20 Castle Hill Avenue Berkhamsted Hertfordshire HP4 1HJ Data via plota.co.uk
Description
Two storey front, side and rear extension. Roof extensions. New front bay window and porch canopy. Solar panels. New and altered fenestration. Data via plota.co.uk
Last checked
Associated applications 2
- Two storey front, side and rear extension. Roof extensions. New front bay window and porch canopy. Solar panels. New and altered…
Site constraints 4
Checked on 15 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 1
Last sold for £1,075,000 in May 2023. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in November 2022, the latest held for this property. The building may have changed since. View the certificate
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Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Dacorum is faster than most councils at deciding householder applications, ranking #50 out of 296. Only 22% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (91%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.