Appeal 3284925
Public case and site metadata stored from the official casework database, including fields that were empty in the source release.
A clearer next step
See how Inspectors approached issues like yours
Bring your planning decision into a private workspace. We separate the disputed points, then match them with source-located Inspector reasoning from similar appeals.
- See which issues the decision appears to turn on
- Compare the facts and open the full appeal records
One private comparison
How the refusal review worksOne-off service · No subscription
Similar appeals are evidence to inspect, not a prediction of your outcome.
Official decision document
The decision, section by section
7 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 enlargement of existing single-storey rear extension.
Section 02
Decision
The appeal is allowed and planning permission is granted for the enlargement of existing single-storey rear extension at [site address] in accordance with the terms of the application, Ref 8299/APP/2021/2829, dated 20 July 2021, subject to the following conditions:
The development hereby permitted shall begin not later than 3 years from the date of this decision.
The development hereby permitted shall be carried out in accordance with the following approved plans: Location Plan, Block Plan, 7WA-AN- 001 A01, 7WA-AN-002 A01 and 7WA-AN-003 A01.
The materials to be used in the construction of the external surfaces of the development hereby permitted shall match those used on the exterior of the existing single-storey rear extension.
Section 03
[name]
The main issues are the impact of the proposed development on (i) the character and appearance of the host dwelling and the area and (ii) the living conditions of the occupiers of [address].
Section 04
Character and appearance
The appeal dwelling sits in a terrace of properties close to the corner of [address] and [address]. It has an existing flat roof single storey extension to its rear, which is adjoined to the neighbouring property at [address] and which then continues along the rear of No 11. There are other examples of flat roofs in the area, both on extensions to houses and on outbuildings. Whilst the rear of the appeal property can be seen from [address], it is viewed in the context of the existing extensions and outbuildings that are present.
The proposal would result in a projection further than that of the extensions to the rear of the adjoining properties at Nos 9 and 11, but not significantly so in relation to what is already present at these dwellings. It would also not be positioned immediately adjacent to [address], along which a high brick wall forms the boundary and provides a degree of screening, and its general form and appearance would be in keeping with the locality. In such a context the extension that is proposed would not have a harmful visual impact upon its host dwelling, nor would it cause harm to the character and appearance of the surrounding area.
For these reasons, I conclude that the proposal would accord with Policy BE1 of the Local Plan: Part 1 [name] (LPSP) and Policy DMHB 11 of the Local Plan: Part 2 Development Management Policies (LPDMP), where they seek to protect character and appearance. [name] note that Policy DMHD 1 of the LPDMP sets out specific parameters that rear extensions should meet, in the circumstances of this case there would be no conflict with the overall objectives of this policy that relate to character and appearance.
Section 05
Living conditions
The adjoining dwelling at [address] has not been extended to its rear. That said, the existing rear extension to the appeal dwelling extends out at the point closest to the rear elevation of No 5 and its ground floor windows. The proposed development would not substantially increase either the height or length in comparison to what is already present. No 5 also has a rear garden of a length that means most of its external area would be unaffected by the proposal. As a result of these factors the proposed enlargement to the existing extension would not cause harm to the living conditions of the occupiers of No 5 through overdominance, overshadowing, visual intrusion, loss of light or a loss of outlook.
In conclusion, the proposal would accord with policy DMHB 11 of the LPDMP, where it seeks to safeguard the living conditions of the occupiers of adjacent residential properties. There would again be no conflict with the overall aims of Policy DMHD 1 of the LPDMP where it refers to living conditions, in the circumstances of the case that I have outlined.
Section 06
Conditions
Conditions are required with respect to the period to commence development and the approved plans, in the interests of providing certainty. It is necessary to impose a condition relating to external facing materials, to ensure that the proposal has an appropriate visual appearance. I have worded this in relation to the existing rear extension, mindful that it is intended to use matching bricks but also that the use of render would be acceptable in the context of the surroundings, if it was opted to also render the existing extension as well.
Section 07
Conclusion
For the reasons given above, I conclude that the appeal should be allowed.
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 183No official casework-database value to compare
- Extracted decision date · page 1
- 31 January 2022Matches the official casework database
- Extracted site visit dates
- 25 January 2022 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3284925
- Application reference
- 8299/APP/2021/2829
- Lead case reference
- Not recorded
- Planning authority
- London Borough of Hillingdon
- Planning authority code
- E09000017
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
- 15 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
- Allowed
- Decision category
- Allowed
- Received date
- 15 October 2021
- Valid date
- 15 October 2021
- Start date
- 20 October 2021
- Planning authority decision date
- 14 September 2021
- Appeal decision date
- 31 January 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
- 9705
- 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