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Development Services

From Concept to Construction

Phone: 503-823-7300

TTY : 503-823-6868

1900 SW 4th Ave, Portland, OR 97201

Sanitation Permits

Sanitation permits are issued for work related to environmental soils & sanitation control such as cesspools, septic tanks and other sewage disposal systems.


New Construction Permit

A residential/commercial new construction permit is required for all new single family construction and new commercial/multi-family construction.

Repair Permit

A residential/commercial repair permit is required to repair an on-site sewage disposal system.

Alteration Permit

A residential/commercial alteration permit is required to replace or increase the size of an on-site sewage disposal system.

Decommission Permit

A residential/commercial decommission permit is needed when the tank, cesspool or seepage pit needs to be pumped to remove all sewage and filled with sand, ¾” minus gravel, or the container needs to be removed and properly disposed of.

Land Use/On-Site Sewage Disposal System Certification

A commercial/residential on-site sewage disposal system certification is a program of Multnomah County managed by the Bureau of Development Services.

Land Feasibility Study

A Land Feasibility Study is conducted to evaluate and determine the suitability of the soils relative to a parcel of land where an on-site sewage system would be used.

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.