| 12th Avenue South Bridge | Seattle | Structure | 1982 |
| 1411 Fourth Avenue Building | Seattle | Building | 1991 |
| 14th Avenue South Bridge | Seattle | Structure | 1982 |
| 1600 East John Street Apartments | Seattle | Building | 2013 |
| 1926 Model Brick Home | Seattle | Building | 2016 |
| ADVENTURESS NHL | Seattle | Structure | 1989 |
| ARTHUR FOSS (tugboat) NHL | Kirkland | Structure | 1989 |
| Adair, William and Estella, Farm | Carnation | Building | 2002 |
| Admiral's House, 13th Naval District | Seattle | Building | 2013 |
| Agen Warehouse | Seattle | Building | 1998 |
| Alaska Trade Building | Seattle | Building | 1971 |
| Allen, Horatio and Laura, Farm | Duvall | Building | 2002 |
| Allen, John B., School | Seattle | Building | 2011 |
| Arboretum Sewer Trestle | Seattle | Structure | 1982 |
| Arctic Building | Seattle | Building | 1978 |
| Arreguin, Alfredo & Susan Lytle, House and Studio | Seattle | Building | 2022 |
| Assay Office | Seattle | Building | 1972 |
| Auburn Post Office | Aburn | Building | 2000 |
| Auburn Public Library | Auburn | Building | 1982 |
| Aurora Avenue Bridge | Seattle | Structure | 1982 |
| Ballard Avenue Historic District | Seattle | District | 1976 |
| Ballard Bridge | Seattle | Structure | 1982 |
| Ballard Carnegie Library | Seattle | Building | 1979 |
| Ballard-Howe House | Seattle | Building | 1979 |
| Ballast Island | Seattle | Site | 2021 |
| Ballinger, Richard A., House | Seattle | Building | 1976 |
| Baring Bridge | Baring | Structure | 2019 |
| Barksdale, Julian and Marajane, House | Seattle | Building | 2013 |
| Barnes Building | Seattle | Building | 1975 |
| Bay View Brewery | Seattle | Building | 2013 |
| Beacon Hill School | Seattle | Building | 2019 |
| Bell Apartments | Seattle | Building | 1974 |
| Black Diamond Cemetery | Black Diamond | Site | 2000 |
| Bloch, William and Minna, House | Seattle | Building | 2025 |
| Blomeen, Oscar, House | Auburn | Building | 1991 |
| Boeing, William E., House | Highlands | Building | 1988 |
| Bon Marche Department Store | Seattle | Building | 2016 |
| Bothell Pioneer Cemetery | Bothell | Site | 1996 |
| Bowles, Jesse C., House | Seattle | Building | 1986 |
| Brandes House | Issaquah | Building | 1994 |
| Building No. 105, Boeing Airplane Company | Seattle | Building | 1971 |
| Butterworth Building | Seattle | Building | 1971 |
| Calhoun Hotel | Seattle | Building | 2013 |
| Cambridge Apartments | Seattle | Building | 2016 |
| Camlin Hotel | Seattle | Building | 1999 |
| Camp North Bend | North Bend | District | 1993 |
| Century 21-Washington State Coliseum | Seattle | Building | 2018 |
| Chase, Dr. Reuben, House | Bothell | Building | 1990 |
| Chelsea Family Hotel | Seattle | Building | 1978 |
| Chiarelli, James and Pat, House | Seattle | Building | 2013 |
| Chief Sealth High School | Seattle | Building | 2022 |
| Chinese Baptist Church | Seattle | Building | 1986 |
| Chittenden Locks and Lake Washington Ship Canal | Seattle | District | 1978 |
| Church of the Blessed Sacrament, Priory, and School | Seattle | Building | 1984 |
| Clise, James W., House | Redmond | Building | 1973 |
| Cobb Building | Seattle | Building | 1984 |
| Coliseum Theater | Seattle | Building | 1975 |
| Colman Automotive Building | Seattle | Building | 2013 |
| Colman Building | Seattle | Building | 1972 |
| Colman Park & Dose Terrace Stairs | Seattle | Site | 2020 |
| Colonial Hotel | Seattle | Building | 1982 |
| Colonnade Hotel | Seattle | Building | 2017 |
| Columbia City Historic District | Seattle | District | 1980 |
| Colvos Store | Vashon | Building | 2000 |
| Continental Hotel | Seattle | Building | 2024 |
| Cooper, Frank B., Elementary School | Seattle | Building | 2003 |
