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Planning application

25/02410/HSE

9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

Awaiting decision Cardiff Householder Planning Permission

Proposal

Alterations to Elevations, including Gable Forms and Flat Roof Extensions to property at first floor level, a first-floor rear roof terrace, and various other alterations to main property and to garage

As published by the council, reference 25/02410/HSE

Timeline

Dates from the published record

  1. 17 Oct 2025

    Received by Cardiff

  2. 21 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 22 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Cardiff for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • 26/00217/DOC Decided

    9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

    Discharge of Conditions 3 (Arboricultural Method Statement and Tree Protection) and 4 (Soft Landscaping) of 25/02410/HSE.

    4 Feb 2026 0m away Conditions
  • 25/02734/WTTPF Granted

    9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

    Removal of a section of hedge which includes 4 TPO trees

    24 Nov 2025 0m away Trees
  • 26/00906/FUL Awaiting decision

    Plot A Wern Fawr Lane Old St Mellons Cardiff CF3 5EA

    Development of a discount retail foodstore (Use Class A1), together with access, parking, external lighting, landscaping, drainage, and other associated site works.

    7 May 2026 176m away Full applications
  • 26/00461/CLPUD Granted

    54 Ty-to-maen Close Old St Mellons Cardiff CF3 5EZ

    Demolition of existing conservatory and construction of rear single storey extension and replacement of garage roof.

    9 Mar 2026 363m away Lawful development
  • 25/02754/HSE Granted

    Little Acre Druidstone Road Old St Mellons Cardiff CF3 6XD

    Conversion of the existing double garage into a home office, the erection of a garage and retention of rear structure.

    25 Nov 2025 485m away Householder

In Cardiff

  • 26/00074/HSE Granted

    201 Pantbach Road Rhiwbina Cardiff CF14 6AE

    Side dormer roof extensions. Two storey gabled rear extension with first floor Juliette balcony and external alterations to the property.

    15 Jan 2026 Householder
  • 26/01047/HSE Granted

    39 James Court Trowbridge Cardiff CF3 0FA

    Single storey rear extension.

    21 May 2026 Householder
  • 26/01054/HSE Granted

    38 Heol Iscoed Rhiwbina Cardiff CF14 6PB

    First floor rear extension, single storey side extension, demolition of existing garage.

    21 May 2026 Householder
  • 26/01058/HSE Granted

    37 Ridgeway Lisvane Cardiff CF14 0RS

    Demolition of existing garage, and erection of a single storey rear/side extension.

    22 May 2026 Householder
  • 26/01044/HSE Granted

    102 Wenallt Road Rhiwbina Cardiff CF14 6TP

    Single storey rear extension.

    20 May 2026 Householder