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Official casework recordDismissedCurrent release

Appeal 3276989

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

4 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 conversion of the existing outbuilding to an ancillary annex.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Main Issue

    The main issue is whether the development is of a use and form appropriate for its back garden location and the implications for the living conditions for nearby occupiers in terms of noise and disturbance.

  3. Section 04

    Reasons

    The background to the appeal proposal is material to any appraisal of the application’s merits. The building was initially approved on 27 April 2020 under application ref. DM2020/00540: ‘Lawful Development Certificate: [name] or Development’ for the erection of a single storey detached outbuilding to rear garden.

    The internal layout in that application indicated the use to be for a gym, office, storage, and a w.c, all of which are incidental uses to the dwelling as they do not constitute primary living accommodation. This approval was given because the building and its use met the criteria set out in Class E of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

    A planning statement submitted on behalf of the appellant says that whilst the original intention was to use the building for a gym, office, and storage he was out of the country during the entire build process and ‘the builder took it upon himself to build an ancillary annexe instead of its original use’. However, not only is the layout quite different to that approved, including two en-suite bedrooms and a central kitchen / living area, but the internal finish and facilities are to a high quality domestic standard uncharacteristic of an outbuilding for uses including a gym and storage.

    Because of these major discrepancies from the building approved as permitted development and their cost implications, I can give the appellant’s explanation little or no credence. And if, as the grounds of appeal claim, the building was initially used as an office for the applicant and a study for his son ceasing at the end of January 2021, it would have been in the accommodation as now built in the form of self-contained living space or in the final stages of its construction.

    Nor is the appellant’s explanation consistent with the erection of a fence to provide the outbuilding with its own private garden area separate from the house garden, together with a footpath from the outbuilding’s entrance to the gate to [address] at the side of the dwelling. And despite enforcement action to secure the removal of the fence, the concrete posts remain in position and the fence panels are still stored on site.

    Whilst these observations establish the overall context for the Council’s refusal of the appeal proposal, they also support the view in the officer’s report that neither the internal layout and facilities, nor the size of the outbuilding are appropriate for a building genuinely ancillary to the house. The facilities would provide complete self-containment, whilst the new boundary fence and paved footway additionally enable independent access without entering the main dwelling. Moreover, their construction is one of a permanent form which is entirely at odds with the appellant’s case that the outbuilding would be solely ancillary to No. 16 so that the large family could in future live as an entity but with adequate living space and facilities.

    As regards size, the outbuilding has a built footprint of 81.5m2 and the host dwelling’s ground floor equivalent is less at 59m2 . And in combination with the two separate bedrooms rather than one, this scale and layout of the accommodation would seem both unsuitable and in excess of any reasonable requirement for ancillary space to be used by the appellant’s elderly parents.

    I also consider that the fairly tight knit development pattern in the locality does not suggest that a large outbuilding used for residential accommodation, albeit ancillary to the house, would avoid the potential for noise and disturbance. The comings and goings between the outbuilding and the house and the late-night internal lighting for the outbuilding’s habitation are likely to be more of a problem than for a building used on an incidental basis as a gym, a home office and storage. In this regard, although there are a couple or so letters of support for the application, neighbours in [address] have written to express their concerns.

    The grounds of appeal refer to the current separation of family members, with some abroad and the difficulties of travelling caused by Covid-19. However, whilst I sympathise with these problems, the pandemic is unlikely to be an ongoing factor that in itself would justify the development, which if approved would in all likelihood be a permanent use.

    I have noted the other examples of ancillary outbuildings in Sutton and the various references to planning policy support for family accommodation. I acknowledge that an outbuilding, suitably regulated by the conditions suggested by the Council in the Appeal Questionnaire (plus a condition 2 precluding garden severance), can in principle allow different generations of a family to be accommodated at a property. As is the case here, an outbuilding is normally intended for one or more grandparents (the so called ‘granny annex’), and to avoid an abuse of the planning system it usual for a local Planning Authority to be fully satisfied of a Bona fide need before permission is granted.

    From the evidence before me in this appeal I do not consider this has been demonstrated at [site address] . The size and layout of the outbuilding are also unsuitable and there are indications that the facilities could be used by third parties, as already been alleged in neighbour objections. I am also concerned in respect of the potential for noise and disturbance for nearby residents.

    Accordingly, the appeal proposal would not be in accordance with the requirements of Policies 13d), 28 & 29 of the Sutton Local Plan 2016 -2031 adopted in 2018 and paragraph 130f) of Government policy in the National Planning Policy Framework 2021.

    For the reasons explained above and considering all other matters raised, 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 204No official casework-database value to compare
    Extracted decision date · page 1
    4 October 2021Matches the official casework database
    Extracted site visit dates
    20 September 2021 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3276989
Application reference
DM2021/00650
Lead case reference
Not recorded
Planning authority
London Borough of Sutton
Planning authority code
E09000029

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
81 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 June 2021
Valid date
14 June 2021
Start date
2 September 2021
Planning authority decision date
26 May 2021
Appeal decision date
4 October 2021

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
No
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
4227
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:25
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21