Home / People / Katie Duffield
Portrait of Katie Duffield

Katie Duffield


CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
United Kingdom
Languages English

Katie Duffield is a partner in the Infrastructure and Project Finance group in Banking and Finance Department at CMS London. Katie acts for financial institutions, borrowers and sponsors, advising on a wide variety of structured, project and corporate finance transactions, primarily in the infrastructure, transport, energy and climate change sectors.  Katie was named as a Next Generation Partner for Infrastructure in 2019's Legal 500.

Katie has been with the firm since 2003 and has over 15 years’ experience. She has delivered financing and restructuring solutions involving bank debt, bond issues (public and private placements), mezzanine financings, holdco financings and portfolio financings.

Katie is an active member of the CMS Women network.

more less

Relevant experience


  • Institutional investor noteholders, including Aviva and Sun Life, in relation to financings of rolling stock for the West Coast Partnership rail franchise and the East Midlands rail franchise.
  • Société Générale as agent in connection with major capacity upgrade works and amendments to the C$1.8bn Canada Line light rail project between Vancouver, its airport and Richmond in British Columbia, Canada.
  • Senior Creditors, including Aviva, LGIM, Scottish Widows, MetLife, MEAG, Rothesay, Barings, Mass Mutual and Aberdeen Standard in relation to the financing of rolling stock for the South Western rail franchise
  • Institutional investor noteholders, including Aviva, LGIM and Aberdeen Standard, and EIB in relation to the financing of rolling stock for the East Anglia rail franchise.
  • Aviva in relation to long term fixed rate financing of rolling stock to be run on the Moorgate branch of the Thameslink, Southern and Great Northern rail franchise.
  • Aviva and EIB, in relation to the £300m financing of the Dumfries & Galloway Acute Services Redevelopment Project.
  • Laing O’Rourke on the Yorkshire Batch Priority Schools Building Programme PF2 financed and secured through the “aggregator vehicle” model.
  • The Intercreditor Agent, the monoline insurer in respect of the project bonds and RPI swaps and other lenders to NATS Limited in relation to the National Air Traffic Services Project on an ongoing basis since 2005.
  • Aviva in relation to investments in ITS Technology Group, County Broadband and Truespeed Communications to fund the roll out of ultrafast fibre-optic infrastructure networks across the UK.
  • Aspire Defence Limited as the project company in relation to various amendments, variations and consents required in connection with the project financing for the MOD Allenby & Connaught accommodation and associated support services project.


  • Advising a renewable energy fund in relation to the portfolio financing of its operational solar assets.
  • AIB, IFM and Aviva in relation to financing of a portfolio of anaerobic digestion plants for Pretoria Energy.
  • National Grid in relation to financing, security and support arrangements in connection with transmission link and electricity interconnector projects.
  • BP in relation to financing, security and support arrangements in connection with disposals of North Sea assets.
  • The lenders to and investors in Aldwych International, a specialised developer of power projects in Africa, on the restructuring of its debt facilities

Corporate Finance:

  • Hunting plc, Savills plc and various other borrower clients in relation to their group working capital facilities often involving guarantee and fx facilities, overdraft facilities and bonding lines.
more less

Memberships & Roles

  • Member of the Law Society.
more less


  • 2003 – Legal Practice Course, Nottingham Law School, Nottingham.
  • 2001 – Law LL.B (Hons), University of Manchester, Manchester.
more less


CMS ad­vises River and Mer­cant­ile (R&M) on £155m in­vest­ment in Spring Fibre
In­ter­na­tion­al law firm CMS has ad­vised spe­cial­ist in­vest­ment man­age­ment com­pany River and Mer­cant­ile on its £155-mil­lion in­vest­ment in whole­sale fibre op­er­at­or Spring Fibre.Well known as a pro­vider of...
UK trans­port de­car­bon­isa­tion strategy– im­pact for rail sec­tor
On 14 Ju­ly 2021, the UK De­part­ment for Trans­port (“DfT”) pub­lished a wide-reach­ing policy plan on de­car­bon­ising trans­port and the tar­gets and am­bi­tions re­quired to meet the UK’s net-zero tar­gets...
The Wil­li­ams-Shapps Plan for Rail con­firms the end of rail fran­chising...
The long awaited white pa­per fol­low­ing the Wil­li­ams re­view of Brit­ish rail­ways was pub­lished yes­ter­day (20 May 2021). The white pa­per pro­poses the end of the fran­chising mod­el and a sig­ni­fic­ant over­haul...
Top 5 take aways from re­cent fibre roll out fin­an­cing trans­ac­tions
The last three years have seen a large amount of activ­ity in the tele­coms in­fra­struc­ture mar­ket in the UK, boos­ted by the rise and en­ergy of al­tern­at­ive net­work pro­viders (the “alt­nets”). However...
COV­ID-19: Chal­lenges for the sup­ply of new rolling stock for the Rail In­dustry
Al­though the rail in­dustry is not yet show­ing the same vul­ner­ab­il­ity to fall­ing pas­sen­ger num­bers due to COV­ID-19 as that be­ing ex­per­i­enced by mar­ket par­ti­cipants in the air­line in­dustry, with over half...
Fin­an­cing In­fraT­ech
In the ‘Fu­ture Tele­coms In­fra­struc­ture Re­view’, pub­lished by the De­part­ment for Di­git­al, Cul­ture, Me­dia & Sport in Ju­ly 2018, it was es­tim­ated that around GBP 30bn of fund­ing would be re­quired...
CMS ad­vises group of lenders on £120m AD re­fin­an­cing
In­ter­na­tion­al law firm CMS has ad­vised a group of lenders led by Al­lied Ir­ish Bank (GB) (“AIB”) as Agent and Struc­tur­ing Bank on the £120m re­fin­an­cing of two bio­meth­ane an­aer­obic-di­ges­tion (AD) fa­cil­it­ies...
Com­mu­nic­a­tions in­fra­struc­ture fin­ance: catch­ing up to the speed of con­nectiv­ity
Earli­er this week, bid­ding began in the UK for a share of newly re­leased spec­trum to provide the back­bone for the next gen­er­a­tion of net­work and data con­nectiv­ity, 5G ser­vices. With the usu­al sus­pects...