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21 Shirley Drive Heolgerrig Merthyr Tydfil CF48 1SE

P/26/0064FullRefused

Refused on 18 May 2026

Council decision: RefusalDelegated (officer decision)1 reason for refusal

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Side extension with rear dormer and other alterations

Received
30 March 2026
Decision level
Delegated (officer decision)
Ward
CYFARTHFA
  1. Received30 Mar
  2. Validated30 Mar
  3. Consult.22 Apr
  4. Target
  5. Decided18 May

Decided in 49 days (council typically 49)

About this application

This is a full planning application for a dormer extension at 21 Shirley Drive Heolgerrig Merthyr Tydfil CF48 1SE. Merthyr Tydfil has handled 2,520 applications of this type. This one was decided in 49 days. There has been 1 other application at this address. In the past year there have been 17 applications across CYFARTHFA. We hold 683 applications in total for the CF48 postcode area.

91% of full applications at Merthyr Tydfil County Borough Council were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Why it was refused

  1. The proposed development, by virtue of its poor and unsympathetic design and excessive proportions to the rear dormers, would represent an incongruous and visually harmful form of development that would have an unacceptable impact on the character of the dwelling and visual amenities of the area contrary to Policy SW11 of the Merthyr Tydfil County Borough Council Replacement Local Development Plan 2016-2031.

From the council's decision notice.

Application details

Postcode
CF48 1SE
Application type
Full
Scale / size
Small

Planning application dates

Date validated
30 March 2026
Consultation expiry
22 April 2026
Neighbour consultation start
1 April 2026
Neighbour consultation end
22 April 2026

Applicant and agent

Applicant
Private applicant
Agent address
Utopia Design 5 Amberton Place Penydarren Merthyr Tydfil CF47 9HX

Planning decision

Case officer
Rebecca Owens

Additional information

Comments
0
Documents
6

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Source: Merthyr Tydfil

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