| Abraham, Simon, Duplex | Portland | Building | 1999 |
| Adams, Charles F., House | Portland | Building | 1981 |
| Ainsworth, Maud and Belle, House | Portland | Building | 1986 |
| Albee, H. Russell, House | Portland | Building | 1992 |
| Albers Brothers Milling Company | Portland | Building | 1984 |
| Alco Apartments | Portland | Building | 2017 |
| Alderway Building | Portland | Building | 2024 |
| Alphabet Historic District (Additional Documentation) | Portland | District | 2000 |
| Ambassador Apartments | Portland | Building | 1979 |
| Ambruster, Frederick, Cottage | Portland | Building | 2001 |
| American Apartment Building | Portland | Building | 1993 |
| American Can Company Complex | Portland | Building | 1996 |
| Amundsen, Roy E. and Hildur L., House | Gresham | Building | 2019 |
| Anderson, Emanuel and Christina, House | Gresham | Building | 2005 |
| Annand-Loomis House | Portland | Building | 1997 |
| Arleta Branch Library | Portland | Building | 2016 |
| Arlington Club | Portland | Building | 2010 |
| Arminius Hotel | Portland | Building | 1988 |
| Armstrong, Alfred J. and Georgia A., House | Portland | Building | 2002 |
| Arnold-Park Log Home | Portland | Building | 2010 |
| Ashley, Mark A. M., House | Portland | Building | 1979 |
| Auditorium and Music Hall | Portland | Building | 1980 |
| Auto Freight Transport Building of Oregon and Washington | Portland | Building | 2005 |
| Auto Rest Garage | Portland | Building | 1996 |
| Autzen, Thomas J., House | Portland | Building | 1992 |
| Ayer, W. B., House | Portland | Building | 1991 |
| Ayer-Shea House | Portland | Building | 1982 |
| Bader, Louis J., House and Garden | Portland | Building | 1989 |
| Bagdad Theatre | Portland | Building | 1989 |
| Balch Gulch Bridge | Portland | Structure | 2025 |
| Balfour-Gutherie Building | Portland | Building | 2002 |
| Ball-Ehrman House | Portland | Building | 1991 |
| Ballou & Wright Company Building | Portland | Building | 1987 |
| Bank of California Building | Portland | Building | 1978 |
| Barber Block | Portland | Building | 1977 |
| Barnes, Frank C., House | Portland | Building | 1983 |
| Barnhart-Wright House | Portland | Building | 1997 |
| Bartman, Gustave, House | Portland | Building | 1989 |
| Baruh-Zell House | Portland | Building | 2007 |
| Bates, John M. and Elizabeth, House No. 1 | Portland | Building | 1990 |
| Bates-Seller House | Portland | Building | 1979 |
| Bay E, West Ankeny Car Barns | Portland | Building | 1978 |
| Becker, Christine, House | Portland | Building | 1991 |
| Bedell Building | Portland | Building | 1989 |
| Belle Court Apartments | Portland | Building | 1986 |
| Bennes, John Virginius and Annice, House | Portland | Building | 2013 |
| Benson Hotel | Portland | Building | 1986 |
| Benson, Simon, House | Portland | Building | 2002 |
| Berg, Charles F., Building | Portland | Building | 1983 |
| Bergman, Joseph, House | Portland | Building | 1983 |
| Beth Israel School | Portland | Building | 1978 |
| Biltmore Apartments | Portland | Building | 1991 |
| Bishop's House | Portland | Building | 1974 |
| Bishopcroft of the Episcopal Diocese of Oregon | Portland | Building | 2000 |
| Blake McFall Company Building | Portland | Building | 1990 |
| Blakely, Charles O. and Carie C., House | Portland | Building | 2019 |
| Bohnsen Cottages | Portland | Building | 2008 |
| Bonneville Dam Historic District NHL | Bonneville | District | 1986 |
| Bonneville Dam Historic District (Boundary Increase) NHL | Bonneville | District | 1987 |
| Boschke-Boyd House | Portland | Building | 2005 |
| Bowers, George W. and Hetty A., House | Portland | Building | 2011 |
| Bowles, Joseph R., House | Portland | Building | 1978 |
| Bowman, F. E., Apartments | Portland | Building | 1989 |
| Bowman, John and Ellen, House | Portland | Building | 2008 |
| Bradley, J. S., House | Portland | Building | 1991 |
| Brainard, William E., House | Portland | Building | 1979 |
| Braly, J. C., House | Portland | Building | 1991 |
| Bramhall, Jennie, House | Portland | Building | 1999 |
| Bretnor Apartments | Portland | Building | 1991 |
| Brick House Beautiful | Portland | Building | 2012 |
| Broadway Bridge | Portland | Structure | 2012 |
| Broadway Building | Portland | Building | 1996 |
| Broadway Hotel | Portland | Building | 1993 |
| Brown Apartments | Portland | Building | 1991 |
| Bruening, Henry C. and Wilhemina, House | Portland | Building | 2004 |
| Buck Apartment Building | Portland | Building | 1990 |
| Buckler-Henry House | Portland | Building | 1980 |
| Buehner, Philip, House | Portland | Building | 1980 |
| Bunyan, Paul, Statue | Portland | Structure | 2009 |
| Burke-Clark House | Portland | Building | 1982 |
| Burkes-Belluschi House | Portland | Building | 2025 |
| Burnside Bridge | Portland | Structure | 2012 |
