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Planning application

HVDC Converter Station Arnish Isle Of Lewis

Awaiting decision Na h-Eileanan Siar 26/00103/MSCM Matters Specified in Conditions Major

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

Proposal

Approval of Matters Specified in Condition 3a i - 3a xi - (Enabling Works) pursuant to Planning Permission Ref: 25/00061/PPPM for the Proposed Construction and Operation of a Strategic Electricity Transmission Hub Consisting of a 400kV AC Substation, an HVDC Converter Station, etc (National Development)

As published by the council, reference 26/00103/MSCM

Application record

Reference
26/00103/MSCM
Type
Matters Specified in Conditions Major
Status
Awaiting decision
Received
13 Mar 2026
Validated
30 Mar 2026
Ward
Steòrnabhagh A Tuath
Parish
North Lochs
Decision by
Delegate Decision

Site history

Applications at this address on the Na h-Eileanan Siar register

This site has had 12 applications since 2026: 10 approved, 0 refused.

  • 26/00183/DISCON Awaiting decision

    HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Condition 10 pertaining to Planning Permission 25/00061/PPPM - Peat Management Plan

    Submitted 22 May 2026 Conditions
  • 26/00185/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Condition 27 pertaining to Planning Permission 25/00061/PPPM - Archaeology - Fencing

    Decided 31 Jul 2026 Conditions
  • 26/00184/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Condition 24 pertaining to Planning Permission 25/00061/PPPM - Socio Economic Strategy

    Decided 18 Sep 2026 Conditions
  • 26/00163/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 28 pertaining to Planning Permission 25/00061/PPPM - Archaeology - Watching Brief

    Decided 8 May 2026 Conditions
  • 26/00150/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 26 pertaining to Planning Permission 25/00061/PPPM - Archaeology Excavation written scheme of investigation

    Decided 4 May 2026 Conditions
  • 26/00135/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 9 pertaining to Planning Permission 25/00061/PPPM - Neighbour Protocol

    Decided 31 Jul 2026 Conditions
  • 26/00134/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 5 pertaining to Planning Permission 25/00061/PPPM - Environmental/Ecological Clerk of Works

    Decided 8 May 2026 Conditions
  • 26/00133/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Condition 4 pertaining to Planning Permission 25/00061/PPPM - Planning Monitoring Officer - Details of PMO appointment

    Decided 7 May 2026 Conditions
  • 26/00138/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 14 pertaining to Planning Permission 25/00061/PPPM - Construction Traffic Management Plan

    Decided 10 Aug 2026 Conditions
  • 26/00136/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 11 pertaining to Planning Permission 25/00061/PPPM - Geotechnical Clerk of Works

    Decided 8 May 2026 Conditions

Timeline

Dates from the published record

  1. 13 Mar 2026

    Received by Na h-Eileanan Siar

  2. 30 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 27 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 29 June 2026, 13 weeks from validation under the statutory target. Extensions of time are common and are agreed case by case.

    Na h-Eileanan Siar took a median of 58 days over the applications it decided in the last year.

Cases linked to this one on the register

  • Application: 25/00061/PPPM (Decided)

