Appeal 3367545
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
8 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
a single storey rear extension.
Section 02
Decision
The appeal is dismissed.
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.
Section 04
Preliminary Matters
Under Article 3(1) and Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended (the Order), planning permission is granted for the enlargement of a dwellinghouse subject to limitations and conditions.
Where an application is made for a determination as to whether prior approval is required for development which exceeds the limits in paragraph A.1(f) but is allowed by paragraph A.1(g) to Part 1, paragraph A.4(3) provides that the local planning authority may refuse the application where it considers that the proposed development does not comply – or that the developer has provided insufficient information to enable the authority to establish whether the proposed development complies with the conditions, limitations or restrictions that are applicable to such permitted development.
[name].4(7) to Part 1 states that where any owner or occupier of any adjoining premises objects to the proposed development, the prior approval of the local planning authority is required as to the impact of the proposed development on the amenity of any adjoining premises.
The decision notice includes references to the National Planning Policy Framework (the Framework), policies of the development plan and the London Borough of Barking and [name] and Alterations Supplementary Planning Document (2012) (SPD). The principle of development is established through the grant of permission by the Order, and I am required to assess the proposal as a prior approval application as set out within the parameters of the Order. Regard can be given to the Framework, the development plan policies, and the SPD insofar as they are material considerations, however they are not in themselves determinative.
Section 05
Background and Main Issue
An objection to the proposed development was received from the owner or occupier of an adjoining premises. As a result, the prior approval of the local planning authority was required. Prior approval was refused due to the effect of the proposed development on the amenity of the adjoining property, no. [address], with particular regard to sunlight and daylight.
The main issue is therefore whether or not prior approval should be granted having regard to the effect of the proposed development on the amenity of the adjoining premises.
Section 06
Reasons for the Recommendation
The appeal property is a two-storey end of terrace residential dwelling constructed on an approximate west to east axis, meaning the rear elevations of the terrace and their gardens face approximately east. No. 258, adjacent to the north, has a clear glass rear conservatory extension and is separated by an ordinary fence boundary treatment. [name]. 258 and the appeal property have good outlook directly over their own rear gardens and No 258 also has good daylight and sunlight entering the rear extension due to its predominantly clear glazed construction.
The proposal would introduce a single storey L-shaped rear extension with 3.65 metres (m) depth along the shared boundary with No.258, which would be a small distance beyond the rear extension at No. 258. There would be a setback of 2.44m, and the remainder of the proposal would be at a depth of 6m. The eaves height would be 3m, which would comply with the limits of the Order in paragraph A.1 (i). However, that would be a significant height above the existing boundary treatment.
The L-shaped design attempts to minimise the disruption to daylight and sunlight; however, due to the positional relationship directly south of No.258, in combination with the height, projection and proximity of the proposal, there would be harmful overshadowing and a resulting reduction in both daylight and sunlight to the clear glazed rear extension and the kitchen.
I acknowledge that the appellant has attempted to design a proposal that is not oppressive or visually intrusive and has attempted to comply with Council Policies. The 3.65m element of the proposal along the boundary with No. 258 would align, in part, with guidance within the SPD regarding depth from the rear elevation. However, the overall depth of the proposal would be 6m which does not comply with paragraph 5.3.2 (a) of the SPD.
In addition, and whilst by itself it is not a determinative factor, the guidance within the SPD at paragraph 4.2.3 seeks to ensure that the positioning of extensions does not overshadow neighbouring dwellings by considering the scale of the extension and the positioning in relation to clear glass extensions such as conservatories. Given the height, projection and proximity, the proposal would have an adverse effect on the rear glass extension and would be contrary to guidance.
Number [address] (No. 260) has been brought to my attention. It has a similar depth rear extension along the boundary with No. 258. However, I have not been provided with any substantive detail regarding that development and therefore I cannot be certain whether that scheme was granted under prior approval; if it was an application determined in accordance with the development plan; or whether it even has planning permission at all. In this regard I cannot be certain that No. 260 is a comparable scheme to the subject appeal. Even if I had that detail, No. 260 is located adjacent to and north of No. 258. For the reasons outlined, No. 260 is materially different to the subject appeal and therefore I afford it little weight.
Two appeals have been brought to my attention. The first1 was an appeal against the refusal to grant planning permission which requires development to be assessed in accordance with the development plan unless material considerations indicate otherwise. That is different to an appeal against the refusal to grant prior approval required under the Order. In the subject appeal the principle of the development is established by the Order, and the provisions therein do not require regard be had to the development plan. I therefore differentiate that appeal and afford it limited weight.
The second appeal2 was materially different to the subject appeal in that No. 9 had a south facing rear elevation. In the subject appeal the rear elevation faces east and is subject to materially different conditions. As such I differentiate that appeal and afford it little weight.
I acknowledge that the proposal would provide additional living space for the appellant and their family members. However, this is not a relevant factor in the consideration of whether to grant prior approval.
Furthermore, whilst the openness of more than half of the garden of No. 258 would be unaffected by the proposal and there would not be a sense of enclosure, this would not justify the harm found above.
I therefore conclude that the proposed development would have an unacceptable impact on the amenity of adjoining premises.
Section 07
Conclusion and Recommendation
For the reasons given above and having had regard to all other matters raised, I recommend that the appeal should be dismissed.
Section 08
Inspector’s Decision
I have considered all the submitted evidence and my representative’s report and on that basis the appeal is dismissed. [planning inspector] INSPECTOR 1 APP/W5780/D/l5/3136737 2 APP/W5780/D/21/326998
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 145No official casework-database value to compare
- Extracted decision date · page 1
- 10 February 2026Matches the official casework database
- Extracted site visit dates
- 25 November 2025 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3367545
- Application reference
- 25/00567/PRIEXT
- Lead case reference
- Not recorded
- Planning authority
- London Borough of Barking and Dagenham Council
- Planning authority code
- E09000002
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
- 3. Refused prior approval of permitted development rights
- 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
- Not recorded
- Number of residences
- 0
- Site in Green Belt
- No
- Agricultural holding
- Not recorded
- 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
- 12 June 2025
- Valid date
- 12 June 2025
- Start date
- 1 July 2025
- Planning authority decision date
- 13 May 2025
- Appeal decision date
- 10 February 2026
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
- 84101
- First seen
- 20 August 2026 at 14:25
- Last seen
- 20 August 2026 at 16:29
- Removed from release
- Not recorded
- Record created
- 20 August 2026 at 14:25
- Record updated
- 24 August 2026 at 16:21