Appeal 3263235
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, two storey side extension including conversion of garage to habitable room and extension to porch to front.
Section 02
Decision
The appeal is dismissed.
Section 03
Appeal Procedure
The site visit was undertaken by an Appeal Planning Officer whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.
Section 04
[name]
The main issues are: (i) the effect of the single storey rear extension on the living conditions of the current and future occupiers of the appeal dwelling, with regard to garden space. (ii) the effect of the two-storey side extension on the character and appearance of the area
Section 05
Living conditions
The back garden of the dwelling is modest and consists of a smaller area of patio in comparison to the lawn. This backs onto the beer garden located to the rear of [address] on [address]. It is also enclosed to the sides and rear by fencing.
The proposal includes the erection of a single storey rear extension with a flat roof. This would cover almost the entire rear elevation, with the plans indicating it would project 2.3m. Policy DMHD 1 and Policy DMHB 18 of the London Borough of Hillingdon Local Plan Part 2 Development Management Policies 2020 (The Local Plan Part 2) state that alterations and extensions to residential dwellings should retain adequate garden space. It is noted that this private amenity space provision would not meet the required [address] metres (minimum) for a four-bedroom dwelling and would therefore not comply with Policy DMHB 18 of The Local Plan. The proposal would result in very limited usable outside space for the current and future occupiers of the property. As the dwelling already has a very modest garden, as well as being enclosed on each side by either the house or relatively tall boundary treatments, the proposal would lead to a confined form of development. This would result in a poor environment in terms of the outside space available. Therefore, the proposal would cause harm to the living conditions of the current and future occupiers of the property.
Even if a four-bedroom dwelling could be created through alterations and extensions that would not require express planning permission, this would take a different form than the proposals subject to this appeal. Therefore, I give this factor limited weight and it would not outweigh the harmful effects of the development.
Considering the above, it is concluded that the proposal would result in harm to the living conditions of the current and future occupants of the appeal dwelling. This would therefore not accord with [name] 1 and DMHB 18 of the Local Plan Part 2. These policies seek to retain and provide adequate and good quality, useable outdoor amenity space.
Section 06
Character and appearance
The appeal dwelling is one of four two-storey houses of a similar design, located within a residential setting. The detailed design and spacing of these four properties varies, with the appeal dwelling and the neighbouring house, number 2, being link-detached. A single storey garage separates these houses from numbers 4 and [address] together, with only a narrow access gap between them. Between 2A and 4, there is both the attached garage to 2A and a similar narrow access gap. The area is not comprised of uniform building styles, with terraced housing opposite the site. Therefore, the gaps between neighbouring properties varies significantly.
The proposal consists of a two-storey side extension including conversion of garage to a habitable a room and extending to the rear wrapping around with the proposed single storey rear element. As the side extension is proposed to be set down from the main ridge as well as being set back from the front elevation, it would give the general appearance of being subservient to the host dwelling. Any terracing effect would not be dissimilar to that found in the immediate area.
The proposal would not meet certain criteria of Policy DMHD 1 of the Local Plan Part 2, including relating to the degree of set in from the side boundary. However, this was considered as acceptable through the previous appeal decision which was considered under a similar policy context. When considered in its particular context, this element of the proposal would not be harmful to the character and appearance of the area or contrary to the aims of the development plan policies when they are considered as a whole.
For the reasons above, the side extension would not result in harm to the character and appearance of the area. It would accord with Policy BE1 of the Hillingdon Local Plan: Part 1 - [name] (November 2012) and Policy DMHB 11 of the Local Plan Part 2. Together, these Policies seek to improve and maintain the quality of the built environment and to protect the character and appearance of the area. It would also accord with the overarching principles of Policy DMHD 1 of the Local Plan Part 2, which seeks to ensure that extensions to dwellings have no adverse cumulative impact on the character, appearance and quality of the area.
Section 07
Conclusion and Recommendation
The lack of harm in respect of the effect of the development on the character and appearance of the area would not mitigate or outweigh the harm in respect of the first main issue.
Based on the above, and having regard to all matters raised, I recommend that the appeal should be dismissed.
Section 08
Inspector’s Decision
I have considered all the submitted evidence and the Appeal Planning Officer’s report and on that basis 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 859No official casework-database value to compare
- Extracted decision date · page 1
- 20 July 2021Matches the official casework database
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3263235
- Application reference
- 59942/APP/2020/2495
- 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
- Not recorded
- Number of residences
- 1
- 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
- 16 November 2020
- Valid date
- 16 November 2020
- Start date
- 18 March 2021
- Planning authority decision date
- 1 October 2020
- Appeal decision date
- 20 July 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
- 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
- 992
- 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