Planning application
Kinsbourne House The Common Kinsbourne Green Harpenden Hertfordshire Al5 3Pe
Works: Extension Demolition Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of Lawfulness (proposed) - Removal of the existing hipped roof over the south projection and part demolished east wall. Build of a single storey rear extension between the south projection and the Drawing Room wall to the east. Construct a hip
As published by the council, reference 5/2026/1100
Application record
- Reference
- 5/2026/1100
- Type
- Certificate of Lawfulness - (proposed)
- Status
- Approved
- Decision
- Certificate of Lawfulness Approved
- Received
- 8 Jun 2026
- Validated
- 3 Jul 2026
- Decided
- 26 Aug 2026
- Ward
- Harpenden North & Rural
- Parish
- Harpenden Rural
- Decision by
- Delegated
- Postcode
- AL5 3PE
Timeline
Dates from the published record
-
8 Jun 2026
Received by St Albans
-
3 Jul 2026
Validated
Checked as complete and ready for consideration.
-
24 Jul 2026
Added to PlanIndex
-
2 Aug 2026
Status changed to Under Consideration
Previously Under Consultation.
-
26 Aug 2026
Decision issued: Certificate of Lawfulness Approved
Documents
Plans, drawings, consultee responses and the officer's report
8 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
St Albans granted permission on 26 August 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
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Other lawful development applications
In St Albans
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5/2026/1277 Granted
52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls
Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer
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5/2026/1366 Granted
256 Sandridge Road St Albans Hertfordshire Al1 4Aj
Certificate of Lawfulness (proposed) - Loft conversion with rear dormer & 4 velux to front
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5/2026/1638 Decided
1 Castle Rise Wheathampstead Hertfordshire Al4 8Hx
Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL4 8HX
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5/2026/1621 Decided
9 Ashley Gardens Harpenden Hertfordshire Al5 3En
Certificate of Lawfulness (proposed) - Erection of a fence within boundary of the property
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5/2026/1622 Decided
9 Necton Road Wheathampstead Hertfordshire Al4 8At
Certificate of Lawfulness (proposed) - Dormer to rear elevation to existing bedroom. new window to rear