| Burrell Heights Apartments | Portland | Building | 1997 |
| Burrell, Walter F., House | Portland | Building | 1990 |
| Burrell, Walter F., House (Boundary Increase) | Portland | Site | 1991 |
| Buyers Building | Portland | Building | 1994 |
| Bybee-Howell House | Sauvie Island | Building | 1974 |
| Calumet Hotel | Portland | Building | 1984 |
| Calvary Presbyterian Church | Portland | Building | 1972 |
| Campbell Court Hotel | Portland | Building | 2008 |
| Campbell Hotel | Portland | Building | 1988 |
| Campbell Townhouses | Portland | Building | 1980 |
| Campbell, David, Memorial | Portland | Object | 2010 |
| Cannady, Beatrice Morrow and E.D., House | Portland | Building | 2024 |
| Cardwell-Holman House | Portland | Building | 2005 |
| Cardwell-Parrish House | Portland | Building | 1991 |
| Carey, Judge Charles Henry and Mary Bidwell, House | Portland | Building | 2022 |
| Central Building, Public Library | Portland | Building | 1979 |
| Chamberlain, George Earle, House | Portland | Building | 1991 |
| Chown, Francis R., House | Portland | Building | 1990 |
| Clarke-Mossman House | Portland | Building | 2002 |
| Clovelly Garden Apartments | Portland | Building | 1983 |
| Clyde Hotel | Portland | Building | 1994 |
| Cobb, Samuel, House | Portland | Building | 1999 |
| Cobbs, Frank J. and Maude Louise, Estate | Portland | Building | 2002 |
| Cohn-Sichel House | Portland | Building | 2008 |
| Cole, David, House | Portland | Building | 1980 |
| Coleman-Scott House | Portland | Building | 1985 |
| Columbia River Highway Historic District NHL | Troutdale | District | 1983 |
| Commodore Hotel | Portland | Building | 1984 |
| Concord Building | Portland | Building | 1977 |
| Cook, Jacob H. and Etna M., House | Portland | Building | 2021 |
| Corbett Brothers Auto Storage Garage | Portland | Building | 1996 |
| Corbett, Elliott R., House | Portland | Building | 1996 |
| Corbett, H. L. and Gretchen Hoyt, House | Portland | Building | 1991 |
| Corkish Apartments | Portland | Building | 1981 |
| Cornelius Hotel | Portland | Building | 1986 |
| Costanzo Family House | Portland | Building | 2007 |
| Costello, James C. and Mary A., House | Portland | Building | 2001 |
| Cotillion Hall | Portland | Building | 1979 |
| Couch Family Investment Development | Portland | Building | 1980 |
| Crook, Charles, House | Portland | Building | 1997 |
| Crum, Virgil and Beulah, House | Portland | Building | 1999 |
| Crumpacker, Maurice, House | Portland | Building | 1992 |
| Cumberland Apartments | Portland | Building | 1990 |
| Darcelle XV | Portland | Building | 2020 |
| Davis Block | Portland | Building | 1999 |
| Day Building | Portland | Building | 1978 |
| Dayton Apartment Building | Portland | Building | 1981 |
| Dean’s Beauty Salon and Barber Shop | Portland | Building | 2022 |
| Deere, John, Plow Company Building | Portland | Building | 1989 |
| Dekum, The | Portland | Building | 1980 |
| Del Rey Apartments | Portland | Building | 1991 |
| Devers, Arthur H., House | Portland | Building | 2026 |
| Dickson, Henry B., House | Portland | Building | 1997 |
| Digman-Zidell House | Portland | Building | 1993 |
| Doernbecher, Frank Silas, House | Portland | Building | 1978 |
| Dooly, Frank E., House | Portland | Building | 1980 |
| Dosch, Henry E., House | Portland | Building | 1978 |
| Dosch, Henry E., Investment Property | Portland | Building | 1987 |
| Douglas Building | Portland | Building | 1989 |
| Druhot, Alice, House | Portland | Building | 1988 |
| Ducey, Elizabeth, House | Portland | Building | 1990 |
| Dupont, Edward D., House | Portland | Building | 1989 |
| Durham-Jacobs House | Portland | Building | 1987 |
| East Portland Branch, Public Library of Multnomah County | Portland | Building | 1987 |
| East Portland Grand Avenue Historic District | Portland | District | 1991 |
| East Portland Grand Avenue Historic District (Boundary Increase) | Portland | District | 2013 |
| Eastman-Shaver House | Portland | Building | 1985 |
| Eastmoreland Historic District | Portland | District | 2022 |
| Edwards, J. G., House | Portland | Building | 1991 |
| Electric Building | Portland | Building | 1989 |
| Elks Temple | Portland | Building | 1978 |
| Elliott House | Portland | Building | 2005 |
| Elm Street Apartments | Portland | Building | 1991 |
| Emerson Apartments | Portland | Building | 2000 |
| Enterprise Planing Mill | Portland | Building | 2006 |
| Envoy Apartment Building | Portland | Building | 1988 |
| Equitable Building | Portland | Building | 1976 |
| Eugene Apartments | Portland | Building | 1994 |
| Eugenia Apartments | Portland | Building | 1989 |
| Failing Office Building | Portland | Building | 2007 |
| Fairmount Hotel | Portland | Building | 2000 |
| Fairview City Jail | Fairview | Building | 2016 |
