James has broad experience of compulsory purchase and compensation work, in particular in the context of urban regeneration and major infrastructure projects. He is on the panel of counsel handling compensation claims arising from Crossrail and the Olympics, and was responsible for handling the majority of the claims arising from the London tunnels section of HS1. He acts for both claimants and public authorities. He is currently leading the London Borough of Southwark's challenge to the controversial decision in the Aylesbury case, and advising Milwall F.C in relation to the proposed new Bermondsey CPO.
James is an editor of the 2-volume loose leaf encyclopaedia 'Compulsory Purchase and Compensation Service' (Bloomsbury Publishing), and a co-author of 'The Law of Compulsory Purchase' (2ed 2011). He is a member of the Compulsory Purchase Association and delivered its annual Law Reform Lecture in 2016. He spoke at its annual conference in 2011 and 2009.
- Trustees of Borough Market v TfL (2015) - disturbance compensation arising from Thameslink (2015)
- Manchester University (2015) - advising the University on disturbance based objections arising from the proposed Northern Hub railway works.
- Ferguson Estates v TfL (2015) - Crossrail, disturbance and land value compensation.
- Balcombe v Veolia (2015) - disturbance compensation arising from laying of water pipes.
- Robert Dias v TfL(2014) - disturbance compensation arising from Crossrail.
- Clearun v GLA (2014) - front-runner Olympic compensation case establishing compensation on existing use rather than redevelopment basis for acquisitions in the Olympic park.
- Bishopsgate Parking v Welsh Assembly  UKUT 22 (LC) - £60+ million compensation claim.
- Successfully acting for the LDA in the compensations claims in Acrofame  UKUT 107, and Solartrack  UKUT 158, securing costs in each case.
- Over 200 subsoil claims before the Lands Tribunal which arose from the London Tunnels section of HS1 (2009/ 2010).
- Kent County Council v Union Railways North Ltd  EWCA Civ 363, acted for the successful claimant in the leading case on omitted interests.
- Kent County Council v Union Railways  23 EG 117, on the entitlement to compensation when no notice to treat is served.
- Bocardo SA v Star Energy UK Ltd  EWCA Civ 279, instructed to advise successful oil company on valuation of rights to extract oil through third party land under the Mines (Working Facilities and Support) Act 1966.
- Solartrack v London Development Agency  UKUT (LT) 242 -, acting for the LDA striking out a compensation claim on estoppel and other grounds.
- Solihull Touchwood Shopping Centre (2015) - acting for promoter.
- Watford Health Campus redevelopment (2015) - acting for promoter.
- Former Gasworks site, Southall (2015) - objections to CPO on behalf of LB Hillingdon and the Canal and River Trust.
- Croydon Town Centre regeneration (2015) - objections to CPO.
- Eastbourne Arndale Centre (2015) - objections to CPO.
- Watford Intu Shopping centre redevelopment (2014) - acting for promoter .
- Four housing regeneration CPOs for LB Hackney (2014).
- Burbo Bank Off-shire Windfarm (2014) - CPO for the cable element of the project.
- Willington C Gas Pipeline (2014) - CPO for the gas supply pipeline to link to the Willington C power station.
- Whitemoss Landfill site (2014) - development consent order, including compulsory purchase powers, for new hazardous waste landfill site.
- Avon Cosmetics (2012) - resisting compulsory acquisition of land around Avon's European Headquarters.
- Successfully promoting CPO's for the London Olympics (2006), SEEDA (2008), Gosport Council (2010) and Tameside Council (2011)