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Planning application

County Hall Atlantic Wharf Butetown Cardiff CF10 4UW

Awaiting decision Cardiff 26/01645/RES Reserved Matters

Works: Demolition

Relates to 26/00425/VAR

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

Proposal

Application for the approval of reserved matters (appearance, scale, layout, landscaping and access) for Phase 2 and 2A of hybrid/outline planning permission 26/00425/VAR for a new Commercial Office (Use Class B1) (as a replacement for County Hall) and Leisure Floorspace (Use Class D1/D2) (associated with the Wales Millennium Centre), together with temporary and permanent road infrastructure, landscaping, drainage, active travel routes, demolition, engineering and remediation works, and the creation of future serviced development plots.

As published by the council, reference 26/01645/RES

Application record

Reference
26/01645/RES
Type
Reserved Matters
Status
Registered
Received
3 Aug 2026
Validated
3 Aug 2026
Ward
BUTETOWN
Postcode
CF10 4UW

Site history

Applications at this address on the Cardiff register

This site has had 3 applications since 2026: 1 approved, 0 refused.

  • 26/01340/DOC Awaiting decision

    County Hall Atlantic Wharf Butetown Cardiff CF10 4UW

    Partial discharge of conditions 10 (Waste Strategy) and 21 (Extraction Fumes) of 26/00425/VAR.

    Submitted 26 Jun 2026 Conditions
  • 26/01200/NMA Granted

    County Hall Atlantic Wharf Butetown Cardiff CF10 4UW

    Proposed Non-Material Amendment to Planning Permission 26/00425/VAR- 1) Hotel elevation treatment updated from composite sandwich panel to metal plank system; 2) Relocation of north east roof plant to the rear elevation, and increased extent of western plant room; 3) Introduction of Air Source Heat Pumps (ASHPs) to the hotel roof in the north-east corner; 4) Plant screen extents to roof updated; 5) Guardrail added to parts of roof as edge protection; 6) Ground floor external doors have been updated on the hotel front elevation (north elevation); 7) Proposed external louvres on the hotel rear elevation (south elevation). 3no. louvres are proposed at ground floor level and 3no. are proposed at Level 1; 8) Cladding on the southern elevation has dropped circa 250mm above the under-croft car park; 9) Non-vision spandrel panels added to curtain walling at ground level; 10) Feature gold band flashing extended to meet external door on east elevation; and 11) Bike store relocated at ground floor closer to hotel entrance.

    Decided 14 Jul 2026 Amendments

Timeline

Dates from the published record

  1. 3 Aug 2026

    Received by Cardiff

  2. 13 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 28 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 56 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 26/00425/VAR Granted

    Red Dragon Centre And County Hall Atlantic Wharf Cardiff

    A variation of condition application made pursuant to Section 73 of The Town and Country Planning Act 1990 to vary Conditions 27 (Phasing Plan), 33 (Design Code), 35 (Maximum Height Parameter Plan) and 38 (Use Class Restrictions) of the outline planning permission within hybrid planning permission reference: 23/01705/VAR, which approved: HYBRID PLANNING APPLICATION FOR THE PROPOSED DEVELOPMENT OF PART OF A MIXED USE MASTERPLAN WITHIN THE INNER HARBOUR, CARDIFF BAY. INCLUDING OUTLINE DETAILS FOR UP TO 890NO. RESIDENTIAL DWELLINGS (USE CLASS C3), 1,090NO. HOTEL BED SPACES (USE CLASS C1), 19,500SQM OF EMPLOYMENT FLOORSPACE (USE CLASS B1), 27,500SQM OF LEISURE FLOORSPACE (USE CLASSES D1 AND D2) AND 12,310SQM OF RETAIL FLOORSPACE (USE CLASSES A1 AND A3). PLUS ASSOCIATED PUBLIC REALM, OPEN SPACE, HARD AND SOFT LANDSCAPING, DRAINAGE, WALKING, CYCLING, CAR PARKING AND OTHER TRANSPORT INFRASTRUCTURE. TOGETHER WITH FULL DETAILS FOR A MULTI-USE, INDOOR ARENA (USE CLASS D2) WITH SUPPORTING USES AND CAFE (USE CLASS A3) A 182NO. BED SPACE HOTEL (USE CLASS C1) PLUS ASSOCIATED PUBLIC REALM, HARD AND SOFT LANDSCAPING, DRAINAGE, WALKING, CYCLING, CAR PARKING AND OTHER TRANSPORT INFRASTRUCTURE (Approved 23 February 2024 - 23/01705/VAR):- The scheme is proposed to be amended as follows: 1) Amend Phasing Plans; 2) Amend land use; and 3) Amend Green Infrastructure Parameters.

