Planning application
40 HILLSIDE ROAD NORTHWOOD HA6 1QA
Works: Extension Loft or dormer 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
Variation of Condition 2 (Accordance) of planning permission ref. 79279/APP/2025/1974, dated 24-09-2025 (Erection of single storey rear, side and front extension, conversion of roof space to habitable use including the creation of pitched roof over the proposed single storey rear extension by extending the existing ridge with side roof lights and the creation of a rear gable end and conversion of garage to habitable use with a patio) to amend single storey rear and side extension (increased in the width).
As published by the council, reference 79279/APP/2025/2658
Application record
- Reference
- 79279/APP/2025/2658
- Type
- Full
- Status
- Approval
- Decision
- Permitted
- Received
- 14 Oct 2025
- Validated
- 16 Oct 2025
- Decided
- 12 Dec 2025
- Ward
- NORTHWOOD HILLS 2022
- Postcode
- HA6 1QA
Timeline
Dates from the published record
-
14 Oct 2025
Received by Hillingdon
-
16 Oct 2025
Validated
Checked as complete and ready for consideration.
-
12 Dec 2025
Decision issued: Permitted
-
12 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
5 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
Hillingdon granted permission on 12 December 2025, 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 full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
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Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end with new gable end window and front porch (Application for a Certificate of Lawful Development for a Proposed Development).
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Single storey side extension and conversion of roof space to habitable use to include 2 side dormers and conversion of rear of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
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51 STANLEY ROAD NORTHWOOD HA6 1RH
Single storey side/rear extension, single storey rear extension, porch to front and conversion of roof space to habitable use to include 2 side dormers, 1 side roof light and conversion of rear of roof from hip to gable end
Refused Full applications Extension Loft or dormer 13 docsSmall domestic
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79879/APP/2026/1749 Granted
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74889/APP/2026/1363 Granted
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53073/APP/2026/1645 Granted
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80172/APP/2026/1717 Refused
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