| Cornish School | Seattle | Building | 1977 |
| Covenant Beach Bible Camp | Des Moines | District | 2006 |
| Covington Electrical Substation, Bonneville Power Administration | Covington | District | 2018 |
| Cowen Park Bridge | Seattle | Structure | 1982 |
| DUWAMISH NHL | Seattle | Structure | 1989 |
| Daughters of the American Revolution-Rainier Chapter House | Seattle | Building | 2019 |
| De La Mar Apartments | Seattle | Building | 1980 |
| Dearborn, Henry H., House | Seattle | Building | 1998 |
| Dockton Hotel | Dockton | Building | 1983 |
| Dose, Charles P. and Ida, House | Seattle | Building | 2013 |
| Dougherty, John and Kate, Farmstead | Duvall | Building | 2005 |
| Dr. José Rizal Park | Seattle | Site | 2025 |
| Dr. Trueblood House | Kirkland | Building | 1982 |
| Dunn Gardens | Seattle | Site | 1994 |
| Duwamish Number 1 Site | Seattle | Site | 1977 |
| Eagles Auditorium Building | Seattle | Building | 1983 |
| Eddy, James G., House and Grounds | Medina | Building | 1982 |
| Eddy, James G., House and Grounds (Boundary Increase) | Medina | Structure | 1986 |
| El Rio Apartment Hotel | Seattle | Building | 1999 |
| Eng, Jim and Betty, House | Seattle | Building | 2019 |
| Entwistles, David and Martha, House | Carnation | Building | 1999 |
| F/V Tordenskjold (West Coast Halibut Schooner) | Seattle | Structure | 2023 |
| Falls City Masonic Hall | Fall City | Building | 2004 |
| Faust-Ryan House | Bothell | Building | 1994 |
| Federal Office Building | Seattle | Building | 1979 |
| Federal Office Building | Seattle | Building | 2024 |
| Federal Reserve Bank of San Francisco, Seattle Branch | Seattle | Building | 2013 |
| Ferry, Pierre P., House | Seattle | Building | 1979 |
| Fir Lodge | Seattle | Building | 2021 |
| Fire Station No. 18 | Seattle | Building | 1973 |
| Fire Station No. 23 | Seattle | Building | 1971 |
| Fire Station No. 25 | Seattle | Building | 1972 |
| First Methodist Episcopal Church | Seattle | Building | 2011 |
| First Methodist Protestant Church of Seattle | Seattle | Building | 1993 |
| Ford Motor Company Assembly Plant | Seattle | Building | 2013 |
| Fort Lawton | Seattle | District | 1978 |
| Fourth Church of Christ, Scientist | Seattle | Building | 2013 |
| Freeway Park | Seattle | Site | 2019 |
| Fremont Bridge | Seattle | Structure | 1982 |
| Fremont Building | Seattle | Building | 1992 |
| Frink Park | Seattle | Site | 2019 |
| Gaffney's Lake Wilderness Lodge | Maple Valley | Building | 2003 |
| Galland, Caroline Kline, House | Seattle | Building | 1980 |
| Gas Works Park | Seattle | District | 2013 |
| Globe Building, Beebe Building and Hotel Cecil | Seattle | Building | 1982 |
| Graham, J. S., Store | Seattle | Building | 1989 |
| Grand Pacific Hotel | Seattle | Building | 1982 |
| Great Northern Depot | Skykomish | Building | 1997 |
| Guiry and Schillestad Building | Seattle | Building | 1985 |
| Harvard-Belmont District | Seattle | District | 1982 |
| Hawthorne Square | Seattle | Building | 2012 |
| Highland Apartments | Seattle | Building | 2018 |
| Hill, Samuel, House | Seattle | Building | 1976 |
| Hjertoos, Andrew and Bergette, Farm | Carnation | Building | 2002 |
| Hoge Building | Seattle | Building | 1983 |
| Hollywood Farm | Woodinville | Building | 1978 |
| Holyoke Building | Seattle | Building | 1976 |
| Home of the Good Shepherd | Seattle | Building | 1978 |
| Hotel Sorrento | Seattle | Building | 2021 |
| Hull Building | Seattle | Building | 1983 |
| Hyde, Samuel, House | Seattle | Building | 1982 |
| Immanuel Lutheran Church | Seattle | Building | 1982 |
| Independent Order of Odd Fellows (IOOF) Hall No. 148 | Carnation | Building | 1999 |
| Interlake Public School | Seattle | Building | 1983 |
