15 Bargoed Terrace Treharris CF46 5RB

1. 1.The proposed rear staircases, by virtue of their scale, design, and multi-storey height, would constitute unsympathetic and overly dominant additions to the building. The cumulative visual clutter of the structures would introduce a discordant feature into a predominantly domestic context, failing to either preserve or enhance the character and appearance of the Treharris Conservation Area. As such, the proposal is contrary to Planning Policy Wales Edition 12 (February 2024), Technical Advice Note 12: Design (2016), Technical Advice Note 24: The Historic Environment (2026), and Policies SW11 and CW1 of the Merthyr Tydfil County Borough Council Replacement Local Development Plan (2016-2031).
2. 2.The application fails to provide necessary clarity regarding the works to the principal elevation of the building, where the ambiguous introduction of white uPVC windows to the upper-floor flats would constitute an unsympathetic and incongruous alteration to a traditional facade. The loss of traditional timber window proportions and materials would harm the architectural integrity of the principal elevation, failing to either preserve or enhance the character and appearance of the Treharris Conservation Area. As such, the proposal is contrary to Planning Policy Wales Edition 12 (February 2024), Technical Advice Note 12: Design (2016), Technical Advice Note 24: The Historic Environment (2026), and Policies SW11 and CW1 of the Merthyr Tydfil County Borough Council Replacement Local Development Plan (2016-2031).
3. 3.The proposed 3 storey external staircase, by virtue of its significant height, elevated position, and immediate proximity to the shared boundary, would result in an unneighbourly and unacceptable overbearing impact when viewed from the private rear amenity area of No. 14 Bargoed Terrace. Furthermore, the elevated vantage points afforded to users accessing the flat would introduce direct, intrusive, and unmitigated overlooking into the private amenity spaces of both Nos. 14 and 16 Bargoed Terrace. The development would severely undermine the domestic privacy and living conditions that the occupiers can reasonably expect to enjoy, contrary to Policy SW11 of the Merthyr Tydfil County Borough Council Replacement Local Development Plan (2016-2031).
4. 4.The proposed upper covered platform and 3 storey staircase, by virtue of their elevated positioning relative to the local topography, would occupy a dominant position and directly overlooking the lower-lying residential properties to the south. The structure would result in an unacceptable level of direct overlooking, alongside an intrusive and permanent perception of overlooking, into the private garden areas of Nos. 29 and 30 John Street. The development would compromise the sense of domestic privacy and security of these neighbouring occupiers, contrary to Policy SW11 of the Merthyr Tydfil County Borough Council Replacement Local Development Plan (2016-2031).

From the council's decision notice.

Postcode

CF46 5RB

Application type

Full

Scale / size

Small

Date validated

12 May 2026

Consultation expiry

11 June 2026

Neighbour consultation start

20 May 2026

Neighbour consultation end

10 June 2026

Applicant

Private applicant

Agent address

Draw The Line Design Ltd Parkdale View LLANTRISANT CF72 8DT

Case officer

Kate Glover

Site notice start

21 May 2026

Site notice end

11 June 2026

Comments

0

Documents

12