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Official casework recordDismissedCurrent release

Appeal 3286910

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Official decision document

The decision, section by section

11 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

the retention of outbuilding to rear of property as an annex to main house.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by an Appeal Planning Officer whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

  3. Section 04

    Procedural Matters

    The application was submitted retrospectively and therefore the appeal has been considered on that basis.

    There was a correspondence between the Council and the appellant regarding the description of the development. For the purpose of this appeal, the description put forward on the application form has been used.

  4. Section 05

    [name]

    The main issues of the development are: • the impact on the character and appearance of the area; and, • Whether the use of the outbuilding as primary living accommodation would provide suitable living arrangements, having regard to the living conditions of future occupiers and the aims of the development plan in that regard.

  5. Section 06

    Reasons for the Recommendation

    The appeal site is a two-storey semi-detached dwelling with generous front and rear curtilage. The outbuilding, which is the subject of this appeal, is situated at the end of the rear curtilage and is accessed via the side of the dwelling. The application seeks retrospective permission to retain the outbuilding as an annex to the main house.

  6. Section 07

    Character and Appearance

    The outbuilding is situated within the rear garden of No. [site address] , a semi-detached dwelling within an attractive tree lined street. There is a prevailing feeling of spaciousness on account of the gaps between dwellings and the mature front and rear gardens which add a sense of greenery. The rear gardens on this side of the street back onto the railway line which also has associated greenery along its verge. Thus, the overall feel is of an attractive and verdant residential environment. With a limited number of exceptions, including the structure that is subject to this appeal, outbuildings are of modest scale such that they do not dominate or erode the spacious character of the area.

    The single storey development has a flat roof and white render finish, with three windows and a set of double doors on the front elevation. Though the design is simple, the scale and fenestration is similar to that of a self-contained dwelling, and this challenges the dominance of the main dwelling. Although the property benefits from a generous garden it is comparatively long in relation to its width. The outbuilding would extend across the entire width and take up a substantial proportion of the rear section of the space. Therefore, despite the size of the curtilage, it is a dominant and incongruous feature.

    The Brent Residential Extensions and Alterations SPD2 (SPD), adopted 2018, provides guidance with regard to the size of outbuildings and, though this is generalised advice, and a degree of flexibility should be applied, the outbuilding is more than double the suggested size. Though the outbuilding is situated to the rear of the curtilage it is visible from neighbouring properties, as well as the railway track. Due to its design and size, it is harmful to the character and appearance of the area

    The appellant has provided examples of similar schemes along [address], notably immediately next-door at [address]. However, the planning status of these examples has not been confirmed and it is not clear if they benefit from planning permission. In any event, such large outbuildings with residential style fenestration are not so prevalent that they are integral to the character of the area. As described above, the prevailing pattern remains one of generous gardens in mature landscaping with modest outbuildings. Due to its size and design, the building contrasts incongruously in that setting.

    For the reasons given above, the development is harmful to the character and appearance of the area. Therefore, it does not comply with Policy DMP 1 of the London Borough of Brent Local Plan Development Management Policies (DMP), adopted 2016 and Policy CP17 of the London Borough of [name] (CS), adopted 2010. Together these Policies seek to resist development that is unacceptable in terms of design, scale or size and does not respect the setting of existing dwellings. Furthermore, as mentioned above, the development fails to comply with the size guidance in the SPD.

  7. Section 08

    Use

    Policy DMP 18 (DMP) states that planning permission will only be granted for outbuildings that will not be residential accommodation or do not support the increased occupation of a dwelling. Furthermore, the SPD specifically states that outbuildings should not include any form of primary accommodation such as bedrooms, bathrooms/shower rooms, toilets, or kitchens.

    The outbuilding does not possess a private entrance and the appellant has expressed that they do not wish to use the outbuilding as residential accommodation, although they do accept that it has been used by non-family members in the past and information provided by the Council indicates that it may have been let as an independent unit of occupation. The building provides primary accommodation, including a bathroom, bedroom, kitchen, and living room and therefore contains all of the facilities required for day to day living, albeit those services are connected to the main dwelling. As such, the use is not incidental to the use of the original dwelling but provides additional primary accommodation.

