Meet The Team

Meet the HartDixon team members. Our philosophy is expertise achieves excellence. All of our projects are led by qualified and chartered surveyors.

Harry O’Callaghan

Surveyor

07496 402 858

Harry joined HartDixon in August 2022 from TFT consultants where he gained experience in a broad range of services lines including Contract Administration, Schedule of Dilapidations, planned maintenance schedules, RCAs and condition surveys, concentrating mainly on commercial and heritage buildings. He has a Building Surveying degree from Kingston University and is currently working towards becoming a member of the RICS. When away from work he enjoys playing football, cricket, basketball and golf.

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Ben Devonport

Partner

07885 554 258

Ben joined HartDixon in March 2016. He was previously at Lambert Smith Hampton, specialising in commercial property where he was involved in due diligence, project management and contract administration and dilapidations. He has completed numerous projects in the office, retail and industrial sectors. He also has a strong background in Expert Witness work and other building surveying services.

Ben has a BSc (Hons) degree in Building Surveying and Environment from Plymouth University and is a member of the RICS. Ben enjoys most sports but rugby, football, golf, skiing and sailing in particular.

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Barry Shambrook

Partner

07767 221 559

Barry started his career as a mechanical and electrical engineer, progressing to managing director and majority ownership of a firm of consulting engineers. Barry joined HartDixon in 2018 as senior project manager for high tech developments such as data centres. Barry’s credentials include BICSI RCDD (Registered Communication Distribution Designer), and full membership of the Institute of Engineering Technology (MIET) and Association for Project Management (MAPM).

Barry has held volunteer positions in BICSI, a professional association supporting the advancement of the information and communications technology (ICT) profession, and in 2019 was elected director for the EMEA region.

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Heather Gristey

Surveyor

07930 091 969

Heather, a Chartered Building Surveyor, joined HartDixon in February 2024, bringing a strong background from roles in a large construction company and reputable consultancies like Colliers and Watts Group. Specialising in commercial building and property matters, Heather excels in Contract Administrations, Dilapidations, Planned Preventative Maintenance, Technical Due Diligence, and Licence to Alter.

Heather earned her post-graduate degree in Building Surveying from London Southbank University, securing her charter in December 2023. Beyond her professional achievements, she enjoys family time, camping, bike riding, and paddle boarding. Heather's diverse expertise and balanced approach make her a valuable addition to the HartDixon team.

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David Hornstein

Associate Partner

07885 556 439

David joined HartDixon in May 2014, having previously worked within the valuations and commercial agency sector. At HartDixon, David is heavily involved in project management and contract administration as well as a wide range of other building surveying services such as dilapidations, RCA’s and building surveys. He has completed numerous projects in the Office, Residential and Industrial sectors.

David has a BSc (Hons) degree in Building Surveying from Kingston University and is a member of the RICS.  David enjoys playing and watching a variety of sports and is a keen F1 enthusiast.

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Ravi Patel

Senior Surveyor

07539 059118

Ravi joined HartDixon in April 2023, having previously worked at Colliers and JLL. He has gained experience within the commercial sector, working with Landlords and Tenants across London and the Southeast. Ravi has a background in core Building Surveying services, including dilapidations, planned maintenance programmes, dilapidations, contract administration and technical due diligence. 

Ravi completed his undergraduate in Building Surveying from Coventry University, is a member of the RICS and an APC Assessor. In his free time, he enjoys staying active and growing his collection of Lego models.  

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Michael Davies

Associate Partner

07983 102 047

Michael joined HartDixon as Associate Partner in June 2021. He was previously at Groma Consulting and has specialised in contract administration, employer’s agent and project management on new build and fit-out works across commercial, educational, residential and laboratory sectors ranging in value from £50k-£105m.

Leading on major projects, he has significant expertise working with private lenders and undertaking project monitoring on small and medium sized residential and mixed-use developments.

Michael has a BSc (Hons) first class degree in Surveying (Building Surveying) from London Southbank University and is a member of the RICS.

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Max Howard

Senior Surveyor

07375 022 749

Max joined HartDixon in August 2021 after becoming a chartered surveyor in June 2021. He was previously at AKSWard where he gained experience in a wide variety of commissions. Max specialises in contact administration and project management, defects diagnosis, planned preventative maintenance programmes and party wall.

