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Official casework recordDismissedCurrent release

Appeal 3303753

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

described as ground floor enlargement of existing rear extension to create enlarged kitchen/day room and replacement of existing roof over with flat roof, incorporation flat roof lanterns. 1st floor extension to rear to create additional bedroom

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    I consider the main issues to be a) the effect of the proposal on the architectural integrity of the host property and thereby the streetscene, and; b) the effect of the proposed development on the living conditions of adjoining residential neighbours, in terms of its potential to have an enclosing and oppressive impact leading to a loss of light and outlook.

  3. Section 04

    Reasons

    The appeal property [site address] is a semi-detached two-storey dwelling with roof space accommodation. Park Avenue is a cul-de-sac, characterised by a mix of semi-detached and detached two-storey dwellings and chalets, built to an eclectic mix of designs and external materials.

    The appellants propose ground and first floor additions to the rear of the property. The Council raise no objection to the single storey addition. From what I have seen and read I would not reach a contrary view.

  4. Section 05

    Character and appearance

    It is proposed that the two-storey rear addition would be built off the rear corner of the original dwelling and linked to the first floor accommodation over the garage, to the front of the dwelling, by a flat roof corridor. The roof over the new first floor bedroom would be of a pitched hipped design.

    Due to the position of the proposed first floor addition, its relationship to the host property and flat roof link it would appear as an awkward, contrived addition to the host property. For these reasons it would cause harm to the architectural integrity of the host property.

    The neighbouring property number [address] is a chalet bungalow. Accordingly, the proposed first floor addition would be open, albeit limited to views from the street. I consider that because of the awkward positioning of the addition and its three-dimensional form it would appear as an incongruous addition within the street scene.

    I therefore conclude in respect of the first main issue that the proposed first floor addition would fail to comply with the objectives of Policy DP26 of the Mid Sussex District Plan (LP), Policy 9 of the Hassocks Neighbourhood Plan (NP), Principles DG49 and DG51 of the mid [name] and the National Planning Policy Framework (the Framework) as they relate, along with other things, to the quality of design and the need for new development to contribute positively to the private and public realm.

  5. Section 06

    Living conditions

    The flank wall of the chalet bungalow, number [address] is set some 2.2 metres from the appeal property. There are two ground floor windows facing the appeal site, one being a shallow bay serving a habitable room.

    Given the position of the flank wall to the side of the appeal property, the two ground floor windows and the relationship of the extension to the flank of number 3, I consider that as well as having an enclosing and somewhat oppressive impact on number 3 the proposed extension would cause an unacceptable loss of light and outlook.

    For the reasons set out above I conclude in respect of the second main issue that the proposed addition would cause significant harm to the living conditions of the occupiers of number [address]. The proposal would therefore fail to comply with LP Policy DP26 and NP Policy 9, SPD and the Framework as they seek to protect residential living conditions.

  6. Section 07

    Other matters

    I have noted the revised design submitted by the appellants at appeal. However, this proposal is a significant departure from the scheme design at appeal. It would therefore be for the Council to determine any application for the revised scheme in the first instance. I shall therefore not consider this amended proposal further.

    The appellants have drawn to my attention concerns that the Council were not prepared to advise on their amended proposal. This is however not relevant to my consideration of the planning merits of this appeal.

    In reaching my conclusions on this matter I have noted that both the neighbour at number [address] and Hassocks Parish Council supported the original planning application. However, given my conclusion on both of the main issues I have given limited weight to this consideration.

  7. Section 08

    Conclusions

    For the reasons given above and having regard to 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 1184No official casework-database value to compare
    Extracted decision date · page 1
    5 January 2023Matches the official casework database
    Extracted site visit dates
    6 December 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3303753
Application reference
DM/22/1337
Lead case reference
Not recorded
Planning authority
Mid Sussex District Council
Planning authority code
E07000228

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
24 July 2022
Valid date
26 September 2022
Start date
17 November 2022
Planning authority decision date
21 June 2022
Appeal decision date
5 January 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
26041
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