| 1019 Spruce Street | Squires-Tourtellot House | 4087 |
| 1128 Pine Street | First Congregational Church | 4087 |
| 934 Pearl Street | Armory Building | 4087 |
| 1142-1148 Pearl Street | Boettcher-Valentine Building | 4087 |
| 2305 Broadway | Grill Mansion | 4087 |
| 885 Arapahoe Avenue | Highland School | 4098 |
| 809 Pine Street | Morrison-McKenzie House | 4191 |
| 900 Baseline/Chautauqua Park | Chautauqua Auditorium | 4193 |
| 1507 Pine Street | Temple-Bowron House | 4190 |
| 2429 Broadway | Greene-Earl House | 4188 |
| 1419 Pine Street | St. John's Episcopal Church | 4189 |
| 1125 Pine Street | Carnegie Library | 4192 |
| 15 S. 35th Street | Martin Farmhouse | 4204 |
| 2115 13th Street | Boulderado Hotel | 4216 |
| 1201 9th Street | Pioneer Cemetery (Columbia Cemetery) | 4252 |
| 1305 Pine Street | Dwight-Nicholson House | 4253 |
| 1619 Pine Street | McAllister House | 4294 |
| 1733 Canyon Blvd | Woodward-Baird House | 4379 |
| 1709 Pine Street | Whiteley-Hellems House | 4378 |
| 741 Pearl Street | Arnett-Montgomery House | 4424 |
| 905 13th Street | Derham-Lindgren House | 4425 |
| 2940 20th Street | Decker-Tyler House | 4426 |
| 2366 Junction Place | Boulder Jaycees Depot | 4444 and 7625 |
| 1206 Euclid Avenue | Harbeck-Bergheim House | 4454 |
| 1010 Aurora Avenue | Fire Station #2 | 4455 |
| 2024 - 2032 14th Street | Boulder Theater | 4483 |
| 427 Pine Street | Spencer House | 4703 |
| 1590 Broadway | Old Power Substation | 4753 |
| 1235-37 Elder Avenue | Wolff House | 4752 |
| 1541-45 Pearl Street | Odd Fellows Hall | 4751 |
| 3011 Broadway | Newland House | 4800 |
| 970 Aurora | Mount Saint Gertrude Academy | 4823 |
| 745 Highland Avenue | Moorhead House | 4835 |
| 655 Arapahoe Avenue | Lennartz House | 4841 |
| 2027-2041 11th Street | Terrace Apartments | 4876 |
| 201 Pearl Street | Brierley Farmhouse | 4999 |
| 707 12th Street | Fischer House | 5104 |
| 541 Highland Avenue | Whitney-Holmes House | 5116 |
| 1207 Aurora Avenue | Bushee House | 5144 |
| 933 Mapleton Avenue | Patton House | 5164 |
| 1735 Mapleton Avenue | Greenman House | 5178 |
| 1302 Baseline Road | Repplier House | 5179 |
| 626 13th Street | Drewelowe-Van Ek House | 5214 |
| 1540 Pine Street | Henry Fulton House | 5226 |
| 1645 Pine Street | C.G. Buckingham House | 5227 |
| 355 West Arapahoe Lane | Queen Anne House | 5232 |
| 637 Pine Street | McClure House | 5231 |
| 2130 Arapahoe Avenue | Lincoln School | 5235 |
| 1015 15th Street | Alpha Omicron Pi | 5236 |
| 1403 Baseline Road | Henrietta Somers House | 5265 |
| 2141 Bluff Street | Wickstrom House | 5268 |
| 720 11th Street | David Hull Holmes House | 5269 |
| 888 13th Street | Alpha Phi House | 5286 |
| 1235 Pearl Street | White-Davis Mercantile Building | 5296 |
| 1010 12th Street | Huntington Arms Building | 5311 |
| 646 Pearl Street | Arnett-Fullen House | 5318 |
| 308 Pearl Street | Brierley-Smith House | 5328 |
| 2224 13th Street | Patterson-Bittner House | 5335 |
| 2455 Broadway | J.R. Brackett House | 5356 |
| 1813 Pine Street | Werley House | 5371 |
| 2016 Walnut Street | Lytle House | 5370 |
| 907 12th Street | Norlin House | 5379 |
| 2019 Goss Street | Ruth Cave Flowers House | 5466 |
| 703 11th Street | Ekeley House | 5474 |
| 2045 13th Street | B.P.O. Elks Lodge No. 566 | 5473 |
| 1750 13th Street | City Storage and Transfer Building | 5488 |
| 942 Pine Street | Kohler House | 5529 |
| 2108 Walnut Street | Berkley Farm | 5542 |
| 1333 Pine Street | John Pughe House | 5555 |
| 2850 Links Drive | Boulder Country Club #1 | 5589 |
| 1543 Pine Street | Austin House | 5590 |
| 907 7th Street | Scott Carpenter House | 5595 |
| 511 Marine Street | Lotus House | 5614 |
| 440 Arapahoe Avenue | Jones-Walton House | 5615 |
| 2242 16th Street | William & Jennie Montgomery House | 5613 |