Prior to AKSWard, Max worked for a Price Lilford, a small independent practice based in Canterbury. Outside of work, Max enjoys most sports having partaken in rugby to a high level previously, he also enjoys cricket, golf, skiing, sailing and football to name a few.

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Christopher Tanner

Senior Partner

07964 918 901

Chris joined HartDixon in September 2014. He was previously at Rider Levett Bucknall and Lambert Smith Hampton, where he gained extensive experience in the commercial property sector with a strong focus on contract administration and dilapidations across a variety of sectors.

Chris has a BSc (Hons) degree in Building Surveying and Environment from Plymouth University and is a member of the RICS. Outside of work Chris enjoys most sports but particularly football and spending time with his young family.

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Emma Halliday

PA and Business Operations

020 7202 1426

Emma joined HartDixon in June 2015.  She previously worked at Barratt, London and has extensive PA and administration experience.  Emma works closely with the building surveyors to ensure the smooth running of projects and is our ISO9001 and ISO14001 lead.

Emma has a passion for travelling and experiencing different cultures, she has travelled independently to SE Asia and volunteered in Cambodia. 

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Andrea West

Credit Controller

020 7202 1426

Andrea joined HartDixon in September 2020. Before moving to London in 2009, she was a Paediatric Pharmacist specialising in General Medicine and Oncology at the Stollery Children's Hospital in Canada.  Andrea went on to work for the Haematology Department at the Royal Free Hospital before starting a family in 2012. 

She is known for her love of walking (everywhere!), hosting dinner parties and escaping to warmer climates.

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Ronan Smith

Senior Associate Partner

07498 431 530

Ronan joined HartDixon as an Associate Partner in April 2022, promoted to Senior Associate Partner in January 2024. Prior to joining HartDixon, Ronan worked for Martin Arnold Ltd where he specialised in project management, employer’s agent and contract administration roles. 

Ronan has a broad range of experience in all aspects of building surveying but specialises in the commercial and residential sectors. Leading on major projects, Ronan has significant experience in high-end commercial fit outs along with residential refurbishments and new build developments.

Ronan finished his BSc (Hons) degree in Building Surveying in 2014 and is also a member of the RICS. Outside of work, Ronan enjoys travelling and is a keen sportsman across a variety of sports.

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Philip Warner

Surveyor

07703 751 717

Philip joined HartDixon in February 2021. In his previous and current roles Philip has provided the full spectrum of building surveying services including technical due diligence and building surveys, dilapidations, maintenance planning and management, party wall matters and reinstatement cost assessments. He has also provided project management, contract administration and employers agent services for both the Commercial and Residential sectors.

Philip has a post graduate degree (MSc) in Building Surveying from Kingston University and is working towards becoming a Chartered member of the RICS.

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Michael Brearley

Senior Associate Partner

07958 657 382

With a focus on projects, Michael joined HartDixon in March 2020 to take the lead on delivering, exciting multi-million-pound developments of both residential and commercial properties.  Prior to joining HartDixon, Michael qualified as a Chartered Building Surveyor within the residential sector, specialising as an employer’s agent and contract administrator for affordable housing schemes, and later expanding his experience by moving into the commercial market, delivering high end retail and office fit-outs within London.

Michael has a masters in the Built Environment/Surveying and a degree in History and Politics from the University of Nottingham.

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Joe Marle

Senior Surveyor

07539 152 757

Joe is a Senior Surveyor who joined HartDixon in January 2024 with a focus on delivering various commercial schemes. Prior to joining HartDixon, Joe worked at Martin Arnold and Gleeds where he gained a wealth of experience predominantly across the residential and commercial sectors, but also within the education and sports sectors. His previous clientele comprises a mixture of private and public sector entities, namely various Housing Associations and Local Authorities, departmental Government bodies and Build-to-Rent landlords. Joe has a strong focus on project delivery, with a skillset suited to fulfilling the roles of Project Manager, Employer’s Agent and Contract Administrator. 

Joe has a post-graduate diploma in Building Surveying from London Southbank University, for which he received a scholarship for his studies. In addition, Joe achieved MRICS qualification as a Chartered Building Surveyor in 2021.

Outside of work Joe’s passions include travelling, having previously travelled South America and Vietnam, exploring new places to eat and drink and maintaining a keen interest in sport, most notably football and boxing.

