner pays for wall or interior sloping
Penalty
Class A civil infraction, BC 16.05.050

Summary

In the City of Bend, cut slopes over five feet high and fill slopes deeper than five feet cannot exceed a 2:1 slope unless the City approves an engineered retaining wall, under Bend Code § 16.10.070(B). An owner who changes a site's grade must also protect adjoining property with an engineered wall or by keeping the slope entirely within their own lot.

Retaining wall means a wall designed to resist the lateral displacement of soil or other material, as defined in the current International Building Code (IBC). ... 1. ... Cut slopes greater than five feet in height must not exceed a slope of 2:1 except where approved retaining walls are engineered and installed, and where trenches are refilled with material from the excavation. Cut slopes in solid rock or cemented tuff must not exceed a slope of 0.5:1. ... 4. ... Fill slopes exceeding five feet in depth must be no steeper than 2:1, except where approved retaining walls are engineered and installed. ... 6. ... When the owner of any parcel alters the level or existing grade of a site by a fill or excavation, the owner shall at their own expense protect all adjoining property from encroachment by such fill, or from danger of collapse due to such excavation, either by the erection of an engineered retaining wall or by sloping the sides of such fill or excavation entirely within the confines of the site in a manner approved by the City.

Full Breakdown

060). 5:1. Fill slopes deeper than five feet get the same 2:1 cap and the same engineered-wall exception, and fill can never be built on a natural slope steeper than 2:1 in the first place. 070(B)(6) makes the owner responsible, at their own expense, for protecting adjoining property from encroachment or collapse, either by erecting an engineered retaining wall or by sloping the cut or fill entirely within their own site in a manner the City approves. 070(B)(7), (8)). 10. 015(A)(7) to regulate retaining walls as part of enforcing the State of Oregon's adopted building codes within city limits, alongside related items like fences, encroachments and protection of adjoining property.

Violations & Fines

Building a cut or fill slope beyond the 2:1 (or 0.5:1 in rock) standard without an engineered retaining wall approved through the grading permit process violates BC 16.10.070(B). Title 16 violations, including noncompliant slopes, are Class A civil infractions under BC 16.05.050, with each day a violation continues charged separately, and the City can also withhold grading permit inspections or approvals until the wall or slope is corrected.

Frequently Asked Questions

Does Bend require an engineered retaining wall for a steep cut slope?
Yes, if the cut is over five feet high and steeper than 2:1 (or steeper than 0.5:1 in solid rock or cemented tuff), BC 16.10.070(B)(1) requires an approved, engineered retaining wall rather than an unsupported slope.
How steep can a fill slope be in Bend without a retaining wall?
No steeper than 2:1 once the fill exceeds five feet in depth, and fill can never be placed on a natural slope steeper than 2:1 at all, per BC 16.10.070(B)(3), (4). An engineered retaining wall is the way to exceed that ratio.
Who pays if grading on my Bend property threatens my neighbor's lot?
You do. BC 16.10.070(B)(6) makes the owner who alters a site's grade responsible, at their own expense, for protecting adjoining property from encroachment or collapse, by an engineered retaining wall or by sloping entirely within their own site.
Which Bend department enforces grading and retaining wall rules?
Bend Community Development, through the clearing, grading and erosion control permit process under BC Chapter 16.10, with the Building Official also holding authority over retaining walls under the adopted state building codes per BC 9.10.015(A)(7).

Sources & Official References

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