Skip to main content
Official casework recordAllowedCurrent release

Appeal 3302535

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 works

One-off service · No subscription

Similar appeals are evidence to inspect, not a prediction of your outcome.

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.

  1. Section 02

    Decision

    The appeal is allowed and prior approval is granted under the provisions of Article 3(1) and Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for a single storey rear extension at [site address] , Hertfordshire [postcode] in accordance with the application Ref 22/0635/PD42, dated 8 April 2022, and the details submitted with it including drawing Nos 2203011 PL01, PL02, PL03, PL04, PL05, PL06 and PL07.

  2. Section 03

    Preliminary Matters

    Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) (the 2015 Order) relates to extensions to a dwellinghouse, as is proposed. The house is a semi-detached property. It is not located in a conservation area nor any other Article 2(3) land. [name].1 of the 2015 Order sets out a number of restrictions on an extension in such circumstances, in particular that it can be up to 6m beyond the rear wall of the original dwellinghouse and up to 4m in height. The proposal complies with all the restrictions and is therefore ‘permitted development’ as set out in Part 1 Class A of the 2015 Order.

    [name].4(7) of the 2015 Order confirms that, where the occupier of an adjoining premise objects to the proposal, ‘prior approval’ is required as to the impact of the proposal on the amenity of the occupiers of the adjoining premise. The occupier of an adjoining property, [address], has objected to the proposal regarding loss of light. ‘Prior approval’ is therefore required with regard to the effect of the proposal on the living conditions of neighbouring occupiers. [name].4(9) makes it clear that this must consider the living conditions of all adjoining occupiers, which in the case of the appeal are the occupants of 52 and [address] and [address].

  3. Section 04

    Main Issue

    The main issue is the effect of the proposal on the living conditions of the occupiers of the neighbouring properties, specifically 52 and [address] and [address].

  4. Section 05

    Reasons

    The property the subject of the appeal is a semi-detached dwelling. The adjoining property, No [address], is to the north-west. In addition, No 52 is set at a lower level than the appeal property. Extensions to the rear of the appeal property would, therefore, affect the amount of sunlight received into the rear elevation of No 52.

    There is an existing rear extension. It is proposed to demolish the existing rear extension and replace it with the proposed extension. The proposed extension would be 5m deep, 5.8m wide and up to 3m tall, albeit with the eaves at 2.8m. I acknowledge that the proposed extension breaches the 45 degree line from the neighbouring windows. However, so does the existing extension and, in any event, this does not necessarily mean that a proposal would have an unacceptable effect on the living conditions of neighbouring occupiers, which I assess below.

    The proposed extension would present a slightly longer flank wall to No 52. However, the existing boundary includes not only the existing extension but also a bush largely in the location of the proposed flank wall. There would therefore be minimal worsening of the amount of sunlight received by No 52. For the same reason, there would be a very limited effect in terms of daylight, outlook and sense of enclosure.

    No 56 to the south is set slightly away from the appeal property. It also lies to the south-east. The existing flank wall to No 56, which has no windows, runs further to the rear than the main rear wall of the appeal property. The proposed extension would only protrude slightly further rearwards than this main flank wall. The proposed extension would, therefore, only result in a very limited increase in sense of enclosure, or loss of sunlight or daylight, or harm to outlook to the occupiers of the property.

    [address] is at the end of a long rear garden and the proposed extension would be viewed against the silhouette of the much larger existing rear elevation of the appeal property behind. There would therefore be no material effect on the occupiers of this property from the proposal in terms of loss of sunlight or daylight, sense of enclosure, or harm to outlook.

    For the reasons set out above, there would be no material effect on the living conditions of occupiers of the neighbouring properties as a result of the proposal.

  5. Section 06

    Other Matters

    The objection from the neighbour also highlights an existing garden structure, errors in the submitted drawings and over-development of the site including a further planned loft conversion. There is an existing garden structure but this is not part of the proposal and it would not cause, in combination with the proposed extension, any further effects on the living conditions of the occupiers of neighbouring properties. The appellant has submitted a certificate of lawfulness application1 for a roof extension as part of a loft conversion. It is unclear if this has been granted although I can confirm following my site visit that it has not yet been built. In any event, this extension would not, either by itself or in combination with the proposed extension, result in the proposal not complying with the restrictions in Part 1, Class A of the 2015 Order. It is not, therefore, a material consideration.

  6. Section 07

    Conclusion

    For the reasons above, the appeal should be allowed and prior approval should be granted.

  7. Section 08

    Conditions

    Any planning permission granted under Article 3(1) and Schedule 2, Part 1, Class A is subject to conditions set out in [name].3 and A.4(11) which specify that the materials be of similar appearance to the existing house and that the development must be carried out in accordance with the details as approved.

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 19547No official casework-database value to compare
    Extracted decision date · page 1
    19 June 2023Matches the official casework database
    Extracted site visit dates
    16 May 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3302535
Application reference
22/0635/PD42
Lead case reference
Not recorded
Planning authority
Hertsmere Borough Council
Planning authority code
E07000098

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
28 m²
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
Allowed
Decision category
Allowed
Received date
6 July 2022
Valid date
6 July 2022
Start date
15 September 2022
Planning authority decision date
20 May 2022
Appeal decision date
19 June 2023

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
34142
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:27
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21