| Iron Pergola | Seattle | Structure | 1971 |
| Issaquah Depot | Issaquah | Building | 1990 |
| Issaquah Sportsmen's Club | Issaquah | Building | 1998 |
| JOHN N. COBB (fisheries research vessel) | Seattle | Structure | 2009 |
| Jovita Land Company Model Home-Corbett House | Federal Way | Building | 2004 |
| Keewaydin Clubhouse | Mercer Island | Building | 2005 |
| King Street Station | Seattle | Building | 1973 |
| Kirk, Lilly, House | Bothel | Building | 1995 |
| Kirk, Peter, Building | Kirkland | Building | 1973 |
| Kirkland Woman's Club | Kirkland | Building | 1990 |
| Knights of Columbus Hall - Council No. 676 | Seattle | Building | 2019 |
| Kraus, Joseph, House | Seattle | Building | 1982 |
| Lake Washington Boulevard | Seattle | District | 2017 |
| Lakeview School | Mercer Island | Building | 1988 |
| Leamington Hotel and Apartments | Seattle | Building | 1994 |
| Leary, Eliza Ferry, House | Seattle | Building | 1972 |
| Lester Depot | Lester | Building | 1987 |
| Lewis, Hannah, House | Seattle | Building | 2018 |
| Liggett Building | Seattle | Building | 2011 |
| Loomis House | Kirkland | Building | 1982 |
| Lyon Building | Seattle | Building | 1995 |
| M. V. VASHON | Seattle | Structure | 1982 |
| MV WESTWARD (Wooden Motor Vessel) | Seattle | Structure | 2007 |
| Magnolia Public Library | Seattle | Building | 2015 |
| Maloney's General Store | Skykomish | Building | 1997 |
| Marsh, Louis S., House | Kirkland | Building | 1989 |
| Marymoor Prehistoric Indian Site | Redmond | Site | 1970 |
| Masonic Lodge Building | Kirkland | Building | 1982 |
| Masonic Temple-Auburn | Auburn | Building | 2015 |
| Matzen, George and Irene, House | Seattle | Building | 2019 |
| McGrath Cafe and Hotel-The McGrath | North Bend | Building | 2002 |
| Medical Dental Building | Seattle | Building | 2006 |
| Merrill, R. D., House | Seattle | Building | 1977 |
| Messenger of Peace Chapel Car | Snoqualmie | Structure | 2009 |
| Millionaire’s Row Historic District | Seattle | District | 2021 |
| Montlake Bridge | Seattle | Structure | 1982 |
| Montlake Historic District | Seattle | District | 2015 |
| Moore Theatre and Hotel | Seattle | Building | 1974 |
| Mount Baker Park Historic District | Seattle | District | 2018 |
| Mount Baker Park Improvement Club Clubhouse | Seattle | Building | 2016 |
| Mount Baker Park and Boulevard | Seattle | Site | 2020 |
| Mount Baker Ridge Tunnel | Seattle | Structure | 1982 |
| Mount Zion Baptist Church | Seattle | Building | 2018 |
| Mukai Cold Process Fruit Barrelling Plant | Vashon | Building | 1994 |
| National Building | Seattle | Building | 1982 |
| Naval Air Station (NAS) Seattle | Seattle | District | 2010 |
| Naval Military Hangar-University Shell House | Seattle | Building | 1975 |
| Naval Reserve Armory | Seattle | Building | 2009 |
| Neely, Sr., Aaron and Sarah, Farm (Additional Documentation) | Auburn | Building | 1974 |
| Neighbor-Bennett House | Fall City | Building | 2004 |
| Nelson-Parker House | Woodinville | Building | 2014 |
| New Richmond Hotel | Seattle | Building | 2011 |
| New Washington Hotel | Seattle | Building | 1989 |
| Nihon Go Gakko | Seattle | Building | 1982 |
| Nippon Kan | Seattle | Building | 1978 |
| Norman Bridge | North Bend | Structure | 1994 |
| North Bend Ranger Station | North Bend | District | 1991 |
| Northern Bank and Trust Building | Seattle | Building | 2003 |
| Northern Life Tower | Seattle | Building | 1975 |
| Nuclear Reactor Building | Seattle | Building | 2009 |
| Old Georgetown City Hall | Seattle | Building | 1983 |
| Old Public Safety Building | Seattle | Building | 1973 |
| Olson, Louis and Ellen, House | Enumclaw | Building | 1984 |
