34 Harriet Street Cathays Cardiff CF24 4BY

1. 5 Dec 2022

   Received by Cardiff

2. 10 Jan 2023

   Validated

   Checked as complete and ready for consideration.

3. 31 Jan 2023

   Decision issued: Application Withdrawn

4. 6 Aug 2026

   Added to PlanIndex

The applicant withdrew this application before the council decided it, so it carries no planning weight and no fee refund is automatic. Withdrawal often follows officer feedback that a refusal was likely.

The applicant is free to submit a revised application at any time, and many withdrawn schemes return in amended form, so the site is worth watching if the proposal affected you.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• Flat 4 And 5 44 Harriet Street Cathays Cardiff CF24 4BY

  26/01126/FUL Submitted 2 Jun 2026 30m away

  92% historically approved · decision due ~28 Jul

  Change of use from 2 no. 2-bedroom self-contained flats (Use class C3) to 2 no. 3-bedroom Houses in Multiple Occupation (Use Class C4).

  Awaiting decision Full applications New dwelling 8 docs

• 5 Fitzroy Street Cathays Cardiff CF24 4BL

  19/02922/DCH Submitted 4 Nov 2019 40m away

  LOFT CONVERSION WITH HIP TO GABLE ROOF EXTENSION, REAR DORMER ROOF EXTENSION AND INSTALLATION OF ROOFLIGHT TO FRONT ROOF ELEVATION

  Granted Lawful development Extension Loft or dormer 14 docs

• 33 Harriet Street Cathays Cardiff CF24 4BU

  25/01745/HSE Submitted 28 Jul 2025 48m away

  Ground floor rear extension to existing class C4 House in Multiple Occupation (HMO)

  Granted Householder Extension 7 docs
  Domestic

• 33 Harriet Street Cathays Cardiff CF24 4BU

  26/01615/NMA Submitted 28 Jul 2026 48m away

  Proposed Non-Material Amendment to Planning Permission 25/01745/HSE- increase extension roof height.

  Granted Amendments Extension 5 docs

• 48 Harriet Street Cathays Cardiff CF24 4BW

  22/02385/FUL Submitted 11 Oct 2022 56m away

  ALTERATIONS TO CREATE A CLASS C4 HOUSE IN MULTIPLE OCCUPATION

  Granted Full applications 10 docs

• 41 Harriet Street Cathays Cardiff CF24 4BW

  25/01375/FUL Submitted 13 Jun 2025 64m away

  Re-location of windows and conversion of loft to bedrooms to existing C4 House of multiple Occupation.

  Granted Full applications Windows or glazing 8 docs

• 26/01705/CLPUD Granted

  390 Cyncoed Road Cyncoed Cardiff CF23 6SA

  Use of 390 Cyncoed Road as residential accommodation for up to six adults with mental health conditions, living together as a single household, with care and support provided by non-resident staff

  11 Aug 2026 Lawful development
• 26/01807/CLPUD Awaiting decision

  33 Blossom Drive Lisvane Cardiff CF14 0BE

  Proposed single storey rear extension and conversion of integral garage

  25 Aug 2026 Lawful development
• 26/01476/CLPUD Granted

  71 Llandennis Avenue Cyncoed Cardiff CF23 6JF

  Single storey extension to side and rear.

  16 Jul 2026 Lawful development
• 26/01662/CLEUD Granted

  2 Llantwit Street Cathays Cardiff CF24 4AJ

  Use of the property as four self-contained flats.

  5 Aug 2026 Lawful development
• 26/01775/CLEUD Awaiting decision

  62 Cottrell Road Roath Cardiff CF24 3EZ

  Use of the property as 2 residential care flats (Class C2).

  20 Aug 2026 Lawful development