18 Mill Drive Ruislip HA4 7GL Data via plota.co.uk

80144/APP/2026/1542 Approved

Proposal

Erection of a single storey rear extension, installation of a rear dormer, installation of new front and rear facing windows, and demolition of rear garden decking and shed (Description Amended) Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
22 Jun 2026
✓
Validated
21 Jul 2026
✓
Approved
28 Sept 2026

Approved on 28 Sept 2026 · Last checked 29 Sept 2026

Site constraints 7

Ruislip Village conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Article 4 direction
Residential extensions. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Scheduled monument about 132 m away: Ruislip motte and bailey
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
Also on the record
2 listed buildings within 150 m of the postcode pin; Inside the Hillingdon built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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 1

Last sold for £427,500 in May 2012. Semi-detached house, freehold.

22 May 2012£427,500New build

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area116 m² (1,249 sq ft)
Energy ratingB (82 out of 100)
PropertySemi-detached house
Built2010
HeatingBoiler and radiators, mains gas
WallsAverage thermal transmittance 0.24 W/m²K

From the energy performance certificate lodged in January 2012, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Hillingdon
Postcode
HA4 7GL
Received
22 Jun 2026
Validated
21 Jul 2026
Ward
RUISLIP 2022
Case officer
Show
Target decision
28 Sept 2026
Decision
Approval
Decision date
28 Sept 2026

How this decision compares

Decided in 69 days from validation, 13 days slower than Hillingdon's median of 56 for demolitions. Approved, as 91% of demolitions here are.

54%decided within 8 weeks
91%approved
200decided in the last year

Plota live figures for demolitions decided by Hillingdon in the last twelve months, from validation. Hillingdon decision record →

Consultation & key dates

Consultation
29 Jul 2026
Comments by
19 Aug 2026
Hillingdon
Planning Authority Score
3.5/10
Below average
#219 of 296 councils
Relevant to this application:
Householder decisions

Hillingdon ranks #194 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (90%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Hillingdon decision statistics
Based on MHCLG data, the year to March 2026
85%
Overall approval rate
Below avg (87%) #208 of 296
90%
Householder approved
Above avg (90%) #191 of 296
58%
Decided in 8 weeks
Below avg (63%) #194 of 296
45%
Extended time limit
Above avg (41%) #190 of 296
61%
Minor dwellings approved
67 decided (1-9 homes)
65%
Change of use approved
17 decided
1,680
Total decisions
255 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.