| Olson, Mary, Farm | Kent | Building | 2001 |
| Olympic Hotel | Seattle | Building | 1979 |
| PIRATE (R-Class Sloop) | Seattle | Structure | 2000 |
| Pacific Coast Company House No. 75 | Renton | Building | 1979 |
| Pagani, Luigi and Aurora, House | Black Diamond | Building | 2002 |
| Palmer, A.L., Building | Seattle | Building | 2008 |
| Panama Hotel NHL | Seattle | Building | 2006 |
| Paramount Theatre | Seattle | Building | 1974 |
| Park Department, Division of Playgrounds | Seattle | Building | 1972 |
| Parsons, William, House | Seattle | Building | 1991 |
| Patton Bridge | Auburn | Structure | 1995 |
| Phillips House | Seattle | Building | 1993 |
| Pickering Farm | Issaquah | Building | 1983 |
| Pike Place Public Market Historic District | Seattle | District | 1970 |
| Pioneer Building, Pergola, and Totem Pole NHL | Seattle | District | 1977 |
| Pioneer Hall | Seattle | Building | 1970 |
| Pioneer Square-Skid Road District | Seattle | District | 1970 |
| Pioneer Square-Skid Road District (Boundary Increase) | Seattle | District | 1978 |
| Pioneer Square-Skid Road Historic District (Boundary Increase) | Seattle | District | 1988 |
| Point Robinson Light Station | Vashon Island | District | 2004 |
| Preston Community Clubhouse | Preston | Building | 2008 |
| Queen Anne Club | Seattle | Building | 1983 |
| Queen Anne High School | Seattle | Building | 1985 |
| Queen Anne Post Office and Regional Headquarters | Seattle | Building | 2011 |
| Queen Anne Public School | Seattle | Building | 1975 |
| RELIEF (lightship) NHL | Kirkland | Structure | 1975 |
| Rainier Club | Seattle | Building | 1976 |
| Ravenna Park Bridge | Seattle | Structure | 1982 |
| Ravenna-Cowen North Historic District | Seattle | District | 2018 |
| Raymond-Ogden Mansion | Seattle | Building | 1979 |
| Rector Hotel | Seattle | Building | 2002 |
| Redelsheimer-Ostrander House | Seattle | Building | 1990 |
| Redmond City Park | Redmond | District | 2009 |
| Roanoke Park Historic District | Seattle | District | 2009 |
| Ronald, Judge James T., House | Seattle | Building | 1975 |
| S.S. SAN MATEO | Seattle | Structure | 1971 |
| SCHOONER MARTHA | Seattle | Structure | 2001 |
| Saint Edward Seminary | Kenmore | District | 2007 |
| Sanders, Erick Gustave, Mansion | Kent | Building | 1986 |
| Schmitz Park Bridge | Seattle | Structure | 1982 |
| Sears, Joshua, Building | Kirkland | Building | 1982 |
| Seattle Art Museum | Seattle | Building | 2016 |
| Seattle Chinatown Historic District | Seattle | District | 1986 |
| Seattle Electric Company Georgetown Steam Plant NHL | Seattle | Building | 1978 |
| Seattle Municipal Light and Power Plant | North Bend | District | 1997 |
| Seattle Naval Hospital Chapel | Shoreline | Building | 2023 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Public Library | Seattle | Building | 1982 |
| Seattle Yacht Club-Main Station | Seattle | Building | 2006 |
| Seattle, Chief of the Suquamish, Statue | Seattle | Object | 1984 |
| Selleck Historic District | Selleck | District | 1989 |
| Shafer Building | Seattle | Building | 1995 |
| Shawnee House | Vashon | Building | 2000 |
| Showboat Theatre | Seattle | Building | 1986 |
| Shuey, Henry Owen, House | Seattle | Building | 2002 |
| Si View Park | North Bend | Building | 2015 |
| Sigma Kappa Mu Chapter House | Seattle | Building | 2007 |
| Skinner Building | Seattle | Building | 1978 |
| Skykomish Historic Commercial District | Skykomish | District | 2000 |
| Snoqualmie Depot | Snoqualmie | Building | 1974 |
| Snoqualmie Falls | Snoqualmie | Site | 2009 |
| Snoqualmie Falls Cavity Generating Station | Snoqualmie | Structure | 1976 |
| Snoqualmie Falls Hydroelectric Power Plant Historic District | Snoqualmie | District | 1992 |
