| Address | Property Name | Parcel ID |
| 32 East Flat Hill Road, Southbury, CT | Downs House | 17/84/9 |
| 7 East Flat Hill Road, Southbury, CT | F. Mitchell House | 18/92/12 |
| 19 East Flat Hill Road, Southbury, CT | n/a | 18/92/11 |
| 75 East Flat Hill Road, Southbury, CT | n/a | 18/92/10 |
| 538 Flood Bridge Road, Southbury, CT | n/a | 24/79/14 |
| 594 Flood Bridge Road, Southbury, CT | n/a | 23/78/11 |
| 662 Flood Bridge Road, Southbury, CT | Moses Down House/ Methodist Parsonage | 23/78/10B |
| 18 Hawkins Road, Southbury, CT | n/a | 18/92/15 |
| 24 Hawkins Road, Southbury, CT | Judson/Manville House; Hoyt & Co. | 18/92/16 |
| 76 Library Road, Southbury, CT | n/a | 23/78/13 |
| 115 Library Road, Southbury, CT | n/a | 23/79/6 |
| 17 Library Road, Southbury, CT | Cunningham House | 23/79/8 |
| 52 Library Road, Southbury, CT | n/a | 23/78/12 |
| 91 Library Road, Southbury, CT | Mitchell-Williams House | 23/79/7 |
| 64 Middle Road, Southbury, CT | n/a | _ |
| 23-25 Middle Road, Southbury, CT | n/a | _ |
| 524 South Britain Road, Southbury, CT | Miss H.E. & S.E. Canfield House | 24/79/12 |
| 617 South Britain Road, Southbury, CT | McCarthy Store | 18/92/19 |
| 667 South Britain Road, Southbury, CT | Mitchell-Williams Store | 18/92/13 |
| 721 South Britain Road, Southbury, CT | n/a | 17/84/7 |
| 726 South Britain Road, Southbury, CT | n/a | 17/78/22A |
| 776 South Britain Road, Southbury, CT | n/a | 17/78/S3 |
| 842 South Britain Road, Southbury, CT | O. Mitchell House | 17/78/26 |
| 598-600 South Britain Road, Southbury, CT | Condon Store and Post Office | 23/79/4 |
| 657 South Britain Road, Southbury, CT | Benjamin Downs House | 18/92/14 |
| 693 South Britain Road, Southbury, CT | n/a | 17/84/8 |
| 759 South Britain Road, Southbury, CT | Cassidy Garage | _ |
| 495 South Britain Road, Southbury, CT | n/a | _ |
| 497 South Britain Road, Southbury, CT | B.C. Bradley House | 18/92/28 |
| 508 South Britain Road, Southbury, CT | n/a | 24/79/13 |
| 523 South Britain Road, Southbury, CT | Mill House | 18/92/26 |
| 542 South Britain Road, Southbury, CT | n/a | 24/79/11 |
| 547 South Britain Road, Southbury, CT | n/a | 18/92/24 |
| 556 South Britain Road, Southbury, CT | M. Canfield House | 24/79/10 |
| 573 South Britain Road, Southbury, CT | South Britain Fire House | 18/92/23 |
| 576 South Britain Road, Southbury, CT | South Britain Public Library | 23/79/5 |
| 583 South Britain Road, Southbury, CT | Meeting House of South Britain Ecclesiastical Society | 18/92/22 |
| 584 South Britain Road, Southbury, CT | n/a | 23/79/4A |
| 605 South Britain Road, Southbury, CT | George Smith House | 18/92/20 |
| 614 South Britain Road, Southbury, CT | n/a | 23/79/3 |
| 624 South Britain Road, Southbury, CT | Old Town Hall | 23/79/2 |
| 636 South Britain Road, Southbury, CT | Anson Bray House and former post office | 23/79/1 |
| 639 South Britain Road, Southbury, CT | Congregational Church Parsonage | 18/92/17 |
| 662 South Britain Road, Southbury, CT | n/a | _ |
| 680 South Britain Road, Southbury, CT | n/a | 23/78/19 |
| 698 South Britain Road, Southbury, CT | Methodist Episcopal Church | 17/78/20 |
| 709 South Britain Road, Southbury, CT | Mitchell House | 17/84/E2 |
| 712 South Britain Road, Southbury, CT | The Baldwin House | 17/78/21 |
| 715 South Britain Road, Southbury, CT | n/a | 17/84/E1 |
| 731 South Britain Road, Southbury, CT | n/a | 17/84/4A |