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Official casework recordDismissedCurrent release

Appeal 3336869

Public case and site metadata stored from the official casework database, including fields that were empty in the source release.

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Official decision document

The decision, section by section

6 sections

Read the development description and the Inspector’s text from the official decision PDF in source order. Source headings are retained where available. Personal and contact details are removed by an automated privacy filter; this is source material, not Rules for You analysis.

Section 01

Development description

use of the outbuilding at rear of the garden as bedroom ancillary to the main house.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Preliminary matters

    The planning permission1 granted for the erection of the single storey outbuilding subject of this appeal was implemented, and I saw that the building is substantially complete and used for storage. A recent appeal2 against the Council’s refusal to allow the use of the outbuilding as a habitable room for guests was dismissed. These aspects of the planning history are material to my considerations.

    The appeal site is located within the Greenway Conservation Area (CA).

    As part of my assessment, as well as visiting the appeal site, I also visited the rear garden of [address], to the rear of the appeal site.

  3. Section 04

    Main issues

    The main issues are the proposal’s compatibility with development plan policy and its effect on the character of the locality.

  4. Section 05

    Reasons

    Policy DMHD 2 of the Hillingdon Local Plan: [name] – Development Management Policies (DMP2), which I regard as the most relevant policy for this appeal, is specifically directed to outbuildings within residential gardens. It provides that proposals for outbuildings will need to meet several criteria. 1 Ref 19772/APP/2021/1787 dated 28 June 2021 2 [name]/R5510/D/23/3319518 dated 5 September 2023

    As planning permission was granted for the erection of the outbuilding, it appears that the Council was satisfied that two of the criteria were met. In order to ensure compliance with the policy’s third & fourth criteria the Council imposed the following condition in granting permission: The outbuilding hereby approved shall only be used for the purpose(s) stated on the application form and approved drawings and shall not be used for purposes such as a living room, bedroom, kitchen, study, as a separate unit of accommodation or for any business purposes.

    Within 18 months of the date of the permission, and with the outbuilding having been erected, the appellant sought, in effect, to challenge that condition and the relevant policy by proposing that the outbuilding be used as a habitable room for guests. That application was refused permission by the Council, and the subsequent appeal was dismissed.

    Within 2 months of the appeal’s dismissal the appellant sought again to challenge the condition by proposing that the outbuilding be used as a bedroom ancillary to the main dwelling. His application was refused by the Council, resulting in this appeal.

    The fourth criterion of the relevant policy provides that ‘primary living accommodation such as a bedroom, bathroom or kitchen will not be permitted’, within outbuildings. The justification for this is provided in the supporting text to the policy, which says that: ‘The Council will aim to safeguard the character and appearance of an area and the amenity of local residents from inappropriate development, such as ‘beds in sheds’.

    There is therefore little doubt in my mind that the current proposal conflicts with the relevant policy. The appellant’s brief grounds of appeal say that he ‘would like to make better use of the outbuilding’ and that ‘use as bedroom is to be used entirely for the benefit of the main house and for the family’.

    Whilst noting that it is not the appellant’s intention to create a separate dwelling, there is insufficient justification to convince me to depart from the provisions of the development plan especially in circumstances where the outbuilding was erected recently in full knowledge of the restriction on its use imposed by the Council, in accordance with its policy. My colleague Inspector on the previous appeal remarked that a condition designed to restrict the use of the outbuilding to that applied for would prove difficult to enforce. I share the thrust of that observation in this case.

    Judging from my observations at the site visit this is a pleasant residential area where properties and gardens are generally well maintained. I saw some other outbuildings in nearby gardens, but there is no suggestion that these were not used for their intended, incidental purposes in accordance with policy. To my mind, the introduction of living accommodation into the outbuilding would alter the feel and character of the area to its detriment. Accordingly, the character of the locality and the CA would not be enhanced or preserved.

    I therefore conclude that the proposal would conflict with aspects of policy DMHD 2 of DMP2 and would harm the character of the CA. There is insufficient reason to persuade me that a departure from the provisions of statutory policy is justified. 2

  5. Section 06

    Other matters

    The Council has referred to other development plan policies but those which I have relied on are considered the most relevant in the context of this appeal.

    I have also considered and taken account of the comments made by local residents.

    All other matters raised in the representations have been taken into account, but none is of such strength or significance as to outweigh the considerations that led me to my overall conclusions.

Planning inspector and document dates

The official casework attribution is grouped under a one-way keyed hash and shown only by its local identifier. Decision-letter dates and page references are extracted by fixed first-page rules and checked against that authoritative record.

  • Appeal Decision

    Extracted inspector · page 1
    Inspector attribution ID 2949No official casework-database value to compare
    Extracted site visit dates
    11 April 2024 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3336869
Application reference
19772/APP/2023/3232
Lead case reference
Not recorded
Planning authority
London Borough of Hillingdon
Planning authority code
E09000017

Casework details

The casework, procedure, development and linking details supplied by the official record.

Casework type
Householder (HAS)
Procedure
Written Representations
Development type
Householder developments
Appeal type reason
1. Refused planning permission
Appeal reason
Refusal
Type detail
Unknown
Jurisdiction
Transferred
Link status
Not Linked

Site and development

Published appeal-site measurements and planning designations, without the withheld precise location fields.

Site area
Not recorded
Floor space
23 m²
Number of residences
0
Site in Green Belt
No
Agricultural holding
No
Affects setting of a listed building
Not recorded
Historic building grant made
Not recorded
Relates to a conservation area
Not recorded
Flooding is an issue
Not recorded
Site within an AONB
Not recorded
Site within an SSSI
Not recorded

Decision and dates

The published outcome and every imported case date.

Official decision
Dismissed
Decision category
Dismissed
Received date
14 January 2024
Valid date
14 January 2024
Start date
8 February 2024
Planning authority decision date
20 December 2023
Appeal decision date
22 April 2024

Case administration

Published recovery, call-in, costs and enforcement information for this case.

Redetermined
No
Bespoke
No
Date recovered
Not recorded
Date not recovered or derecovered
Not recorded
Call-in date
Not recorded
Costs applied for
Not recorded
Enforcement grounds count
Not recorded
Enforcement grounds
Not recorded

Source and catalogue history

When this record appeared in the rolling official release and when the catalogue stored it.

Source
Planning Inspectorate casework database
Source data system
Horizon
Dataset status
Current release
Catalogue record ID
49894
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:27
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21