    A condition could be attached to restrict use to ancillary purposes, and a legal agreement has been signed by the appellant to that effect. The appellant maintains that the building would be used by family members as occasional space away from the home or by friends visiting the property. However, if that is the case, it is not clear why the building would need to be of such a scale or why it would need the full range of facilities including living room and kitchen. Details regarding precisely who would use it and to what extent are somewhat vague. Even with the suggested condition and undertaking a family member, or members, could use the annex and spend considerable time within the building given the facilities are available for them to eat, sleep and live.

    Such facilities would increase the intensity of primary occupation at the site by allowing family members to occupy the space, potentially freeing up associated space in the main dwelling. The structure has reduced the usable garden space and provides an unattractive outlook from the main dwelling, for the reasons described in the first main issue. The building itself contains no windows on three sides and is single aspect with a restricted outlook for occupiers who may well spend a significant amount of time within the building. Consequently, the proposal is the type of accommodation that policy DMP 18 and the SPD specifically seek to resist and does not represent a suitable form of accommodation having regard to the living conditions of occupiers of the site.

    The appellant has provided several examples of outbuildings, both within the borough of Brent and elsewhere. Based on the evidence before me, it is not clear that any of these examples contain kitchens. The examples provided from elsewhere, such as Blackpool and Barnsley, bear limited relevance to this case given that they fall within the remit of a different planning authority and are not subject to the same Policy measures. The size and design of the nearby examples is broadly comparable, and it is acknowledged that 115 and [address] are subject to certificates of lawfulness. However, details of internal use has not been provided. Therefore, these examples have been given limited weight and do not outweigh the clear policy conflict arising from the proposal.

    For the reasons given above, the development does not comply with [name] 1 and DMP 18 of the DMP. Policy DMP 1 requires development to complement the locality in terms of location, use and design. Policy DMP 18 specifically resists outbuildings that will be used as primary residential accommodation.

  8. Section 09

    Other Matters

    It is understood that the development provides a number of private benefits with regard to overflow accommodation for visitors and a study space for children, and limited weight is given to these matters. However, they do not outweigh the harm identified and such benefits could be provided by a different scheme that does not cause the harm outlined above.

    Reference has been made to a potential fall-back scenario of a building that could be constructed under permitted development rights. However, outbuildings are only permitted under Class E, Part 1 of Schedule 2 of the Town and Country Planning (General Permitted Development) Order 2015 (as amended) (the GPDO) where they are for a purpose ‘incidental’ to the enjoyment of the dwellinghouse. As explained in the Government’s Permitted Development Rights for Householders – Technical Guidance (2019), incidental uses cover structures such as sheds and garages but not the provision of additional primary living accommodation which would be an extension of the main residential use as opposed to being incidental to it.

    Whilst an outbuilding not providing primary accommodation could in theory be constructed, it is not clear why the appellant would erect such a large structure for an undefined ‘incidental’ purpose or that such a large space would be needed for occasional use by family members. Accordingly, it is not clear that a similar outcome could be achieved by utilising permitted development rights and I attach limited weight to any suggested fall-back position.

  9. Section 10

    Conclusion and Recommendation

    The proposal would not accord with the Development Plan when it is considered as a whole and there are no material considerations that would outweigh that conflict and the harm that has been identified. For the reasons given above, I recommend the appeal should be dismissed.

  10. Section 11

    Inspector’s Decision

    I have considered all the submitted evidence and the Appeal Planning Officer’s report and on that basis the appeal is dismissed.

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 211No official casework-database value to compare
    Extracted decision date · page 1
    8 March 2022Matches the official casework database
    Extracted site visit dates
    2 February 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3286910
Application reference
21/2571
Lead case reference
Not recorded
Planning authority
London Borough of Brent
Planning authority code
E09000005

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
Planning Appeals - Full
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
Not recorded
Number of residences
1
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
15 November 2021
Valid date
15 November 2021
Start date
9 December 2021
Planning authority decision date
1 October 2021
Appeal decision date
8 March 2022

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
11933
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:26
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21