503 Whippendell Road Watford WD18 7QB Data via plota.co.uk
Proposal
Lawful Development Certificate for existing use of hip to gable loft conversion including rear dormer, roof extension and x2 front roof lights Data via plota.co.uk
Application progress
Approved on 3 Sept 2026 · Delegated Decision · Last checked 9 Sept 2026
Documents 10
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 5
Site constraints 3
Checked on 6 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 2
Last sold for £615,000 in August 2024. Semi-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 March 2024, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Watford
- Application type
- Lawful Development Certificate
- Postcode
- WD18 7QB
- Received
- 3 Aug 2026
- Validated
- 3 Aug 2026
- Ward
- Holywell
- Case officer
- Show
- Target decision
- 28 Sept 2026
- Decision
- Grant Lawful Development Certificate
- Decision date
- 3 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- 4D Planning
Public comments
No public comments yet.
Last counted 9 Sept 2026
Consultation & key dates
- Alt. reference
- PLP-00005895 PLANDA PORTAL
- Env. assessment
- No
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Watford is faster than most councils at deciding householder applications, ranking #41 out of 296. Only 21% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Watford is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
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.
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503 Whippendell Road Watford WD18 7QB
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