SE21 8SL lies on Alleyn Park in London. SE21 8SL is located in the Dulwich Wood electoral ward, within the London borough of Southwark and the English Parliamentary constituency of Dulwich and West Norwood. The Sub Integrated Care Board (ICB) Location is NHS South East London ICB - 72Q and the police force is Metropolitan Police. This postcode has been in use since December 1997.


| Easting | 533019 |
| Northing | 172608 |
| Latitude | 51.436861 |
| Longitude | -0.087662 |
| Street | Alleyn Park |
| Town/City | London |
| Country | England |
| Postcode District | SE21 |
Elevation or altitude of SE21 8SL as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 40m | 131ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
| Ward | Dulwich Wood |
|---|---|
| Constituency | Dulwich And West Norwood |
2025 27 AUG £800,000 |
2020 5 AUG £950,000 |
2020 18 MAY £950,000 |
2013 3 DEC £522,000 |
2010 29 APR £699,950 |
2004 16 APR £395,000 |
2003 17 APR £312,000 |
2002 2 AUG £227,000 |
1999 16 FEB £200,000 |
78, ALLEYN PARK, LONDON, SE21 8SL 1998 23 DEC £220,000 |
| Ildersly Grove | Dulwich | 206m |
| West Dulwich Park Hall Road | West Dulwich | 233m |
| Lings Coppice | West Dulwich | 302m |
| West Dulwich Park Hall Road | West Dulwich | 320m |
| South Croxted Road | West Dulwich | 374m |
| West Dulwich Station | 0.5km |
| Sydenham Hill Station | 0.7km |
| Tulse Hill Station | 1.3km |
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
| Median download speed | 15.1Mbps |
| Average download speed | 19.7Mbps |
| Maximum download speed | 32.40Mbps |
| Median upload speed | 1.3Mbps |
| Average upload speed | 2.5Mbps |
| Maximum upload speed | 4.64Mbps |
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |


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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Post Office | 17:30 | 12:00 | 40m |
| Alleyn Park | 17:30 | 12:00 | 74m |
| Croxted Road | 17:30 | 12:00 | 216m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SE21 8SL:
| ITL 1 Code | Name |
|---|---|
| TLI | London |
| ITL 2 Code | Name |
| TLI4 | Inner London - East |
| ITL 3 Code | Name |
| TLI44 | Lewisham and Southwark |
| LAU 1 Code | Name |
| E09000028 | Southwark |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SE21 8SL:
| Code | Name | |
|---|---|---|
| OA | E00019877 | |
| LSOA | E01003951 | Southwark 033E |
| MSOA | E02000839 | Southwark 033 |
| SE21 8BN | Alleyn Crescent | 105m |
| SE21 8ES | Park Hall Road | 106m |
| SE21 8AS | Alleyn Park | 108m |
| SE21 8EU | Ildersly Grove | 145m |
| SE21 8BG | Morkyns Walk | 164m |
| SE21 8SF | Alleyn Park | 172m |
| SE21 8ER | Acacia Grove | 173m |
| SE21 8SW | Croxted Road | 183m |
| SE21 8RR | Glazebrook Close | 231m |
| SE21 8BW | Park Hall Road | 232m |