| Farrer, Franklin W., House | Portland | Building | 1989 |
| Fenton, William D., House | Portland | Building | 1979 |
| First Church of Christ, Scientist | Portland | Building | 1978 |
| First Congregational Church | Portland | Building | 1975 |
| First National Bank | Portland | Building | 1974 |
| First Presbyterian Church of Portland | Portland | Building | 1974 |
| First Regiment Armory Annex | Portland | Building | 2000 |
| First Unitarian Church of Portland | Portland | Building | 1978 |
| Fisher, Raymond and Catherine, House | Portland | Building | 2006 |
| Fisher, Thaddeus, House | Portland | Building | 1989 |
| Flanders, Caroline W. and M. Louise, House | Portland | Building | 1991 |
| Flatiron Building | Portland | Building | 1989 |
| Frances Building and Echo Theater | Portland | Building | 1994 |
| Frank, M. Lloyd, Estate | Portland | District | 1979 |
| Freiwald, Gustav, House | Portland | Building | 1993 |
| Fried-Durkheimer House | Portland | Building | 2019 |
| Frigidaire Building | Portland | Building | 1989 |
| Fruit and Flower Mission | Portland | Building | 1986 |
| Frye, J. O., House | Portland | Building | 1985 |
| Gangware, Roy and Leola, House | Portland | Building | 1990 |
| Gaston, Joseph, House | Portland | Building | 1989 |
| Gaston-Strong House | Portland | Building | 1990 |
| Gatehouse, Portland City Reservoir No. 2 | Portland | Building | 1990 |
| Gedamke, William, House | Gresham | Building | 1989 |
| Genoa Building | Portland | Building | 1997 |
| Gerber, G.G., Building | Portland | Building | 2007 |
| German Baptist Old People’s Home | Portland | Building | 2020 |
| Giesy-Failing House | Portland | Building | 1991 |
| Gilbert Building | Portland | Building | 1980 |
| Gilliland, Lewis T., House | Portland | Building | 1989 |
| Golden West Hotel | Portland | Building | 2022 |
| Goldsmith, Alan and Barbara, House | Portland | Building | 2007 |
| Goldsmith, Bernard and Emma, House | Portland | Building | 2018 |
| Goodman, Joseph, House | Portland | Building | 1993 |
| Gowanlock, Elizabeth B., House | Portland | Building | 1989 |
| Graf, Andreas, House | Corbett | Building | 1980 |
| Graham, Thomas, Building | Portland | Building | 1992 |
| Grand Central Public Market | Portland | Building | 2006 |
| Grand Stable Building and Adjacent Commercial Building | Portland | Building | 1982 |
| Grant, Henry M., House | Portland | Building | 1991 |
| Green, Bertha M. and Marie A., House | Portland | Building | 1992 |
| Green, Harry A. and Ada, House | Portland | Building | 2013 |
| Greenwood, Frederick and Grace, House | Portland | Building | 1991 |
| Gresham Carnegie Library | Gresham | Building | 2000 |
| Groat-Gates House | Portland | Building | 1989 |
| Hahn, Henry, House | Portland | Building | 1993 |
| Hall, Hazel, House | Portland | Building | 1991 |
| Halprin Open Space Sequence | Portland | District | 2013 |
| Hamilton Building | Portland | Building | 1977 |
| Hamilton, Alexander B. and Anna Balch, House | Portland | Building | 1993 |
| Hamlin, Charles Hunter, House | Gresham | Building | 2016 |
| Hancock Street Fourplex | Portland | Building | 1993 |
| Hanthorn Apartments | Portland | Building | 2014 |
| Harlow Block | Portland | Building | 1980 |
| Harlow, Fred, House | Troutdale | Building | 1984 |
| Harmon-Neils House | Portland | Building | 1984 |
| Harris, Dr. Homer H., House | Portland | Building | 2017 |
| Harrison Court Apartments | Portland | Building | 2005 |
| Haseltine, William A., House | Portland | Building | 1991 |
| Hawthorne Bridge | Portland | Structure | 2012 |
| Hawthorne, Rachel Louise, House | Portland | Building | 1989 |
| Haycox, Ernest, Estate | Portland | Building | 1994 |
| Heathman Hotel | Portland | Building | 2014 |
| Heintz, Albert, Oscar, and Linda, House | Portland | Building | 1990 |
| Hendershott, Dr. Harry M., House | Portland | Building | 1991 |
| Henry, C. K., Building | Portland | Building | 1982 |
| Herschell-Spillman Noah's Ark Carousel | Portland | Structure | 1987 |
| Heusner, George F., House | Portland | Building | 1978 |
| Hexter, Levi, House | Portland | Building | 1980 |
| Hiberian Hall | Portland | Building | 2005 |
| Hickey, James, House | Portland | Building | 1990 |
| Hill Hotel | Portland | Building | 1995 |
| Hines, Pierre Rossiter and Charlotte, House | Portland | Building | 2002 |
| Holden, William B., House | Portland | Building | 1999 |
| Holden, William B., House (Boundary Decrease) | Portland | Site | 2016 |
| Hollywood Theatre | Portland | Building | 1983 |
| Holman, Capt. Herbert, House | Portland | Building | 1991 |
| Holman, Rufus C., House | Portland | Building | 1991 |
| Holt-Saylor-Liberto House | Portland | Building | 1978 |
| Honeyman Hardware Company Building | Portland | Building | 1989 |
