- Historic Resources Advisory Board
- Planning Department
- Landmarks
- Allen House I, Circa 1935
- Allen House II, Circa 1940
- Angler's Club, Circa 1932
- Aquinas Hall, Circa 1930
- Bickner Building, Circa 1897
- Black House, Circa 1933
- Brown-Vose House, Circa 1885
- Bryant Home Marker
- C. Didzun House, Circa 1930
- Carl House, Circa 1925
- Carman House, Circa 1857
- Carter House, Circa 1881
- Christie School
- Clara Weinstein House, Circa 1931
- Cleary House, Circa 1937
- Collard House, Circa 1860
- Conway House, Circa 1892
- Davidson House, Circa 1928
- Eastman House, Circa 1933
- Education Hall, Circa 1937
- Erickson House, Circa 1920
- F. Davidson House, Circa 1898
- Flavia Hall, Circa 1937
- Harris House, Circa 1934
- Hofer House, Circa 1930
- Iron Furnace Chimney, Circa 1865
- Jantzen Estate, Circa 1930
- Johnson Barn, Circa 1910
- Klose House, Circa 1940
- Laidlaw House, Circa 1930
- Lake Oswego Country Club, Circa 1925
- Lake Oswego Hunt Club, Circa 1938
- Lakewood School, Circa 1928
- Larson House, Circa 1920
- Log Hoist, Circa 1900
- Lueg House, Circa 1870
- Marylhurst Admin Building, Circa 1929
- Marylhurst Cemetery/Altar, Circa 1911, 1937
- McCall House, Circa 1930
- McWaters House, Circa 1930
- Methodist Episcopal Church, Circa 1894/1929
- Mulder House, Circa 1927
- Murphy Company Building, Circa 1920
- Odd Fellows Hall, Circa 1890
- Old Mine Trail, Circa 1870
- Oswego Iron Company Cottage, Circa 1880
- Parelius House, Circa 1939
- Patton House, Circa 1936
- Peg Tree, Circa 1852
- Pioneer Cemetery
- Platts House, Circa 1900
- Rogers Building I, Circa 1925
- Rogers Building II, Circa 1929
- Rogers House, Circa 1929
- Rosentreter House, Circa 1925
- Sacred Heart School, Circa 1925
- Shepard House, Circa 1918
- Smith House, Circa 1868
- St. Catherine's Hall, Circa 1937
- Sundeleaf House, Circa 1939-40
- Tualatin-Oswego Canal, Circa 1869-1871
- Tug Master's House, Circa 1905
- Twinings House, Circa 1915
- Van Houten House, Circa 1939
- Vose House, Circa 1898
- Waldorf House, Circa 1900
- Warren House, Circa 1912
- White House, Circa 1938
- Worthington House
- Landmark Homeowner's Guide
Allen House II, Circa 1940
Allen House II, Circa 1940
Location: 1136 Westward Ho Rd
