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Planning application

66 Monthermer Road Cathays Cardiff CF24 4QY

Awaiting decision Cardiff 26/01510/FUL Full Planning Permission

Works: New dwelling Extension

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Alterations and extensions to 8-bed HMO to form 4 x 1-bed apartments and 1 studio

As published by the council, reference 26/01510/FUL

Application record

Reference
26/01510/FUL
Type
Full Planning Permission
Status
Registered
Received
21 Jul 2026
Validated
21 Jul 2026
Ward
CATHAYS
Postcode
CF24 4QY

Timeline

Dates from the published record

  1. 21 Jul 2026

    Received by Cardiff

  2. 6 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 15 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Cardiff took a median of 55 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, a design practice

10 applications on PlanIndex · across 2 councils

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

Documents

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

7 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.

Trade members open them from here.

Open the documents

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 full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 80 Monthermer Road Cathays Cardiff CF24 4QY

    25/02210/CLPUD Submitted 25 Sep 2025 37m away

    93% historically approved · decision due ~20 Nov

    Rear and side dormer loft conversions.

    Awaiting decision Lawful development Loft or dormer 6 docs

  • 80 Monthermer Road Cathays Cardiff CF24 4QY

    25/00683/FUL Submitted 19 Mar 2025 37m away

    Conversion to four flats with rear ground floor extension and rear dormer loft conversion.

    Granted Full applications New dwelling Extension +1 12 docs
    Several homes

  • 80 Monthermer Road Cathays Cardiff CF24 4QY

    25/01030/FUL Submitted 6 May 2025 37m away

    Conversion of existing class C4 HMO to large sui generis house in multiple-occupation with ground floor rear extension and dormer loft conversions

    Withdrawn Full applications Extension Loft or dormer 9 docs

  • 48 Monthermer Road Cathays Cardiff CF24 4RA

    21/01133/MNR Submitted 4 May 2021 72m away

    DEMOLITION OF EXISTING LEAN TO SHED AND CONVERSION AND EXTENSION OF EXISTING COACH HOUSE INTO RESIDENTIAL DWELLING

    Granted Full applications Extension Demolition 9 docs
    Small domestic

  • 112 Tewkesbury Street Cathays Cardiff CF24 4QS

    22/03049/CLD Submitted 21 Dec 2022 75m away

    Rear Dormer Roof Extension and Rear Single Storey Extension

    Granted Lawful development Extension Loft or dormer 6 docs
    Small domestic

  • 72 Tewkesbury Street Cathays Cardiff CF24 4QT

    25/02255/HSE Submitted 1 Oct 2025 101m away

    92% historically approved · decision due ~26 Nov

    Retention of Ground and First Floor Rear Extensions, First Floor Flat Roof Rear Annex, Rear Dormer Roof Extension, and Associated Alterations.

    Awaiting decision Householder Extension Loft or dormer 11 docs
    Domestic

In Cardiff

  • 25/02269/FUL Granted

    No1 John Street John Street Butetown Cardiff CF10 5PE

    Proposal for roof plant encompassing DX Unit Condensers, Catering Kitchen and Kitchen Canopy Supply and Extract Handling Units

    2 Oct 2025 Full applications
  • 26/00351/FUL Granted

    202 Cathedral Road Pontcanna Cardiff CF11 9JF

    Side dormer roof extension, erection of railings and gate over front boundary walls, replacement of windows in existing openings at the front elevation, further external alterations to other elevations, new canopy alongside elevation, removal of rear & side boundary wall and erection of gate to rear alleyway. Demolition of existing garage and rear lean-to extension.

    19 Feb 2026 Full applications
  • 26/01606/FUL Granted

    BBC Roath Lock Studios Heol Porth Teigr Butetown Cardiff CF10 4GA

    External alterations to existing studio buildings including a new entrance canopy, rooftop set and associated operational development.

    29 Jul 2026 Full applications
  • 26/00649/FUL Granted

    434 Cowbridge Road East Canton Cardiff CF5 1JN

    Rear extensions, side dormer loft conversion, and additional two residential units with other associated works.

    30 Mar 2026 Full applications
  • 26/01673/FUL Granted

    4 Mackintosh Place Roath Cardiff CF24 4RQ

    Alterations to existing shopfront with associated external alterations

    5 Aug 2026 Full applications