Appeal 3374691
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Official decision document
The decision, section by section
9 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
erection of single storey front porch and single storey rear extensions, hip to gable and rear dormer roof extension with installation of 2nos. front rooflights to facilitate loft conversion, alterations to roof of first floor outrigger extension and internal alterations.
Section 02
Decision
The appeal is dismissed.
Section 03
Preliminary Matters
The description of development above is taken from the Council’s decision notice as this more accurately and concisely describes the development proposed than the description provided on the application form.
The appellant suggests that parts of the proposed development are permitted development (PD). However, planning permission is sought for the proposed development as a whole and so I have assessed the proposal on that basis.
The appellant sought to amend some plans after submitting the appeal. Section 9 of the Procedural Guide: Planning appeals – England (2025) advises that after having made their appeal the appellant will not normally be able to send any further material unless further information or response is requested by the Inspector. In this context, no amended plans were accepted and my decision is based on the plans before the Council when they determined the application.
Section 04
[name]
The main issues are: • the effect of the proposed development on the character and appearance of the host dwelling and surrounding area; and • the effect of the proposed development on the living conditions of the occupiers of [address], with particular regard to daylight.
Section 05
Character and appearance
The appeal property is a 2-storey end-of-terrace dwelling located within a residential area. The surrounding area comprises a mix of terraced and semi-detached properties which collectively form the [address] Local Area of Special Character (LASC).
The LASC is a non-designated heritage asset (NDHA) which the Council’s Background Paper No. UD1 Areas of Special Character identifies as being principally composed of small Victorian terraced and semi-detached houses which, despite having suffered some unsympathetic alterations and neglect, still display a townscape value as a group. As an example of a building which largely retains its historic form and character, the appeal property, and the terrace of which it forms part, contributes positively to the significance of the NDHA.
The proposed development would significantly alter the roof form of the appeal property as a result of the proposed hip-to-to-gable enlargement and rear dormer extension. The addition would appear dominant and bulky. Moreover, it would unbalance the symmetry of the roof form of the terrace, adversely impacting its appearance.
[name] observed on site that there are different roof forms and examples of hip-to-gable enlargements in the surrounding area, properties immediately adjacent to the appeal property, which form the context in which it is viewed, retain hipped roofs. The proposed gable roof would appear incongruous in this context.
Taking account of the above, in undertaking a balanced judgement having regard to the scale of any harm and the significance of the heritage asset as required by paragraph 216 of the Framework, I consider that the proposal would cause harm to the significance of the NDHA.
The appellant indicates that they would agree to a condition requiring that the existing ridge height of the terrace is not exceeded. However, my assessment is based on the plans before me which show an increased ridge height. In any event, such a condition would not overcome the harm resulting from the proposed hip-to-gable enlargement that I have identified above. As such, this matter does not lead me to an alternative conclusion on this main issue.
The Council does not object to the proposed first floor and single storey rear extensions or the proposed front porch extension in character and appearance terms. From the evidence before me and my observations on site, I have no reason to disagree. The extensions would assimilate to an acceptable standard with the host dwelling and the surrounding area.
For the reasons set out above, I conclude that the proposed development would have a harmful effect on the character and appearance of the host dwelling and surrounding area. Therefore, the proposal does not comply with the relevant provisions of Policies DM10 and DM12 of Royal Borough of [site address] Local Development Framework Core Strategy 2012 ([name]). Amongst other matters, these policies seek development which respects, maintains or enhances the prevailing development typology and typical details and key features, such as roof forms.
Section 06
Living conditions
The proposed development includes an extension to the rear of the property which would extend to the shared boundary with No 29 as well as extending deeper into the garden than the existing extension.
The Council raises concerns regarding the potential for the extension to result in a loss of daylight entering the dining room window at No 29. However, the ‘Daylight Assessment of Kitchen/[name] at 29VR’ submitted at appeal stage identifies that the proposed development would result in a slight negligible negative impact in daylight entering No 29. In the context of the existing conditions, including surrounding built form, I do not consider that this would result in a harmful impact.
Taking account of the above, I conclude that the proposed development would not have a harmful effect on the living conditions of the occupiers of No 29, with particular regard to daylight. As such, the proposal would accord with the relevant provisions of Policy DM10 of the [name]. This policy, amongst other matters, seeks development which has regard to the amenities of occupants and neighbours, including in terms of sunlight and daylight.
Section 07
Other Matters
The appellant suggests that the appeal property benefits from PD rights including for roof conversions. Nevertheless, I have seen no substantive evidence, such as a successful Certificate of Lawful Development, to convince me that the appellant could reasonably implement a scheme akin to the proposed hip-to-gable enlargement and rear dormer extension before me under their PD rights.
Moreover, the Council disputes the ability to undertake the proposed works under PD rights due to the proposed increase in ridge height. As such, although PD rights would likely allow some form of roof extension, no detailed comparison of such rights against the specific appeal proposal has been presented. This consideration, therefore, attracts only limited weight in favour of the proposal.
The appellant highlights a Certificate of Lawful Development granted for a hip-to-gable loft conversion with rear dormer and insertion of a roof light at No 31 in 2014. I observed on site that this scheme has not been implemented. Consequently, the conversion does not form part of the character of the area. In any event, each case must be considered on its own individual circumstances, as I have done with this appeal. Therefore, this matter does not lead me to an alternative conclusion on the main issues.
I am aware that the appellant has employed the services of qualified professionals in drawing up the proposals and obtained relevant party-wall agreements. Nevertheless, these matters do not lead me to an alternative conclusion on the
Section 08
main issues.
I appreciate the frustration of the appellant regarding delays to construction work while awaiting planning permission and resultant practical and financial impacts. However, this is outwith the matters for my determination.
I acknowledge that the proposal would provide an additional bedroom to support family living within an area where they benefit from established social and educational networks and there are affordability challenges. In addition, the proposal would address accessibility issues due to level differences within the property and health and safety issues posed by a lack of insulation and ventilation beneath the kitchen floor. I have had due regard to the Public Sector Equality Duty contained in section 149 of the Equality Act 2010 and appreciate that in dismissing the appeal individuals would be unable to derive the benefits associated with the proposal, having the potential to disproportionally affect them. However, it has not been demonstrated that the proposal before me is the only way in which the desired benefits could be achieved.
Section 09
Planning Balance and Conclusion
The proposed development would provide benefits for the appellant in terms of their living accommodation. However, I do not consider that these personal circumstances outweigh the harm I have identified from the proposal, even taking into account the limited weight in favour of the proposal which the potential for a roof extension under PD rights attracts.
In conclusion, therefore, the proposed development would conflict with the development plan as a whole. With no other material considerations outweighing this conflict, for the reasons above I conclude that the appeal should be 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 5480No official casework-database value to compare
- Extracted decision date · page 1
- 19 December 2025Matches the official casework database
- Extracted site visit dates
- 26 November 2025 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3374691
- Application reference
- 25/00913/HOUF
- Lead case reference
- Not recorded
- Planning authority
- Royal Borough of Kingston Upon Thames
- Planning authority code
- E09000021
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
- 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
- 17 October 2025
- Valid date
- 17 October 2025
- Start date
- 22 October 2025
- Planning authority decision date
- 30 July 2025
- Appeal decision date
- 19 December 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
- 81955
- 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