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
13storm overflows within 2 km
1,577hours of spills in 2025 between them (typical neighbourhood: about 36)
259spill events counted
Yorkshire Water
Halifax Copley Stwinto River Calder And Hebble Brook74 spills, 784 hours in 2025
1.2 km away
Yorkshire Water
Halifax Copley Stwinto River Calder And Hebble Brook89 spills, 430 hours in 2025
600 m away
Yorkshire Water
Halifax Copley Stwinto River Calder And Hebble Brook38 spills, 245 hours in 2025
1000 m away
Yorkshire Water
Elland Lowfields Spsinto River Calder38 spills, 89 hours in 2025
2.0 km away
Yorkshire Water
King Street Csointo Hebble Brook7 spills, 11 hours in 2025
2.0 km away
Yorkshire Water
Copley Village Spsinto River Calder1 spills, 8 hours in 2025
1.7 km away
Yorkshire Water
Park Road Csointo River Calder1 spills, 5 hours in 2025
2.0 km away
Yorkshire Water
Hoults Lane Csointo Black Brook5 spills, 2 hours in 2025
36 planned, approved or being built and 2 running (28 MW between them). Those within 5 km are on the map above.
Battery storage
Stainland Road, Salterhebble - Battery Storage FacilityApproved, not yet built · 25 MW
Sept 2021 1.2 km away
Rooftop solar
Eureka, Discovery Road - Solar PanelsApproved, not yet built · 180 kW
Apr 2024 1.6 km away
Rooftop solar
Sainsburys, Wade Street - Solar PanelsApproved, not yet built · 840 kW
Jun 2026 2.2 km away
Battery storage
Lowfields Energy Storage ProjectApproved, not yet built · 50 MW
Mar 2023 2.3 km away
Rooftop solar
Lowfields Business Park, Lowfields Way - Solar PanelsApproved, not yet built · 620 kW
Aug 2023 2.3 km away
Battery storage
Ashday Hall Farm, Ashday Lane - Battery Energy StorageApproved, not yet built · 65 MW
Mar 2025 2.4 km away
Rooftop solar
Spire Elland Hospital - Solar PanelsApproved, not yet built · 180 kW
Apr 2025 2.4 km away
Rooftop solar
Ryburn Valley High School, St Peters Avenue - Solar PanelsApproved, not yet built · 260 kW
Sept 2024 5.4 km away
Rooftop solar
Yorkshire Building Society, Plover Road - Solar PanelsApproved, not yet built · 170 kW
Jul 2023 6.0 km away
Battery storage
Holmfield - Battery Energy StorageBeing built · 250 kW
Mar 2023 6.0 km away
Road and street works within 1 km
4 permitted works running now or planned, 1 of them major.
Major
Godfrey Road, HalifaxHighway improvement works · CALDERDALE METROPOLITAN BOROUGH COUNCIL · Road closure
Oct 2026 to Oct 2026 550 m away
Standard
Higgin Lane, HalifaxNew service connection · NORTHERN POWERGRID (YORKSHIRE) PLC · Some carriageway incursion
Oct 2026 to Oct 2026 750 m away
Minor
Green Park Avenue, HalifaxUtility repair and maintenance works · YORKSHIRE WATER · No carriageway incursion
Oct 2026 to Oct 2026 650 m away
Minor
Dudwell Lane, HalifaxUtility repair and maintenance works · YORKSHIRE WATER · No carriageway incursion
Oct 2026 to Oct 2026 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
Pre-application
Calderdale Energy ParkGenerating Stations · Walshaw Moor, on either side of the three Walshaw Dean Reservoirs in the Metropolitan Borough of Calderdale, West Yorkshire.
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 Southowram & Siddal: +37% over five years (2020 → 2025).
Council tax list: 0 homes added in the neighbourhood since April 2024.
Population (GP registrations): -1.1% in two years.