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Kings Arms Hotel with Coach House to EastKings Arms Hotel with Coach House to East · Photo: Rob Farrow · CC BY-SA 2.0
C+History Grade
History of Seaton Sluice · Historic England

17 listed buildings, 3 of them Grade II*

On the Historic England list, all of them stand inside Seaton Sluice’s built-up area, 57 for every 10,000 residents. Of the listed buildings in Seaton Sluice, 14 are Grade II. We have photos of 6 of its listed buildings. 11% of its homes were built before 1919. Seaton Sluice grades C+ for history: #10 of 20 in Northumberland.

3Grade II*
Listed buildings
17
57 per 10,000 residents
Grade I
0
exceptional interest
Grade II*
3
more than special interest
Scheduled monuments
0
nationally important sites
Homes built before 1919
11%
typical UK town 15%
In pictures

Seaton Sluice in 6 photos

Nearly every Grade I and II* building, photographed. Tap a photo to step through them full screen.

Outbuilding 60 Metres South West of Fort HouseOutbuilding 60 Metres South West of Fort HouseGrade II* listedWatch House on Rocky IslandWatch House on Rocky IslandGrade II listedPrimrose CottagePrimrose CottageGrade II listedThe OctagonThe OctagonGrade II listedThe Delaval ArmsThe Delaval ArmsGrade II listed+1See all photos

Photos from Wikimedia Commons and Geograph, copied to our own server, each credited to its photographer with its licence; names open the building’s page or its official list entry.

The map

Where Seaton Sluice’s history is

Every Grade I and II* building, monument and historic park.

Boundary Wall Around Fort House with Attached Structures, Grade II*Fort House, Grade II*Outbuilding 60 Metres South West of Fort House, Grade II*
Grade II*

Hover a dot for its name; tap one with a photo to open it.

17 listed buildings by grade
0 Grade I3 Grade II*14 Grade II

Historic England lists buildings in three grades: Grade I for buildings of exceptional interest (about 2.5% of all listed buildings), Grade II* for particularly important buildings of more than special interest (about 5.8%), and Grade II for buildings of special interest (about 91.7%). Listing protects the whole building, inside and out.

Every entry on the National Heritage List for England whose point lies inside the ONS 2022 built-up-area boundary. One list entry can cover a terrace or a group of buildings.

Grade II*

The 3 Grade II* listed buildings in Seaton Sluice

Particularly important buildings of more than special interest. 1 is photographed. Each opens its own page, with the official list entry.

Grade II

14 Grade II listed buildings

Most listed buildings are in this grade, which covers buildings of special interest. Open any building to read its official list entry.

All 14 Grade II listed buildings, A to Z
Basin, Slip and Outlet Walls at Seaton SluiceGarden Wall to North of Number 10Kings Arms Hotel with Coach House to EastPrimrose CottageRemains of Sluice Gate at West End of the CutRetaining Walls Below Road, To East of King's Arms HotelSeaton Sluice and Old Hartley War MemorialSewer Gas Lamp Outside 21 Hartley SquareThe Delaval ArmsThe Dene CottageThe OctagonTurntable Mechanism 20 Metres West of the King's Arms HotelWatch House on Rocky Island2 Lamps Standards, At Junction with Links Road and 80 Metres to East
Conservation areas

1 conservation area covers 14% of Seaton Sluice

Areas the council protects as a whole: demolition and changes to how buildings look need consent, and trees are protected.

Seaton Delaval11 ha
11 hain conservation areas, of 81 ha inside the built-up area.

12 of the 17 listed buildings stand in one.

Historic England’s conservation areas layer, supplied by councils (incomplete in places, so a page fact, never graded). Hectares are the part of each area inside the built-up area.

How the list grew

More than half of Seaton Sluice’s listed buildings were added in one year, 1987

The year each building now on the list was first listed.

1987 · 13
19501960197019801990200020102020

The first 1 entry was listed in 1950. 13 came in 1987, in the national resurvey of the 1970s and 80s. Only 1 has been added in the last 15 years.

History Grade

Seaton Sluice grades C+ for history

Protected heritage and the age of the town’s homes, against all UK towns.

Protected heritage, for its size and in all (20 points, 68 per 10,000 residents)More than 56% of UK towns
Homes built before 1919 (11%)More than 27% of UK towns

Two measures, each ranked against every UK town of 1,000 or more, with protected heritage counting twice as much as the age of homes. Protected heritage counts each listed building by its grade (Grade I three points, II* two, II one), each scheduled monument and battlefield two, and each registered park or garden by its grade; it is ranked both per 10,000 residents and as a total, so a village with one fine church doesn’t outrank a historic city. The second measure is the share of homes built before 1919, from the Valuation Office Agency’s council tax records. History is a character grade: it describes the town and isn’t part of the overall grade.

Neighbours

Listed buildings in the places around Seaton Sluice

TownPeopleListedGrade IHistory
Seaton Sluice2,957170C+
New Hartley1,76400D−
Seaton Delaval8,012100C−
Whitley Bay36,876290B−
Seghill2,79900D−
Blyth39,731320C+
Shiremoor6,96510D−
Backworth4,48350D
In brief

Seaton Sluice in brief

The official list counts 17 listed buildings in Seaton Sluice, including Outbuilding 60 Metres South West of Fort House. A conservation area protects part of it. More than half went on the list in a single year, 1987: 13 of 17. Beyond that, like most towns its size, it has no Grade I building; per resident it sits near the middle of UK towns; and 11% of its homes were built before 1919, close to the 15% in the typical UK town.

Questions about Seaton Sluice’s history

How many listed buildings are there in Seaton Sluice?

Historic England lists 17 buildings inside Seaton Sluice’s built-up area: 0 Grade I, 3 Grade II* and 14 Grade II.

How many conservation areas are there in Seaton Sluice?

1, covering about 11 hectares of the town. The largest is Seaton Delaval.

When were Seaton Sluice’s buildings listed?

The first in 1950; the most, 13, in 1987.

How old are the homes in Seaton Sluice?

11% of homes were built before 1919 and 27% before 1940, from the Valuation Office Agency’s council tax records (March 2025).

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The National Heritage List for England is the official, up-to-date register of all nationally protected historic buildings and sites in England; check an entry on Historic England’s website before relying on it.

Sources: Historic England, National Heritage List for England (listed buildings, scheduled monuments, registered parks and gardens, battlefields, World Heritage Sites), October 2026, inside the ONS 2022 built-up-area boundary · Valuation Office Agency, Council Tax: stock of properties by build period (31 March 2025) · TownRatings grades: our own summary of the data, ranked against UK towns only · Historic England conservation areas (supplied by local planning authorities; October 2026). All under the Open Government Licence v3.0.

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.