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James Child

Senior Surveyor

07983 704 141

James is a Chartered Building Surveyor, joining HartDixon in August 2023, having previously worked for Daniel Watney and TFT Consultants; with a strong focus on commercial property where he was involved in Due Diligence, Project Management and Contract Administration, Dilapidations and Planned Preventative Maintenance Schedules. He has also completed numerous projects within the residential sector. James has a post graduate degree in Building Surveying from University of the West of England and is a member of the RICS. Outside of work, James enjoys most sports having competed at Henley Royal Regatta and Round the Island Race; whilst also enjoying skiing, scuba diving, rugby and football.

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Alex Windle-Hills

Associate Partner

07958 657 383

Alex is an MRICS qualified senior building surveyor with wide ranging experience across key real estate sectors including commercial, industrial, prime residential and education. He joined the team in May 2021 from TFT Consultants and has a strong background in core building surveying areas including technical due diligence, dilapidations, party wall services, and planned and preventative maintenance schedules.

Alex has a broad experience with both private and institutional commercial clients including landed London estates, M&G and Aviva. Outside of work Alex is a keen golfer, skier and PADI qualified diver.

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Kevin Walker

Senior Surveyor

07539 154 911

Kevin has a First Class BSc (Hons) degree in Building Surveying from Nottingham Trent University and is a member of RICS. His recent experience is within the commercial sector, predominantly offices, for investor clients across London where he has provided core Building Surveying services including Employer’s Agent, Contract Administration, Planned Maintenance Programmes, Dilapidations and Licence To Alter.

Outside of work, Kevin has a young family and interest in most sports whilst trying to retain a level of fitness. Kevin acquired a Black Belt First Dan during his youth and is currently trying his hand at golf.

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Amy Hollingworth

Surveyor

07903 450788

Having recently graduated from the University of Reading with a distinguished BSc (Hons) in Building Surveying, Amy has now set her sights on gaining her Chartership, a testament to her motivation and willingness to take on new challenges, which, combined with her passion for the field, is sure to set her up for success in her new role.

Amy’s degree enabled her to gain the technical and practical skills necessary to adequately inspect and analyse buildings, by studying the performance of buildings and acknowledging how different defects occur and the effects of it.

Beyond her professional ambitions, Amy loves to travel and read, hobbies that allow her to explore new places and immerse herself in diverse cultures.

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Mark Healey

Associate Partner

07921 582 347

Mark Healey is a Chartered Building Surveyor. He joined HartDixon in 2011. He has undertaken a variety of building surveying roles throughout his career and now specialises in project management, contract administration and technical due diligence. Mark has completed numerous high-end projects in the office and retail sectors along with various projects within the industrial and residential sectors.

Mark finished his MSc degree in Building Surveying and Environment from Northumbria University in 2013. He is also a member of the RICS. Mark enjoys travel, sport and construction in his spare time.

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Simon Waterhouse

Senior Partner

07515 082 791

Simon joined HartDixon in 2008 and is a Chartered Surveyor with over 20 years experience. He has a broad range of experience in all aspects of building surveying and specialises in contract administration and project management for both the commercial and residential sectors. He also leads on large scale planned preventative maintenance condition surveys and due diligence services.

When not working, Simon enjoys playing football and tennis, he is also a keen runner and has taken part in several half marathons both in the UK and abroad. Simon has a degree in Building Surveying from Nottingham Trent University.

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Charlie Railton

Partner

07572 677 279

Charlie, a Chartered Engineer, brings a wealth of project management experience across retail, commercial office and critical engineering sectors. His career journey includes pivotal roles at NB Bailey and Landsec, where he spearheaded notable projects and played a key role in establishing the MYO flexible office brand. With a proven track record of delivering complex projects with finesse, Charlie has delivered numerous shell & core, CAT A, CAT B, public realm, engineering and technology projects. 

Charlie’s open and collaborative approach enables him to successfully deliver multiple projects to a wide group of stakeholders and is poised to make a significant contribution as part of the Hart Dixon Team. 

Outside of work, Charlie loves to be on the water kitesurfing and sailing, he also loves an extreme DIY project and the odd round of golf.

