| 1 | Church of Our LadyNE26 4QR | Grade I |
| 2 | The HallNE26 4QP | Grade I |
| 3 | Mausoleum 500 Metres East of Seaton Delaval HallNE26 4HL | Grade II* |
| 4 | Orangery in Walled Garden 300 Metres North East of Seaton Delaval HallNE26 4QW | Grade II* |
| 5 | 2 Lamps Standards, at Junction with Links Road and 80 Metres to EastNE26 4BA | Grade II |
| 6 | Avenue Farmhouse NorthNE26 4QS | Grade II |
| 7 | Barn and Shelter Sheds at Avenue Farm NorthNE26 4QS | Grade II |
| 8 | Basin, Slip and Outlet Walls at Seaton SluiceNE26 4RA | Grade II |
| 9 | Coach House and Attached Yard Walls to East of Seaton Delaval HallNE26 4QP | Grade II |
| 10 | Farmbuilding at Seaton Village Farm on East of Drive North of PondNE26 4QS | Grade II |
| 11 | Farmbuilding at Seaton Village Farm to East of FarmhouseNE26 4QT | Grade II |
| 12 | Farm Buildings 150 Metres North East of Seaton Delaval HallNE26 4QP | Grade II |
| 13 | Former Farmbuilding Ranges to North and East of Lookout FarmhouseNE26 4QN | Grade II |
| 14 | Garden Walls at North West Corner of Walled Garden, with Attached CottageNE26 4QW | Grade II |
| 15 | Garden Walls to North, East and South of Walled GardenNE26 4QW | Grade II |
| 16 | Garden Wall to North of Number 10NE26 4QZ | Grade II |
| 17 | Gatepiers, Gates and Ha Ha Wall at Entrance to Seaton Delaval HallNE26 4QR | Grade II |
| 18 | Ha Ha Wall Around MausoleumNE26 4HL | Grade II |
| 19 | Ha Ha Wall to South of the Old VicarageNE26 4QW | Grade II |
| 20 | Ha Ha Wall with Angle Bastions and Statues Enclosing Seaton Delaval Hall and Church of Our LadyNE26 4QR | Grade II |
| 21 | Icehouse 100 Metres North East of Seaton Delaval HallNE26 4QP | Grade II |
| 22 | Kings Arms Hotel with Coach House to EastNE26 4RD | Grade II |
| 23 | Lamp Standard on North of Junction with Albert RoadNE26 4QY | Grade II |
| 24 | Lookout Farmhouse with Attached Outbuilding to WestNE26 4QN | Grade II |
| 25 | Obelisk 900 Metres South South West of Seaton Delaval HallNE26 4RN | Grade II |
| 26 | Obelisk Base in the Avenue on East of Road to New HartleyNE26 4QT | Grade II |
| 27 | Piers and Gate at Entrance to Drive to Church of Our LadyNE26 4QS | Grade II |
| 28 | Primrose CottageNE26 4QL | Grade II |
| 29 | Privy 80 Metres North East of Seaton Delaval HallNE26 4QP | Grade II |
| 30 | Remains of Sluice Gate at West End of the CutNE26 4RD | Grade II |
| 31 | Retaining Walls Below Road, to East of King's Arms HotelNE26 4RD | Grade II |
| 32 | Seaton Sluice and Old Hartley War MemorialNE26 4QZ | Grade II |
| 33 | Shelter Shed in Park 50 Metres South of Lookout FarmhouseNE26 4QN | Grade II |
| 34 | Stable and Cartshed 20 Metres East of Avenue Farmhouse NorthNE26 4QS | Grade II |
| 35 | Statue of Samson Slaying Philistine in Garden to West of Seaton Delaval HallNE26 4QR | Grade II |
| 36 | The Dene CottageNE26 4QL | Grade II |
| 37 | The OctagonNE26 4QZ | Grade II |
| 38 | The Old Vicarage and Attached WallsNE26 4QW | Grade II |
| 39 | Turntable Mechanism 20 Metres West of the King's Arms HotelNE26 4RD | Grade II |
| 40 | Watch House on Rocky IslandNE26 4RT | Grade II |
| 41 | Yard Walls at Avenue Farm NorthNE26 4QS | Grade II |
| 42 | Yard Walls with Attached Outbuildings to West of Seaton Delaval HallNE26 4QR | Grade II |