121 Highfield Lane Hemel Hempstead Hertfordshire HP2 5JG Data via plota.co.uk
Proposal
Single storey rear and infill extensions, garage conversion and alterations to front elevation to provide ancillary ground floor annexe. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 3 Dec 2026, from Dacorum's recent extensions.
Documents 13
Statements & assessments 1
Plans & drawings 11
Application forms 1
Site constraints 5
Checked on 16 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.
Building
From the energy performance certificate lodged in February 2025, the latest held for this property. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 14 of the 56-day target. Dacorum usually decides extensions by day 50.
Plota live figures for extensions decided by Dacorum in the last twelve months, from validation. Dacorum decision record →
Public comments
No public comments yet.
8 neighbours consulted · Last counted 23 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15290887
- Planning Portal ref
- PP-15290887
- Neighbours
- 16 Oct 2026
- Consultation
- 16 Oct 2026
- Comments by
- 6 Nov 2026
- Env. assessment
- No
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%).
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.
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121 Highfield Lane Hemel Hempstead Hertfordshire HP2 5JG
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Comments are open until 6 Nov 2026