| Postcode | NE25 0JS | 
|---|---|
| Post Town | Whitley Bay | 
| Nearest station | Cramlington (6 km) | 
| Bus stops | Elsdon Avenue shops (NW) Astley High School (SE) Cheswick Road (N) Cheswick Road (S) Astley High School (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 15 View | 
| Known addresses | 1 Thornhill Close, Seaton Delaval 4 Thornhill Close, Seaton Delaval 6 Thornhill Close, Seaton Delaval 9 Thornhill Close, Seaton Delaval 11 Thornhill Close, Seaton Delaval 12 Thornhill Close, Seaton Delaval 13 Thornhill Close, Seaton Delaval | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 55.064214 | |
|---|---|---|
| Longitude | -1.522077 | |
| Easting | 430622 | |
| Northing | 574520 | |
| Grid reference | NZ306745 | |
| UTM reference | 30U 594385 6102935 | |
| what3words | banter.clocked.clapper | |
| FixPhrase | crusader lyricist squeegee trombone | |
| Plus code | 9C7W3F7H+M5 | |
| Altitude | 31 metres (103 feet) | |
| Sunrise (today) | 7:09 | |
| Sunset (today) | 16:32 | |
| Distance away | ||
| Distance to sea | 4.1 KMs (2.6 miles) | 
| Parish | Seaton Valley | E04012897 | 
|---|---|---|
| Ward | Holywell | E05016119 | 
| Unitary Authority | Northumberland | E06000057 | 
| County | Northumberland | E11000021 | 
| Constituency (2024) | Cramlington and Killingworth | E14001183 | 
| MP | Emma Foody | Labour | 
| Police force | Northumbria | |
| Water company | Northumbrian Water | |
| NUTS/ITL 3 | Northumberland | |
| NUTS/ITL 2 | Northumberland, Durham and Tyne & Wear | |
| NUTS/ITL 1 | North East | |
| Country | England | E92000001 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 37 | |
|---|---|---|
| Households (2011) | 14 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Larger rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural town and fringe | |
| Built up area (2024) | Seaton Delaval | E63007147 | 
| Census output area (2021) | E00139616 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | Northumberland 032C | E01027434 | 
| Lower layer super output area (2011) | Northumberland 032C | E01027434 | 
| Middle layer super output area (2021) | Seaton Delaval & Seghill | E02005719 | 
| Middle layer super output area (2011) | Seaton Delaval & Seghill | E02005719 | 
| Travel to work area | Newcastle | E30000245 | 
| Average property price in Newcastle upon Tyne | £193,693 | 
|---|---|
| Annual change | 2.8% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 6 Thornhill Close, Seaton Delaval | Detached (leasehold) | Oct 2023 | £295,000 | 
| 9 Thornhill Close, Seaton Delaval | Detached (freehold) | Oct 2020 | £285,000 | 
| Detached (freehold) | Jun 2014 | £249,950 | |
| Detached (leasehold) | Jun 2014 | £249,950 | |
| Detached (leasehold) | Apr 2006 | £210,000 | |
| 13 Thornhill Close, Seaton Delaval | Detached (leasehold) | Oct 2014 | £243,000 | 
| 4 Thornhill Close, Seaton Delaval | Detached (leasehold) | Mar 2014 | £235,000 | 
| Detached (leasehold) | Oct 2001 | £86,750 | |
| 1 Thornhill Close, Seaton Delaval | Detached (freehold) | May 2009 | £160,000 | 
| Detached (leasehold) | Jun 2006 | £228,000 | |
| Detached (leasehold) | May 2000 | £81,500 | |
| 12 Thornhill Close, Seaton Delaval | Detached (leasehold) | Dec 2003 | £179,950 | 
| 11 Thornhill Close, Seaton Delaval | Detached (freehold) | Dec 1999 | £82,000 |