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10 Ashgrove Trethomas Caerphilly CF83 8BP

26/0212/HHHouseholder ApplicationRefused
Householder

Refused on 27 April 2026

Delegated (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

Erect two storey rear extension

Received
24 March 2026
Decision level
Delegated (officer decision)
Ward
Bedwas And Trethomas
  1. Received24 Mar
  2. Validated24 Mar
  3. Consult.15 Apr
  4. Target19 May
  5. Decided27 Apr

Decided in 34 days (council typically 56)

About this application

This is a full planning application for a two storey rear extension at 10 Ashgrove Trethomas Caerphilly CF83 8BP. Caerphilly has handled 4,476 applications of this type. This one was decided in 34 days, 3 weeks quicker than Caerphilly's typical decision time. There has been 1 other application at this address. In the past year there have been 18 applications across Bedwas And Trethomas. We hold 1,089 applications in total for the CF83 postcode area.

74% of full applications at Caerphilly County Borough Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Why it was refused

  1. The proposed double-storey rear extension, by virtue of its excessive height, depth, and proximity to the shared boundary with No. 12 Ashgrove, would result in an unacceptable overbearing impact and loss of light to that neighbouring property. The development would therefore have a detrimental impact on the residential amenity of the adjoining occupiers, contrary to Policy CW2 of the Caerphilly County Borough Local Development Plan up to 2021 (adopted November 2010) and the guidance contained within Supplementary Planning Guidance LDP7: Householder Development (adopted January 2017).

From the council's decision notice.

Application details

Postcode
CF83 8BP
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
24 March 2026
Consultation expiry
15 April 2026
Consultation start
25 March 2026
Consultation end
15 April 2026
Neighbour consultation start
25 March 2026
Neighbour consultation end
15 April 2026
Last date for comments
15 April 2026
Target decision date
19 May 2026
Permission expires
27 April 2031

Applicant and agent

Agent address
Mr D Watkins 49 Beaumaris Way Cefn Fforest Blackwood NP12 1DF

Planning decision

Statutory period
56 days

Additional information

Documents
8
Constraints
5

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Planning history at this site

1 other application at this property, newest first.

  1. 2026
    28 Apr

    Erect two storey rear extension

    ApprovedHouseholder26/0309/HH

Source: Caerphilly

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