Documents

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

89 documents on file for this application

  • LANDSCAPE MITIGATION STRATEGY REVIEW Supporting Information · 03 Sep 2026
  • APPLICANTS AGREEMENT TO EXTENSION OF TIME Other · 11 Aug 2026
  • REQUEST FOR EXTENSION OF TIME Other · 10 Aug 2026
  • PSAD FORM 22.07.26 Other · 27 Jul 2026
  • 3A III PROPOSED SITE ACCESS (ARNISH ROAD) Drawing · 27 Jul 2026
  • 3A III -PROPOSED SITE ACCESS (A859) Drawing · 27 Jul 2026
  • 3A III- RCC DRAWING Other · 13 Jul 2026
  • 3A III - SSEN COVER LETTER RE ROADS 13 JULY Other · 13 Jul 2026
  • 3A III- AMENDED -JUNCTION VISIBILITY A859-P05 Drawing · 13 Jul 2026
  • 3A III- AMENDED - PROPOSED SITE ACCESS A859 AIL SWEPT P Drawing · 13 Jul 2026
  • 3A III- AMENDED- PROPOSED SITE ACCESS ARNISH ROAD AIL S Drawing · 13 Jul 2026
  • 3A III- ADDITIONAL - PROPOSED SITE ACCESS A859 MAX LEGAL Drawing · 13 Jul 2026
  • 3A III- ADDITIONAL- PROPOSED SITE ACCESS ARNISH ROAD M Drawing · 13 Jul 2026
  • 3A III- ADDITIONAL - JUNCTION VISIBILITY ARNISH ROAD P0 Drawing · 13 Jul 2026
  • PSAD - 13:7:26 RE ROADS DRAWINGS Other · 13 Jul 2026
  • 3A VI - DRAINAGE STRATEGY CNES RESPONSE 2 Consultation · 08 Jul 2026
  • 3A IX - LANDSCAPE MITIGATION STRATEGY 1 OF 2 Supporting Information · 01 Jul 2026
  • 3A IX - LANDSCAPE MITIGATION STRATEGY 2 OF 2 Supporting Information · 01 Jul 2026
  • PSAD - LANDSCAPE Other · 01 Jul 2026
  • BUILDING STANDARDS - RESPONSE Consultation · 29 Jun 2026
  • 3A X ENVIRONMENTAL HEALTH - RESPONSE 2 Consultation · 29 Jun 2026
  • 3A II - PEAT MANAGEMENT PLAN Supporting Information · 12 Jun 2026
  • 3A II - PEAT MANAGEMENT PLAN - APPENDIX D5-D7 Supporting Information · 12 Jun 2026
  • 3A II - PEAT MANAGEMENT PLAN - APPENDIX D1-D4 Supporting Information · 12 Jun 2026
  • SEPA - CONSULTATION RESPONSE 2 Consultation · 11 Jun 2026
  • 3A VI - DRAINAGE STRATEGY CNES RESPONSE 1 Consultation · 08 Jun 2026
  • 3A IV UPDATED EXTENDED EARTHWORKS PEAT SECTIONS Drawing · 03 Jun 2026
  • 3A IV - EXTENDED EARTHWORKS SECTIONS Drawing · 03 Jun 2026
  • 3A IV - EXTENDED EARTHWORKS SECTIONS LAYOUT Drawing · 03 Jun 2026
  • 3A I - AMENDED ENABLING WORKS PHASING PLAN Other · 03 Jun 2026
  • 3A III ROADS - RESPONSE 1 Consultation · 02 Jun 2026
  • HES - RESPONSE Consultation · 30 Apr 2026
  • 3 A X ENVIRONMENTAL HEALTH - RESPONSE 1 Consultation · 30 Apr 2026
  • SEPA CONSULTATION RESPONSE 1 Consultation · 23 Apr 2026
  • SCOTTISH WATER - RESPONSE Consultation · 13 Apr 2026
  • SG ADVERT Other · 02 Apr 2026
  • LIST OF NEIGHBOURS NOTIFIED Other · 31 Mar 2026
  • APPLICATION COVER LETTER AMSC Application · 30 Mar 2026
  • 3A X - NOISE IMPACT ASSESSMENT (NIA) (CONSTRUUCTION) Supporting Information · 30 Mar 2026
  • 3A X- NOISE IMPACT TECHNICAL APPENDIX 1 - LEGISLATION POLICY AND GUIDANCE Supporting Information · 30 Mar 2026
  • 3A X - NOISE IMPACT TECHNICAL APPENDIX 2 - METHOD OF ASSESSMENT Supporting Information · 30 Mar 2026
