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The City of Portland, Oregon

Portland Bureau of Transportation

Phone: 503-823-5185

Fax: 503-823-7576

1120 SW Fifth Ave, Suite 800, Portland, OR 97204

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South Portland FAQ's

Why change the leading zero addresses?

Multiple databases and information technology applications have difficulty with the leading zero address or are simply do not support leading zero addresses. As a recent example, testing of the City’s new 9-1-1 telephone software found that only leading zero addresses failed testing. While the City would not upgrade this software without first resolving this issue, the need for information technology workarounds is increasingly problematic, and still results in additional 9-1-1 dispatching steps when the software works as intended. These additional dispatching steps to confirm correct addressing take valuable time from 9-1-1 dispatchers, and more importantly are often stressful to 9-1-1 callers, who may simply be unable to ascertain their correct location.

The ongoing time and expense dealing with leading zero addressing will be eliminated with a one-time expense to replace street signs in this area, including for north-south streets. The leading zero will be eliminated for east-west streets, with no address change for north-south streets. However, all addresses east of SW Naito Parkway are planned to change from Southwest to South beginning in May 2025 pending final City Council approval and budgeting for the street sign changes. The City of Portland administers addressing for unincorporated Multnomah County, including for the Riverdale neighborhood north of Lake Oswego.

Examples of address changes

Current Mailing Address 

Future Mailing Address

0715 SW Bancroft Street
3303 SW Moody Avenue 

715 South Bancroft Street
3303 South Moody Avenue

6331 SW Radcliff Street
5308 SE Martin Court 

6331 SW Radcliffe Street
5308 SE Martins Court                                                 

What is the timeline?

A five-year transition period of both old and new street names is anticipated to occur from May 2020 through May 2025, with new street name signs being installed in 2020 alongside existing street name signs.  Old street name signs will be removed in May 2025.  If your property address is changing, please do not begin changing your address until you receive a subsequent letter this summer confirming the effective date of the street name change.


Open houses are "drop in" format at any time during the hours indicated.


Property owner mailing (completed)


Open House #1 at Mirabella Auditorium, 3550 SW Bond Avenue on Thursday, 3/08/18 from 11:00 AM to 12:45 PM (completed)

3/13/18 at 12:30 PM

Planning & Sustainability Commission hearing.  The PSC voted 9-0 to recommend that City Council proceed with adopting the South Portland addressing sector ("S") and standarding the names of SW Radcliffe Street and Lane and SE Martins Court.  (completed)

3/15/18 from 7:00 to 8:45 PM

Open House #2 at Riverdale Grade School Library, 11733 SW Breyman Ave. (completed)

3/19/18 at 7:00 PM

SWNI Transportation Committee briefing, 7688 SW Capitol Hwy., Room 8 (completed)


Open House #3 at Mirabella Auditorium, 3550 SW Bond Avenue on Thursday, 3/22/18 from 4:00 to 5:45 PM (completed)


Open House #4 at Riverdale High School Maverick Room, 9737 SW Terwilliger Blvd  in conjunction with Collins View Neighborhood Association meeting from 7:00 to 8:00 PM (completed)


5/31/18 at 2:00 PM


City Council hearing, 1221 SW Fourth Avenue, Second Floor


What neighborhoods will benefit from the change?

About four-fifths of the streets changing will be in the South Portland Neighborhood Association area, which will become South Portland.  The remaining one-fifth of streets changing to South Portland are in Collins View, the Riverplace area of Portland Downtown, and the Riverdale area of Multnomah County, with very small portions of Homestead and South Burlingame changing as well.