Allan studied at Oxford University and qualified as a solicitor in 1995. Specialising in Commercial Property, Allan particularly enjoys development work and is described as having “superb knowledge in the development land sector” – a glowing testimonial given to Allan for his ranking in the Legal 500.

Allan joined the Oglethorpe Sturton & Gillibrand LLP partnership in June 2019 following more than 20 years at two other local firms including heading up the Commercial Property department.

Allan is a keen runner enjoys training at Lancaster & Morecambe Athletics Club participating in and volunteering at parkrun and enjoys spending time with his family, walking and wildlife watching.

Allan Sumner


Commercial Property


  • All aspects of Commercial and Agricultural Property including sales, purchases, leases, options , promotion agreements and refinancing;
  • Property development particularly residential;
  • Landlord and Tenant;
  • Experienced in dealing with planning obligations (S106 agreements)


  • Oxford University
  • Chester Law School
  • September 1995 – Admitted to the Roll of Solicitors for England and Wales