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Oakland, CA Environmental Rules: Erosion Control (2026)

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

Key Facts

Permit trigger
>50 cubic yards on a slope over 20%
Permit trigger
>500 cubic yards combined excavation and fill
Permit trigger
Land disturbance of 1 acre or more
Storm water
Discharging concentrated flow onto neighbors is unlawful
Security required
100% of engineer's estimated cost of work
Enforced by
City Engineer / Building Official
Adopted by
Ord. No. 13861 § 4, eff. 9-15-2025

Summary

Oakland requires a grading permit from the City Engineer or Building Official before any excavation or fill exceeding fifty cubic yards on a slope over 20%, any work totaling more than five hundred cubic yards, or land disturbance over an acre, under Chapter 18B of the Building Code amendments. Applications need an engineer-prepared drainage plan, and a separate section bars discharging concentrated storm water onto a neighboring property without an approved method.

No person shall do or cause any grading in private or public property without first having obtained a permit to do so from the City Engineer or Building Official whenever such grading will result in any of the following: ... The volume of excavation and fill combined will exceed five hundred (500) cubic yards on a parcel or contiguous parcels. ... Section 1815B.1 General. Except as established in this Section, it shall be unlawful for anyone to discharge or channel concentrated flow of storm water onto neighboring property.

Source: Oakland Municipal CodeView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 102 | Planning Code: Supplement 59).

Full Breakdown

2075, added by Ord. No. 5:1 (excavation); work within fifteen feet of a property line that breaches a 2:1 line from the boundary; grading near a building, pool, or retaining wall exceeding five feet of unretained slope; any grading in a designated Land Stability Problem Area regardless of volume; land disturbance on slopes over 20%; combined excavation and fill over 500 cubic yards; and grading, clearing, grubbing or land disturbance covering an acre or more. 2 exempts temporary street excavations already permitted under Title 12, excavations fully retained by a permitted structure on slopes of 10% or less, supervised test borings, individual cemetery plots, water wells, and gardening or agriculture.

3 needs a vicinity/site/grading plan, an erosion and sedimentation control plan, statements from the civil engineer in responsible charge, a soils report, a work schedule, a Master Fee Schedule deposit, a cost estimate, and proposed dust control measures. 6(4)) must coordinate temporary and final drainage facilities with the erosion controls and include hydrology/hydraulic calculations when required. 1 makes it unlawful to discharge or channel concentrated storm water onto neighboring property except through City-approved methods, draining to an improved street, an on-site dissipater at least fifteen feet from the property line, pumping to an approved disposal point, or a discretionary connection permit to the public storm sewer from the City Engineer. Every grading permit also requires a performance security equal to 100% of the engineer's estimated cost of work.

Violations & Fines

Section 1813B subjects any violation of Chapter 18B, including grading without a required permit or an unapproved storm water discharge under Section 1815B, to City abatement, with costs, fees, penalties, and accruing interest collected under Municipal Code Chapters 1.08, 1.12, and 15.08. The Building Official can also suspend or revoke a grading permit for noncompliance, and if a permittee fails to timely abate a hazard, the posted performance security is applied through Summary Abatement.

Frequently Asked Questions

When does Oakland require a grading permit?
A permit is required whenever excavation or fill exceeds 50 cubic yards on a slope over 20% or with more than five feet of vertical cut or fill, whenever combined excavation and fill exceeds 500 cubic yards, or whenever grading disturbs an acre or more, per Municipal Code Section 18028.1. Several smaller exemptions apply, such as excavations fully retained by a permitted building on gentle slopes.
Can storm water be drained onto a neighboring lot in Oakland?
No. Section 1815B.1 makes it unlawful to discharge or channel concentrated storm water flow onto neighboring property except through approved methods: draining to an improved street, an on-site dissipater at least fifteen feet from the property line, pumping to an approved disposal point, or a discretionary connection permit to the public storm sewer issued by the City Engineer.
What has to be in a grading permit application?
Under Section 18028.3, the application needs a vicinity map, site and grading plan, an erosion and sedimentation control plan, statements from the civil engineer in responsible charge, a soils report, a proposed work schedule, a Master Fee Schedule deposit, a cost estimate, and proposed dust control measures: all submitted in triplicate.
Is a security deposit required for grading work?
Yes. Every grading permit requires a performance security equal to 100% of the civil engineer's estimated cost of the work, in cash, a cashier's check, a surety bond, or an irrevocable letter of credit. If the permittee fails to timely abate a hazard, the City can apply the security through Summary Abatement.

Sources & Official References

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