Alun has a varied and active practice, at inquiry, in court, and with advisory work. In the area of pure planning, as well as extensive residential/retail work, he has worked on projects involving airports, nuclear plants etc etc. In the sub-category of 'town and village greens, Alun has been involved in very numerous inquiries under the Commons Act, either as advocate or as inspector appointed by the registration authority.
Recent cases have included:
- Glebelands, nr. Benfleet, Essex – inquiry into major housing proposal in Green Belt.
- Moore v Secretary of State – High Court and Court of Appeal proceedings as to lawfulness of using (very) large dwellinghouse as holiday accommodation.
- Commons Act ('village green') inquiries in Bridgend, Oldham, Thundersley (Essex), Basildon, Havering (London), Vange (Essex), Lowestoft, Laindon (Essex) [as advocate]; and Leeds, Neath (S.Wales), Caerphilly, Leicester, Maldon, Holland-on-Sea, Wickford, Walton-on-the-Naze (all Essex) [as Inspector].
- Land off Kiln Road, Thundersley, Essex: inquiry into housing scheme in Green Belt 'plotlands'.
- Guilford Street, London WC1 – Backpackers' hostel in listed former NHS buildings.
Alun has been ranked in Legal 500 as a leading planning junior.
Highways and transport infrastructure
Alun has advised and represented interested parties on all sides on issues arising in the development of highways and other transport infrastructure. His work has included:
- Motorway service areas e.g. on M25,
- Major road schemes, e.g. Mere – Wincanton on A303, Tingewick Bypass, Linslade Western Bypass (Bucks).
- Airports – Heathrow Terminal 5, Stansted, Birmingham, Luton etc.
- Rail schemes
- Dedicated bus-ways, e.g. in Swansea
- New port and harbour schemes,
- Accesses, junctions and other infrastructure designed to serve new development.
- Nuclear plant, including waste reprocessing.
Alun advises on all stages of the relevant processes including the making of the relevant application or order, and its promotion or objection at public inquiries, the High Court and Parliamentary Committees.
Commons, town and village greens
Alun has very extensive experience in this field, in a variety of different roles. He has on numerous occasions been appointed by Commons Registration Authorities (County or Unitary Councils) to hold (as Inspector) Inquiries or hearings on their behalf into town or village green claims. He has also frequently been instructed to act for local authorities (and others) as landowners in such cases.
Cases where Alun has been instructed by Registration Authorities include:
- Widmer End, nr. High Wycombe – Buckinghamshire
- Winnersh, Berks. (surplus education land) – Wokingham
- Wargrave Old Chalk Pit, Berks. – Wokingham
- Land at Newbold Hill – Rochdale
- Yeadon Banks – Leeds [decision successfully defended in High Court and Court of Appeal –  EWCA Civ 1438]
- Highbury Mission Land – Leeds
- Linnet Close, Tilehurst – West Berkshire
- Bull Lane Playing Field – Enfield
- Pincents Hill, Tilehurst - West Berkshire
- Dyffryn Cellwen - Neath-Port Talbot
- Groby Road, Ratby – Leicestershire CC
- Oakville Road, Charlestown, Hebden Bridge – Calderdale MBC
- Hawtin Park fields, Pontllanfraith – for Caerphilly CBC
- Essex CC (numerous inquiries – 4 in 2012)
He has also been instructed by local authority landowners to represent them at village green inquiries/hearings. Examples include:
- Pakefield Old Golf Course, Lowestoft – for Suffolk C.C.
- Oak Victoria site, Oldham – for Oldham M.B.C.
- Ffordd yr Eglwys, North Cornelly – for Bridgend C.B.C.
- Runnymede Paddocks, Thundersley – for Castle Point B.C.
- Gooshays – for London Borough of Havering
- Lee Chapel North, Kent View Road, and Pound Lane (three inquiries) – all for Basildon B.C.
- He has also frequently advised private sector and local authority landowners in relation to actual or potential village green 'problems', including advising on (lawful) schemes aimed at minimising or overcoming such problems. Notable examples have arisen in Berkshire, East Sussex, Greater London, Monmouthshire and other parts of South Wales, north-west England, and in other locations. Notably, a scheme devised by Alun for the developers Barratts was successfully defended in the High Court in BDW Trading Ltd (t/a Barratt Homes) v Spooner  EWHC 290 (QB)
He has also spoken on village green law at numerous conferences, seminars, etc.
Compulsory purchase and compensation
Alun has a varied and active practice, ranging from extensive advisory work to appearances at Inquiries, the Lands Tribunal, and in the Courts.
Recent examples include:
Promoting CPOs for Swansea for a new bus station/transport interchange, and for a new off-highway express bus route.
Snook v Somerset CC (Lands Tribunal) compulsory purchase compensation including extensive 'ransom strip' claim.
Promoting CPO for Vale of Glamorgan at Penarth Heights (successfully resolved without need for inquiry).