Appeal 3336869
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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.
Section 02
Decision
The appeal is dismissed.
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.
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.
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
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