| Honeyman, David T. and Nan Wood, House | Portland | Building | 1987 |
| Honeyman, John S., House | Portland | Building | 1985 |
| Honeyman, Walter B. & Myrtle E., House | Portland | Building | 2014 |
| Hotel Alder | Portland | Building | 2004 |
| Hotel Alma (Additional Documentation) | Portland | Building | 2009 |
| Hotel Ramapo | Portland | Building | 1985 |
| Hryszko Brothers Building | Portland | Building | 1998 |
| Hughes, Dr. Herbert H., House | Gresham | Building | 2001 |
| Hyland, Olive and Ellsworth, Apartments | Portland | Building | 1980 |
| Imperial Garage | Portland | Building | 1993 |
| Imperial Hotel | Portland | Building | 1985 |
| Inman, Clarissa McKeyes, House | Portland | Building | 1990 |
| International Harvester Company Warehouse | Portland | Building | 1989 |
| Irving Street Bowman Apartments | Portland | Building | 1990 |
| Irvington Bowman Apartments | Portland | Building | 2002 |
| Irvington Historic District (Additional Documentation) | Portland | District | 2010 |
| Irvington Tennis Club | Portland | Building | 1990 |
| Italian Gardeners and Ranchers Association Market Building | Portland | Building | 1989 |
| J. K. Gill Company Building | Portland | Building | 2021 |
| Jacobberger, Josef, House | Portland | Building | 1990 |
| Jacobberger, Joseph, Country House | Portland | Building | 2011 |
| Jacobs-Wilson House | Portland | Building | 1981 |
| James, W. Leland, House | Portland | Building | 2016 |
| Jantzen Knitting Mills Company Building | Portland | Building | 1991 |
| Jeanne Manor Apartment Building | Portland | Building | 1998 |
| Jefferson Substation | Portland | Building | 1980 |
| Jefferson Substation | Portland | Building | 1980 |
| Jeffrey, Oliver and Margaret, House | Portland | Building | 2005 |
| Jensen Investment Company Building | Portland | Building | 1999 |
| Jeppesen, Peter, House | Portland | Building | 1987 |
| Jewish Shelter Home | Portland | Building | 1984 |
| Johnson, C. D., House | Portland | Building | 1991 |
| Johnson, Charles E., Building | Portland | Building | 1999 |
| Jones Cash Store | Portland | Building | 2005 |
| Jones, Clarence H., House | Portland | Building | 1989 |
| Jones, Dr. Noble Wiley, House | Portland | Building | 1988 |
| Jorgensen, Victor H. and Marta, House | Portland | Building | 2008 |
| Journal Building | Portland | Building | 1996 |
| Juniper House | Portland | Building | 2025 |
| Kamm, Jacob, House | Portland | Building | 1974 |
| Keating, John A. and Hattie Mae, House | Portland | Building | 2020 |
| Keck, H.C., House-Mt. Olivet Parsonage | Portland | Building | 2002 |
| Keller, Edward H. and Bertha R., House | Portland | Building | 2009 |
| Kendall, Joseph, House | Portland | Building | 1979 |
| Kennedy, John D., Elementary School | Portland | Building | 1995 |
| Kenton Commercial Historic District | Portland | District | 2001 |
| Kenton Hotel | Portland | Building | 1990 |
| Kern, Grace, House | Portland | Building | 2008 |
| Kerr, Albertina, Nursery | Portland | Building | 1979 |
| Kiernan House | Portland | Building | 2019 |
| King's Hill Historic District | Portland | District | 1991 |
| King, Samuel W., House | Portland | Building | 1987 |
| Kingsley, Edward D., House | Portland | Building | 1990 |
| Kistner, Dr. Frank B., House | Portland | Building | 1987 |
| Kline, Moses, and Ida, House | Portland | Building | 2004 |
| Knight, F. M., Building | Portland | Building | 1989 |
| Kress Building | Portland | Building | 1996 |
| Krouse, Nettie, Fourplex | Portland | Building | 1989 |
| Kuehle, Henry, Investment Property | Portland | Building | 1989 |
| Ladd Carriage House | Portland | Building | 2010 |
| Ladd's Addition Historic District | Portland | District | 1988 |
| Landenberger, C. A., House | Portland | Building | 1988 |
| Lane-Miles Standish Company Printing Plant | Portland | Building | 2007 |
| Lauer Apartment Building | Portland | Building | 1992 |
| Laurelhurst Historic District (Additional Documentation) | Portland | District | 2019 |
| Laurelhurst Manor Apartments | Portland | Building | 1996 |
| Laurelhurst Park | Portland | Site | 2001 |
| Lent, George P., Investment Properties | Portland | Building | 1989 |
| Leutgert, Henry C., Building | Portland | Building | 1999 |
| Lewis, C. Hunt and Gertrude McClintock, House | Portland | Building | 2015 |
| Lewis, William H., Model House | Portland | Building | 1990 |
| Lewthwaite, Alexander and Cornelia, House | Portland | Building | 2006 |
| Liebes, H. and Company, Building | Portland | Building | 1996 |
| Lindquist Apartment House | Portland | Building | 1993 |
| Linnea Hall | Portland | Building | 1981 |
| Lipman-Wolfe and Company Building | Portland | Building | 1988 |
| Livingston, C.J., House | Portland | Building | 2012 |
