Planning application
18 MILL DRIVE RUISLIP HA4 7GL
Works: Extension Loft or dormer Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Erection of a single storey rear extension, installation of a rear dormer, installation of new front facing window, and demolition of rear garden decking.
As published by the council, reference 80144/APP/2026/1542
Application record
- Reference
- 80144/APP/2026/1542
- Type
- Full
- Status
- Undecided
- Received
- 22 Jun 2026
- Validated
- 21 Jul 2026
- Ward
- RUISLIP 2022
- Postcode
- HA4 7GL
Timeline
Dates from the published record
-
22 Jun 2026
Received by Hillingdon
-
21 Jul 2026
Validated
Checked as complete and ready for consideration.
-
3 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 15 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Hillingdon took a median of 57 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
9 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 happens while it is decided
This application is with Hillingdon for determination, against a statutory target of eight weeks. Over the last year Hillingdon decided full applications in a median of 57 days. More in our guide to how long planning decisions take.
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.
Nearby applications
Within 500 metres
-
19 MILL DRIVE RUISLIP HA4 7GL
Proposed installation of solar panels to the side and rear roof slopes, installation of an AC compressor unit to the side elevation.
Granted Full applications 13 docs -
19 BURY STREET RUISLIP HA4 7SX
87% historically approved · decision due ~26 Dec
Installation of solar panels on rear and side of roof and on the existing rear extension
Awaiting decision Extension -
9 SHARPS LANE RUISLIP MIDDLESEX HA4 7JG
Proposed part single and part double storey side and rear extensions to allow for the conversion of the existing property from Use Class C4 (HMO) to Use Class C2 (Care Home) - 18 Bedrooms, with internal and external communal areas, and other spaces required to serve the care home, and associated landscaping, refuse and recycle storage, cycle storage and car parking provisions.
Refused Full applications Extension 31 docs -
41 ST MARGARETS ROAD RUISLIP HA4 7NZ
87% historically approved · decision due ~14 May
Conversion of roof space to habitable use to include raising roof ridge height, erection of side and rear gable loft extension (incorporating a front door canopy), 3 x side rooflights, juliette balcony to rear, and erection of new side window on first floor
Awaiting decision Extension Loft or dormer +2 -
41 ST MARGARETS ROAD RUISLIP HA4 7NZ
Conversion of roof space to habitable use to include hip to gable extension, rear dormer, and 2x sky lights (Application for a Certificate of Lawful Development for a Proposed Development)
Granted Full applications Extension Loft or dormer 8 docs -
41 ST MARGARETS ROAD RUISLIP HA4 7NZ
Part single storey, part two storey front/side extension
Refused Full applications Extension 9 docsSmall domestic
Other full applications
In Hillingdon
-
80210/APP/2026/1925 Granted
33 FLEMMING AVENUE RUISLIP HA4 9LE
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.30 metres, and for which the height of the eaves would be 3.00 metres.
-
79068/APP/2026/1422 Granted
2 COLLEGE DRIVE RUISLIP HA4 8SB
Variation of Condition 2 (Approved Plans), 3 (Materials) of planning permission ref. 79068/APP/2024/2610, dated 10-02-25 (Erection of a single storey extension to the side, erection of a single storey extension to the rear, following the demolition of existing single storey side extension and garage. Installation of 4 front roof lights and amendments to fenestrations including removal of pebble dash and the installation of an Air Source Heat Pump.) to be amended in accordance with drawing numbers C01,C02,C03 & C04 with amendment of the rear element and Condition 3 to be amended so that the front extension elevation remains brick, with the side and rear elevations to be silicone render with stipple finish to match existing traditional render.
-
78325/APP/2026/1804 Granted
1 COPSE CLOSE NORTHWOOD HA6 2XG
Details pursuant to the discharge of Condition 10 (Accessible Housing) of planning permission ref. 78325/APP/2023/2889, dated 19-01-2024 (Erection of a two storey detached dwelling with associated access, parking and amenity space following demolition of existing dwelling.)
-
79711/APP/2026/1801 Granted
132 WHITETHORN AVENUE YIEWSLEY UB7 8LB
Change of use from ground floor office to annex
-
4260/APP/2025/2721 Granted
RUISLIP METHODIST CHURCH ICKENHAM ROAD RUISLIP MIDDLESEX. HA7 7BZ
Amendments to fenestration to include replacement windows on the front elevation and the insertion of a new fire door on the east side elevation.