1 Mahlon Avenue Ruislip Data via plota.co.uk

25816/APP/2026/1783 Approved
DemolitionExtensions & alterations

Proposal

Erection of a single storey side and rear extension, parking provisions, all following the removal of the existing rear conservatory, and buildings in the garden. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
17 Jul 2026
✓
Approved
9 Sept 2026

Approved on 9 Sept 2026 · Last checked 9 Sept 2026

Documents

View the documents on the council's website ↗

Site constraints 5

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 Named permitted development rights are withdrawn here.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.
Air quality management area: Hillingdon AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Hillingdon built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. 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.

Work with planning data?

Every application in Hillingdon - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Nearby new applications

11 Sept 2026Pending

SOUTH RUISLIP YOUTH CENTRE VICTORIA ROAD RUISLIP HA4 0JE

Use of the vacant Youth Centre building and land as a day nursery and pre-school...

66408/APP/2026/2199
24 Aug 2026Pending

22 BOURNE AVENUE RUISLIP HA4 6TZ

Erection of a single storey rear extension, a single storey side extension, conv...

80243/APP/2026/2089
14 Jul 2026Approved

7 MAHLON AVENUE RUISLIP

Erection of single storey secondary rear extension to the rear of an existing si...

39971/APP/2026/1754
24 Jul 2026Approved

13 MASSON AVENUE RUISLIP

Conversion of roof to habitable space including a hip to gable end extension, re...

57259/APP/2026/1839

Important details

Council
Hillingdon
Postcode
HA4 6TF
Received
17 Jul 2026
Validated
17 Jul 2026
Ward
SOUTH RUISLIP 2022
Case officer
Show
Target decision
11 Sept 2026
Decision
Approval
Decision date
9 Sept 2026
Agent
Show

How this decision compares

Decided in 54 days from validation, about the council's usual 56 days. 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

Historical activity at this location

12 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
245 WEST END ROAD RUISLIP HA4 6QR
Rear and side Dormer (introduction and enlargement) and amendments to the rear fenestrati…
79838/APP/2025/2333
2023 Withdrawn
16 MAHLON AVENUE RUISLIP MIDDX HA4 6TF
Use of spare bedroom as home office (Application for a Certificate of Lawful Development…
67416/APP/2023/2462
2022 Approved
40 MAHLON AVENUE RUISLIP MIDDLESEX HA4 6TF
Erection of a single storey rear / side extension, and first floor side extension followi…
69158/APP/2022/784
2019 Approved
40 MAHLON AVENUE RUISLIP MIDDLESEX HA4 6TF
Single storey side/rear extension including demolition of existing garage
69158/APP/2019/3612
2019 Approved
20 MAHLON AVENUE RUISLIP HA4 6TF
Single storey side/rear extension involving demolition of existing garage
75051/APP/2019/2799
2019 Approved
40 MAHLON AVENUE RUISLIP MIDDLESEX HA4 6TF
Conversion of roofspace to habitable use to include a rear dormer and 2 front rooflights…
69158/APP/2019/2578
2019 Withdrawn
40 MAHLON AVENUE RUISLIP MIDDLESEX HA4 6TF
Erection of a single storey rear extension, which would extend beyond the rear wall of th…
69158/APP/2019/2642
2019 Approved
13 MAHLON AVENUE RUISLIP HA4 6SY
Partial raising of the roof and conversion of roof space to provide two additional bedroo…
74281/APP/2019/2024
2019 Refused
13 MAHLON AVENUE RUISLIP HA4 6SY
Addition of first floor to include a side dormer
74281/APP/2019/468
2018 Refused
13 MAHLON AVENUE RUISLIP HA4 6SY
Creation of first floor and conversion of roofspace to habitable use to include a side do…
74281/APP/2018/3802
2017 Refused
43 MAHLON AVENUE RUISLIP HA4 6SY
Erection of a single storey rear extension, which would extend beyond the rear wall of th…
41160/APP/2017/2223
2016 Approved
LAND FORMING PART OF 251 WEST END ROAD RUISLIP HA4 6QR
Details pursuant to conditions 3 (Materials), 4 (Landscape Scheme) and 5 (Sustainable Wat…
71218/APP/2016/664
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
Source: MHCLG planning statistics · See full council rankings