| 1 | Floras Column, Syon ParkTW8 8HE | Grade I |
| 2 | Gate Lodge to Syon HouseTW8 8JG | Grade I |
| 3 | Syon HouseTW8 8JG | Grade I |
| 4 | Syon House ConservatoryTW8 8JF | Grade I |
| 5 | Syon Park Boathouse the PavilionTW7 6BD | Grade I |
| 6 | Syon Park Entrance Lodges and Gates, London RoadTW8 8JH | Grade I |
| 7 | Church of All SaintsTW7 6BB | Grade II* |
| 8 | Garvin HouseTW7 7DL | Grade II* |
| 9 | Gates to Syon Lodge Syon LodgeTW7 5XD | Grade II* |
| 10 | Gumley House Gumley House (Convent)TW7 6DN | Grade II* |
| 11 | The London Apprentice Public HouseTW7 6BE | Grade II* |
| 12 | 11, Lower SquareTW7 6XH | Grade II |
| 13 | 2, Church StreetTW7 6BH | Grade II |
| 14 | 42-46, Church StreetTW7 6BG | Grade II |
| 15 | 48 and 50, Church StreetTW7 6BG | Grade II |
| 16 | 49 and 51, Church StreetTW7 6BE | Grade II |
| 17 | 58 and 60, Church StreetTW7 6BE | Grade II |
| 18 | 59, Church StreetTW7 6BE | Grade II |
| 19 | 6 and 8 Church StreetTW7 6BH | Grade II |
| 20 | 6, South StreetTW7 7BG | Grade II |
| 21 | 8, Upper SquareTW7 7BJ | Grade II |
| 22 | 92-96, Twickenham RoadTW7 6DL | Grade II |
| 23 | Abbey Barn and Attached Wall and GatewayTW8 8JF | Grade II |
| 24 | Boundary Wall to Syon ParkTW7 6AX | Grade II |
| 25 | Busch House SchoolTW7 6AU | Grade II |
| 26 | Butlers AlmshousesTW7 7DJ | Grade II |
| 27 | Coach and Horses Public HouseTW7 5BQ | Grade II |
| 28 | Creek HouseTW7 6BE | Grade II |
| 29 | Entrance Gate and Front Wall of Gumley HouseTW7 6DN | Grade II |
| 30 | Former Riding School of Syon ParkTW8 8JF | Grade II |
| 31 | Front Entrance Gate and Gateposts to Nazareth HouseTW7 7FA | Grade II |
| 32 | Garden Pedestal and Vase in Syon ParkTW8 8JF | Grade II |
| 33 | Garden Wall at Syon ParkTW8 8JG | Grade II |
| 34 | Isleworth Public HallTW7 7BG | Grade II |
| 35 | Isleworth War MemorialTW7 6DN | Grade II |
| 36 | Memorial to the Pears Family, Isleworth CemeteryTW7 6AG | Grade II |
| 37 | Mill Bridge and BasinTW7 6BZ | Grade II |
| 38 | Nazareth HouseTW7 7FB | Grade II |
| 39 | Nazareth House GatehouseTW7 7FA | Grade II |
| 40 | Northumberland HouseTW7 6RL | Grade II |
| 41 | Ornamental Bridge in Syon Park Over Pond Near Entrance GatesTW7 5BS | Grade II |
| 42 | Pair of Chapels at Isleworth CemeteryTW7 6GS | Grade II |
| 43 | Park CottagesTW7 5XD | Grade II |
| 44 | Porters Lodge at Syon House at Corner of Park Road and Church StreetTW7 6BD | Grade II |
| 45 | Railings and Lamp of Number 43 Richard Reynolds HouseTW7 6BE | Grade II |
| 46 | Retaining Walls of Garden Pool, and Statue in Syon ParkTW8 8JF | Grade II |
| 47 | Sarah Sermons AlmshousesTW7 6DJ | Grade II |
| 48 | Sir Thomas Ingrams AlmshousesTW7 6DE | Grade II |
| 49 | Small Gateway to Syon Park to North East of Park EntranceTW8 8JH | Grade II |
| 50 | Stables of Syon ParkTW8 8JF | Grade II |