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Planning application

20 Mill Road Tongwynlais Cardiff CF15 7JP

Granted Cardiff 23/02511/HSE Householder Planning Permission

Works: Extension 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

Refurbishment, alteration and extension.

As published by the council, reference 23/02511/HSE

Application record

Reference
23/02511/HSE
Type
Householder Planning Permission
Status
Decided
Decision
Granted As published: Permission Granted
Received
26 Oct 2023
Validated
30 Oct 2023
Decided
17 Dec 2024
Ward
WHITCHURCH AND TONGWYNLAIS
Decision by
Chair Decision
Postcode
CF15 7JP

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2023: 2 approved, 0 refused.

  • 25/01327/DOC Granted

    20 Mill Road Tongwynlais Cardiff CF15 7JP

    Discharge of Condition 4 (Construction Method Statement) of 23/02511/HSE.

    Decided 18 Aug 2025 Conditions

Timeline

Dates from the published record

  1. 26 Oct 2023

    Received by Cardiff

  2. 30 Oct 2023

    Validated

    Checked as complete and ready for consideration.

  3. 17 Dec 2024

    Decision issued: Permission Granted

  4. 22 Sep 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Rchitecture Ltd Agent, registered in Newcastle Upon Tyne

Active · incorporated 2013 · Newcastle Upon Tyne

39 applications on PlanIndex · across 7 councils · 93% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

51 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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What this grant of permission means

Cardiff granted permission on 17 December 2024, 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

  • 20 Mill Road Tongwynlais Cardiff CF15 7JP

    25/01327/DOC Submitted 9 Jun 2025 50 yards away

    Discharge of Condition 4 (Construction Method Statement) of 23/02511/HSE.

    Granted Conditions 8 docs

  • 3 Wellington Street Tongwynlais Cardiff CF15 7LP

    24/00968/HSE Submitted 26 Apr 2024 50 yards away

    New 2 Storey Side & Rear Extension with demolition of existing shed. Retrospective consent required for existing Garden Room.

    Granted Householder Extension Demolition 9 docs
    Small domestic

  • 46 Castell Coch View Tongwynlais Cardiff CF15 7LA

    22/00278/DCH Submitted 9 Feb 2022 50 yards away

    CONSTRUCTION OF A SINGLE STOREY EXTENSION TO CREATE AN NEW INTEGRAL DOUBLE GARAGE

    Granted Householder Extension 12 docs
    Small domestic

  • 46 Castell Coch View Tongwynlais Cardiff CF15 7LA

    24/02347/NMA Submitted 2 Oct 2024 50 yards away

    Proposed Non-Material Amendment to Planning Permission 22/00278/DCH - A raising of the roof ridge line, and an increase in the height of the garage door.

    Granted Amendments 8 docs

  • 5 St Michael's Close Tongwynlais Cardiff CF15 7LB

    25/02744/WTTPF Submitted 24 Nov 2025 100 yards away

    Works to groups G2 and G3 as per submitted tree report rear of 5 St Michael's Close.

    Granted Trees 4 docs

  • 45 Merthyr Road Tongwynlais Cardiff CF15 7LF

    25/00102/HSE Submitted 15 Jan 2025 150 yards away

    Demolition of existing single storey rear extension and outbuilding and construction of new single storey rear extension with balcony area. External alterations to existing house and rear workshop.

    Granted Householder Extension Demolition 10 docs
    Small domestic

In Cardiff

  • 26/00786/HSE Granted

    1 Dogo Street Pontcanna Cardiff CF11 9JJ

    Replacement of existing garage roof, enlargement of garage door opening, and rebuilding of traditional stone rear garden wall.

    Received 20 Apr, published by the council 22 Jul 2026 Householder
  • 26/01619/HSE Granted

    8 St Ina Road Heath Cardiff CF14 4LS

    Garage demolition, replaced with single storey extension linked to house

    Received 31 Jul, published by the council 6 Aug 2026 Householder
  • 26/01492/HSE Granted

    24 Heol Stradling Whitchurch Cardiff CF14 1PW

    Demolish existing rear extension and construct new single storey extension

    Received 20 Jul, published by the council 6 Aug 2026 Householder
  • 26/01755/HSE Granted

    70 Heol Nant Glandulas Lisvane Cardiff CF14 0AB

    Rear conservatory extension.

    Received 18 Aug, published by the council 24 Aug 2026 Householder
  • 26/01410/HSE Granted

    85 Newfoundland Road Gabalfa Cardiff CF14 3LB

    Installation of a Air Source Heat Pump.

    Received 7 Jul, published by the council 22 Jul 2026 Householder