  • 3A X - NOISE IMPACT TECHNICAL APPENDIX 3 - CONSTRUCTION ACTIVITIES Supporting Information · 30 Mar 2026
  • 3A X - NOISE IMPACT TECHNICAL APPENDIX 4 - CONSTRUCTION NOISE IMPACT ASSESSM Supporting Information · 30 Mar 2026
  • REG 15 COVER LETTER Application · 24 Mar 2026
  • REG 15 CETRIFICATE CORRECTION Application · 24 Mar 2026
  • 3A IX - LANDSCAPE - LHMP DRAWINGS Drawing · 13 Mar 2026
  • 3A IX - LANDSCAPE - APPENDIX 1A 3D VISUALS - Drawing · 13 Mar 2026
  • 3A IX - LANDSCAPE - APPENDIX 2 LHMP - PEAT AREAS CROSS SECTIONS Drawing · 13 Mar 2026
  • 3A IX - LANDSCAPE - APPENDIX 3 LHMP APPENDIX 3 - SCREENING BUNDS CROSS SECTIONS Drawing · 13 Mar 2026
  • 3A IX - LANDSCAPE - AND HABITAT MANAGEMENT PLAN Supporting Information · 13 Mar 2026
  • 3A X - CONSTRUCTION NOISE IMPACT STUDY AREA FIGURE 11_1 Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE TYPICAL DETAILS SHEET 1 OF 3 Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE TYPICAL DETAILS SHEET 2 OF 3 Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE TYPICAL DETAILS SHEET 3 OF 3 Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE - PLATFORM 1 OUTFALL 1 SUDS PLAN AND LONGSECTION Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE - PLATFORM 1 NETWORK 2 - SUDS PLAN AND LONGSECTION Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE PLATFORM 2 OUTFALL 3 SUDS PLAN AND LONGSECTION Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE - PLATFORM 2 NETWORK 4 - SUDS PLAN AND LONGSECTION Drawing · 13 Mar 2026
  • 3A VII - FOUL DRAINAGE LONGSECTIONS Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE - PLATFORM 2 NETWORK 5 - SUDS PLAN AND LONGSECTIO Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE OVERALL LAYOUT Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTIONS - LAYDOWN 2 AND WEST ACCESS ROAD A859 Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTIONS - HVDC AND SUBSTATIONS - SHEET 1 Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTIONS - HVDC AND SUBSTATIONS - SHEET 2 Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTIONS - LAYDOWN 3 AND ARNISH ACCESS ROAD Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTION -EASTERN SCREENING BUND Drawing · 13 Mar 2026
  • 3A IV - PLAN AND SECTION WESTERN SCREENING BUND Drawing · 13 Mar 2026
  • 3A IV - PLANS AND SECTIONS - WHOLE SITE EARTHWORKS Drawing · 13 Mar 2026
  • 3A IV - SITE PLAN WITH CROSS SECTION OVERVIEW Drawing · 13 Mar 2026
  • 3A I - PHASING PLAN ENABLING WORKS Other · 13 Mar 2026
  • 3A VIII - ENCLOSURES TYPICAL CONSTRUCTION - PHASE 1 Drawing · 13 Mar 2026
  • 3A VIII - ENCLOSURES PLAN - PHASE 1 Drawing · 13 Mar 2026
  • 3A III - ROAD CONSTRUCTION DETAILS Drawing · 13 Mar 2026
  • 3A V - PHASE 1 CONSTRUCTION COMPOUND Drawing · 13 Mar 2026
  • 3A II- SITE PLAN FINALISED LAYOUT Drawing · 13 Mar 2026
  • 3A II- SITE PLAN FINALISED LAYOUT WITH PEAT DEPTH OVERLAY Drawing · 13 Mar 2026
  • 3A II - SITE LOCATION PLAN Drawing · 13 Mar 2026
  • 3A VI - DRAINAGE STRATEGY Other · 13 Mar 2026
  • APPLICATION FORM Application Form · 13 Mar 2026

