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Appeal 3339039

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

10 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

change of use for an existing rear garden annex to allow the use from a prayer room to a habitable space.

  1. Section 02

    Decision

    The appeal is allowed, and planning permission is granted for change of use for an existing rear garden annex to allow the use from a prayer room to a habitable space at [site address] , Hayes, [postcode] in accordance with the terms of the application, Ref 58207/APP/2023/3460, and the plans submitted with it, subject to the following conditions:

    The development hereby permitted shall begin no later than three years from the date of this decision.

    The development hereby permitted shall be carried out in accordance with drawing nos: 883 01, 883 02 and 883 03.

    The building hereby permitted shall not be used or occupied at any time other than for purposes ancillary to the residential use of the dwelling known as [site address] , [postcode] .

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by a representative of the Inspector whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

  3. Section 04

    Main Issue

    The main issues are: • Whether the proposal would constitute a separate unit of residential accommodation; and, • The future occupier’s personal circumstances and need for the proposed development. Appeal Planning Officer APP/R5510/D/24/3339039

  4. Section 05

    The occupation of the residential accommodation

    No. [site address] (No. 10) comprises one half of a pair of two-storey semi-detached dwellings located on a residential street. An existing single storey outbuilding that was granted planning permission to be used as a prayer space is currently being used for ancillary residential accommodation in connection with No.10 located to the rear of the dwelling and is accessed either through the house or via a path to the side of No.10. The Council has indicated that they are investigating the use of the existing outbuilding as an independent residential unit through their enforcement powers.

    The proposed plans indicate that the accommodation would have a separate entrance door and comprise a bedroom, bathroom, living room space and cupboards for storage in an ‘open plan’ format. The intended occupier of the annex, a relative of the appellant, would be reliant on the main dwelling for the use of cooking facilities.

    I note the Council’s assessment that the existing residential accommodation incorporated kitchen facilities. However, the proposed floorplan indicates that no such provision is to be made in the development moving forward. Nevertheless, due to the nature of the accommodation to be provided the Council has concluded that the proposal would be capable of occupation as a new dwelling and have assessed it on this basis. They state that it would conflict with Policy DMHD 2 iii) and [name] of the London Borough of Hillingdon Local Plan Part 2 Development Management Policies Adopted Version 16 January 2020 (the Local Plan) which advises against annexes having a separate entrance, while they must be connected internally to the existing property.

    The appellant has made it clear that the proposal is for an annex that would be used ancillary to the main dwelling and would not be occupied as an independent dwelling. The evidence clearly sets out that future occupiers would be reliant on the main dwelling for cooking facilities as these facilities are not proposed within the annex, and whilst I acknowledge that cooking facilities have existed previously, there is no compelling evidence presented to the contrary to suggest that these would be retained or re-provided within the proposed layout.

    I recognise that allowing the appeal could result in pressure for the building to be used as a separate dwelling at some point in the future. However, this would require planning permission in its own right, and I am satisfied that a condition could be implemented to ensure that the occupation of the unit would remain ancillary to the occupation of the main dwelling, thus securing appropriate occupation of the unit in the future.

    The proposed development would be contrary to some of the detailed technical aspects of Local Plan Policies DMHD 1 and DMHD 2 of the Local Plan in relation to the provision of primary accommodation and the possession of a separate entrance. However, on the basis of the information supplied, the proposal would not constitute a separate dwelling and can be secured by condition in such a manner as to ensure future occupation accords with this intent. Appeal Planning Officer APP/R5510/D/24/3339039

  5. Section 06

    Personal circumstances

    In determining this appeal, I have had due regard to the Public Sector Equality Duty (PSED) contained in section 149 of the Equality Act 2010, which sets out the need to eliminate unlawful discrimination, harassment and victimisation, and to advance equality of opportunity and foster good relations between people who share a protected characteristic and people who do not share it. Disability is a relevant protected characteristic to which the PSED applies.

    Supporting information has been provided outlining that there is a family member with additional medical needs. Details of to the familial circumstances have been provided which have led to the need for additional accommodation. The appellant has provided a letter confirming the various aspects of the medical issues pertinent to the case from the local NHS Trust.

    I have carefully considered the submissions in respect of the specific needs of the appellant’s family, and I recognise the importance that the development and the increased floorspace plays in meeting these needs. Furthermore, it is difficult to visualise how these needs might be addressed satisfactorily at the appeal site without presenting a significant compromise in the living arrangements of the family to the detriment of the individual, or without resulting in more significant impacts from an alternative quantum or form of development.

    Whilst my conclusions in respect of the main issue in any event weigh in support the proposed development, I nevertheless attach significant weight to the need to address the specific circumstances as presented in this instance in accordance with the PSED, and which must therefore weigh in further support of the development.

  6. Section 07

    Other Matters

    The Council has expressed concerns over the potential impact of overlooking from windows into the garden of No. [site address] , as well as noise and general disturbance from an ‘unfettered’ use of the accommodation. However, whilst these might be matters to assess were the building to be occupied as an independent unit, for the reasons set out in the main issues the occupation will be ancillary to that of the main dwelling. A similar conclusion is also reached in respect of the provision of private amenity space.

  7. Section 08

    Conditions

    I have considered the Council’s suggested conditions in light of the advice of the Framework and Planning Practice Guidance. In addition to time limit and approved plans conditions, both of which are necessary and reasonable in the interests of certainty and good planning, an occupancy condition as suggested by the appellant to ensure occupation and use as ancillary to that of No.10 is also necessary in order to ensure it is occupied and used as proposed.

  8. Section 09

    Conclusion and Recommendation

    Despite the conflict with elements of DMHD 1 and DMHD 2 of the Local Plan, the specific circumstances of the proposed development would not amount to a separate dwelling for the reasons set out above. Furthermore, I am satisfied that the impact of dismissing the appeal would have a disproportionate impact on the individual with a protected characteristic in this instance. Consequently, Appeal Planning Officer APP/R5510/D/24/3339039 the needs highlighted under the PSED outweigh the limited policy harm identified.

    For the above reasons, and subject to the conditions as listed, the appeal is allowed.

  9. Section 10

    Inspector’s Decision

    I have considered all the submitted evidence and my representative’s report and on that basis the appeal is allowed.

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 376No official casework-database value to compare
    Extracted decision date · page 1
    11 June 2025Matches the official casework database
    Extracted site visit dates
    17 September 2024 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3339039
Application reference
58207/APP/2023/3460
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
30 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
Allowed
Decision category
Allowed
Received date
19 February 2024
Valid date
2 March 2024
Start date
29 April 2024
Planning authority decision date
18 January 2024
Appeal decision date
11 June 2025

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
70941
First seen
20 August 2026 at 14:25
Last seen
20 August 2026 at 16:28
Removed from release
Not recorded
Record created
20 August 2026 at 14:25
Record updated
24 August 2026 at 16:21