Valuations

  • Nicole Tucker

    Senior Surveyor Nicole joined Aitchison Raffety in 2002 and came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety. She is a surveyor within the valuation team, responsible for undertaking valuations on commercial and residential properties. Nicole undertakes a range of valuations for a variety of purposes including secured lending, portfolio, private and…

  • Max Buckland

    Senior Surveyor Max joined Aitchison Raffety in February 2023 after graduating from the University of Reading with a BSc in Real Estate. He came to the business through Graham + Sibbald’s acquisition of Aitchison Raffety. Initially qualifying in the Valuation division, he specialised in secured lending for commercial property assets. Max has since transitioned to…

  • Laura Macqueen

    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…

  • Karen St Helen

    Associate Director Karen has over 25 years in the property business including Landlord and Tenant work but predominantly valuations for secured lending. Karen has undertaken a variety of secured lending work covering, London, Essex, parts of Berkshire, Hertfordshire, Kent and Suffolk. She has obtained a good level of knowledge across property sectors such as residential,…

  • Kirsty Brummell

    Lead Administration Coordinator Kirsty joined Graham + Sibbald following the acquisition of Aitchison Raffety in 2025, she has been at Aitchison Raffety since 2022 in an admin role. She progressed into a valuations role, before getting promoted to lead administrator. Kirsty is the point of contact for any and all admin needs, and prides herself…

  • Karen Maley

    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…

  • Ian Wimpenny

    Managing Director Ian joined Graham + Sibbald following the acquisition of Aitchison Raffety in 2025. Ian joined Aitchison Raffety in 2021 and was appointed Managing Director in 2024. With over 20 years’ of experience in the real estate valuation industry, Ian was responsible for the business’ valuation service line. Ian is a Chartered Surveyor and…

  • Jason Rawlings

    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…

  • Jamie Simpson

    Senior Director Jamie has over 20 years of valuation experience and focuses on secured lending. Based at our Birmingham office, Jamie is the Valuation Director for the Midlands. Jamie’s experience includes valuing residential, commercial and development property, whether the property is vacant, owner occupier or held as an investment. The valuations have been for a…