# List of nationally significant 20th-century architecture in South Australia

This is a list of nationally significant 20th-century architecture in South Australia. The buildings listed here appear in the publication "Nationally significant 20th century buildings in South Australia".
| Building | Date | Address | Suburb | Architect/Architectural Practice | Notes |
| 1st Turner Wood Project Home | 1969 | | Bellevue Heights | John Chappell | |
| Adelaide High School | 1951 | West Tce | Adelaide | E Fitzgerald & J Brogan (NSW) | |
| Adelaide Stock Exchange | 1901 | Exchange Place | Adelaide | Fuller & Dunn | Now houses the Royal Institution of Australia |
| Adelaide Superdrome | 1993 | | Gepps Cross | Carlo Gnezda SACON | Awarded the 2017 Jack Cheesman Award for Enduring Architecture |
| All Soul's Church | 1920 | | St Peters | | |
| AMP Building | 1934 | King Wm St | Adelaide | Louis Laybourne Smith / Woods, Bagot, Laybourne Smith & Irwin | |
| Apartments | 1992 | | Kensington | Raffen Maron | |
| Savings Bank of South Australia | 1930 | 65 Woodville Rd | Woodville | | Now owned by City of Charles Sturt, used for youth services |
| Savings Bank of South Australia head office (now BankSA) | 1943 | King Wm St | Adelaide | Eric McMichael / E.H. McMichael & Harris | |
| Barr Smith Library | 1932 | U of A | Adelaide | Woods Bagot | |
| Bicentennial Conservatory | 1988 | Adelaide Botanic Garden | Adelaide | Guy Maron / Raffen Maron Architects | Awarded the 2014 Jack Cheesman Award for Enduring Architecture |
| Bonython Hall | 1936 | North Tce | Adelaide | W Bagot / Woods, Bagot, Laybourne Smith & Irwin | |
| Bragg Laboratories | 1960 | U of A | Adelaide | Hassell & McConnell | part of the Physics Department, now renamed 'Darling West' |
| Burnside Town Hall | 1926–7 | Portrush Road | Tusmore | George Gavin Lawson / Chas Rutt & Lawson | Superseded by Burnside Ballroom (1950), but still in use as rehearsal room, hire |
| Capri Theatre | 1930 | Goodwood Road | Goodwood | | |
| Carclew | 1901 | Jeffcott St | North Adelaide | Bruce J Quinton | |
| Centennial Park, Jubilee Chapel, Centennial Park Cemetery | 1987 | Goodwood Road | Pasadena | Geof Nairn / Geof Nairn Architects | Awarded the 2024 Jack Cheesman Award for Enduring Architecture |
| Central Market Lift | 1999 | | Adelaide | Tectvs Architects | |
| City of Holdfast Bay Council Chambers | 1930 | Jetty Road | Brighton | Chris Smith | Former Brighton Town Hall |
| City of Mitcham Council Chamber | 1934 | Belair Rd | Torrens Park | D Berry | |
| Colonel Light Centre | 1978 | | Adelaide | Hassell Architects | |
| Court House | 1940 | | Whyalla | P R Claridge? | |
| David Jones Department Store | 1963 | Gawler Place | Adelaide | J McConnell / Hassell & McConnell | |
| Deepacres Apartments | 1942 | Melbourne Street | North Adelaide | Jack McConnell | |
| Dr Kents Paddock Housing | 1983 | | Kent Town | Newell Platten / South Australian Housing Trust | Awarded the 2007 Jack Cheesman Award for Enduring Architecture |
| Eco Housing Co-op Inc | 1999 | | Adelaide | Phillips & Pilkington | |
| Eden Park Residence | 1901 | | Marryatville | | |
| Elder House | 1937 | | Adelaide | W H Bagot | |
| Entry Pavilion, Soldiers Memorial Grounds | 1922 | | Torrensville | | |
| Epworth Building | 1924 | Pirie St | Adelaide | English & Soward | |
