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
1storm overflows within 2 km
29hours of spills in 2025 between them (typical neighbourhood: about 36)
6spill events counted
Southern Water
Green Lane Chilworth Ceointo Unnamed Trib Of River Itchen6 spills, 29 hours in 2025
44 planned, approved or being built and 12 running (73 MW between them). Those within 5 km are on the map above.
Rooftop solar
Chandlers Ford - Solar panelsApproved, not yet built · 200 kW
Jun 2022 2.2 km away
Rooftop solar
Southampton General Hospital, Tremona Road - Solar PanelsApproved, not yet built · 250 kW
Feb 2024 2.5 km away
Rooftop solar
Spire Hospital, Chalybeate Close - Solar PanelsApproved, not yet built · 230 kW
May 2024 2.8 km away
Rooftop solar
Grosvenor House & Belmont House, Portswood Road - Solar PanelsApproved, not yet built · 160 kW
Apr 2025 2.8 km away
Rooftop solar
Airways Distribution Park, Wide Lane - Solar PanelsApproved, not yet built · 340 kW
Jun 2023 2.9 km away
Rooftop solar
Airways Distribution Park, Wide Lane, Unit 1 - Solar PanelsApproved, not yet built · 450 kW
Jan 2025 2.9 km away
Rooftop solar
Pei Genesis UK Limited, George Curl Way - Solar PanelsApproved, not yet built · 270 kW
Jan 2023 3.1 km away
Rooftop solar
Cooper Vision, Speedwell Close - Solar PanelsApproved, not yet built · 640 kW
Oct 2024 3.2 km away
Battery storage
Misslebrook Farm, Botley Road - Battery StorageApproved, not yet built · 60 MW
Apr 2024 3.5 km away
Rooftop solar
Unit 2b, School Lane - Solar PanelsApproved, not yet built · 320 kW
Jun 20233.7 km away
Road and street works within 1 km
6 permitted works running now or planned, 2 of them major.
Major
Pine Walk, ChilworthUtility repair and maintenance works · SOUTHERN GAS NETWORKS PLC · Multi-way signals
Sept 2026 to Oct 2026 400 m away
Major
Glen Eyre Road, SouthamptonHighway improvement works · SOUTHAMPTON CITY COUNCIL · Road closure
Sept 2026 to Oct 2026 750 m away
Standard
Chilworth Road, SouthamptonHighway repair and maintenance works · NATIONAL HIGHWAYS · No carriageway incursion
Jan 2027 to Jan 2027 350 m away
Standard
Hadrian Way, ChilworthHighway improvement works · HAMPSHIRE COUNTY COUNCIL · Two-way signals
Oct 2026 to Oct 2026 700 m away
Standard
Glenwood Avenue, SouthamptonUtility repair and maintenance works · SOUTHERN WATER · No carriageway incursion
Oct 2026 to Oct 2026 750 m away
Minor
Bassett Avenue, SouthamptonHighway improvement works · NWP STREET LTD (formerly New World Payphones Ltd) · Lane closure
Jan 2027 to Jan 2027 900 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
Decided
M3 Junction 9 ImprovementHighways · Adjacent to Winnal industrial estate, Winchester, north of Alresford Road B3404
decided May 2024 15.8 km away
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 20.1 km away
Decision
AQUIND InterconnectorElectric Lines · From the UK seaward limit in the English Channel to Lovedean Substation.
application due Q4 2019 26.0 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 Bassett Green: +23% over five years (2020 → 2025).
Council tax list: 0 homes added in the neighbourhood since April 2024.
Population (GP registrations): +4.6% in two years.
Itchen Power, West End - Solar PanelsApproved, not yet built · 200 kW
Jan 2022 4.2 km away
Rooftop solar
Asquith Nursery, David Lloyd Leisure - Solar PanelsApproved, not yet built · 300 kW
Jan 2024 4.2 km away
Running nearest: Grove Solar Park (Phase 1) (solar farm, 5.3 km); Grove Solar Park (Phase 2) (solar farm, 5.3 km); Field House Solar / Hursley Road (solar farm, 6.6 km); Testwood Water Supply Works (solar farm, 6.6 km); Marchwood ERF (energy from waste, 6.7 km).
DESNZ Renewable Energy Planning Database, April to June 2026 (OGL). Projects of 150 kW and over; refused, withdrawn and abandoned ones are left out.