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Official casework recordAllowedCurrent release

Appeal 3307539

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

installation of a metal railing at parapet level as a protection edge.

  1. Section 02

    Decision

    The appeal is allowed and planning permission is granted for installation of a metal railing at parapet level as a protection edge at [site address] in accordance with the terms of the application Ref 76940/APP/2022/1691 dated 24 May 2022 subject to the following

  2. Section 03

    conditions:

    The development hereby permitted shall begin not later than 3 years from the date of this decision.

    Unless otherwise amended under the condition below, the development hereby permitted shall be carried out in accordance with the following approved plans: NB-01, NB-005 and NB-006.

    The metal railing hereby permitted shall not be installed until further details of the detailed design, materials and external finish of the railings have been submitted to and approved in writing by the Local Planning Authority. The development shall be carried out in accordance with the approved details.

  3. Section 04

    [name]

    The main issues are (i) the effect of the proposal on the character and appearance of the host dwelling and area; and (ii) the effect of the proposal on the living conditions of the occupiers of 21 and [address] with particular regard to privacy.

  4. Section 05

    Character and Appearance

    [address] is predominantly characterised by semi-detached dwellings of a few different original designs, although there are also a number of detached two-storey dwellings and bungalows present. Some of the semi-detached pairs are two-storey buildings with pitched or hipped roofs. However, many closest to the appeal site have flat roofs, often with set back higher central sections, render finishes and decorative detailing around entrances and between the first floor windows which give them a distinctive art deco style appearance.

    The appeal dwelling is part of one such pair which has two-storey sections with flat roofs to either side of a central three-storey flat roof projection. The appeal proposes railings above the parapet wall around the roof to the two-storey part of the dwelling. The Council asserts that the development would be an incongruous addition, commenting that balconies and roof terraces are not established features of the street scene. However, I observed doors providing access to the flat roofs of some dwellings, including the appeal property, from the street. The information before me does not indicate that there is currently any restriction on use of the flat roof of the dwelling as a terrace, even if the appeal were to be dismissed. Although the railings would provide additional protection to the edge of the roof, there is already a parapet which offers some protection, and I am not persuaded that the proposal would facilitate a new or significantly different use from that which could already occur.

    Moreover, the appellant has provided images showing artificial turf and garden furniture to the roofs of 5 and [address], suggesting that at least some of the flat roofs nearby are used as terraces. I acknowledge that the railings would be a more visible signal of the use of the appeal dwelling roof as a terrace, but in this respect, the use of the roof as a terrace would not be exceptional or out of keeping with the character of surrounding buildings.

    I did not see railings to any other nearby buildings, but I agree with the appellant that such features can respect the sleek lines and geometric forms that are typical of art deco buildings, and in my experience, railings would not be an unprecedented element of buildings in this style. Indeed, I note an example within the appellant’s evidence of railings to an art deco building elsewhere. The railings would also be of significantly lower height than the second-floor of the building, and subject to the diameter of the bars and a design that provides for reasonable spacing between them, the railings would have a fairly lightweight appearance that would retain clear views through them.

    These factors would reduce the visual impact of the development, and I am satisfied that a sympathetic detailed design and finish to the railings to complement the host building could be secured by a planning condition. On that basis, I find that the railings would be a relatively discreet addition that would assimilate well with the architectural style of the dwelling, and that the development would not harmfully erode the character, appearance, or integrity of the host building.

    In addition, there is already some variety in the architectural design, form and appearance of other buildings nearby, including examples of semi-detached dwellings which differ from their attached neighbour. These include 17 and [address] which appear to be of similar original form to the appeal dwelling pair at ground and first-floor levels, but which have roofs of significantly different height to one another. Although the railings would be visible including from [address], I find having regard to this context and the modest visual impact of the development that their presence would not be striking or unduly prominent in the street scene, and the group value of properties around the site would not be harmfully diminished.

    The submitted plans also indicate some alterations to fenestration to the second floor of the dwelling. The Council considers that the changes would be acceptable and comments that they would not require planning permission, and I have no firm reason to find differently.

    For these reasons, I conclude that the proposal would not cause unacceptable harm to the character or appearance of the host dwelling or area, and the development would accord with [name] 1, DMHB 11 and DMHB 12 of the Local Plan Part 2 Development Management Policies 2020 (‘the LPP2’). Together and amongst other things, these broadly seek to ensure that development harmonises with the local context and integrates with the surrounding area, and that extensions and alterations respect the design of the host dwelling and the character, appearance and quality of the street and area.

  5. Section 06

    Living Conditions

    I have already noted that it appears that the roof of the appeal dwelling could currently be used as a terrace. In any event though, the three-storey part of the appeal dwelling projects deeper to the rear than the flat roof of the two-storey part, and would screen views from this roof towards the closest part of the garden to the attached neighbour at [address]. To the other side, [site address] has a single-storey rear extension and an outbuilding close to the boundary with the appeal site which would similarly provide screening of views onto the closest part of its garden. There would be views towards the rear part of the neighbouring gardens, but these would be little different to those already available from the windows within the first and second floor levels of the appeal dwelling, and would not be unusual within a residential area. Given these factors, I find that the proposal would not result in a significant increase in overlooking or in an intrusive loss of privacy for neighbouring occupiers. Nor would the development be overbearing noting these relationships and the open nature of the railings.

    I therefore conclude that the proposal would not cause unacceptable harm to living conditions for the occupiers of 21 or [address], including through loss of privacy. As a consequence, I find no conflict with policies DMHD 1 or DMHB 11 of the LPP2 insofar as they include requirements that development achieves a satisfactory relationship with adjacent dwellings and does not adversely affect the amenity of adjacent properties.

  6. Section 07

    Conditions

    I have imposed the standard time limit condition, and a condition specifying the approved plans for the avoidance of doubt and in the interest of certainty. The Council has suggested a condition to require the use of matching materials, but I consider given my findings on the first main issue that it is instead necessary to seek further details of the design and materials of the railings before they are installed in the interests of the character and appearance of the host building and area. The appellant has provided written approval for the imposition of this condition which would effectively need to be discharged before development could commence.

  7. Section 08

    Conclusion

    For the reasons given above, I find that the proposal would accord with the development plan when it is read as a whole, and material considerations do not indicate that a decision contrary to the development plan should be reached. I therefore 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 457No official casework-database value to compare
    Extracted decision date · page 1
    18 April 2023Matches the official casework database
    Extracted site visit dates
    28 March 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3307539
Application reference
76940/APP/2022/1691
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
0
Site in Green Belt
No
Agricultural holding
Not recorded
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
1 September 2022
Valid date
1 September 2022
Start date
20 February 2023
Planning authority decision date
18 August 2022
Appeal decision date
18 April 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
31281
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