Professor Graham F. Chase

Professor Graham F. Chase is a senior surveyor at Chase Sinclair Clark LLP, the niche London commercial property consultancy recognised as Commercial Property Expert Witness of the Year in England at the Corporate INTL Global Awards 2025. A chartered surveyor and chartered arbitrator whose post-nominals include FRICS, FCIArb and C.Arb, he is among the most experienced practitioners in the country in the resolution of commercial property disputes.

Chase Sinclair Clark brings together the former practices of Chase and Partners and Sinclair Clark to form a specialist consultancy offering arbitration, dispute resolution and valuation alongside its agency and development work. The firm advises occupiers, funds, strategic developers and investors across the United Kingdom, with a particular focus on Greater London and the Channel Islands, and describes its work as founded on a measured, professional approach driven by research and data analysis. That evidence-led ethos is central to the firm's standing in contentious property matters, where robust analysis and clear reasoning are essential.

As a senior surveyor within the firm's professional team, Professor Chase brings decades of market knowledge to valuation, rent review, lease renewal and related disputes. His combination of surveying expertise and formal arbitration credentials positions him to act both as an expert and, where appropriate, as an arbitrator or independent expert appointed to determine matters between parties. This dual perspective is highly valued in expert witness work, where a surveyor must not only reach a defensible opinion but also present it credibly to tribunals, courts and other decision-makers.

Commercial property expert witness work sits at the intersection of real estate practice and dispute resolution. It calls for a detailed grasp of market evidence, valuation methodology and the legal framework governing landlord and tenant relationships, together with the ability to withstand scrutiny under cross-examination and to produce reports that comply with the duties an expert owes to the court. Professor Chase's long career, professional fellowships and academic standing reflect the depth of experience that underpins this kind of instruction, and his contribution to the field has extended into teaching and professional education.

Working within Chase Sinclair Clark, Professor Chase supports clients ranging from property funds and investors to developers and occupiers who require independent, authoritative opinion evidence in negotiations, arbitrations and litigation. The firm's specialist focus on commercial property, combined with its research-based methodology, gives clients confidence that expert opinion is grounded in current market data rather than assumption. The Corporate INTL Global Awards 2025 recognition as Commercial Property Expert Witness of the Year in England underlines Professor Chase's reputation as a leading authority in the valuation and dispute-resolution side of commercial real estate.