Skip to main content
Official casework recordDismissedCurrent release

Appeal 3288184

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

6 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

an office extension above existing porch.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Main Issue

    The main issue in this appeal is the effect of the proposed development upon the character and appearance of the area.

  3. Section 04

    Reasons

    The appeal site comprises a 2-storey semi-detached house. It is on a street characterised by a regular pattern of semi-detached dwellings. Many of the houses appear to have been subject of alterations and front extensions. However, these have mainly been single storey and there is a general consistency to the 2 storey bay windows which are a prominent and positive feature within the street scene. Also, the general symmetry within the pairs of semi-detached dwellings has been relatively well preserved.

    The development would have a hipped roof and a ridge height lower than that of the original dwelling. It would also have matching materials and the same footprint as the original porch. Nevertheless, it would be 2 storey and extend further forward than the existing gable, and as a result it would dominate the front gable and result in the loss of the prominence of the attractive first floor bay window feature. Its bulk would also unbalance and result in the loss of symmetry between the pair of properties it forms part of. Given the position of the extension it would dominate the property and be incongruous with the predominant pattern of development in the street, where front extensions are generally single storey and subordinate to the bay windows. Whilst visually localised in extent, the development would diminish the character and design quality of the host dwelling, with consequent harm to the character and appearance of the surrounding area.

    I have had regard to the presence of other properties within the area which appear to have been subject of 2-storey front extensions. Numbers 46 and [address] both retain their symmetry as a pair of houses and are located within a different part of the street scene, and the distinctive first floor front gable is retained at [address]. Whilst the appellants have drawn my attention to additional examples of extensions, I don’t have full details of these properties, and none directly replicate the proposed scheme.

    The development would cause harm to the character and appearance of the area. It would therefore be contrary to Policies SP1 and CS22 of Hertsmere Local Plan Core Strategy and Policy SADM30 of The Hertsmere Local Plan Site Allocations and Development Management Policies Plan, which require development to be of a high quality of design that respects, enhances or improves the character of an area. It would also be contrary to The Planning and [name]: Guidelines for [name] and Alterations Supplementary Planning Document which seeks to prevent front extensions which would alter the overall appearance of the house or dominate the character of the street. Finally, the development would also be contrary to paragraph 130 of the National Planning Policy Framework where it states that developments should add to the overall quality of the area and be visually attractive.

  4. Section 05

    Other Matters

    Even if I were to agree that the proposal would not result in any unacceptable effects upon living conditions of occupiers of neighbouring properties, this is a neutral factor.

    The site is well located in relation to services and facilities and that alterations and extensions to houses in such locations can help to support a growing population and ensure that houses provide flexibility to meet peoples changing needs. Car parking provision would not be affected by the development. These considerations do not alter my decision, however.

  5. Section 06

    Conclusion

    For the reasons given 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 2706No official casework-database value to compare
    Extracted decision date · page 1
    21 June 2022Matches the official casework database
    Extracted site visit dates
    7 June 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3288184
Application reference
21/1934/HSE
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
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
5 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
Dismissed
Decision category
Dismissed
Received date
2 December 2021
Valid date
2 December 2021
Start date
17 December 2021
Planning authority decision date
19 November 2021
Appeal decision date
21 June 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
16688
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:26
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21