| Everard Court Apartments | 1930 | | Keswick | | |
| Flats 'Parkview' | 1959 | | Adelaide | JS Chappel | |
| Flinders Major Communications Building | 1990 | | Adelaide | Hassell | |
| Forensic Science Centre | 1975 | Divett Place | Adelaide | Colin Hocking / Dept of Housing & Construction | Awarded the 2016 Jack Cheesman Award for Enduring Architecture |
| Freemasons Hall | 1923 | North Tce | Adelaide | Bruce J Quinton & WH Harral | |
| Hampshire Hotel | 1911 | | Adelaide | FK Milne | at Adelaide Central Market |
| Hardholt Building | 1940 | | Port Adelaide | Philip Claridge / Claridge & Associates | |
| Hartley Building | 1927 | Kintore Ave | Adelaide | George Gavin Lawson / Public Buildings Department | |
| Hindmarsh Incinerator | 1935 | | Hindmarsh | Walter Burley Griffin / Walter Burley Griffin & Eric Nicholls | |
| Hotel Bay View | 1940 | | Whyalla | Philip Claridge & Associates ?? | |
| Immanuel College Chapel | 1970 | | Novar Gardens | Eric Von Schramek / Von Schramek & Dawes | |
| Info Science, Tech, Eng Buildings | 1992 | Flinders Uni | Bedford Park | Woods Bagot | |
| IPEC Building | 1962 | | Frewville | Peter Muller | |
| Jam Factory | 1991 | | Adelaide | Steve Grieve | |
| Kathleen Lumley College | 1966 | | North Adelaide | Dickson & Platten | |
| Maughan Church | 1965 | Franklin St | Adelaide | Eric Von Schramek / Brown & Davies, in Assoc. Eric Von Schramek | Named for Rev. James Maughan Demolished in August 2016 |
| Metropolitan Fire Station | 1983 | Wakefield St | Adelaide | Rod Roach / R Roach & Woodhead Australia | |
| MLC Building | 1957 | | Adelaide | BSM, Lawson, Cheesman, Doley & PTRS | |
| Mt Gambier Fire Station | 1955 | | Mt Gambier | Glover & Pointer | |
| Newland Memorial Church | 1927 | | Victor Harbor | Woods, Bagot, Jory & Laybourne Smith | |
| Norwood Morialta High School | 1972 | | Rostrevor | Peter Hooper / Public Buildings Department | |
| Nunyara Chapel | 1962 | | Belair | Cheesman, Doley, Brabham & Neighbour | |
| Nurney Residence | 1930 | | North Adelaide | W Bagot (Alterations) | |
| Office Building | 1965 | | Adelaide | Hassell & McConnell | |
| Offices | 1991 | | Adelaide | Hassell Architects | |
| Old Penola Estate | 1970 | | Penola | Geoffrey Woodfall (VIC) | |
| Penfolds Magill Estate Restaurant | 1996 | Penfolds Rd | Magill | Keith Cottier / Allen, Jack & Cottier | |
| Power Station & Offices | 1912 | | Adelaide | | |
| Prince Alfred College Hall | 1963 | Dequetteville Tce | Kent Town | Hassell & McConnell | |
| Reserve Bank | 1962 | Victoria Sq | Adelaide | Dept of Works & RA Jensen | |
| Residence | 1912 | | Thorngate | FW Danker | |
| Residence | 1920 | | Norwood | Jackman Gooden | |
| Residence | 1930 | | Prospect | | |
| Residence | 1950 | | Leabrook | | |
| Residence | 1906 | | Kent Town | FW Danker | |
| Residence | 1914 | | Toorak Gardens | FK Milne | |
| Residence | 1963 | | Medindie | Peter Muller | |
| Residence | 1940 | | Erindale | McConnell or Ellis? | |
| Residence | 1949 | | Springfield | Russell Ellis | |
| Residence | 1953 | | Burnside | Don Thompson / JS Chappel | |
| Residence | 1955 | | Leabrook | | |
| Residence | 1956 | | Kensington Park | Alexandra Mokwinska | |
| Residence | 1957 | | Marryatville | M Doley | |
