82 Herlwyn Avenue Ruislip Data via plota.co.uk
Proposal
Conversion of loft space to habitable use to include a rear dormer, 2no. front facing roof lights, conversion of roof from hip to gable end with new gable end window. (Application for a Certificate of Lawful Development for a Proposed Development) Data via plota.co.uk
Application progress
Approved on 15 Jun 2026 · Last checked 6 Sept 2026
Site constraints 4
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.
Every application in Hillingdon - and every UK council - as a live feed, an API, or a bulk CSV export.
Other new applications on this street
24 CROSIER WAY RUISLIP HA4 6HF
Proposed loft conversion including hip to gable change, formation of new rear do...
59 HERLWYN AVENUE RUISLIP
Demolition of existing conservatory, erection of a single-storey rear extension,...
184 HERLWYN AVENUE RUISLIP HA4 6HJ
Erection of a single storey front extension and amendments to the fenestration, ...
Nearby new applications
24 CROSIER WAY RUISLIP HA4 6HF
Proposed loft conversion including hip to gable change, formation of new rear do...
32 STAFFORD ROAD RUISLIP
Conversion of roof space to habitable use to include a rear dormer, 1x front roo...
71 SEAFORD CLOSE RUISLIP
Erection of single storey side extension.
Important details
- Council
- Hillingdon
- Postcode
- HA4 6HF
- Received
- 20 Apr 2026
- Validated
- 20 Apr 2026
- Ward
- RUISLIP MANOR 2022
- Case officer
- Show
- Target decision
- 15 Jun 2026
- Decision
- Approval
- Decision date
- 15 Jun 2026
- Agent
- Show
How this decision compares
Decided in 56 days from validation, about the council's usual 54 days. Approved, as 92% of extensions here are.
Plota live figures for extensions decided by Hillingdon in the last twelve months, from validation. Hillingdon decision record →
Historical activity at this location
5 nearby applications on record - archival context, not part of the live application.
Nearby activity
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%).
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82 Herlwyn Avenue Ruislip
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