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Jonathan Longden - Expert Witness - CV

Name: Jonathan Longden, Chartered Surveyor BSc MRICS ACIArb
Firm: Shields Longden and Co ,
2 Crofters Court, The Crofts, Witney OX28 4DD
Position in Firm: Director, having 32+ years as a practicing surveyor

Advanced Professional Award in Expert Witness Evidence
Member of the Royal Institution of Chartered Surveyors, MRICS
Associate of Chartered Institute of Arbitrators, ACIArb

Chartered Building Surveyor and Registered Valuer
Chartered Project Management Surveyor
Member of Pyramus and Thisbe Society, the leading specialist organisation for Party Wall surveyors.


Jonathan has had a varied exposure to a broad range of client and professional issues, both residential and commercial, which has led to a transition into the areas of investigation of building defects, expert witness, residential valuation and the resolution of building related disputes.

The issues found in dispute / defect related work centre around the 'problem', and the 'people', and they way these interact. As part of any instruction the two issues need to be separated at an early stage.

Professional work has centred around resolving problems including bespoke valuations, building surveys, dilapidations, party walls, boundaries, refurbishment, new builds, project management, financial vetting, employer's agents, roof renewals, external decorations and strategic property reviews.


Jonathan has worked in many sectors of the property market including commercial, residential, insurance, retail, office, education and industrial in both the private and public sector ( including both central and local government ).

Around half his career has been based in London with major practices, and the other half based in Oxfordshire.

He has also split his time 50:50 between client management roles and private practice. This has given a unique insight into both sides of professional practice, and led to a greater understanding of client issues and the difficulties / dilemmas they frequently face.

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Shields Longden & Co is an independent practice of Chartered Building Surveyors. We are based in Oxfordshire, serving residential and commercial clients countrywide with an emphasis on Oxfordshire, Gloucestershire, London and the South East.
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