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
3storm overflows within 2 km
562hours of spills in 2025 between them (typical neighbourhood: about 36)
56spill events counted
Thames Water
Dorking Stw (Storm)into River Mole23 spills, 296 hours in 2025
800 m away
Thames Water
Coach Road Cso On Stonebridge Sewerinto The River Mole26 spills, 218 hours in 2025
1.8 km away
Thames Water
Castle Gardens Spsinto Mole7 spills, 48 hours in 2025
10 planned, approved or being built and 2 running (6 MW between them). Those within 5 km are on the map above.
Rooftop solar
Bucher Municipal, Curtis Road - Solar PanelsApproved, not yet built · 200 kW
Feb 2023 1.7 km away
Hydro
Betchworth WeirApproved, not yet built · 200 kW
Jul 2019 3.6 km away
Rooftop solar
Surrey Hills Business Park, Sheephouse Lane - Solar PanelsApproved, not yet built · 200 kW
Sept 2023 5.1 km away
Solar farm
Little Flanchford Farm, Flanchford Road - Solar EnergyPlanning application in · 20 MW
Nov 2024 5.9 km away
Battery storage
Barnett Wood Lane - Battery StorageApproved, not yet built · 98 MW
Sept 2025 8.2 km away
Battery storage
Woodhatch Place, Cockshot Hill - Micro Energy Storage SystemApproved, not yet built · 200 kW
Oct 2024 8.4 km away
Solar farm
Cobham Road, Bookham - Solar FarmApproved, not yet built · 50 MW
May 2026 9.1 km away
Solar farm
Duxhurst Farm, Duxhurst Lane - Solar FarmApproved, not yet built
Dec 2023 9.5 km away
Battery storage
Duxhurst Farm, Duxhurst Lane - Solar FarmApproved, not yet built
Dec 2023 9.5 km away
Battery storage
Rushett Lane - Battery Storage SystemApproved, not yet built · 30 MW
Apr 2025 9.9 km away
Running nearest: Dorking Battery Energy Storage System (battery storage, 2.6 km); Cobham Motorway Service Area - Solar Photovoltaics (rooftop solar, 9.8 km).
Road and street works within 1 km
1 permitted works running now or planned.
Standard
High Street, DorkingNew service connection · UK POWER NETWORKS SOUTH EASTERN · Some carriageway incursion
Oct 2026 to Oct 2026 650 m away
DfT Street Manager permits (OGL), England. Dates are the planned ones; works often finish early or overrun.
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 Dorking South: +12% over five years (2020 → 2025).
Council tax list: 50 homes added in the neighbourhood since April 2024.
Population (GP registrations): +1.8% in two years.