Who We Are


We are a dedicated, client focused, experienced team of chartered surveyors and designers with offices in Staffordshire, Birmingham, London, Manchester and Leeds – our expert team at Jonathan Cornes Associates (JCA) and MAW Consulting (MAW) provide independent advice, and support on all technical surveying and design matters.  

We pride ourselves on the highest professional service with a client focused approach, business acumen and the attention to carefully listen to your requirements to exceed your expectations and ensure the success of your projects.

From Dilapidations to Building Surveying, High Value Interior Design to Development Project Management and Quantity Surveying – with everything technical in between – we will help you to maximise your investment or development and minimise the risks.

Meet our Directors


Group Managing Director: Jonathan Cornes

With over 20 years’ experience in this sector, Jonathan is a specialist in Dilapidation disputes and high-value Project Management, offering top-tier surveying advice and support to JCA clients. Having managed complex, large-scale, public sector sites and consulted for the MoD, Jonathan has built a thriving practice based on expertise, service and a superb track record, with a quality team of surveyors, designers and project managers.

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Group Design Director: Eve Cullen-Cornes

Drawing on a wealth of experience in interior design, Eve specialises in high value interior design consultancy for award winning boutique hotels and fine dining establishments.  Eve’s approach is dynamic and refreshing as she works with her clients on a personal basis to echo the personalities and brand of each client and expresses this within the design scheme for the ultimate customer experience.  


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Group Director: Stuart Thornhill

Stuart joined the JCA team in 2004 and brings broad knowledge, attention to detail, and an ultra-professional service to any project. Experienced in all aspects of domestic and commercial building surveying services, Stuart specialises in Dilapidations and Construction Management, and his experience ranges from party wall, design and structural inspections, right through to large commercial relocation management and refurbishment projects.

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Regional Director: Clare Maughan

Clare joined the company in 2017 and specialises in Building Surveying, with an expertise in high-value Dilapidations and Due Diligence Surveys on both commercial, heritage and residential properties and an in-depth knowledge and experience of project management services for heritage conversions and maintenance projects.  Clare is also the JCA Regional Director for the office, she ensures the office provides a high level of services to our long-established clients whilst ensuring the team work in a great productive environment. 

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Trusted by Top Companies Around the Globe



” I have had the pleasure of using the services provided by Jonathon Cornes Associates on a number of occasions. I have worked alongside Clare Maughan on range of projects for our Housing Association scheme. Clare is very professional, knowledgeable, helpful, and reliable, and I would highly recommend the services of Johnathon Cornes Associates. ” 


” We have been working in partnership with Jonathan Cornes Associates for a number of years, specifically employing their Dilapidations and Project Management services.  They continue to deliver their expert knowledge and professionalism for each instruction, providing key advice for our clients and providing guidance throughout. ” 


” At Mounsey Chartered Surveyors, we have worked alongside JCA on a number of projects including Dilapidations, Building Surveys, and Structural Assessments and have always been delighted with the quality and professionalism of services that they provide. They are very experienced in what they do and also extremely thorough, and we look forward to our partnership continuing into the future… ” 


” I’ve worked with Jonathan and Stuart for many years, and they have assisted me with expert evidence, reports and advice on various claims from Party Wall Act claims to dilapidations and expert evidence on defects and on the cause of water ingress. They are both very knowledgeable and great to work with. ” 


” There are few designers who have sensitivity and less who listen, and there are few who have a unique touch to balance a room with class and integrity. Eve has all of these qualities and more… ” 


” Jonathan Cornes Associates have provided surveying services to a number of commercial clients of Pickering & Butters, particularly the preparation of dilapidation schedules.  I have been particularly impressed with their knowledge in dealing with dilapidation matters.  They are well versed in the law in this area and in the dilapidations protocol. ” 


” I can always rely upon JCA for professional advice. I have used them several times for expert assistance to help prevent disputes, or formally when disputes have arisen. I find their advice to be accessible to those without building knowledge, as well as clearly explained, particularised and supported by fact when provided in formal reports. I can rely on JCA to offer a frank and fair view which enables my clients to reach a commercial decision, backed by specialist expertise. I would not hesitate to recommend their services. “



” The team at JCA is extremely knowledgeable and commercially aware. They can be relied on to provide independent advice on property matters in a prompt, professional and friendly way. ” 


“All in all a great experience , friendly & knowledgeable staff who offered good levels of communication to assist us along the way. Would definitely recommend and if the need arises will be sure to give them a call to assist.”