| 970 11th Street | Craftsman / Tudor Style House | 5628 |
| 2331 Broadway | Lesser Family Home and Apartments | 5629 |
| 811 Mapleton Avenue | Curtin House | 5637 |
| 2303 Bluff Street | Perry White House | 5658 |
| 1424-28 Pearl Street | Citizens National Bank Building | 5666 |
| 855 13th Street | Thornton House | 5673 |
| 2229 Broadway | Oliver-Bowman House | 5691 |
| 829 Mapleton Avenue | Burdick-Cole House | 5694 |
| 701 9th Street | Skiff-Armstrong House | 5718 |
| 66 S. Cherryvale | Viele-Van Vleet Farmstead (15 bldgs) | 5727 |
| 1928 Pearl Street | John & Matilda Borgstrand House | 5726 |
| 1236 Canyon Blvd. | Glen Huntington Bandshell | 5751 |
| 1718 Canyon Blvd | McVey House | 5763 |
| 1145 Grandview Ave | Tepley House | 5772 |
| 1410 Quince Avenue | Nomad Playhouse | 5779 |
| 842 Grant Place | Malde House | 5823 |
| 2043 Pearl Street | Goldberg House | 5822 |
| 703 Pine Street | Cowie House | 5827 |
| 453 Highland Avenue | Mayall-Pickett House | 5837 |
| 505 Pine Street | Casaday-Winter House | 5840 |
| 616 14th Street | Dyde-Rosall House | 5854 |
| 1317 7th Street | Allison House | 5895 |
| 2008 Pine Street | Whittier School | 5918 |
| 1630-36 Spruce Street | Lamb House | 5935 |
| 1035 Maxwell Avenue | Thurston House | 5944 |
| 1607 6th Street | Webb House | 5964 |
| 2133 9th Street | Russell-Koerner House | 5978 |
| 3rd & Canyon | Boyd Smelter Site | 6003 |
| 956 16th Street | University Hill School | 6002 |
| 1911-15 Pearl Street | Johnson-Betasso Terrace | 6022 |
| 2020 19th Street | John Day House | 6024 |
| 2010-14 19th Street | Wahlstrom Mission Terrace | 6023 |
| 1945-49 Pearl Street | Campbell Corner Grocery | 6021 |
| 727 13th Street | Youmans House | 6027 |
| 1117 Pine Street | Blystad-Laeser House | 6042 |
| 436 Highland Avenue | Ardourel House | 6047 |
| 2241 17th Street | Swedish Lutheran Church | 6079 |
| 5172 Valmont Road | Roney Farmhouse | 7017 |
| 3160 Airport Road | Platt Farmhouse | 7016 |
| 815-817 Pearl Street | German House | 7029 |
| 2517 Broadway | Chapman House | 7030 |
| 2008-2010 18th Street | Carey Hotel | 7092 |
| 1123 Spruce Street | Soule-Coates House | 7114 |
| 1740 Sunset Blvd | Reinert-Olson House | 7113 |
| 1401-1421 Spruce Street | First United Methodist Church of Boulder | 7119 |
| 1610 Hillside Road | Linsley House | 7122 |
| 4789 28th Street | Holiday Drive-In Sign | 7203 |
| 1135 13th Street | Fox-Rialto Theater | 7204 |
| 845 Walnut Street | Anderson-Martin House | 7220 |
| 3773 Canfield Street | Boulder Oil Field's McKenzie Well | 7232 |
| 1290 Baseline Road | Pietenpol House | 7245 |
| 602 Maxwell Avenue | Dasy Grocery | 7258 |
| 1625 Pine Street | Chauncey Stokes House | 7280 |
| 1928 6th Street | Pool and Son Blacksmith Shop | 7298 |
| 2045 Walnut Street | Gutfelder House and Mason Terrace | 7303 |
| 2430 20th Street | Raikes House | 7309 |
| 1120 1/2 Pine Street | Soule Carriage House | 7325 |
| 731 Pine Street | Herrick House | 7337 |
| 820 Pine Street | William V. Casey House | 7352 |
| 2245 Mapleton Avenue | Johnston-House Residence | 7355 |
| 743 9th Street | Thomas Crockett Property | 7435 |
| 1820 Pearl Street | Kohler-Sherman House | 7452 |
| 210 Arapahoe Avenue | Canon Cottages | 7471 |
| 700 16th Street | Totten House | 7508 |
| 1227 High Street | Pomeroy-Cheney House | 7510 |
| 700 Pearl Street | Racket Grocery | 7513 |
| 1135 Jay Street | Roitz House | 7529 |
| 1936 Mapleton | Frakes House | 7551 |
| 5653 Baseline Rd | Glenn Barn | 7583 |
| 3231 11th Street | Chambers House | 7611 |
| 4051 Broadway | Stephens Granary | 7612 |
| 819 6th Street | Labrot House | 7618 |
| 2303 Mapleton | Herkert House | 7633 |
| 2316 23rd Street | Herkert Cottage | 7634 |
| 1777 Broadway | Municipal Building | 7640 |
| 896 17th Street | Hampton-Barnes House | 7644 |