| Snoqualmie School Campus | Snoqualmie | Building | 1989 |
| Sorenson House | Bothell | Building | 1995 |
| Steen, Helmer and Selma, House | Vashon | Building | 2000 |
| Stevens Pass Historic District | Berne | District | 1976 |
| Stimson-Green House | Seattle | Building | 1976 |
| Storey, Ellsworth, Cottages Historic District | Seattle | District | 1976 |
| Storey, Ellsworth, Residences | Seattle | Building | 1972 |
| Stuart House and Gardens | Seattle | Building | 1983 |
| Summit School | Seattle | Building | 1979 |
| Supply Laundry Building | Seattle | Building | 2013 |
| TOURIST II (auto ferry) | Kirkland | Structure | 1997 |
| Temple de Hirsch | Seattle | Building | 1984 |
| Thompson, Will H., House | Seattle | Building | 1979 |
| Thorton, William Harper, House | Bothell | Building | 1997 |
| Times Building | Seattle | Building | 1983 |
| Tracy House | Seattle | Building | 1995 |
| Triangle Hotel and Bar | Seattle | Building | 1976 |
| Trinity Parish Church | Seattle | Building | 1991 |
| Trommald Building | Enumclaw | Building | 2000 |
| Tukwila School | Tukwila | Building | 1979 |
| Turner-Koepf House | Seattle | Building | 1976 |
| U.S. Courthouse | Seattle | Building | 1980 |
| U.S. Immigrant Station and Assay Office | Seattle | Building | 1979 |
| U.S. Marine Hospital | Seattle | Building | 1979 |
| US Immigration Building | Seattle | Building | 1987 |
| USCG-11 (united states coast guard patrol vessel) | Seattle | Structure | 2022 |
| USCGC FIR NHL | Seattle | Structure | 1992 |
| Union Stables | Seattle | Building | 2013 |
| Union Station | Seattle | Building | 1974 |
| United Shopping Tower | Seattle | Building | 1980 |
| University Bridge | Seattle | Structure | 1982 |
| University Heights School | Seattle | Building | 2010 |
| University National Bank Building | Seattle | Building | 2021 |
| University of Washington Faculty Club | Seattle | Building | 2016 |
| Untitled Earthwork-Johnson Pit #30 | SeaTac | Site | 2021 |
| VIRGINIA V NHL | Seattle | Structure | 1973 |
| Vashon Hardware Store | Vashon | Building | 2000 |
| Victorian Apartments | Seattle | Building | 1990 |
| Vincent School | Carnation | Building | 2004 |
| Volker, William, Building | Seattle | Building | 1983 |
| Volunteer Park | Seattle | District | 1976 |
| WAWONA (schooner) | Seattle | Structure | 1970 |
| Wagner Houseboat | Seattle | Structure | 1982 |
| Wallingford Fire and Police Station | Seattle | Building | 1983 |
| Wallingford-Meridian Streetcar Historic District | Seattle | District | 2022 |
| Ward House | Seattle | Building | 1972 |
| Washington Athletic Club | Seattle | Building | 2018 |
| Washington Hall | Seattle | Building | 2010 |
| Washington Street Public Boat Landing Facility | Seattle | Structure | 1974 |
| Washington, James W. Jr. & Janie, Home & Studio | Seattle | Building | 2025 |
| Wenberg, Dr. Johan and Louise, House | Issaquah | Building | 2024 |
| West Point Light Station | Fort Lawton | Structure | 1977 |
| White Center Fieldhouse and Caretaker Cottage | Seattle | District | 2015 |
| Wilke Farmhouse | Seattle | Building | 1974 |
| Windham Apartments | Seattle | Building | 2006 |
| Winters, Frederick W., House | Bellevue | Building | 1992 |
| Women's University Club of Seattle | Seattle | Building | 2009 |
| Woodinville School | Woodinville | Building | 2017 |
| Woolworth, F.W., Company Store | Renton | Building | 2015 |
| Wurdemann, Harry Vanderbilt, House | Lake Forest Park | Building | 1990 |
| YWCA Building-Seattle | Seattle | Building | 2006 |
| Ye College Inn | Seattle | Building | 1982 |
| Yellowstone Road, The | Redmond | Structure | 1974 |
| ZODIAC (schooner) | Seattle | Structure | 1982 |