Permit Requirements for Gaston, Oregon

For Plumbing projects in Gaston, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Washington County.

Authority Having Jurisdiction (AHJ)

Most jurisdictions require permits for Plumbing work to ensure safety and code compliance. The governing body responsible for issuing these permits varies by specific location:

General Plumbing Guidelines

Permits are usually required for new installations, structural modifications, or major repairs. While minor maintenance or cosmetic updates may be exempt, landowners should always verify local codes before work begins.

Because Gaston is located within Washington County, the following broader county regulations may also apply to your project:

Oregon, Washington County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas

Washington County, Oregon Plumbing Permit Requirements

Washington County Building Services is responsible for issuing plumbing permits for properties located in unincorporated areas of the county. These permits ensure that all plumbing work meets the minimum standards for safe construction as required by the State of Oregon Building Code.

When a Permit is Required

A plumbing permit is generally required for the following:

When a Permit is Not Required

Permits are typically not required for "ordinary minor repairs" on your own property. This includes the repair, replacement, or maintenance of existing, accessible fixtures, parts, appliances, and their related water and drain attachments, as long as the entire existing plumbing system is not altered. Examples of work that may not require a permit include replacing a sink, toilet, faucet (if not concealed in a wall), countertops, shower heads, or hose bibb.

How to Apply for a Permit

Permit applications can be submitted via email to [email protected] or in person if you are the homeowner applicant. Washington County also offers an online portal, Building and Development Application Services (BDAS), for submitting applications for electrical, plumbing, and mechanical permits, among others. Plans and fees must be submitted within 30 days of application submission.

Owner-Performed Work

The owner of a one- or two-family dwelling may perform their own plumbing work or hire a licensed plumbing contractor. Any other individual performing plumbing work must be a licensed plumber working for a licensed plumbing contractor.

Resources to Learn More

The following statewide building codes and regulations apply universally to all jurisdictions within Oregon:

Oregon Plumbing Legislation, Codes, and Guidelines

Oregon Plumbing Codes and Legislation

The state of Oregon regulates plumbing installations, repairs, and alterations through the Oregon Plumbing Specialty Code (OPSC). The current edition is the 2023 OPSC, which became effective on October 1, 2023. This code is based on the 2021 edition of the Uniform Plumbing Code (UPC), published by the International Association of Plumbing and Mechanical Officials (IAPMO), and incorporates specific amendments tailored to Oregon's local needs, climate, and building standards.

Regulatory Agencies and Oversight

The primary state agency responsible for the adoption, administration, and enforcement of plumbing codes in Oregon is the Building Codes Division (BCD), which operates under the Oregon Department of Consumer and Business Services (DCBS). The BCD is authorized by Oregon Revised Statutes (ORS) Chapter 447 and Chapter 693 to establish statewide plumbing standards and manage the licensing program for plumbing professionals. The State Plumbing Board assists the BCD by providing expertise, overseeing licensing, and ensuring that plumbing work meets minimum safety standards through the code adoption and review process.

Resources to Learn More

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