| 1918 1/2 Pearl Street | Lund Cottage | 7647 |
| 800 Arapahoe | Hannah Barker House | 7648 |
| 1215 Cedar Avenue | Washington School | 7668 |
| 800 Pearl Street | Chamberlain & Co. Sampling Works | 7683 |
| 1143 13th Street | Silver and Gold Cleaners/Paynes Shoe Shop | 7692 |
| 1155 13th Street | Kinsley & Co. | 7693 |
| 1937 Spruce Street | Nelson-Whiteley House | 7708 |
| 1017 Maxwell Avenue | Inglis House | 7709 |
| 900 28th Street | Greenshield Building | 7727 |
| 550 College Avenue | Wilson-Haertling House | 7784 |
| 1921 Pine Street | Bell-Bass House | 7794 |
| 1089 13th Street | Flatirons Theatre | 7843 |
| 950 28th Street | First Christian Church | 7847 |
| 3015 Kalmia Avenue | Harper-Lundgren House | 7923 |
| 2205 Broadway | Boulder Masonic Lodge | 7932 |
| 1815 Mapleton Avenue | Beck-Ray-Schell House | 7958 |
| 1922 20th Street | Mackenzie House | 7954 |
| 2104 Bluff Street | Kelso House | 7979 |
| 905 Marine Street | Wolcott House | 7997 |
| 1630 9th Street | Finch-Paddock House | 7999 |
| 1622 9th Street | George & Mabel Reynolds House | 7998 |
| 1919 14th Street | Colorado Building | 8009 |
| 1029 Broadway | Evans Scholars House | 8037 |
| 977 7th Street | Krueger-Cunningham House | 8036 |
| 2245 Pine Street | Ravenscraft House | 8058 |
| 747 12th Street | The Cowgill Property | 8029 |
| 2322 23rd Street | Herkert-Glasser Cottage | 8083 |
| 2200 Broadway | Trinity Lutheran Church | 8100 |
| 1900 King Avenue | Sampson-Wood House | 9003 |
| 479 Arapahoe Avenue | Higman House | 8141 |
| 2949 Broadway | Hulse House | 8142 |
| 2935 19th Street | Tyler-Monroe-Bartlett Property | 8148 |
| 4750 Broadway | Armory Mess Hall | 8159 |
| 1345 Spruce Street | The Physician's-Dorje Dzong Building | 8158 |
| 1406-08 Pine Street | White House Apartments | 8224 |
| 1414 Pine Street | Coulehan House | 8225 |
| 2118 14th Street | First Methodist Church Parsonage | 8226 |
| 2124 14th Street | Guy Adams House | 8227 |
| 2132 14th Street | Herman-Halfen House | 8228 |
| 1424 Pine Street | Lounsberry-Priest House | 8229 |
| 1443 Spruce Street | Rachofsky-Faus House | 8230 |
| 1031 14th St. | Veysey-Cash House | 8329 |
| 1031 14th St. | Jackson House | 8329 |
| 1045 14th St. | Nelson-Germann House | 8330 |
| 1059 14th St. | Beck-Coppinger House | 8331 |
| 1027 14th St. | Swayne House | 8328 |
| 1027 14th St. | Glen Huntington Greek House | 8328 |
| 1027 14th St. | Demuth House | 8328 |
| 2326 Goss St. | Sisson-Joratz-Bader House | 8367 |
| 601 Kalmia Ave. | Braden-Belz House | 8378 |
| 2440 Kohler Dr. | McDonald Residence | 8389 |
| 891 12th St. | SAE-ZBT-Marpa House | 8385 |
| 2962 11th St. | Austin-Estey House | 8418 |
| 1770 13th St. | Boulder-Dushanbe Teahouse | 8431 |
| 977 9th St. | The Castle House | 8444 |
| 90 Arapahoe Ave. | The Silver Saddle Motel | 8445 |
| 2230 20th St. | Barnes-Gillard House | 8446 |
| 96 Arapahoe Ave. | Nuzum's Nursery | 8466 |
| 3485 Stanford Ct. | Mount Calvary Lutheran Church | 8490 |
| 963 7th St. | Muenzinger-Yeager House | 8513 |
| 1902 Walnut St. | September School | 8491 |
| 1300 Canyon Blvd. | Atrium Building | 8496 |
| 2130 22nd St. | Shinn-Jeskes House | 8497 |
| 830 14th Street | Powers House | 8580 |
| 604 Mapleton Ave. | Eastman-Reid-Collins House | 8611 |
| 2120 Bluebell Ave. | Fankboner-Hartman-Ely House | 8625 |
| 904 Mapleton Ave. | Gardiner-Sandoe House | 8634 |
| 1836 Pearl St. | Thelma Maydew House | 8646 |
| 3300 Penrose Pl. | Geological Society of America | 8652 |
| 575 Euclid Ave. | Sirotkin-Woodman House | 8680 |
| 658 Pleasant St. | Tiara House | 8686 |
| 3375 16th St. | Orchard House | 8703 |
| 745 University Ave. | Polls and Registration House | 8741 |
| 1004 Lincoln Pl. | Beard-Stoyva House | 8765 |
| 844-850 12th St. | Heilman–Bedell–Stepanek Property | 8766 |
