Senior Director Mark is a Senior Director for Hertfordshire and the surrounding areas which builds on a wide experience of property related work and in-depth knowledge of what Graham + Sibbald can bring to assist both existing and potential clients. Previously, Mark has headed both the Commercial Agency and Lease Advisory Divisions at Aitchison Raffety…
Senior Director Laura came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety. Laura is a Senior Director in the South, for the Valuation division at Graham + Sibbald, preparing residential valuations for solicitors, banks and financial organisations. Laura covers a wide area that includes Hertfordshire, Buckinghamshire, Bedfordshire, Oxfordshire, Essex and London. Laura…
Client Services Administrator Karen came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety. She joined Aitchison Raffety in August 2009 at the Milton Keynes branch as a secretary and currently works as a Client Services Administrator for the Valuations Team being a home based worker. Karen has previously worked for other companies…
Director As a Director of Graham + Sibbald, Jason provides valuation appraisals and project monitoring services for solicitors, banks and financial organisations, having valued property up to £100 million. Jason has been in practice since 1988 and originally trained with a West End architectural practice (ATP Group), subsequently continuing his training as a Surveyor with…
Senior Associate Director Hayden joined Graham + Sibbald following the acquisition of Aitchison Raffety in 2025. He started at Aitchison Rafferty in 2014, having previously worked in planning departments for several local authorities, including the London Boroughs of Harrow and Newham, and St Albans City and District Council. He has extensive experience handling a wide range…
Director Ian is a Director and an RICS Chartered Surveyor and Registered Valuer based in the St Albans office, with responsibility for the West Hertfordshire, North London and Buckinghamshire areas having over 30 years experience in commercial property. Ian specialises in commercial agency and landlord and tenant matters, covering locations including Watford, Hemel Hempstead, Berkhamsted,…
Associate Director Georgia joined Graham + Sibbald through the acquisition of Aitchison Raffety, where she had been working since July 2021 after graduating from Nottingham with a degree in Mathematics. She is now an Associate Director based in our St Albans office. Georgia specialises in the sale and letting of a range of commercial properties…
Marketing Executive Casey came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety. She joined Aitchison Raffety as a Marketing Executive in August 2022 and has been a driving force supporting the brand’s growth, leading with content creation, social media strategy, and digital presence. With over 10 years experience in creative and marketing roles…
Commercial Agent Alex came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety in 2025. After completing a summer internship with Aitchison Raffety, Alex joined the St Albans office in September 2025 as part of the Commercial Agency Team. Alex assists with the sales and lettings of a wide variety of commercial properties…
Commercial Surveyor Connor is a commercial surveyor based at our St Albans Office. Connor joined Graham + Sibbald following the acquisition of Aitchison Raffety in 2025, he started at AR in June 2024 coming from a commercial group based in Beaconsfield. Joining us with a number of years commercial property experience, predominantly working along the M40…