| Loeb, Nathan, House | Portland | Building | 1978 |
| Lombard Automobile Buildings | Portland | Building | 2006 |
| Lone Fir Cemetery | Portland | District | 2007 |
| Long, A. G., House | Portland | Building | 1993 |
| Louise Home Hospital and Residence Hall | Gresham | Building | 1987 |
| Lumbermen's Building | Portland | Building | 1996 |
| Lynch, Matthew J. and Florence, House and Garden | Portland | Building | 2002 |
| Lytle, Robert F., House | Portland | Building | 1983 |
| MacMaster, William and Annie, House | Portland | Building | 1989 |
| Mackenzie, Dr. K. A. J. and Cora, House | Portland | Building | 1996 |
| Mackenzie, W. R., House | Portland | Building | 1978 |
| Maegly, A. H., House | Portland | Building | 1981 |
| Malarkey, Daniel J., House | Portland | Building | 1993 |
| Malarkey, Herbert and Elizabeth, House | Portland | Building | 2005 |
| Mallory Avenue Christian Church | Portland | Building | 2021 |
| Mallory Hotel | Portland | Building | 2006 |
| Mangels, William F., Four-Row Carousel | Portland | Structure | 1987 |
| Mann, Anna Lewis, Old People's Home | Portland | Building | 1992 |
| Markle-Pittock House | Portland | Building | 1985 |
| Marks, Morris, House | Portland | Building | 1975 |
| Marquam Manor | Portland | Building | 1993 |
| Marshall, Dr. John D., Building (Additional Documentation) | Portland | Building | 2023 |
| Marshall-Wells Company Warehouse No. 2 | Portland | Building | 1989 |
| Martin, George W. and Hannah,-John B. and Minnie Hosford House | Portland | Building | 2003 |
| McAvinney Fourplex | Portland | Building | 2006 |
| McDonald, Daniel C. and Katie A., House | Portland | Building | 2019 |
| McDougall, Alexander D., House | Portland | Building | 1999 |
| McDougall, Natt and Christena, House | Portland | Building | 1999 |
| McDougall-Campbell House | Portland | Building | 2005 |
| McGraw, Donald and Ruth, House | Portland | Building | 2001 |
| Medical Arts Building | Portland | Building | 1986 |
| Meier & Frank Warehouse | Portland | Building | 2000 |
| Meier and Frank Building | Portland | Building | 1982 |
| Meier and Frank Delivery Depot | Portland | Building | 2001 |
| Memorial Coliseum | Portland | Building | 2009 |
| Menefee, L. B., House | Portland | Building | 1989 |
| Miller, Claude Hayes, House | Portland | Building | 1999 |
| Miller, Elmer and Linnie, House | Portland | Building | 2020 |
| Miller, Fred O., House | Portland | Building | 2006 |
| Miller, Henry B., House | Portland | Building | 1989 |
| Mills, Lewis H., House | Portland | Building | 1982 |
| Mizpah Presbytarian Church of East Portland | Portland | Building | 1983 |
| Mock, John, House | Portland | Building | 1980 |
| Mohawk Building | Portland | Building | 1996 |
| Mohle, Wilhelmina, House | Portland | Building | 1989 |
| Monastery of the Precious Blood | Portland | Building | 1985 |
| Montgomery Ward & Company | Portland | Building | 1985 |
| Montgomery Ward & Company (Boundary Decrease II) | Portland | Building | 2021 |
| Morgan Building | Portland | Building | 1996 |
| Morgan, Melinda E., House | Portland | Building | 1990 |
| Morrison Bridge | Portland | Structure | 2012 |
| Mount Hood Masonic Temple | Portland | Building | 2008 |
| Mount Tabor Park | Portland | District | 2004 |
| Mount Tabor Park Reservoirs Historic District | Portland | District | 2004 |
| Mt. Olivet Baptist Church | Portland | Building | 2022 |
| Multnomah County Courthouse | Portland | Building | 1979 |
| Multnomah County Poor Farm | Troutdale | Building | 1990 |
| Multnomah Falls Lodge and Footpath | Bridal Veil | Building | 1981 |
| Multnomah Hotel | Portland | Building | 1985 |
| Multnomah School | Portland | Building | 2020 |
| Munsell, William O., House | Portland | Building | 1989 |
| Murphy, Paul C., House | Portland | Building | 1991 |
| Murphy, Paul F., House | Portland | Building | 1991 |
| Neighborhood House | Portland | Building | 1979 |
| Neighbors of Woodcraft Building | Portland | Building | 1996 |
| Nelson, Otto W. and Ida L., House | Portland | Building | 2001 |
| Neuberger, Isaac, House | Portland | Building | 1990 |
| New Fliedner Building | Portland | Building | 2020 |
| New Heathman Hotel | Portland | Building | 1984 |
| New Houston Hotel | Portland | Building | 1991 |
| New Imperial Hotel | Portland | Building | 2003 |
| New Logus Block | Portland | Building | 1980 |
| Nicholas-Lang House | Portland | Building | 1979 |
| Nichols, Dr. A. S., House | Portland | Building | 1992 |
| Nichols, Dr. Herbert S., House | Portland | Building | 1990 |
| Nicolai, Harry T., House | Portland | Building | 1990 |
| Nicolai-Cake-Olson House | Portland | Building | 2001 |
| Normandale Field | Portland | Site | 2024 |
| North Bank Depot Buildings | Portland | Building | 1996 |
