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Planning application

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

Granted Cardiff 26/00461/CLPUD Cert of Lawfulness Proposed (s192)

Works: Extension Demolition 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

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

As published by the council, reference 26/00461/CLPUD

Application record

Reference
26/00461/CLPUD
Type
Cert of Lawfulness Proposed (s192)
Status
Decided
Decision
Granted As published: Permission Granted
Received
9 Mar 2026
Validated
11 Mar 2026
Decided
21 Apr 2026
Ward
PONTPRENNAU AND OLD ST MELLONS
Decision by
Delegated to Group Leader
Postcode
CF3 5EZ

Timeline

Dates from the published record

  1. 9 Mar 2026

    Received by Cardiff

  2. 11 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Apr 2026

    Decision issued: Permission Granted

  4. 22 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

cfw architects ltd Agent, an architecture practice

114 applications on PlanIndex · across 13 councils · 96% granted

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Documents

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

11 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 21 April 2026, 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

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

    25/01362/HSE Submitted 12 Jun 2025 100 yards away

    Demolition of conservatory and construction of single storey rear extension.

    Granted Householder Extension Demolition 8 docs
    Small domestic

  • Plantos Day Nursery Wern Fawr House Eastern Business Park Wern Fawr Lane Old St Mellons Cardiff CF3 5XA

    21/01467/MNR Submitted 10 Jun 2021 150 yards away

    PROPOSED EXTENSION OF CURTILAGE AND INSTALLATION OF MODULAR BUILDING TO PROVIDE ADDITIONAL SPACE FOR EXISTING PLANTOS DAY NURSERY

    Granted Full applications Extension 18 docs

  • 23 Allen Close Old St Mellons Cardiff CF3 5DH

    23/00650/CLD Submitted 22 Mar 2023 150 yards away

    Provide solid roof and part solid walls / altered glazing to existing UPVC conservatory

    Granted Lawful development Extension Windows or glazing 7 docs

  • 1 White Oaks Drive Old St Mellons Cardiff CF3 5EX

    21/00275/DCH Submitted 3 Feb 2021 150 yards away

    TWO STOREY SIDE AND REAR EXTENSIONS WITH REMOVAL OF EXISTING CONSERVATORY, FRONT ENTRANCE PORCH EXTENSION COVERING TWO STOREYS, SIDE DORMER EXTENSIONS AND ADDITION OF NEW CROSSOVER ACCESS

    Granted Householder Extension Loft or dormer 10 docs
    Small domestic

  • 1 White Oaks Drive Old St Mellons Cardiff CF3 5EX

    21/01868/DCH Submitted 26 Jul 2021 150 yards away

    TWO STOREY SIDE AND REAR EXTENSIONS, FRONT ENTRANCE PORCH, SIDE DORMER EXTENSIONS AND REPOSITIONING OF ACCESS

    Granted Householder Extension Loft or dormer 10 docs
    Small domestic

  • 1 White Oaks Drive Old St Mellons Cardiff CF3 5EX

    22/00356/DCH Submitted 17 Feb 2022 150 yards away

    TWO STOREY SIDE AND REAR EXTENSIONS WITH FIRST FLOOR BALCONIES, FRONT ENTRANCE PORCH, SIDE DORMER AND REPOSITIONING OF ACCESS

    Granted Householder Extension Loft or dormer 13 docs
    Small domestic

In Cardiff

  • 26/01578/CLPUD Granted

    207 Fidlas Road Llanishen Cardiff CF14 5NA

    Proposed ancillary garden building

    Received 28 Jul, published by the council 6 Oct 2026 Lawful development
  • 26/02084/CLPUD Awaiting decision

    24 Bassetts Field Rhiwbina Cardiff CF14 9UG

    Proposed single storey flat roof extension to rear

    Received 2 Oct, published by the council 6 Oct 2026 Lawful development
  • 26/02050/CLPUD Awaiting decision

    First And Second Floor 85 Romilly Crescent Pontcanna Cardiff CF11 9NQ

    Change of use from Residential to C6 short-term let.

    Received 25 Sep, published by the council 6 Oct 2026 Lawful development
  • 26/02053/CLPUD Awaiting decision

    32 Homelands Road Heath Cardiff CF14 1UJ

    Single storey rear extension.

    Received 24 Sep, published by the council 6 Oct 2026 Lawful development
  • 26/01863/CLPUD Granted

    6 Llandennis Green Cyncoed Cardiff CF23 6JX

    Proposed conversion of existing integral garage to ancillary domestic accommodation, including minor internal alterations

    Received 4 Sep, published by the council 22 Sep 2026 Lawful development