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Huw Dixon

Senior Partner

07891 055 253

Huw joined HartDixon in 2013. With over 25 years experience in all building surveying activities, he specialises in professional services, in particular dilapidations consultancy, project monitoring and due diligence, working for both public and private sectors. Before joining , Huw led the national dilapidations team within GVA Grimley (now Avison Young) and Lambert Smith Hampton before that, working throughout the UK and Europe.

Huw’s experience covers all commercial sectors with further specialist experience in hotels/leisure.  Huw is a keen runner and cyclist but also enjoys a round of golf and drumming.

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Sunny-Thomas Obasuyi

Senior Surveyor

07983 608 737

Sunny joined HartDixon in September 2023, having previously worked at BNP Paribas Real Estate and L&Q Housing Association. He holds a BSc (Hons) degree in Building Surveying from Nottingham Trent and became a chartered surveyor in 2021. With over 8 years of experience, Sunny has a deep understanding of both residential and commercial sectors.

As a client-side Project Manager for Registered Providers, Sunny has overseen the procurement of affordable housing stock and managed large-scale estate regeneration projects with budgets ranging from £10-30 million. In the commercial sector, he specialised in construction delivery for fit-outs and refurbishments, handling projects with a cumulative value of over £80 million. His roles have encompassed Employer Agent, Contract Administration for CAT B refurbishments, Project Development Monitoring, and risk and stakeholder management.

In April 2023, Sunny was elected to the Young Member seat on the RICS Governing Council, the organisation's highest governing body, including the RICS presidential team and global member representatives.

Outside of work, Sunny is a passionate advocate for inclusivity and youth empowerment, serving as a STEM and RICS Inspire Ambassador. He's an avid podcast enthusiast, a touch rugby player at a social level, and a fan of video editing. Sunny also loves to travel, explore new locales, and support Arsenal football club.

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Jon Forth

Senior Associate Partner

07834 432 400

Jon joined HartDixon 2010. He was previously at Lambert Smith Hampton. Jon has experience in a full range of project management and building consultancy skills, including acting as project manager and employer’s agent for new build and refurbishment projects in the office, retail and industrial sectors. He also has a strong background in professional services including dilapidations, PPM and pre-acquisition surveys.

Jon has a BSc (Hons) degree in Building Surveying from Nottingham Trent and is a member of the RICS. In his spare time Jon enjoys fishing, boxing and is a keen runner.

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Rohit Grewal

Surveyor

07301 295 066

Rohit is a chartered building surveyor who became an integral part of the HartDixon team in January 2024. His professional focus revolves around a diverse range of commercial building and property matters. Prior to joining HartDixon, Rohit contributed his expertise to Cushman & Wakefield, where he advised on various projects, including contract administrations, dilapidations for both landlords and tenants, planned preventative maintenance, technical due diligence, and licence to alter. His broad-spectrum tasks catered to industrial, public sector, and commercial clients.

Rohit holds an undergraduate degree in Building Surveying from Nottingham Trent University and achieved his MRICS qualification in November 2022.

Beyond his professional pursuits, Rohit explores new cultures through travel which compliments his culinary interests. This passion for exploration extends to his work, where he brings a fresh perspective to each project. Rohit's well-rounded approach positions him as a versatile and valued member of the HartDixon team.

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Jackie Buckley

Partnership Secretary

020 7202 1426

Jackie joined HartDixon in 2016, the day after her birthday! She has previously worked at Strutt & Parker and The Crown Estate. At HartDixon, Jackie is Partnership Secretary, working closely with the Partnership team and providing PA support to Stuart Hart.

Jackie is passionate about health and wellbeing and is a trained yoga/movement teacher and massage therapist. She lives in the Kent countryside, loves going on long walks and autumn is her favourite season for sitting by the fire in cosy jumpers.

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Stuart Hart

Senior Partner

07515 082 738

Stuart founded HartDixon in 2008.  A Chartered Building Surveyor for over 20 years, he specialises in project management. Stuart works primarily on private sector projects, ranging from large mixed use Central London cut and carve schemes to out-of-town new build industrial sheds.  Before HartDixon, Stuart had started up and ran the London Commercial Building Consultancy office for the Frankham Consultancy Group. Before that he worked for DTZ on commercial projects and building surveying services. 

Aside from developing HartDixon into the preeminent Building Surveying Practice in the UK, Stuart likes to travel, tries to retain a level of fitness and indulge in his love of the finer things in life…

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