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Planning application

15 Mark Street Riverside Cardiff CF11 6LL

Granted Cardiff 26/01168/HSE Renewal of previous permission

Works: Extension Domestic

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

Relates to 21/00991/DCH

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

Proposal

Renewal of planning permission 21/00991/DCH for a double storey rear extension.

As published by the council, reference 26/01168/HSE

Application record

Reference
26/01168/HSE
Type
Renewal of previous permission
Status
Decided
Decision
Permission Granted
Received
5 Jun 2026
Validated
5 Jun 2026
Decided
23 Jul 2026
Ward
RIVERSIDE
Decision by
Chair (1- 5 Reps)
Postcode
CF11 6LL

Site history

Applications at this address on the Cardiff register

This site has had 3 applications since 2021: 3 approved, 0 refused.

  • 26/01168/REN Granted

    15 Mark Street Riverside Cardiff CF11 6LL

    Renewal of planning permission 21/00991/DCH for a double storey rear extension.

    Decided 23 Jul 2026 Amendments
  • 21/00991/DCH Granted

    15 Mark Street Riverside Cardiff CF11 6LL

    DOUBLE STOREY REAR EXTENSION

    Decided 9 Jul 2021 Householder

Timeline

Dates from the published record

  1. 5 Jun 2026

    Received by Cardiff

  2. 22 Jul 2026

    Added to PlanIndex

  3. 23 Jul 2026

    Decision issued: Permission Granted

Cases linked to this one on the register

  • 21/00991/DCH Granted

    15 Mark Street Riverside Cardiff CF11 6LL

    DOUBLE STOREY REAR EXTENSION

    Decided 9 Jul 2021 Householder

Who's behind it

Company information only, from the register and Companies House

Black brick Studio LTD Agent, registered in Cardiff

Active · incorporated 2023 · Cardiff

19 applications on PlanIndex · across 4 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

14 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 23 July 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 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 500 metres

  • 15 Mark Street Riverside Cardiff CF11 6LL

    26/01168/REN Submitted 5 Jun 2026 0m away

    Renewal of planning permission 21/00991/DCH for a double storey rear extension.

    Granted Amendments Extension 14 docs

  • 15 Mark Street Riverside Cardiff CF11 6LL

    21/00991/DCH Submitted 20 Apr 2021 0m away

    DOUBLE STOREY REAR EXTENSION

    Granted Householder Extension 20 docs
    Domestic

  • Castlebridge 5 - 19 Cowbridge Road East Riverside Cardiff CF11 9BB

    26/00999/VAR Submitted 15 May 2026 50m away

    Roof, boundary and other external alterations. Installation of new PV panels. New glazed canopy over existing external courtyard. Block 1, Level 3 office extension. (Approved 25 April 2025- 25/00227/FUL):- Variation of Conditions 2 (Approved Plans) and 3 (Bat Surveys) of 25/00227/FUL to amend the approved scheme as follows: 1) Reduce glazing; 2) Introduce additional soft landscaping and greenery; 3) Amend Condition 3 wording to only apply to the roof works and works affecting roof structure rather than the entire development.

    Granted Amendments Extension Windows or glazing 7 docs

  • 27 Brook Street Riverside Cardiff CF11 6LG

    21/01791/DCH Submitted 16 Jul 2021 84m away

    SINGLE STOREY REAR EXTENSION

    Granted Householder Extension 8 docs
    Small domestic

  • 11 Coldstream Terrace Riverside Cardiff CF11 6LJ

    26/00053/FUL Submitted 12 Jan 2026 91m away

    Proposed Change of Use from Guesthouse to House in Multiple Occupation with Rear Dormer and Alterations to Existing Rear Outbuilding.

    Granted Full applications Loft or dormer 22 docs

  • Warden's Cottage Cowbridge Road East Sophia Gardens Cardiff

    21/01266/MNR Submitted 18 May 2021 144m away

    DISCHARGE OF CONDITION 11 (ARBORICULTURAL METHOD STATEMENT) OF 19/00507/MNR

    Granted Full applications 8 docs

In Cardiff

  • 26/01907/HSE Awaiting decision

    46 Oakley Place Grangetown Cardiff CF11 7EW

    Rear dormer roof extension.

    10 Sep 2026 Householder
  • 26/01013/HSE Granted

    74 Beulah Road Rhiwbina Cardiff CF14 6LY

    Rear, side and front extensions, raised roof ridge height, front and rear dormers and minor internal and external works.

    18 May 2026 Householder
  • 26/01611/HSE Granted

    6 Dewi Court 47 Cardiff Road Llandaff Cardiff CF5 2ET

    Replacement of existing sliding patio doors with french doors, increase height of existing garden boundary walls on 2 sides with trellis and installation of stand alone garden room.

    30 Jul 2026 Householder
  • 26/01592/HSE Granted

    20 Meadow Street Pontcanna Cardiff CF11 9PY

    Construction of single storey rear wrap around extension.

    29 Jul 2026 Householder
  • 26/01905/HSE Awaiting decision

    9 Clos William Rhiwbina Cardiff CF14 6QJ

    Single Storey Side/Rear Extension with Internal Alterations. Loft Reconfiguration with Dormers. Detached Garage Enlargement.

    9 Sep 2026 Householder