    Decided 4 Jun 2026 Amendments

Who's behind it

Company information only, from the register and Companies House

Arup Agent, registered in London

Active · incorporated 1990 · London

254 applications on PlanIndex · across 56 councils · 99% 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

137 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff's median decision took 56 days. More in our guide to how long planning decisions take.

About reserved matters applications

A reserved matters application fills in the detail held back from an earlier outline permission, judged against that permission rather than the principle of development. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 63 - 97 Galleon Way Butetown Cardiff CF10 4JB

    24/02262/NMA Submitted 23 Sep 2024 100 yards away

    Proposed Non-Material Amendment to Planning Permission 00/01206/C- Removal of existing insulated render to 2 elevations and replaced with render of the same appearance

    Granted Amendments 9 docs
  • County Hall Atlantic Wharf Butetown Cardiff CF10 4UW

    26/01200/NMA Submitted 10 Jun 2026 100 yards away

    Proposed Non-Material Amendment to Planning Permission 26/00425/VAR- 1) Hotel elevation treatment updated from composite sandwich panel to metal plank system; 2) Relocation of north east roof plant to the rear elevation, and increased extent of western plant room; 3) Introduction of Air Source Heat Pumps (ASHPs) to the hotel roof in the north-east corner; 4) Plant screen extents to roof updated; 5) Guardrail added to parts of roof as edge protection; 6) Ground floor external doors have been updated on the hotel front elevation (north elevation); 7) Proposed external louvres on the hotel rear elevation (south elevation). 3no. louvres are proposed at ground floor level and 3no. are proposed at Level 1; 8) Cladding on the southern elevation has dropped circa 250mm above the under-croft car park; 9) Non-vision spandrel panels added to curtain walling at ground level; 10) Feature gold band flashing extended to meet external door on east elevation; and 11) Bike store relocated at ground floor closer to hotel entrance.

    Granted Amendments Windows or glazing 10 docs
  • Red Dragon Centre And County Hall Atlantic Wharf Cardiff

    26/00425/VAR Submitted 2 Mar 2026 100 yards away

    A variation of condition application made pursuant to Section 73 of The Town and Country Planning Act 1990 to vary Conditions 27 (Phasing Plan), 33 (Design Code), 35 (Maximum Height Parameter Plan) and 38 (Use Class Restrictions) of the outline planning permission within hybrid planning permission reference: 23/01705/VAR, which approved: HYBRID PLANNING APPLICATION FOR THE PROPOSED DEVELOPMENT OF PART OF A MIXED USE MASTERPLAN WITHIN THE INNER HARBOUR, CARDIFF BAY. INCLUDING OUTLINE DETAILS FOR UP TO 890NO. RESIDENTIAL DWELLINGS (USE CLASS C3), 1,090NO. HOTEL BED SPACES (USE CLASS C1), 19,500SQM OF EMPLOYMENT FLOORSPACE (USE CLASS B1), 27,500SQM OF LEISURE FLOORSPACE (USE CLASSES D1 AND D2) AND 12,310SQM OF RETAIL FLOORSPACE (USE CLASSES A1 AND A3). PLUS ASSOCIATED PUBLIC REALM, OPEN SPACE, HARD AND SOFT LANDSCAPING, DRAINAGE, WALKING, CYCLING, CAR PARKING AND OTHER TRANSPORT INFRASTRUCTURE. TOGETHER WITH FULL DETAILS FOR A MULTI-USE, INDOOR ARENA (USE CLASS D2) WITH SUPPORTING USES AND CAFE (USE CLASS A3) A 182NO. BED SPACE HOTEL (USE CLASS C1) PLUS ASSOCIATED PUBLIC REALM, HARD AND SOFT LANDSCAPING, DRAINAGE, WALKING, CYCLING, CAR PARKING AND OTHER TRANSPORT INFRASTRUCTURE (Approved 23 February 2024 - 23/01705/VAR):- The scheme is proposed to be amended as follows: 1) Amend Phasing Plans; 2) Amend land use; and 3) Amend Green Infrastructure Parameters.

