Powered land · Ealing, England
10 ha brownfield site at OIS7a Former GSK site, Greenford Green, Ealing
A brownfield site of 10.5 ha in Ealing, England, on the brownfield land register as previously developed land. It lies 0.84 km from the Greenford Primary substation (Southern Electric Power Distribution plc), which has no demand headroom and 69.6 MW 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Owner, grid capacity and planning status on request.We do not publish owners.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 site at the land register, the headroom and connection queue at the nearest substation and its planning history, 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 | 10.5 ha (the area its register gives) | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Site from | Brownfield land register (England) | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Owner type | Private | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Planning permission | Granted | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Address | OIS7a Former GSK site, Greenford Green | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Permit date | 1 Sept 2017 (full-planning-permission, issued by London Borough of Ealing) | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Register reference | OIS7a (planning authority London Borough of Ealing) | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Register entries | Brownfield site: OIS7a Former GSK site, Greenford Green, Brownfield site: OIS7a Former GSK site, Greenford Green (one site listed 2 times at one point) | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Location | Ealing, England | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Coordinates | 51.5481, -0.3421 (the register's point for the site) | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Nearest substation | Greenford Primary (0.84 km, register point to the substation's mapped point) | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Substation voltage | 66 kV (levels 66, 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 | 0 MVA | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Generation headroom at the substation | 69.6 MW | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (offtake) 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 |
| Congestion (feed-in) at the substation | None (green on the heat map) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Large generation within 10 km | 144 MW of oil (1 plant of 50 MW or more in operation) | Rare Context powered-land sites · ODbL 1.0 · checked 25 Oct 2026 |
| Water stress | High (40–80%) (score 3.4 of 5, withdrawals 52.2% of renewable supply) | WRI Aqueduct 4.0 · CC BY 4.0 · checked 25 Oct 2026 |
The register gives a point and an area, not an outline: the distance runs from that point, so the site's edge can be closer to the substation.
How it compares
#26 of 33 sites in Ealing and #5,368 of 6,229 in the United Kingdom by site score. Larger than 73% of the sites in Ealing. Closer to its substation than 18% of them.
| Part | This site | Points | Of |
|---|---|---|---|
| Area | 10.5 ha | 1.6 | 30 |
| Distance to the substation | 0.84 km | 17.4 | 30 |
| Demand headroom at the substation | 0 MVA | 0 | 40 |
| Site score | 19 | 100 |
How the site score works in the United Kingdom · Search sites in Ealing
Nearby sites on the same substation
2 other sites have Greenford Primary as nearest substation and would compete for its capacity.
- 42 ha site near Greenford Primary substation, Ealing0.88 km · score 28
- 36 ha site near Greenford Primary substation, Ealing1.34 km · score 19
- Sites in Ealing33
- Sites in the United Kingdom6,352
- Greenford Primarysubstation
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Supported by National Energy SO Open Data. NESO GIS boundaries for GB DNO licence areas, NESO Open Data Licence.
- 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.
- Contains public sector information licensed under the Open Government Licence v3.0. planning.data.gov.uk, 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.
- Kuzma, S., M.F.P. Bierkens, S. Lakshman, T. Luo, L. Saccoccia, E. H. Sutanudjaja, and R. Van Beek. 2023. Aqueduct 4.0: Updated Decision-Relevant Global Water Risk Indicators. Technical Note. Washington, DC: World Resources Institute. doi.org/10.46830/writn.23.00061. WRI Aqueduct 4.0, CC BY 4.0.