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What happens while it is decided

This application is with Na h-Eileanan Siar for determination, against a statutory target of thirteen weeks. Over the last year Na h-Eileanan Siar decided condition discharge and variation applications in a median of 71 days. More in our guide to how long planning decisions take.

About condition discharge and variation applications

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Scottish And Southern Electricity Networks HVDC Converter Station Arnish Isle Of Lewis

    26/00278/DISCON Submitted 13 Jul 2026 50 yards away

    Request to Discharge Conditions 7 & 8 pertaining to Planning Permission 25/00061/PPPM - Condition 7 - Burrow Pit Plan, Condition 8 - Blasting & Vibration

    Granted Conditions 5 docs
  • HVDC Converter Station Arnish Isle Of Lewis

    26/00183/DISCON Submitted 22 May 2026 50 yards away

    99% historically approved · decision due ~17 Jul

    Request to Discharge Condition 10 pertaining to Planning Permission 25/00061/PPPM - Peat Management Plan

    Awaiting decision Conditions 16 docs
  • HVDC Converter Station Arnish Isle Of Lewis

    26/00185/DISCON Submitted 22 May 2026 50 yards away

    Request to Discharge Condition 27 pertaining to Planning Permission 25/00061/PPPM - Archaeology - Fencing

    Granted Conditions 2 docs
  • HVDC Converter Station Arnish Isle Of Lewis

    26/00184/DISCON Submitted 22 May 2026 50 yards away

    Request to Discharge Condition 24 pertaining to Planning Permission 25/00061/PPPM - Socio Economic Strategy

    Granted Conditions 3 docs
  • HVDC Converter Station Arnish Isle Of Lewis

    26/00150/DISCON Submitted 27 Apr 2026 50 yards away

    Request to discharge Condition 26 pertaining to Planning Permission 25/00061/PPPM - Archaeology Excavation written scheme of investigation

    Granted Conditions 1 doc
  • Scottish And Southern Electricity Networks HVDC Converter Station Arnish Isle Of Lewis

    26/00271/DISCON Submitted 9 Jul 2026 50 yards away

    99% historically approved · decision due ~3 Sep

    Request to Discharge Conditions 6, 19 and 23 pertaining to Planning Permission 25/00061/PPPM - Condition 6 - Construction Environmental Management Plan; Condition 19 - Constrcution Noise Management Plan; Condition 23 - Schedule of Environmental Mitigation

    Awaiting decision Conditions 30 docs

In Na h-Eileanan Siar

  • 26/00184/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Condition 24 pertaining to Planning Permission 25/00061/PPPM - Socio Economic Strategy

    Received 22 May, published by the council 27 Jul 2026 Conditions
  • 26/00137/DISCON Granted

    HVDC Converter Station Arnish Isle Of Lewis

    Request to discharge Condition 12 pertaining to Planning Permission 25/00061/PPPM - Habitat Management and Monitoring Plan

    Received 15 Apr, published by the council 27 Jul 2026 Conditions
  • 26/00234/MSC Granted

    3 Ardvourlie North Harris Isle Of Harris

    Erection of dwelling house and shed. Installation of septic tank

    Received 19 Jun, published by the council 27 Jul 2026 Conditions
  • 26/00278/DISCON Granted

    Scottish And Southern Electricity Networks HVDC Converter Station Arnish Isle Of Lewis

    Request to Discharge Conditions 7 & 8 pertaining to Planning Permission 25/00061/PPPM - Condition 7 - Burrow Pit Plan, Condition 8 - Blasting & Vibration

    Received 13 Jul, published by the council 11 Aug 2026 Conditions
  • 26/00336/DISCON Awaiting decision

    Hebrides People Visitor Centre Northton South Harris Isle Of Harris HS3 3JA

    Request to Discharge Conditions pertaining to Planning Permission 23/00505/PPD - Condition 4. Contaminated Land Investigation; Condition 8. Dust Mitigation; Condition 12. Biodiversity enhancement measures; Condition 13. External Lighting and Condition 15. Traffic management plan

    Received 11 Aug, published by the council 1 Sep 2026 Conditions