    Granted Amendments 52 docs
  • County Hall Atlantic Wharf Butetown Cardiff CF10 4UW

    26/01340/DOC Submitted 26 Jun 2026 100 yards away

    100% historically approved · decision due ~21 Aug

    Partial discharge of conditions 10 (Waste Strategy) and 21 (Extraction Fumes) of 26/00425/VAR.

    Awaiting decision Conditions 6 docs
  • Red Dragon Centre And County Hall Atlantic Wharf Cardiff

    24/00784/DOC Submitted 5 Apr 2024 100 yards away

    Discharge of Condition 20 (Construction Environmental Management Plan) of 23/01705/VAR

    Granted Conditions 11 docs
  • Red Dragon Centre And County Hall Atlantic Wharf Cardiff

    25/02951/NMA Submitted 17 Dec 2025 100 yards away

    Proposed Non-Material Amendment to Planning Permission 23/01705/VAR - 1) Amend the southern elevation swoop material. 2) Remove the glazed panels between the curtain walling door sets on the southern elevation. 3) Additional transom introduced above the service access door on the western curtain walling arch.

    Granted Amendments Windows or glazing 13 docs

In Cardiff

  • 26/01715/RES Withdrawn

    Parcel 2D Green Corridor Land Between Llantrisant Road And Rhodfa Plasdwr Plasdwr Cardiff

    Reserved matters (appearance, scale, layout, landscaping and non-strategic access) pursuant to outline planning permission 14/02733/MJR for the development of a green corridor, including informal open space, with associated hard and soft landscaping, drainage, engineering and infrastructure works.

    Received 11 Aug, published by the council 29 Aug 2026 Reserved matters
  • 26/00570/RES Granted

    Phase 5B Land North Of M4 Junction 33 Creigiau Cardiff

    Approval of access, appearance, landscaping, layout and scale ("the reserved matters") as prescribed by conditions 1 (the Reserved Matters), 4 (Access), 7 (Rapid Transit Route), 8 (Car Parking), 9 (Cycle Parking), 12 (Adoptable Areas), 13 (Refuse), 14 (Levels), 15 (Landscaping), 16 (Biodiversity Through Design), 21 (Car Charging), 32 (Public Art), 44 (Road Traffic Noise), 48 (Foul Drainage) & 49 (Surface Water Drainage)

    Received 20 Mar, published by the council 22 Jul 2026 Reserved matters
  • 25/02764/RES Granted

    Phase 6A Of Land North Of Junction 33 Creigiau Cardiff

    Approval of access, appearance, landscaping, layout and scale ("the reserved matters") as prescribed by conditions 1 (The Reserved Matters), 4 (Access), 5 (Access to Site D), 7 (Rapid Transit Route), 8 (Car Parking), 9 (Cycle Parking), 12 (Adoptable Areas), 13 (Refuse), 14 (Levels), 15 (Landscaping), 16 (Biodiversity Through Design), 21 (Car Charging), 44 (Road Traffic Noise), 48 (Foul Drainage) & 49 (Surface Water Drainage) of 14/00852/DCO.

    Received 25 Nov, published by the council 22 Jul 2026 Reserved matters
  • 25/02832/RES Granted

    Parcel M2 Plasdwr North West Cardiff

    Application for the approval of reserved matters (appearance, scale, layout, landscaping and non-strategic access) pursuant to outline planning permission 14/02733/MJR for the development of temporary drainage (foul and surface) infrastructure to serve Parcel M2 as well as associated landscaping, engineering and infrastructure works.

    Received 28 Nov, published by the council 22 Jul 2026 Reserved matters
  • 26/00559/RES Awaiting decision

    Primary Electrical Substation Off Ty Draw Rd Land South Of The M4 To The East Of Lisvane And To The West Of Pontprennau And North Of Cyncoed Cardiff CF15 0PF

    Application for the approval of reserved matters pursuant to outline planning permission 19/02330/MJR for the development of a Primary Electrical Substation, including temporary access and associated engineering works.

    Received 20 Mar, published by the council 22 Jul 2026 Reserved matters