Spotted when a home's energy certificate shows at least 15 m² (and 15%) more floor area than an earlier one. Only homes with two certificates show up, so the real number is higher. A busy street suggests extensions get permission here; check the council's planning register for the details.
Storm overflows within 2 km
2storm overflows within 2 km
2hours of spills in 2025 between them (typical neighbourhood: about 36)
6spill events counted
Southern Water
Wicor Mill Lane Portchester Ceointo Portsmouth Harbour5 spills, 1 hours in 2025
800 m away
Southern Water
Cow Lane Portchester Ceointo Portsmouth Harbour1 spills, 1 hours in 2025
48 planned, approved or being built and 6 running (126 MW between them). Those within 5 km are on the map above.
Rooftop solar
Trafalgar Wharf Hamilton Road - Solar PanelsApproved, not yet built · 700 kW
May 2022 1.2 km away
Rooftop solar
Castle View Academy, Allaway Avenue - Solar PanelsApproved, not yet built · 180 kW
Jun 2026 2.0 km away
Rooftop solar
Range Superstore, Gunners Way - Solar panelsApproved, not yet built · 430 kW
Aug 2024 3.1 km away
Rooftop solar
Range Superstore, Gunners Way - Solar PanelsApproved, not yet built · 420 kW
Aug 2024 3.1 km away
Rooftop solar
Mountbatten Centre, Twyford Avenue - Solar PanelsApproved, not yet built · 270 kW
May 2023 3.3 km away
Rooftop solar
Lakeside Business ParkBeing built · 5 MW
Aug 2023 3.6 km away
Battery storage
Lakeside Business ParkBeing built · 2 MW
Aug 2023 3.6 km away
Battery storage
Bus Depot, Gosport Road - Battery Energy StorageApproved, not yet built
Aug 2024 3.7 km away
Rooftop solar
David Lloyd Club, The Boardwalk - Solar PanelsApproved, not yet built · 270 kW
Oct 2023 3.7 km away
Rooftop solar
Portsmouth International Port - Solar PanelsBeing built · 1 MW
Jun 2023 3.9 km away
Rooftop solar
Road and street works within 1 km
2 permitted works running now or planned, 2 of them major.
Major
The Keep, FarehamUtility repair and maintenance works · SOUTHERN GAS NETWORKS PLC · Give and take
Aug 2026 to Dec 2026 950 m away
Major
Jubilee Road, FarehamRemedial works · PORTSMOUTH WATERWORKS COMPANY · Road closure
Oct 2026 to Oct 2026 950 m away
DfT Street Manager permits (OGL), England. Dates are the planned ones; works often finish early or overrun.
Major infrastructure projects within 30 km
Pre-examination
Hampshire Water Transfer and Water Recycling ProjectDams and Reservoirs · The project is located in Hampshire, South East England, extending from Havant on the south coast, to Otterbourne near Winchester. The proposed Water Recycling Plant would be located off Harts Farm Way in Havant.
application due in May 2026 3.9 km away
Decision
AQUIND InterconnectorElectric Lines · From the UK seaward limit in the English Channel to Lovedean Substation.
application due Q4 2019 10.8 km away
Decided
M3 Junction 9 ImprovementHighways · Adjacent to Winnal industrial estate, Winchester, north of Alresford Road B3404
decided May 2024 28.6 km away
Planning Inspectorate list of nationally significant infrastructure projects (roads, railways, energy, water, waste), October 2026 (OGL). Each is placed at one point, usually the middle of the site; long schemes run well beyond it.
Transport schemes within 20 km
None on our list yet. We're starting with recently opened and under-construction rail schemes.
The longer view
Like-for-like prices in Portchester South East: +21% over five years (2020 → 2025).
Council tax list: 0 homes added in the neighbourhood since April 2024.
Population (GP registrations): -0.9% in two years.