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
9storm overflows within 2 km
837hours of spills in 2025 between them (typical neighbourhood: about 36)
222spill events counted
Yorkshire Water
Halifax Copley Stwinto River Calder And Hebble Brook89 spills, 430 hours in 2025
1.7 km away
Yorkshire Water
Bailiff Bridge Csointo Not Matched In Ea Consents Database62 spills, 311 hours in 2025
1.6 km away
Yorkshire Water
Dark Lane No 2 Csointo Tributary Of The River Calder32 spills, 40 hours in 2025
1.8 km away
Yorkshire Water
Dene Place No 2 Csointo Hebble Brook25 spills, 38 hours in 2025
1.9 km away
Yorkshire Water
King Street Csointo Hebble Brook7 spills, 11 hours in 2025
1.1 km away
Yorkshire Water
Shibden Park Csointo Red Beck4 spills, 6 hours in 2025
1.8 km away
Yorkshire Water
Sedburgh Road Csointo Hebble Brook2 spills, 1 hours in 2025
700 m away
Yorkshire Water
Sso At Farrow Mill Lane, Halifaxinto Hebble Brook1 spills, 0 hours in 2025
Higgin Lane, HalifaxNew service connection · NORTHERN POWERGRID (YORKSHIRE) PLC · Some carriageway incursion
Oct 2026 to Oct 2026 400 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.
application due November 2026 16.9 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 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.