| Northwest Fence and Wire Works | Portland | Building | 2005 |
| Northwestern Electric Company-Alberta Substation | Portland | Building | 1998 |
| Northwestern National Bank Building | Portland | Building | 1996 |
| O'Donnell, E. J., House | Portland | Building | 1994 |
| O.K. Jeffery Aircraft Factory | Portland | Building | 2021 |
| Odd Fellows Building | Portland | Building | 1980 |
| Olds, Wortman and King Department Store | Portland | Building | 1991 |
| Olsen and Weygandt Building | Portland | Building | 1993 |
| Olson, August, House | Portland | Building | 1996 |
| Olson, Charles and Fae, House | Gresham | Building | 2007 |
| Olympic Apartment Building | Portland | Building | 1997 |
| Olympic Cereal Mill | Portland | Building | 1989 |
| Oregon Cracker Company Building | Portland | Building | 1979 |
| Oregon Portland Cement Building | Portland | Building | 1989 |
| Oregon State Bank Building | Portland | Building | 2000 |
| Oriental Apartments | Portland | Building | 1992 |
| Ormonde Apartment Building | Portland | Building | 1987 |
| Osborn Hotel | Portland | Building | 1980 |
| Otis Elevator Company Building | Portland | Building | 1988 |
| Ott, David and Marianne, House | Gresham | Building | 2015 |
| PORTLAND (Steam Tug) | Portland | Site | 1997 |
| PT-658 (motor torpedo boat) | Portland | Object | 2012 |
| Pacific Building | Portland | Building | 1992 |
| Pacific Coast Biscuit Company Building | Portland | Building | 1998 |
| Pacific Hardware and Steel Company Warehouse | Portland | Building | 2008 |
| Packard Service Building | Portland | Building | 1994 |
| Page and Son Apartments | Portland | Building | 1989 |
| Palestine Lodge | Portland | Building | 2005 |
| Pallay Apartments | Portland | Building | 2021 |
| Pallay Building | Portland | Building | 1985 |
| Palmer, John, House | Portland | Building | 1978 |
| Paramount Theatre | Portland | Building | 1976 |
| Parelius, Martin, Fourplex | Portland | Building | 1989 |
| Parker, J. J. and Hazel, House | Portland | Building | 2023 |
| Parkview Apartments | Portland | Building | 1992 |
| Paterson, Thomas M. and Alla M., House | Portland | Building | 1998 |
| Patton Home | Portland | Building | 2021 |
| Peacock Lane Historic District | Portland | District | 2017 |
| Pearson Mortuary | Portland | Building | 2007 |
| Peck Bros. and Bartle Tire Service Company Building | Portland | Building | 2003 |
| Pepper, Jim, House | Portland | Building | 2023 |
| Peterson, J.H., Machine Shop | Portland | Building | 2002 |
| Pfunder, Louis, House | Portland | Building | 2005 |
| Phoenix Pharmacy | Portland | Building | 2022 |
| Piggott, Charles, House | Portland | Building | 1979 |
| Pioneer Courthouse NHL | Portland | Building | 1973 |
| Piper, Charles, Building | Portland | Building | 1989 |
| Pipes Family House | Portland | Building | 2005 |
| Pipes, George, House | Portland | Building | 1991 |
| Pipes, Martin Luther, House | Portland | Building | 1987 |
| Pittock Block | Portland | Building | 1987 |
| Pittock Mansion | Portland | Building | 1974 |
| Polhemus, James S., House | Portland | Building | 1989 |
| Poole, Otho, House | Portland | Building | 1991 |
| Portland Art Museum | Portland | Building | 1974 |
| Portland Buddhist Church | Portland | Building | 2004 |
| Portland City Hall | Portland | Building | 1974 |
| Portland Cordage Company Building | Portland | Building | 1993 |
| Portland Fire Station No. 17 | Portland | Building | 1987 |
| Portland Fire Station No. 23 | Portland | Building | 1989 |
| Portland Fire Station No. 7 | Portland | Building | 1989 |
| Portland Garden Club | Portland | Building | 2005 |
| Portland New Chinatown-Japantown Historic District | Portland | District | 1989 |
| Portland Police Block | Portland | Building | 1985 |
| Portland Police Block (Boundary Decrease) | Portland | Building | 2020 |
| Portland Public Service Building | Portland | Building | 2011 |
| Portland Railway, Light and Power Sellwood Division Carbarn Office and Clubhouse | Portland | Building | 2002 |
| Portland Sanitarium Nurses' Quarters | Portland | Building | 2017 |
| Portland Skidmore/Old Town Historic District NHL | Portland | District | 1975 |
| Portland Thirteenth Avenue Historic District | Portland | District | 1987 |
| Portland Van and Storage Building | Portland | Building | 1996 |
| Portland Yamhill Historic District | Portland | District | 1976 |
| Portland Zoo Railway Historic District | Portland | District | 2020 |
| Posey, John V. G., House | Portland | Building | 1990 |
| Postal Building | Portland | Building | 1978 |
| Postal Employees Credit Union | Portland | Building | 2020 |
| Poulsen, Johan, House | Portland | Building | 1977 |
| Povey, John E. G., House | Portland | Building | 1998 |
| Powers, Ira F., Building | Portland | Building | 1985 |
