Skip to main content
Official casework recordDismissedCurrent release

Appeal 3374551

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

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

demolition of the existing rear conservatory and the erection of a single storey rear and side extension with roof lights. First floor side and rear extension above existing garage with rooflights.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Procedural Matters

    I have utilised the Council’s description of the proposal as I find it describes the proposal more concisely.

  3. Section 04

    Main Issue

    The main issue is the impact of the first-floor side extension on the character and appearance of the existing building and the visual amenity of the street scene and surrounding area.

  4. Section 05

    Reasons

    The appeal site is a two-storey detached dwelling with an attached garage which is located within a residential area. The dwellings along [address] are characterised as two storey with a clipped gable roof design with the appeal site being representative of, and in-keeping with, the dwellings found within the immediate locality and within which the proposals would be generally viewed. The dwellings share architectural and general design features which, overall, results in visual continuity and a consistent character and appearance. The attached single storey garage is also a notable feature of dwellings on [address].

    The proposed roof of the first-floor side extension, above the existing garage, would have a lean-to appearance which would result in the overall height of the extension being below the eave of the host dwelling. This, alone, would not result in the proposal being sufficiently subservient (or appropriate) as the overall design would be completely at odds and out of keeping with the character of the street scene and the surrounding area. The proposal would result in a proposed first floor side extension which would be entirely uncharacteristic for the host dwelling and the visual amenity of the street scene and surrounding area as a result of a bulky and unsympathetic addition to the host dwelling.

    The additional storey above the existing garage would be out of character with the style of garaging which is characteristic within [address] and would result in competing and unsuitable design aspects which would look visually awkward as a result of the lean-to style/design and, in particular the proposal’s interaction with the first-floor window and roof. Furthermore, the lack of fenestration, at ground floor level, would lead to a large brick wall in the context of the street scene at ground floor level in the front elevation which I find would exacerbate the inappropriate visual bulk, scale and massing of the proposal to the side of the host dwelling in views along [address].

    I note that the appellant outlines that the proposal has been designed to mirror the main house as a result of the lean-to design, however, whilst the proposal may be subservient insofar as the height does not exceed the eaves of the host dwelling I do not find that the proposal would be visually subservient due to the bulk scale and massing and design combined with the design features discussed above. In particular the interaction of the roof and the first-floor window, and lack of fenestration at ground floor, I find contributes to bulk, scale and massing visually which would be inappropriate for the host dwelling. The proposal would be set back, at first floor level, from the principal elevation of the dwelling, however, I do not find that this is sufficient to support the proposal in design terms with the awkward and contrived nature of the proposed side extension being further exacerbated by the interaction with the proposed rear extension.

    The proposal would utilise matching materials and whilst reference has been made to other two storey side extensions granted, each application should be considered on its own merits. The appellant’s planning statement, submitted within the original application, references a project at [address] (21/015687/HOU), however, no details of this site have been submitted before me as part of the appeal submission. I have no details, therefore, of the proposal which is stated to have been approved other than the commentary by the Council that it allowed varied roof forms as being acceptable.

    Overall, I find that the proposal would result in visual intrusion which would be detrimental to the character of the surrounding area where the street scene is characterised by appropriate additions, and consistent design to the side of properties, in terms of the general roof scape. The first-floor side extension, above the existing garage, would also be combined with a large single storey rear extension which, cumulatively, would result in an overbearing and unsympathetic addition to the appeal site and the host dwelling by the appellant.

    The proposal would be contrary to Plan:MK 2016 to 2031 Policy D1 which requires proposals as a whole respond appropriately to the site and the surrounding context and Policy D2 which requires the massing/scale of a development and appearance of buildings to exhibit a positive character or sense of place for a development and that the design allows for visual interest through the careful use of detailing, where this is appropriate to the character of the area.

    The proposal would also be contrary to Policy D3 which requires that the proposed scale and design of extensions to existing buildings relate well to the existing building and plot and do not detract from the character of the existing building and the surrounding area. The proposal would also be contrary to Campbell Park Neighbourhood Development Plan Design Policy 1 which requires proposals to integrate into surroundings in terms of scale, density and design and to respect the character of the area.

  5. Section 06

    Other Matters

    The appellant has submitted a daylight and sunlight impact assessment, however, impact upon neighbouring residential amenity with regard to such matters does not form a refusal reason from the Council. I note from the Council’s delegated report that they consider the proposed first floor side extension would have some negative impact on the outlook afforded from the rear windows of [address] and its private rear amenity space, however, on balance the Council do not consider the proposal would cause unacceptable overbearing impact to the neighbouring garden.

    I have no reason to conclude differently in relation to such matters and whilst I acknowledge the assessment submitted by the appellant the acceptability of the proposal in the context of residential amenity does not overcome the issues which I have found with the proposal in the context of design, siting and visibility in terms of character and appearance of the existing dwelling and the street scene itself.

  6. Section 07

    Conclusion

    For the reasons outlined above, and taking into account all other matters raised, 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 6324No official casework-database value to compare
    Extracted decision date · page 1
    10 November 2025Matches the official casework database
    Extracted site visit dates
    5 November 2025 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3374551
Application reference
PLN/2025/1013
Lead case reference
Not recorded
Planning authority
Milton Keynes Council
Planning authority code
E06000042

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
49 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
Dismissed
Decision category
Dismissed
Received date
13 October 2025
Valid date
14 October 2025
Start date
15 October 2025
Planning authority decision date
21 July 2025
Appeal decision date
10 November 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
79409
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