| 1 | Church of St LeonardSG14 3JR | Grade I |
| 2 | Gatehouse to Hertford Castle (Hertford Castle Demolished)SG14 1HR | Grade I |
| 3 | Hertford Quaker Meeting HouseSG14 1EH | Grade I |
| 4 | Shire HallSG14 1DQ | Grade I |
| 5 | 130, Fore StreetSG14 1AJ | Grade II* |
| 6 | 2, St Andrew StreetSG14 1HX | Grade II* |
| 7 | 3-11, Fore Street (See Details for Further Address Information)SG14 1DE | Grade II* |
| 8 | 42, Fore StreetSG14 1AW | Grade II* |
| 9 | Bailey HallSG14 1EN | Grade II* |
| 10 | Bailey Walls, North East Range to Hertford Castle (Hertford Castle Demolished)SG14 1EF | Grade II* |
| 11 | Bailey Walls, South East Range to Hertford Castle (Hertford Castle Demolished)SG14 1HD | Grade II* |
| 12 | Beadle HouseSG14 1DT | Grade II* |
| 13 | Bengeo HallSG14 3LL | Grade II* |
| 14 | Bengeo Hall StablesSG14 3JS | Grade II* |
| 15 | Bridgeman HouseSG13 8EZ | Grade II* |
| 16 | Cecil HouseSG14 1JA | Grade II* |
| 17 | Church of All Saints with St JohnSG13 8AF | Grade II* |
| 18 | County Hall Including Terraces and FountainSG13 8DF | Grade II* |
| 19 | Lombard HouseSG14 1EE | Grade II* |
| 20 | North Road HouseSG14 1LT | Grade II* |
| 21 | Number 43 Including St Nicholas HallSG14 1JA | Grade II* |
| 22 | Old Cross WharfSG14 1RU | Grade II* |
| 23 | The Old VicarageSG14 1FR | Grade II* |
| 24 | The Red HouseSG14 1AX | Grade II* |
| 25 | The Salisbury ArmsSG14 1BZ | Grade II* |
| 26 | The Walnuts (Number 23) Including Front RailingsSG14 1HP | Grade II* |
| 27 | Warren Park WarrenfieldSG14 3BX | Grade II* |
| 28 | Yeomanry House and Attached Front Area RailingsSG14 1JA | Grade II* |
| 29 | 10,12 and 14, St Andrew StreetSG14 1HX | Grade II |
| 30 | 10-16, the WashSG14 1PX | Grade II |
| 31 | 106,108 and 110, Fore StreetSG14 1AH | Grade II |
| 32 | 10 and 12, Railway StreetSG14 1BG | Grade II |
| 33 | 114 and 116, Fore StreetSG14 1AJ | Grade II |
| 34 | 11 and 13, Church StreetSG14 1FB | Grade II |
| 35 | 11 and 13, North RoadSG14 1LN | Grade II |
| 36 | 11 and 13, West StreetSG13 8EX | Grade II |
| 37 | 11, Port HillSG14 1PJ | Grade II |
| 38 | 121-129, Fore StreetSG14 1AX | Grade II |
| 39 | 12,14 and 16, Fore StreetSG14 1BZ | Grade II |
| 40 | 12,14 and 16, Water LaneSG14 1HS | Grade II |
| 41 | 12 and 14, Old CrossSG14 1RB | Grade II |
| 42 | 12, West StreetSG13 8EX | Grade II |
| 43 | 13a,15 and 15a, Bull PlainSG14 1DX | Grade II |
| 44 | 13 and 15, Old CrossSG14 1RE | Grade II |
| 45 | 13, Castle Street (See Details for Further Address Information)SG14 1EX | Grade II |
| 46 | 14,16,18 and 18a, Castle StreetSG14 1HU | Grade II |
| 47 | 14 and 15, Market PlaceSG14 1DQ | Grade II |
| 48 | 14, Parliament SquareSG14 1AT | Grade II |
| 49 | 14, West StreetSG13 8EX | Grade II |
| 50 | 15,17 and 19, North RoadSG14 1LN | Grade II |