Powered land · Windsor and Maidenhead, England
74 ha site near Knowl Hill Primary substation, Windsor and Maidenhead (INSPIRE polygon 31390620)
A candidate site of 74.1 ha in Windsor and Maidenhead, England: one HM Land Registry INSPIRE title polygon. It lies 0.52 km from the Knowl Hill Primary substation (Southern Electric Power Distribution plc), which has 4.63 MVA of demand headroom and none for generation.
Owner, grid capacity and planning status on request.We do not publish owners. Ask us and we look up the registered owner of this title at HM Land Registry, the headroom and connection queue at the nearest substation and the local plan and planning applications, and find out whether the site is available.
Request owner, grid and planningFacts
Every value links to its source. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Area | 74.1 ha (the area of its INSPIRE polygon, the indicative extent of a registered title) | Rare Context powered-land sites · ODbL 1.0 · checked 24 Oct 2026 |
| INSPIRE polygon | 31390620 (its id in the HM Land Registry INSPIRE Index Polygons) | HM Land Registry INSPIRE Index Polygons · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Location | Windsor and Maidenhead, England | Rare Context powered-land sites · ODbL 1.0 · checked 24 Oct 2026 |
| Coordinates | 51.5106, -0.7977 (a point on the polygon) | Rare Context powered-land sites · ODbL 1.0 · checked 24 Oct 2026 |
| Nearest substation | Knowl Hill Primary (0.52 km, polygon edge to the substation's mapped point) | Rare Context powered-land sites · ODbL 1.0 · checked 24 Oct 2026 |
| Substation voltage | 33 kV (levels 33, 11 kV) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Substation operator | Southern Electric Power Distribution plc | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Demand headroom at the substation | 4.63 MVA | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Generation headroom at the substation | 0 MW | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (offtake) at the substation | None (green on the heat map) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (feed-in) at the substation | Full (red on the heat map, limited by upstream thermal capacity) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
The polygon shows where the title lies, not its legal extent: HM Land Registry notes that the extent of a title can only be established from the title plan.
How it compares
#12 of 66 sites in Windsor and Maidenhead and #1,229 of 4,848 in the United Kingdom by site score. Larger than 77% of the sites in Windsor and Maidenhead. Closer to its substation than 88% of them.
| Part | This site | Points | Of |
|---|---|---|---|
| Area | 74.1 ha | 20.7 | 30 |
| Distance to the substation | 0.52 km | 22.2 | 30 |
| Demand headroom at the substation | 4.63 MVA | 4.6 | 40 |
| Site score | 48 | 100 |
How the site score works in the United Kingdom · Search sites in Windsor and Maidenhead
Nearby sites on the same substation
14 other sites have Knowl Hill Primary as nearest substation and would compete for its capacity.
- 89 ha site near Knowl Hill Primary substation, Windsor and Maidenhead0.08 km · score 59
- 212 ha site near Knowl Hill Primary substation, Windsor and Maidenhead1.22 km · score 46
- 95 ha site near Knowl Hill Primary substation, Windsor and Maidenhead1.24 km · score 43
- 28 ha site near Knowl Hill Primary substation, Windsor and Maidenhead (INSPIRE polygon 31312602)0.19 km · score 39
- 30 ha site near Knowl Hill Primary substation, Wokingham0.33 km · score 37
- 72 ha site near Knowl Hill Primary substation, Windsor and Maidenhead1.29 km · score 35
- 74 ha site near Knowl Hill Primary substation, Windsor and Maidenhead (INSPIRE polygon 60942233)1.48 km · score 33
- 40 ha site near Knowl Hill Primary substation, Windsor and Maidenhead0.78 km · score 33
- 29 ha site near Knowl Hill Primary substation, Windsor and Maidenhead0.72 km · score 31
- 38 ha site near Knowl Hill Primary substation, Windsor and Maidenhead1.12 km · score 28
- 33 ha site near Knowl Hill Primary substation, Wokingham1.01 km · score 28
- 33 ha site near Knowl Hill Primary substation, Windsor and Maidenhead1.3 km · score 23
Data on this page
- This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. HM Land Registry INSPIRE Index Polygons, Open Government Licence v3.0.
- Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026. ONS Open Geography: Local Authority Districts, Open Government Licence v3.0.
- Rare Context. Rare Context powered-land sites, ODbL 1.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.