Marnix heads the firm's Planning and Infrastructure Consenting Team and advises on planning, highways, compulsory purchase and compensation law to clients in the transport, energy, housing and urban regeneration sectors.   His work includes advising on development consent orders, Transport and Works Act orders, de-risking planning applications, advising on strategic planning issues, public inquiries, whether in the context of an appeal, call-in or compulsory purchase order.  Marnix is currently advising rail and utility clients in connection with a number of development consent and Transport and Works Act order applications.  He is also working with leading developers on housing and mixed-use sites in London and across England providing strategic advice on their planning strategies, advising on and de-risking planning applications, negotiating section 106 agreements (including complex viability provisions) and advising on the Community Infrastructure Levy. He is also advising on a number of compulsory purchase orders.

Marnix's experience includes:

Infrastructure Consenting
  • Network Rail: advising NR on its representations to over 20 third party Development Consent Order applications.  Our role has included advising on all stages of the DCO process, drafting Written Representations and attending hearings.
  • Network Rail: advising NR on the promotion of a number of Transport and Works Act Order applications.
  • SSE: advising on the Development Consent Order application for a new gas-fired power station; Ferrybridge D, at Ferrybridge in Yorkshire.  Our work included advising on the consents strategy, reviewing the environmental documentation and drafting the Order.   
  • London Luton Airport Limited: advised on the planning application for the new Mass Passenger Transit system linking Luton Airport Parkway Station and the Terminal Building and on the promotion of the Transport and Works Act order application to facilitate the operation of the new system.  
  • South East Water: on its objections to National Grid's Richborough Connection Development Consent Order application to safeguard the site of its proposed reservoir at Broad Oak in Kent. This included becoming familiar with SEW's Water Resources Management Plan and considering the consents needed for the new reservoir.
Development planning and Regeneration
  • Advising Hub Residential on their planning application strategy and section 106 agreements for a number of Build to Rent and Co-Living Schemes across London and England.  
  • Advising Muse Developments on their planning applications and section 106 agreements for a number of schemes in London. 
  • Marnix has published articles in Planning, Property Week, The Guardian, Construction News
  • Dutch - good command
Professional memberships
  • Compulsory Purchase Association 
  • National Infrastructure Planning Association
  • Member of the British Property Federation's Planning Committee
  • Chair of the BPF's Co-Living Working Group

Chambers Guide:

  • "He is very calm and collected. He is also very clear."
  • "He has a brain the size of a building, and is incredibly eloquent with it; he finds it easy to explain very complicated things."