About the Seaton Delaval Conservation Area
The Seaton Delaval Conservation Area covers about 606 hectares and was designated by Northumberland County Council in 1990. Inside the boundary are 42 listed buildings (2 Grade I, 2 Grade II*, 38 Grade II). The most significant is Church of Our Lady, Grade I. 6 Tree Preservation Order records overlap the area; every other tree here still needs six weeks’ notice before work. Part of the area lies in flood zone 3, so an extension may need a flood risk assessment.
What changes inside the conservation area
Conservation areas are “Article 2(3) land”. You keep most permitted development rights, but these are removed or tightened.
- Rear extensionElsewhere: 3 m · 6 m with PANo 6 m / 8 m prior approval
- Two-storey extensionElsewhere: 3 mNeeds planning permission
- Side extensionElsewhere: Half the widthNeeds planning permission
- Loft conversionElsewhere: 50 m³Needs planning permission
- Garden roomElsewhere: 2.5 m high by boundariesNot beside the house
- PorchElsewhere: 3 m²Same limits
- Solar panelsElsewhere: 0.2 m projectionSame limits
- Air source heat pumpElsewhere: 1 unitNot facing the road
- Fences, walls and gatesElsewhere: 2 m · 1 m by a roadSame limits
- External claddingElsewhere: Matching materialsNeeds planning permission
- Tree workElsewhere: No notice6 weeks’ notice to the council
- Demolition (over 115 m³)Elsewhere: AllowedNeeds planning permission
Limits for a semi-detached house under the GPDO 2015. An Article 4 direction can remove more.
Listed buildings in the conservation area
Any work affecting these needs listed building consent, inside or out. Each links to its entry on the National Heritage List.
- Church of Our LadyGrade I
- The HallGrade I
- Mausoleum 500 Metres East of Seaton Delaval HallGrade II*
- Orangery in Walled Garden 300 Metres North East of Seaton Delaval HallGrade II*
- 2 Lamps Standards, At Junction With Links Road and 80 Metres to EastGrade II
- Avenue Farmhouse NorthGrade II
- Barn and Shelter Sheds at Avenue Farm NorthGrade II
- Basin, Slip and Outlet Walls at Seaton SluiceGrade II
- Coach House and Attached Yard Walls to East of Seaton Delaval HallGrade II
- Farm Buildings 150 Metres North East of Seaton Delaval HallGrade II
- Farmbuilding at Seaton Village Farm on East of Drive North of PondGrade II
- Farmbuilding at Seaton Village Farm to East of FarmhouseGrade II
- Former farmbuilding ranges to north and east of Lookout FarmhouseGrade II
- Garden Wall to North of Number 10Grade II
- Garden Walls at North West Corner of Walled Garden, With Attached CottageGrade II
- Garden Walls to North, East and South of Walled GardenGrade II
- Gatepiers, Gates and Ha Ha Wall at Entrance to Seaton Delaval HallGrade II
- Ha Ha Wall Around MausoleumGrade II
- Ha Ha Wall to South of the Old VicarageGrade II
- Ha Ha Wall With Angle Bastions and Statues Enclosing Seaton Delaval Hall and Church of Our LadyGrade II
- Icehouse 100 Metres North East of Seaton Delaval HallGrade II
- Kings Arms Hotel With Coach House to EastGrade II
- Lamp Standard on North of Junction With Albert RoadGrade II
- Lookout Farmhouse With Attached Outbuilding to WestGrade II
Show all 42 listed buildings ↓All 42 listed buildings
- Obelisk 900 Metres South South West of Seaton Delaval HallGrade II
- Obelisk Base in the Avenue on East of Road to New HartleyGrade II
- Piers and Gate at Entrance to Drive to Church of Our LadyGrade II
- Primrose CottageGrade II
- Privy 80 Metres North East of Seaton Delaval HallGrade II
- Remains of Sluice Gate at West End of the CutGrade II
- Retaining Walls Below Road, To East of King's Arms HotelGrade II
- Seaton Sluice and Old Hartley War MemorialGrade II
- Shelter Shed in Park 50 Metres South of Lookout FarmhouseGrade II
- Stable and Cartshed 20 Metres East of Avenue Farmhouse NorthGrade II
- Statue of Samson Slaying Philistine in Garden to West of Seaton Delaval HallGrade II
- The Dene CottageGrade II
- The OctagonGrade II
- The Old Vicarage and Attached WallsGrade II
- Turntable Mechanism 20 Metres West of the King's Arms HotelGrade II
- Watch House on Rocky IslandGrade II
- Yard Walls at Avenue Farm NorthGrade II
- Yard Walls With Attached Outbuildings to West of Seaton Delaval HallGrade II
The council’s appraisal
WEBSeaton Delaval Conservation Area AppraisalNorthumberland County Council’s description of the area’s character — what planners look at when you apply.Open on council site ↗Nearby conservation areas
Boundary and listed buildings from Northumberland County Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.