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24256/APP/2025/2828

Full application at 21 DERWENT AVENUE ICKENHAM, Hillingdon. View planning documents, track the decision and get email alerts on updates.

Enriching application data
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Council recordsAppealsFlood risk
Permitted
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Conversion of roof space to habitable use to include hip to gable extension, rear dormer, and 3 x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)

24256/APP/2025/2828

Small
Full

21 DERWENT AVENUE ICKENHAM

Submitted8 Nov
Validated
Consultation
Target
Decided6 Jan
8 weeks typical decision time in Hillingdon80% of full applications approved

This is a full planning application for a dormer extension at 21 DERWENT AVENUE ICKENHAM. Hillingdon has handled 4,983 applications of this type and approves 80% of them, typically deciding them in 56 days. This one was decided in 59 days, 3 days longer than Hillingdon's median. There are no previous applications recorded at this address. In the past year there have been 78 applications across ICK/HAM & S HF/D 22.

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Application Details

Reference
24256/APP/2025/2828
Address
21 DERWENT AVENUE ICKENHAM
Local Authority
Hillingdon
Application Type
Full
Scale / Size
Small
Decision Status
Permitted

Applicant & Agent

Planning Application Dates

Date Decided
6 January 2026
Date Submitted
8 November 2025

Planning Decision

Publicity

Appeal

Additional Information

Coordinates
51.567540, -0.454792

Source: Hillingdon