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.
Section 02
Decision
The appeal is dismissed.
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.
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