| Powers, Ira F., Warehouse and Factory | Portland | Building | 2011 |
| Prager-Lombard House | Portland | Building | 1991 |
| Price, O. L., House | Portland | Building | 1988 |
| Prince, Thomas, House | Portland | Building | 1986 |
| Public Service Building and Garage | Portland | Building | 1996 |
| Raabe, Capt. George, House | Portland | Building | 1989 |
| Rae Selling Berry Garden and House | Portland | Site | 2002 |
| Railway Exchange Building and Huber's Restaurant | Portland | Building | 1979 |
| Raymond, Jessie M., House | Portland | Building | 1989 |
| Reed, Rosamond Coursen and Walter R., House | Portland | Building | 1990 |
| Reed, Samuel G., House | Portland | Building | 1990 |
| Reed-Wells House | Portland | Building | 2004 |
| Regent Apartments | Portland | Building | 1991 |
| Reinhart, Jacques and Amelia, House | Portland | Building | 1985 |
| Rex Arms Apartments | Portland | Building | 2024 |
| Ricen, Dr. Leo, House | Portland | Building | 1992 |
| Rinehart Building | Portland | Building | 2013 |
| Rockey, Dr. A. E. and Phila Jane, House | Portland | Building | 1985 |
| Rocky Butte Scenic Drive Historic District | Portland | District | 1991 |
| Roome-Stearns House | Portland | Building | 1992 |
| Roosevelt Hotel | Portland | Building | 1998 |
| Rose City Electric Automobile Garage | Portland | Building | 1996 |
| Rose City Golf Clubhouse | Portland | Building | 2012 |
| Rosenberg, Dr. J. J., House | Portland | Building | 1990 |
| Rosenfeld, Dr. James, House | Portland | Building | 1989 |
| Ruby, Alfred C. and Nettie, House | Portland | Building | 2006 |
| Rutherford House | Portland | Building | 2015 |
| Salerno Apartments | Portland | Building | 1994 |
| Salmon, W. S., House | Portland | Building | 1994 |
| San Farlando Apartments | Portland | Building | 1997 |
| Santa Barbara Apartments | Portland | Building | 1989 |
| Schnabel, Charles J. and Elsa, House | Portland | Building | 1987 |
| Scott, Leslie M., House | Portland | Building | 1989 |
| Seitz, Maurice, House | Portland | Building | 1990 |
| Selling Building | Portland | Building | 1991 |
| Sellwood Branch YMCA | Portland | Building | 2006 |
| Senate Court Apartments | Portland | Building | 1997 |
| Sengstake Building | Portland | Building | 2012 |
| Sensel, Henry, Building | Portland | Building | 1989 |
| Seufert House | Portland | Building | 2006 |
| Seven Hundred Five Davis Street Apartments | Portland | Building | 1980 |
| Seward Hotel | Portland | Building | 1985 |
| Sheffield, John and Sarah, House | Portland | Building | 1991 |
| Sherlock Building | Portland | Building | 1977 |
| Shogren, Fred A., May, and Ann, House | Portland | Building | 1989 |
| Sigglin, Charles O., Flats | Portland | Building | 2019 |
| Smith, Alfred H. and Mary E., House | Portland | Building | 2007 |
| Smith, Blaine, House | Portland | Building | 1991 |
| Smith, Mary J. G., House | Portland | Building | 1981 |
| Smith, Milton W., House | Portland | Building | 1980 |
| Smith, Percy A., House | Portland | Building | 1991 |
| Smith, Stanley C. E., House | Portland | Building | 1991 |
| Smith, Walter V., House | Portland | Building | 1993 |
| Smithson and McKay Brothers Blocks | Portland | Building | 1979 |
| South Park Blocks | Portland | District | 2022 |
| South Portland Historic District | Portland | District | 1998 |
| Sovereign Hotel | Portland | Building | 1981 |
| Spalding Building | Portland | Building | 1982 |
| Spencer, Arthur Champlin, and Margaret Fenton Spencer House | Portland | Building | 1999 |
| Spies-Robinson House | Portland | Building | 1997 |
| Spokane, Portland and Seattle Railroad Warehouse | Portland | Building | 1996 |
| Spokane, Portland and Seattle Railway Steam Locomotive | Portland | Structure | 2006 |
| Sprague-Marshall-Bowie House | Portland | Building | 1980 |
| Springdale School | Corbett | Building | 2011 |
| Sprouse, John A., Jr., House | Portland | Building | 1991 |
| St. James Lutheran Church | Portland | Building | 1975 |
| St. John's Episcopal Church | Portland | Building | 1974 |
| St. Johns Signal Tower Gas Station | Portland | Building | 2003 |
| St. Patrick's Roman Catholic Church and Rectory | Portland | Building | 1974 |
| Stephens, James B., House | Portland | Building | 1997 |
| Stettler, Frank C., House | Portland | Building | 1990 |
| Stevens Building | Portland | Building | 1998 |
| Stokes, Francis Marion, Fourplex | Portland | Building | 1996 |
| Stratton-Cornelius House | Portland | Building | 1978 |
| Strong, Alice Henderson, House | Portland | Building | 1990 |
| Sunken Village Archeological Site (35MU4) NHL | Portland | Site | 1989 |
| Swedish Evangelical Mission Covenant Church | Portland | Building | 1982 |
| Sweeney, Straub and Dimm Printing Plant | Portland | Building | 2004 |