| Residence | 1957 | | Beaumont | Cheesman, Doley, Brabham & Neighbour | |
| Residence | 1964 | | Norwood | Brian Polomka | |
| Residence | 1975 | | Walkerville | Geof Nairn | |
| Residence | 1990 | | College Park | Roger Myles | |
| Residence | 1999 | | Malvern | Con Bastiras | |
| Residence - Marina | 1998 | | North Haven | Nick Tridente / Tridente Architects | |
| Residence - SL 3 | 1970 | | Belair | Snowden & Pikusa | |
| Residence (Destree) | 1964 | | Burnside | Robert Dickson | |
| Residence (Dickson) | 1950 | | Rostrevor | Robert Dickson | |
| Residence (Lee) | 1960 | | Brighton | Dickson & Platten | |
| Residence (Neighbour) | 1958 | | Torrens Park | Keith Neighbour | |
| Roche | 1905 | | North Adelaide | English & Soward | |
| Rostrevor College - Resource Centre | 1998 | | Rostrevor | Nick Tridente / Tridente Architects | |
| Ruthven Mansions | 1911 | 21 Pulteney St | Adelaide | Alfred Barham Black / Black & Fuller | Now called Mansions on Pulteney |
| SA Brewing Co Offices | 1941 | | Adelaide | FK Milne & SH Gilbert | |
| SA Bureau of Meteorology | 1970 | | Kent Town | Jim Ward / Dept of Housing & Construction | |
| Sands & MacDougall Store | 1933 | King Wm St | Adelaide | Claridge, Bruer & Fisher | |
| Scammell Residence | 1930 | | Beaumont | George Gavin Lawson | |
| Science, Art, Technology Centre, St Peter's College | 1998 | | College Park | Geof Nairn | |
| St David's Church | 1960 | Glynburn Road | Burnside | | |
| St Georges Anglican Church | 1902 | | Goodwood | Thomas Henry Lyon | |
| St Raphael's Church | 1916 | Young Street | Parkside | | |
| St Theodore's Church | 1914 | Prescott Tce | Toorak Gardens | | |
| Stag Hotel | 1903 | Rundle St | Adelaide | Garlick & Jackman | |
| State Bank | 1955 | | Adelaide | | |
| Thebarton Incinerator | 1935 | | Thebarton | Walter Burley Griffin | |
| Thebarton Theatre / Town Hall | 1928 | Henley Beach Rd | Torrensville | Karberry & Chard | |
| Townhouses | 1966 | | North Adelaide | Dickson & Platten | |
| Townhouses | 1973 | | North Adelaide | Hannaford, Pellew & Hodgkinson | |
| Tubemakers Admin Building No 1 | 1938 | | Kilburn | | |
| Tubemakers Admin Building No 2 | 1930 | | Kilburn | | |
| Union Hall | 1950 | U of A | Adelaide | Louis Laybourne Smith / Woods, Bagot, Jory and Laybourne-Smith | Demolished in November 2010 |
| Union House, Adelaide University Union | 1975 | | University of Adelaide | Robert Dickson Dickson & Platten | Awarded the 2005 Jack Cheesman Award for Enduring Architecture |
| Walkley House | 1956 | 26 Palmer Place | North Adelaide | Robin Boyd (Melb) | Private residence, only house in South Australia designed by Robin Boyd |
| Walter Hughes Duncan Homes | 1908 | Alexandra Ave | Toorak Gardens | | |
| (National) War Memorial | 1931 | North Tce | Adelaide | Louis Laybourne Smith / Woods, Bagot, Jory and Laybourne-Smith | |
| West Torrens Library | 1964 | | Hilton | Keal & Jury | |
| Westminster School Performing Arts | 1989 | | Marion | Hassell Architects | |
| Westpac Bank | 1938 | | Adelaide | PR Claridge / Claridge & Associates | |
| West's Coffee Palace | 1903 | 110 Hindley St | Adelaide | AS & FH Conrad | |
| Woodlands' Apartments | 1930 | | North Adelaide | | |
| Workmen's Cottages (Elder) | 1902 | Rose Street | Mile End | E Davies & Rutt | |
| YMCA | 1950 | Flinders St | Adelaide | | |