Our Team

John Haigh BSc MRICS FAAV RICS Registered Valuer

John Haigh joined the company in 1990 after 13 years in the valuation office, and practical experience in dairy, pig and arable farming on his father’s farm. A Chartered Surveyor, and Fellow of the Central Association of Agricultural Valuers, John took over the running of the business in 1996. Wide ranging experience dealing with agricultural, residential and commercial property, particularly valuations and property appraisals, compensation claims and more recently energy consultancy.

John can be contacted on 01423 860322. 

Catherine Johnston MRICS FAAV MRAC RICS Registered Valuer

After graduating from the Royal Agricultural College, Cirencester, Catherine Johnston joined the company in 1993. A Chartered Surveyor and Fellow of the Central Association of Agricultural Valuers, Catherine principally advises clients on rural property matters, sales, lettings purchases, management and valuation for a variety of purposes including compensation and HS2. Has detailed knowledge of the Basic Payment Scheme.

Catherine can be contacted on 01423 860322 or 07517 907553

Giles Chaplin BSc (Hons) MRICS RICS Registered Valuer

Giles joined the company in 2001. Although not from a farming background, he has gained a wealth of experience from working on farms in the Yorkshire region, as well as New Zealand. Giles has also gained knowledge from working with other Chartered Surveying firms as well as a property development company. Giles is principally involved in advising on planning & development issues and can assist in residential, agricultural and commercial sales, management and agricultural matters.

Giles can be contacted on 01423 860322 or 07517 909101

Marie Harris BA(Hons) Dip Arch ARB RIBA

Marie Harris joined the company in September 2018. She is a chartered Architect with over 20 years’ experience. Formally with Andrew Long + Architects in Knaresborough, Marie has a worked in several market sectors; including private and social housing, retail, leisure and healthcare. In recent years she has developed her skills designing projects involving Listed Buildings, Barn Conversions, Conservation Areas and developments in environmentally sensitive locations. She joins the team at the Knaresborough office offering a full architectural service from feasibility and design advice, through planning & building regulations submissions, contractor appointment and assistance with works on site. 

Marie can be contacted on 01432 860322 or 07597668911.

Debbie Matthewman

Debbie has ten years of experience in residential sales within the Harrogate, Ilkley and surrounding areas. She is both focused and devoted to customer service. She is enthusiastic about building relationships with clients to ensure the best property match for both vendor and purchaser and she works hard to ensure the whole sales/purchase runs as smoothly as possible.

Debbie is a local girl, born in Ilkley and having lived within the area most of her life. She has good local knowledge and experience with purchasing, development and sales of properties.

Debbie can be contacted at our Knaresborough office on 01423 860322 or 01423 798307.


Charlie Cowen BSc (Hons)

Charlie graduated from the Royal Agricultural University after gaining a degree in Real Estate. He has joined Lister Haigh as an Assistant Surveyor. Charlie is currently undertaking his APC and looks forward to completing this by September 2023. Charlie will be assisting with all general practice matters, valuations and sales.

Charlie can be contacted on 01423 860322 or 07549 034630.

Sam Harris BSc (Hons)

Sam joined Lister Haigh in 2022 following four years at Harper Adams University where he graduated with a degree in BSc (Hons) Rural Enterprise and Land Management. Sam’s time at Harper Adams included a placement year where he worked at a Cheshire based firm, gaining extensive experience in utilities compensation, agency and estate management work.

Sam is currently working to achieve his APC and is primarily involved in valuations, farm business consultancy and compensation work.

Sam can be contacted at our Knaresborough office on 01423 860322 or 01423 798214.

Peter G M Vernon BSc (Hons) MRICS Chartered Surveyor and Development Consultant

Peter is a development consultant who graduated from the University of Westminster in 1998, and trained at Dunlop Heywood in the West End as a General Practice Chartered Surveyor. Moving to Manchester in 1995, he established and built up an office for a Yorkshire firm of Chartered Surveyors called Eddisons Commercial. He pioneered Brownfield development and set up his own practice called Vernon &Co in 2005, advising a mixture of investment and development clients as well as acting as a Land Promoter.

Peter can be contacted on 01423 860322 or 07517 908861.