| Swetland Building | Portland | Building | 2007 |
| Swigert, Ernest G., House | Portland | Building | 1991 |
| Tanner, Albert H., House | Portland | Building | 1983 |
| Tannler-Armstrong House | Portland | Building | 2002 |
| Tarpley, Louis and Bessie, House | Portland | Building | 2007 |
| Taylor, Fred E., House | Portland | Building | 1990 |
| Taylor, Peter, House and Haehlen, Gotlieb, House | Portland | Building | 1984 |
| Telegram Building | Portland | Building | 1994 |
| Temple Beth Israel | Portland | Building | 1979 |
| Terminal Sales Building | Portland | Building | 1991 |
| Terwilliger Parkway | Portland | District | 2021 |
| Thompson Court Apartments | Portland | Building | 1997 |
| Tichner, Abraham, House | Portland | Building | 2000 |
| Torgler, Frederick, Building | Portland | Building | 1999 |
| Town Club, The | Portland | Building | 1987 |
| Trenkmann Houses | Portland | Building | 1978 |
| Trevett-Nunn House | Portland | Building | 1980 |
| Trinity Place Apartments | Portland | Building | 1990 |
| Troutdale Methodist Episcopal Church | Troutdale | Building | 1993 |
| Troy Laundry Building | Portland | Building | 1989 |
| Tudor Arms Apartments | Portland | Building | 1994 |
| Tunturi, Fred, House | Portland | Building | 1996 |
| Turner, Frederick, Fourplex | Portland | Building | 1992 |
| U.S. Courthouse | Portland | Building | 1979 |
| U.S. Customhouse | Portland | Building | 1974 |
| U.S. Post Office | Portland | Building | 1979 |
| US National Bank Building | Portland | Building | 1986 |
| US Post Office-St. John's Station | Portland | Building | 1985 |
| USS BLUEBACK (submarine) | Portland | Structure | 2008 |
| USS LCI-713 (Landing Craft) | Portland | Structure | 2007 |
| Union Station | Portland | Building | 1975 |
| University Club | Portland | Building | 1979 |
| Van Vleet, Lewis and Elizabeth, House | Portland | Building | 2001 |
| Vancouver Avenue First Baptist Church | Portland | Building | 2016 |
| Vetter, Herman, House | Portland | Building | 1992 |
| View Point Inn | Corbett | Building | 1985 |
| Villa St. Clara Apartments | Portland | Building | 2000 |
| Villa St. Rose | Portland | Building | 2000 |
| Visitors Information Center | Portland | Building | 2010 |
| Vista Avenue Viaduct | Portland | Structure | 1984 |
| Vista House | Crown Point | Building | 1974 |
| Waldo Block | Portland | Building | 1982 |
| Wallace, John M., Fourplex | Portland | Building | 1989 |
| Warren, Frank M., House | Portland | Building | 1989 |
| Washington High School | Portland | Building | 2015 |
| Washington Park Reservoirs Historic District | Portland | District | 2004 |
| Watzek, Aubrey R., House NHL | Portland | Building | 1974 |
| Webb, Alfred, Investment Properties | Portland | Building | 1989 |
| Weinhard Brewery Complex | Portland | Building | 2000 |
| Weist Apartments | Portland | Building | 1990 |
| Wells Fargo Building | Portland | Building | 1986 |
| Wells, William Bittle, House | Portland | Building | 1989 |
| Wells-Guthrie House | Portland | Building | 1990 |
| West Coast Woods Model Home | Portland | Building | 2002 |
| West Hall | Portland | Building | 1977 |
| West's Block | Portland | Building | 1980 |
| West, Nathaniel, Buildings | Portland | Building | 1984 |
| Wheeldon Annex | Portland | Building | 2020 |
| Wheeldon Apartment Building | Portland | Building | 1990 |
| Wheeler, Cora Bryant, House | Portland | Building | 1990 |
| Wheeler, James E., House | Portland | Building | 1990 |
| Whidden-Kerr House and Garden | Portland | Building | 1988 |
| White, Catherine, House | Portland | Building | 1983 |
| White, Isam, House | Portland | Building | 1991 |
| Whitney and Gray Building and Jake's Famous Crawfish Restaurant | Portland | Building | 1983 |
| Wickersham Apartments | Portland | Building | 1983 |
| Wilcox Building | Portland | Building | 1989 |
| Wilcox, Theodore B., Country Estate | Portland | Building | 1993 |
| Williams Avenue YWCA | Portland | Building | 2020 |
| Williams, George H., Townhouses | Portland | Building | 1984 |
| Wilson-Chambers Mortuary | Portland | Building | 2007 |
| Wilson-South House | Portland | Building | 1999 |
| Woerner, Louis and Elizabeth, House | Portland | Building | 2005 |
| Woodlark Building | Portland | Building | 2014 |
| Wortman, H. C., House | Portland | Building | 1988 |
| Yale Union Laundry Building | Portland | Building | 2007 |
| Yeon Building | Portland | Building | 1994 |
| Yeon, John, Speculative House | Portland | Building | 2007 |
| Young, John Eben, House | Portland | Building | 1988 |
| Zimmerman, Jacob, House | Gresham | Building | 1986 |
| Zimmerman, Walter S., House | Portland | Building | 1991 |
| Zimmerman-Rudeen House | Portland | Building | 1991 |
| Zion Lutheran Church | Portland | Building | 1996 |