Meet the team

John Horton


Owner and Director, John has lived, worked and raised his family in Hammersmith for over twenty years. His wealth of contacts and property experience across Hammersmith, Shepherds Bush, Chiswick and West Kensington is the stuff of legend. Years in corporate agency crystalised for John the importance of staff retention, dedication to continual training and industry qualification and, above all, a client focused approach to business. Number one for sales agreed across Hammersmith, Shepherds Bush and Chiswick and number one for lettings in Hammersmith and Shepherds Bush, Horton and Garton is now one of the most successful independent businesses in West London. Whilst working tirelessly for his clients, John’s devotion to the local community has never wavered. Horton and Garton supports a variety of charities, community groups and local events every year. His years of experience and wholehearted addiction to client satisfaction have earned John an impeccable reputation and the business multiple awards.

020 8819 0510


Paul Cooney

Director, Chiswick Sales

Paul started his estate agency career in Brighton with a family run business and he recognised the same principles of honesty, integrity, ethical practice in Horton and Garton. Paul moved to West London in 2010 and has spent the majority of his time in agency at the helm of the Chiswick branch of a London-wide company. He’s sold in excess of 400 properties in W4 worth over £300 million. His knowledge of the Chiswick property market and commitment to the local community is second to none. Paul’s legendary ability to match buyers to their perfect property before it hits the open market means Horton and Garton’s Chiswick office is in the top five in W4 for sales agreed. Paul says, “A decade of working in agency has made me realise that personal relationships are the key to success.” He was recently honoured with the Rising Star Award from a nationwide shortlist of eighteen agents at the 2018 Negotiator Awards.

020 8996 5120


Ashley Clements

Lettings Manager

West London local and avid QPR fan and recently new dad, Ashley started his estate agency career with John in Hammersmith 2004. He joined Horton and Garton in its first year of business and now runs the most successful team in Hammersmith, Chiswick and Shepherds Bush. His local knowledge of West London and unparalleled experience make him a favourite among landlords and tenants. He is consistently on the front foot with changing legislation and licensing. Famously unflappable, Ashley’s approach to your property is always the height of professionalism.

020 8819 0511

Martin Clements

MNAEA Sales Manager

Martin grew up in the south west of England and was educated at King’s Taunton, Somerset. Inspired by his father, a chartered surveyor, Martin chose the property route for his career starting with John back in 2005. He has been at the helm of the King Street sales team since Horton and Garton’s very first day of trading. Always head and shoulders above the competition, Martin manages the most successful sales team in Hammersmith and Shepherds Bush. He has been in the manager’s chair for so long he has sold many West London properties more than once! An intimate knowledge of each street and unwavering commitment to his clients are key to his success.

 020 8819 0510


Michael Mudie

MARLA Operations Manager

Born and raised in Newcastle upon Tyne, Michael moved to London in 2013 to advance his career in Property Management and further his property knowledge in a much larger city along with obtaining his ARLA qualifications. Michael has re-joined the Horton and Garton, W6 team as our Operations Manager, having spent the last two years working for another central London Fitzrovia based agent. With a hands on and pragmatic approach to problem solving and getting the job done well Michael always works in the best interests for all parties involved and all landlords and contractors are promptly paid.
020 7183 5808

Phil Coombes

Senior Sales

Phil began his career in agency in 2015 right here in West London. Now an integral part of the sales team, Phil has been nicknamed “the Hammersmith Terrier” by local solicitors for his dogged approach to his clients transactions with where he handles each client with the utmost care and professionalism. He is renowned for working long hours to ensure the sales and acquisitions process is as seamless as possible for all parties. Phil relishes the challenge and the opportunity to meet new

people and help guide them through the buying and selling process. He is, for his sins, a Torquay United supporter and enjoys watching and playing both football and tennis.

020 8819 0510

Aggie Tukendorf

Senior Lettings

Aggie first started at Horton and Garton in 2010. Her degree in Public Relations, boundless energy, tenacity and winning smile have led her to carve out a successful career in lettings. Part of the furniture at Horton and Garton, she helps make up the most successful lettings team in Hammersmith and Shepherds Bush. Aggie is constantly exceeding expectations for landlords and tenants alike and still maintains that the best part of the job is meeting people and helping to find their ideal home. If you’re a keen skier, you’ll be able to glean insider property info as well as the best knowledge on ski locations throughout Europe.

020 8819 0511

Ashley Prowse

Ashley Prowse

Property Management

Ashley Prowse spent much of his career in the food and beverage industry before joining Horton and Garton. He finds that his people skills and attention to detail help him rise to the daily challenges of property management. Being raised in East Sheen hasn’t prevented Ashley from being a lifelong fan of North Londons Arsenal FC. Ashley plays a key role ‘behind the scenes’ and ensures our landlords and tenants are assisted promptly with any property maintenance issues – an area of the business which consistently receives rave reviews. Our landlord retention rate is extremely high and this is a testament to our hard working property management team.

020 7183 5808

Dominika Sielawa


Having joined us from her previous job in hospitality and having also undertaken cabin crew training with BA, Dominika’s high level of customer service was easily evident from the start. Like many estate agents the ‘in’ to thoughts of a career within the industry began via family members who already work in the residential property sector. A strong work ethic and enthusiasm to meet new landlords and tenants still leaves enough time for personal interests of reading and walking her dog.

020 8819 0510

Amy Kelly

Property Manager

Having spent 13 years working in administrative roles for the Metropolitan Police Service, Amy joined Horton and Garton as a part time Property Manager in late 2018, after deciding on a change of career. Her attention to detail, eagerness to learn and down to earth attitude give her the ability to investigate and resolve issues reported by tenants in a timely manner whilst also dealing effectively with landlords and contractors. Born and raised in Hammersmith, Amy still lives locally with her young family. Her free time is spent decorating her new home, travelling and socialising with friends.

020 7183 5808

Jenn Irvine

Client Care and Communications, Chiswick

With a background in public relations and communications, Jenn assisted Paul and John in establishing Horton and Garton’s Chiswick office. Jenn has relished the opportunity to help grow the business and communicate the consistent message that Horton and Garton is helmed by the most honest, client-focussed and hard-working professionals in the Chiswick, Hammersmith and Shepherds Bush communities. A firm believer in servant leadership, Jenn chaired the Chiswick and Hammersmith branch of the NCT, sat on the committee of the Belmont School’s PTA and was a part of the core team of volunteers that established The Shelter Project Hounslow in 2011. Jenn still volunteers in the Christ Church Turnham Green TSPH kitchen every winter. Jenn has a an MSc in Global Media and Communications from the London School of Economics and an MA in Global Communications from the University of Southern California’s Annenberg School of Communications.

If you want to join our team, send us your CV!