Planning application
28 Sibley Avenue Harpenden Hertfordshire Al5 1Hf
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
First floor rear extension, raising of the roof height of the existing flat-roofed side extension, and construction of a new lean-to roof over the existing single-storey rear extension
As published by the council, reference 5/2026/0559
Application record
- Reference
- 5/2026/0559
- Type
- Householder
- Status
- Under Consideration
- Decision
- PENDING
- Received
- 20 Mar 2026
- Validated
- 14 Apr 2026
- Ward
- Harpenden South
- Parish
- Harpenden Town
- Decision by
- Delegated
- Postcode
- AL5 1HF
Timeline
Dates from the published record
-
20 Mar 2026
Received by St Albans
-
14 Apr 2026
Validated
Checked as complete and ready for consideration.
-
24 Jul 2026
Added to PlanIndex
-
9 Aug 2026
Status changed to Under Consultation
Previously Under Consideration.
-
31 Aug 2026
Status changed to Under Consideration
Previously Under Consultation.
Documents
Plans, drawings, consultee responses and the officer's report
28 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 documentsAfter the decision
St Albans has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
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First floor side extension over existing single storey side projection, with new pitched roof to match existing roof form and front elevational treatment in character with existing building. Garage conversion to habitable accommodation. Alterations to exi
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Single storey rear extension, loft conversion, external material changes to dwelling, porch window added to front elevation
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In St Albans
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5/2026/1089 Granted
25 High Firs Crescent Harpenden Hertfordshire Al5 1Nb
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5/2026/0989 Granted
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5/2026/0631 Granted
28 Wroxham Way Harpenden Hertfordshire Al5 4Pp
Proposed two storey side and rear extension and single storey rear extension, alterations to patio, boundary treatments and landscaping.
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5/2026/1265 Granted
43 Granby Avenue Harpenden Hertfordshire Al5 5Qp
Following demolition of store rooms etc, proposed two-storey side and rear extensions, single-storey side and rear extensions along with internal and external alterations, new openings and chimney removal
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5/2026/1152 Granted
43A Moreton End Lane Harpenden Hertfordshire Al5 2Ha
Addition of flat roof dormers to the first-floor ensuite bathroom on both the front and rear elevations. New utility room added to the rear of the garage space.