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Official casework recordDismissedCurrent release

Appeal 3274012

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

5 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

to remove the existing roof from principal part of dwelling and replace with new first floor extension that has additional living accommodation within its roofspace. Appeal B Ref: APP/C1950/D/21/3274014 [site address] , Cuffley, Hertfordshire [postcode]

  1. Section 02

    Decisions

    Appeal A is dismissed.

    Appeal B is dismissed.

  2. Section 03

    Procedural Matter

    [name] and B relate to two separate proposals for prior approval at the same property and both applications to which these appeals relate to were refused for the same reason. Therefore, I have dealt with both appeals together.

  3. Section 04

    Background and Main Issue

    In the case of both the appeals before me, the Council is of the opinion that the submitted schemes do not comply with the eligibility requirement of [name].1 (i) of Part 1 of Schedule 2 of the Town and Country Planning (General Appeal Decisions APP/C1950/D/21/3274012 and APP/C1950/D/21/3274014 Permitted Development) Order 2015 (as amended) (‘GPDO’). This states that development is not permitted by Class AA if it does not meet any of the criteria under Class AA.1 of the GPDO, including: ‘(i) any additional storey is constructed other than on the principal part of the dwellinghouse;’

    Accordingly, the main issue in respect of both appeals is whether the proposals would be permitted development under Class AA of the GPDO having regard to [name].1 (i) of Class AA of the GPDO

  4. Section 05

    Reasons

    The appeal property comprises an extended chalet bungalow with some accommodation incorporated at roof level.

    Whilst the reasons for the eligibility requirements may not be clear from the legislation, my role as the decision maker is to assess whether a specific proposal for prior approval meets these requirements.

    Paragraph AA4.(1) of the GPDO states that for the purposes of Class AA "principal part", in relation to a dwellinghouse, means the main part of the dwellinghouse excluding any front, side or rear extension of a lower height, whether this forms part of the original dwellinghouse or is a subsequent addition.

    Irrespective of the appellants’ broader interpretation of Paragraph AA4.(1), in my view, this Paragraph is clear and precise with limited scope for subjectivity.

    The main parties agree that the appeal property benefits from a front extension which dates back to a planning permission from 1966. This extension is part hipped and part flat roofed. Despite the appellants’ assertion that this front extension is physically and visually indivisible from the original dwelling, for the purposes of Paragraph AA4.(1) this is a subsequent addition with a lower height relative to the original dwellinghouse.

    The proposed scheme under Appeal A incorporates an additional storey with some roof level accommodation above the entire building including the front extension but excludes the existing flat roofed side and rear elements. The proposal under Appeal B is similar to that under Appeal A but does not extend over the flat roofed section of the front extension.

    Therefore, in both schemes (Appeal A and Appeal B) the proposed additional storey would to a lesser or greater degree extend over the existing front extension which is of a lower height than the original dwelling. As such, in both schemes the proposed additional storey would be constructed other than on the principal part of the dwellinghouse. Consequently, the proposals under both Appeal A and Appeal B do not meet the eligibility requirement of [name].1.(i) of the GPDO.

    Accordingly, the proposals for both Appeal A and Appeal B are not permitted development under Class AA of the GPDO. I, therefore, conclude that Appeal A and Appeal B 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 196No official casework-database value to compare
    Extracted decision date · page 1
    14 September 2021Matches the official casework database
    Extracted site visit dates
    4 August 2021 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3274012
Application reference
6/2020/2740/PN27
Lead case reference
Not recorded
Planning authority
Welwyn Hatfield Council
Planning authority code
E07000241

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
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
Yes
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
28 April 2021
Valid date
28 April 2021
Start date
30 June 2021
Planning authority decision date
17 December 2020
Appeal decision date
14 September 2021

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
No
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
3146
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:25
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21