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
No monitored sewer storm overflows within 2 km (England only).
Northwood College, Maxwell Road - Solar PanelsApproved, not yet built
Jul 2023 6.2 km away
Road and street works within 1 km
6 permitted works running now or planned, 4 of them major.
Major, planned
Station Road, WatfordUtility asset works · AFFINITY WATER - C · Road closure
Nov 2026 to Nov 2026 250 m away
Major
St Albans Road, WatfordDisconnection or alteration of supply · UK POWER NETWORKS EASTERN & LONDON · Lane closure
Oct 2026 to Oct 2026 450 m away
Major
Milton Street, WatfordHighway improvement works · HERTFORDSHIRE COUNTY COUNCIL · Road closure
Nov 2026 to Nov 2026 700 m away
Major
Garfield Street, WatfordHighway improvement works · HERTFORDSHIRE COUNTY COUNCIL · Road closure
Nov 2026 to Nov 2026 750 m away
Standard
St Albans Road, WatfordUtility asset works · CADENT GAS LIMITED · Multi-way signals
Oct 2026 to Oct 2026 950 m away
Minor
Hempstead Road, WatfordUtility repair and maintenance works · AFFINITY WATER - C · No carriageway incursion
Oct 2026 to Oct 2026 850 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-application
SDC M40 CampusGenerating Stations · The site of the project is located in Buckinghamshire, England. It is approximately 2km to the west of Gerrards Cross, approximately 2.5km east of Beaconsfield and approximately 1.5km north of Hedgerley. The site comprises land immediately to the south of the A40 Oxford Road and immediately to the north of the M40 motorway. It has a history of landfill activities and is currently operated by Veolia for the landfilling of inert building waste (albeit the site no longer accepts any forms of waste).
application due January 2027 15.8 km away
Pre-application
Heathrow WestAirports · Heathrow Airport and land to the north-west and west of Heathrow Airport
New-home postcodes with fewer than 5 homes are counted above but not listed. 28 postcodes nearby had new homes completed in the last two years.
Rooftop solar
The Tropical Marine Centre, Solesbridge Lane - Solar PV PanelsApproved, not yet built · 240 kW
Nov 2023 6.3 km away
Rooftop solar
Northwood Health And Racquet Club, Ducks Hill Road - Solar Pv PanelsPlanning application in · 330 kW
Jul 2023 6.4 km away
Running nearest: Woodside Leisure Centre - Solar PV Panels (rooftop solar, 3.6 km); Mount Vernon Hospital - Solar Panels (rooftop solar, 6.2 km); Elstree Film And TV Studios, Shenley Road - Solar Panels (rooftop solar, 9.1 km); Aylett Nurseries - Solar Panels (rooftop solar, 9.8 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.
Dams and Reservoirs · From Mogden Sewage Treatment Works to the River Thames upstream of Teddington Weir
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.