David Sandbrook, Director, MRTPI, FRICS, FIQ, MCIWM

David is a Chartered Surveyor, Chartered Planner and RICS Registered Valuer with over 30 years’ professional experience in a broad range of planning, property and valuation matters. David has acknowledged specialist expertise in mineral, waste management and renewable energy cases and has appeared as an Expert Witness in planning inquiries, at the Royal Courts of Justice and High Court on litigation matters and acted in Mediation and Upper Tribunal (Lands Chamber) cases. David specialises in the valuation of mineral and waste management assets, with experience gained throughout the UK and overseas.

He has acted as an Expert Witness on property disputes and professional negligence cases. He has also acted in claims for compensation under Compulsory Purchase Orders (CPO), Development Consent Orders and Modification Orders under the planning acts. Recent clients have included Viridor, Dorset County Council and CEMEX.

To contact David please email him David Sandbrook.


Huw Richards, Technial Director, BSc(Hons) MRICS MIQ

Huw has over 15 years Minerals and Waste Management sector experience (UK, Australia, and USA), specialising in the valuation of Minerals and Waste Management facilities including quarries, mines, concrete batching plants, asphalt plants, brickworks, landfill, energy from waste and associated facilities. 

Huw is a qualified Chartered “Minerals & Waste” Surveyor, a Chartered Valuation Surveyor and is an RICS Registered Valuer. He has provided expert valuation advice in relation to client’s minerals and waste management assets affected by compulsory purchase orders, and legal disputes.

To contact Huw please email him Huw Richards


Mark Blackford, Economist

Mark is economist and has a degree from the City University, London. He has over 35 years of oil industry economics and valuation experience and an extensive knowledge and understanding of international fiscal structures and their impact on commercial valuation. Mark provides detailed economic analysis for clients and is the in-house expert in preparing and analysing UK and international economic models for a multitude of purposes including acquisition and divestment and value quantification for disputes.

Mark has recently worked on damages assessment for a complex multi-billion dollar upstream oil and gas dispute in the UK where he has conducted extensive valuation in support of developing the case and has also worked alongside the quantum expert to guide and inform them on oil industry practise. Mark has experience of petroleum sharing contract economics and disputes and was part of the winning team in a case between Woodside and Star Petroleum relating to an offshore licence in Kenya.

To contact Mark please email him Mark Blackford