| Ahrens, Henry, House | Champaign | Building | 2011 |
| Alpha Delta Phi Fraternity House | Champaign | Building | 1990 |
| Alpha Delta Pi Sorority House | Urbana | Building | 2000 |
| Alpha Gamma Delta Fraternity House | Urbana | Building | 2009 |
| Alpha Phi Fraternity House-Beta Alpha Chapter | Champaign | Building | 2005 |
| Alpha Rho Chi Fraternity House | Champaign | Building | 1997 |
| Alpha Xi Delta Sorority Chapter House | Urbana | Building | 1989 |
| Altgeld Hall, University of Illinois | Urbana | Building | 1970 |
| Beta Theta Pi Fraternity House | Champaign | Building | 1989 |
| Building at 201 North Market Street | Champaign | Building | 1997 |
| Building at 203-205 North Market Street | Champaign | Building | 1997 |
| Burnham Athenaeum | Champaign | Building | 1978 |
| Cattle Bank | Champaign | Building | 1975 |
| Champaign Downtown Commercial District | Champaign | District | 2020 |
| Chanute Field Historic District | Rantoul | District | 2006 |
| Chemical Laboratory | Urbana | Building | 1986 |
| Delta Kappa Epsilon Fraternity House | Champaign | Building | 1990 |
| Delta Upsilon Fraternity House | Champaign | Building | 1990 |
| Downtown Urbana Historic District | Urbana | District | 2019 |
| Elm Street Court | Urbana | District | 2000 |
| Farm House | Urbana | Building | 1989 |
| Gamma Phi Beta Sorority House | Urbana | Building | 1994 |
| Georgian, The | Champaign | Building | 2005 |
| Greek Revival Cottage | Urbana | Building | 1977 |
| Griggs, Clark R., House | Urbana | Building | 1978 |
| Hazen Bridge | Mohomet | Structure | 1994 |
| Illinois Traction Building | Champaign | Building | 2006 |
| Inman Hotel | Champaign | Building | 1989 |
| Kappa Delta Rho Fraternity House | Champaign | Building | 1990 |
| Kappa Kappa Gamma Sorority House | Urbana | Building | 2004 |
| Kappa Sigma Fraternity House | Champaign | Building | 1989 |
| Library-University of Illinois at Urbana-Champaign | Urbana | Building | 2000 |
| Lincoln (Statue) | Urbana | Object | 2004 |
| Lincoln Building | Champaign | Building | 1996 |
| Mattis, George and Elsie, House | Champaign | Building | 2010 |
| Metal Shop | Urbana | Building | 1986 |
| Military Drill Hall and Men's Gymnasium | Urbana | Building | 1986 |
| Morrow Plots, University of Illinois NHL | Urbana | Site | 1968 |
| Natural History Building | Urbana | Building | 1986 |
| New Orpheum Theatre | Champaign | Building | 1991 |
| Phi Delta Theta Fraternity House | Champaign | Building | 2004 |
| Phi Mu Sorority House | Urbana | Building | 1990 |
| Ricker, Nathan C., House | Urbana | Building | 2000 |
| Royer, Joseph W., House and Ella Danely Cottage | Urbana | Building | 2022 |
| Sigma Alpha Epsilon Fraternity House | Champaign | Building | 1990 |
| Smith, Tina Weedon, Memorial Hall | Urbana | Building | 1996 |
| Solon, Francis and Abbie, House | Champaign | Building | 2007 |
| Squires, Frederick, House | Champaign | Building | 2011 |
| Stone Arch Bridge | Champaign | Structure | 1981 |
| U.S. Post Office | Champaign | Building | 1976 |
| Unitarian Church of Urbana | Urbana | Building | 1991 |
| University of Illinois Astronomical Observatory | Urbana | Building | 1986 |
| University of Illinois Experimental Dairy Farm Historic District | Urbana | District | 1994 |
| University of Illinois Observatory NHL | Urbana | Building | 1989 |
| Urbana-Lincoln Hotel-Lincoln Square Mall | Urbana | Building | 2006 |
| Virginia Theater | Champaign | Building | 2003 |
| Vriner's Confectionery | Champaign | Building | 1983 |
| Warm Air Research House | Urbana | Building | 2001 |
| Wee Haven | Champaign | Building | 2011 |
| Women's Gymnasium, University of Illinois at Urbana-Champaign | Urbana | Building | 2003 |
| Women's Residence Hall-West Residence Hall, University of Illinois at Urbana-Champaign | Urbana | Building | 2003 |
Morrow Plots, University of Illinois NHL Urbana · Site · listed 1968 
University of Illinois Observatory NHL Urbana · Building · listed 1989 
Ahrens, Henry, House Champaign · Building · listed 2011 
Alpha Delta Phi Fraternity House Champaign · Building · listed 1990 
Alpha Delta Pi Sorority House Urbana · Building · listed 2000 
Alpha Gamma Delta Fraternity House Urbana · Building · listed 2009 
Alpha Phi Fraternity House-Beta Alpha Chapter Champaign · Building · listed 2005 
Alpha Rho Chi Fraternity House Champaign · Building · listed 1997 
Alpha Xi Delta Sorority Chapter House Urbana · Building · listed 1989 
Altgeld Hall, University of Illinois Urbana · Building · listed 1970