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Planning application

5 Cyncoed Avenue Cyncoed Cardiff CF23 6ST

Granted Cardiff 25/01653/HSE Householder Planning Permission

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within five years of the decision or the permission lapses.

Proposal

Single storey rear extension and installation of an Air Source Heat Pump with external alterations to the property.

As published by the council, reference 25/01653/HSE

Application record

Reference
25/01653/HSE
Type
Householder Planning Permission
Status
Decided
Decision
Granted As published: Permission Granted
Received
16 Jul 2025
Validated
18 Jul 2025
Decided
16 Sep 2025
Ward
CYNCOED
Decision by
Chair (1- 5 Reps)
Postcode
CF23 6ST

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 26/00205/NMA Granted

    5 Cyncoed Avenue Cyncoed Cardiff CF23 6ST

    Proposed Non-Material Amendment to Planning Permission 25/01653/HSE- Change proposed windows, down pipes and soffits from aluminium to UPVC.

    Decided 27 Apr 2026 Amendments

Timeline

Dates from the published record

  1. 16 Jul 2025

    Received by Cardiff

  2. 18 Jul 2025

    Validated

    Checked as complete and ready for consideration.

  3. 16 Sep 2025

    Decision issued: Permission Granted

  4. 6 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/00205/NMA Granted

    5 Cyncoed Avenue Cyncoed Cardiff CF23 6ST

    Proposed Non-Material Amendment to Planning Permission 25/01653/HSE- Change proposed windows, down pipes and soffits from aluminium to UPVC.

    Decided 27 Apr 2026 Amendments

Who's behind it

Company information only, from the register and Companies House

Llwyd Jones Architects Agent, an architecture practice

2 applications on PlanIndex

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See their track record

Documents

Plans, drawings, consultee responses and the officer's report

17 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this grant of permission means

Cardiff granted permission on 16 September 2025, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 5 Cyncoed Avenue Cyncoed Cardiff CF23 6ST

    26/00205/NMA Submitted 2 Feb 2026 50 yards away

    Proposed Non-Material Amendment to Planning Permission 25/01653/HSE- Change proposed windows, down pipes and soffits from aluminium to UPVC.

    Granted Amendments Windows or glazing 4 docs

  • 2 Cyncoed Avenue Cyncoed Cardiff CF23 6SU

    21/01809/DCH Submitted 20 Jul 2021 100 yards away

    DETACHED GARAGE AND GARDEN ROOM ADJACENT TO MAIN DWELLING

    Granted Householder 5 docs
    Small domestic

  • 264 Cyncoed Road Cyncoed Cardiff CF23 6RU

    26/00259/WTTPP Submitted 6 Feb 2026 100 yards away

    Pruning works as per submitted James Pinder Treecare Consulting report

    Withdrawn Trees 1 doc

  • 22 Cyncoed Avenue Cyncoed Cardiff CF23 6SU

    26/00980/WTTPP Submitted 12 May 2026 100 yards away

    Tree Type: Beech tree in garden, abutting the boundary of Cyncoed Crescent going up to Cyncoed Avenue. Proposed Work: Crown reduction by 1.5 metres. Cutting to strong fork.

    Granted Trees 4 docs

  • All Saints Parish Church Cyncoed Road Cyncoed Cardiff CF23 6RT

    22/02598/FUL Submitted 1 Nov 2022 100 yards away

    Minor alterations to the external fabric: insertion of new stained glass window to principal elevation; new double entrance doors to South Chapel; and new rear access door and window

    Granted Full applications Windows or glazing 10 docs

  • 266B Cyncoed Road Cyncoed Cardiff CF23 6RW

    26/01147/WTTPFP Submitted 3 Jun 2026 150 yards away

    Oak, rear garden - Remove suckers on main stem to first branch break. Very minor crown raise of no more than 1m on the foliage that droops lowest to even up lower crown and maintain edge, foliage tip reduction only. Remove any unstable deadwood over 25mm in diameter.

    Granted Trees 8 docs

In Cardiff

  • 26/02112/HSE Awaiting decision

    7 Penydarren Drive Whitchurch Cardiff CF14 2TT

    Proposed Single Storey Side/Rear Extension with Garage Conversion

    Received 7 Oct, published by the council 9 Oct 2026 Householder
  • 26/02113/HSE Awaiting decision

    78 Mill Road Lisvane Cardiff CF14 0UG

    PROPOSED FIRST FLOOR EXTENSION AT SIDE OF HOUSE

    Received 7 Oct, published by the council 9 Oct 2026 Householder
  • 26/01702/HSE Granted

    45 Gwern Rhuddi Road Cyncoed Cardiff CF23 6PS

    Two storey and single storey rear extensions (development similar to that as approved under 25/00533/HSE with additional first floor part).

    Received 10 Aug, published by the council 24 Aug 2026 Householder
  • 26/02104/HSE Awaiting decision

    15 Brynteg Rhiwbina Cardiff CF14 6TS

    Proposed single storey rear extension to the existing semi-detached dwelling including minor internal and external modifications

    Received 6 Oct, published by the council 9 Oct 2026 Householder
  • 26/02102/HSE Awaiting decision

    49 Kimberley Road Penylan Cardiff CF23 5DL

    Proposed ground floor rear side return extension

    Received 6 Oct, published by the council 9 Oct 2026 Householder