Meet the team

John Horton


Owner and Director, John has lived, worked and raised his family in Hammersmith for over 20 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 crystallised for John the importance of staff retention, dedication to continual training and industry qualification. Above all, it cemented 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. While 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 devotion to client satisfaction have earned John an impeccable reputation and many awards.

020 8819 0510

07958 58 58 48


Paul Cooney

Director, Chiswick Sales

Horton and Garton’s Chiswick office, opened in April 2017, was born over a riverside pint. Realising they share the same principles of honesty, integrity and professionalism, Paul and John decided it was the perfect partnership. A lifelong agent, Paul began his career in Brighton but has now sold over £350 million worth of W4 property in the past decade. In just two years, the Chiswick office has catapulted into the top three agencies for sales agreed in W4 according to Rightmove. Paul’s intelligent approach to each home he lists and decision to work with a small selection of hand-picked properties has translated into stellar success for his clients. His legendary ability to pair buyers with their perfect property before they hit the open market has continued in 2019 with several million pounds worth of W4 property trading hands via Horton and Garton ‘off-market’. While the Chiswick office has won several national accolades for sales service, Paul was individually honoured from pools of hundreds of agents at The ESTAS Awards 2019 (People Award) and The Negotiator Awards 2018 (Rising Star Award) for his unique ability.

020 8996 5120


Jenn Irvine

Senior Communications and Operations

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. She is happiest when she’s delivering the five star service our sellers and buyers have come to expect as standard. 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.

020 8996 5120

Ashley Clements

Branch Manager

West London local, avid QPR fan and recent 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 and market leading lettings team in Hammersmith, Chiswick and Shepherds Bush. His local knowledge of West London and unparalleled industry knowledge and experience make him a favourite among landlords and tenants. He is consistently on the front foot with changing legislation, regulation and licensing. Famously unflappable, Ashley’s approach to your property is always the height of professionalism.

020 8819 0511

07458 060 648

Aggie Tukendorf

Assistant Lettings Manager

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

07458 067 836

Thomas Simlett


A local resident and family man, Tom’s approach to his work is always measured and proactive as he genuinely thrives on helping our landlords achieve the best result, and our tenants to find their perfect property. Tom’s early career as a Personal Trainer has put him in good stead for the energy and step count that goes with the role of a busy Lettings Negotiator. Originally coming from Wales, it’s no surprise that Tom has a strong interest in rugby. Whether on the pitch as a keen member of the London School of Economics Rugby Team, or off the pitch cheering on the Dragons at Twickenham.

020 8819 0511

07458 067 835


Michael Mudie

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 team as our Operations Manager, having spent the last two years working for another estate agency in Fitzrovia. With a hands-on and pragmatic approach to problem solving and getting the job done, Michael always works in the best interests for all parties involved and ensures all landlords and contractors are promptly paid.
020 7183 5808
07458 067 841

Dominika Sielawa

Lettings Negotiator

Having first joined us from a previous job in hospitality, and after also having undertaken cabin crew training with BA, Dominika’s high level of customer service was evident from the start. Like many estate agents, Dominika started her career within the industry following her own property search which ignited a passion to help others achieve their own property goals. Now, after a brief move out of London, Dominika is back in the Negotiators chair using her strong work ethic and enthusiasm to meet new landlords and tenants every day however, she still manages to leave enough time for her personal interests of reading and walking her dog Amy.
020 7183 5808
07458 067 844

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 London’s 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

07458 067 842

Amy Flood

Property Management

Being born and raised in Turnham Green, few know the streets (and shops) of Chiswick better than Amy. After starting her career in tenancy progression in Notting Hill, Amy’s desire to have her own personal portfolio of properties lead Amy to move to property management in 2018. Within months of Amy joining our property management team, positive reviews from happy West London landlords and tenants began pouring in commending her faultless client communication, and thorough and efficient response to property issues. 

Now, Amy’s moved North slightly to Acton but still ventures back to W4 to take her gorgeous Pomeranian Lola on morning walks around Gunnersbury Park.

020 7183 5808

074 5806 7837

Martin Clements

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 first day of trading in May 2008. 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

07458 067 840

Phil Coombes

Assistant Sales Manager

Phil began his career in agency in 2015 right here in West London. Now an integral part of the Horton and Garton 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

07458 067 838

Charlie Carroll


Charlie’s property career began in 2005 when he worked Saturdays for his families estate agency in  Windsor, Berkshire, though he quickly graduated to a full time position. Deciding to leave for sunnier climes in 2014 he moved to the French Riviera, selling luxury homes around Monaco, Cannes and Valbonne before finally arriving in Hammersmith in July 2019. With 15 years in the business, Charlie brings a wealth of experience to the H&G sales team and is very happy to work with buyers in English or French. Charlie takes great pleasure understanding each buyers specific requirements and is completely at home in the cosmopolitan West London property scene.

020 8819 0510

07458 067 839

Giorgia Cecconi

Chiswick Sales

Joining the team in 2020, Giorgia has returned to the area where her career in property originally started – Chiswick. Her fondness for the area has drawn her back to leafy W4, though she returns with a new perspective and now as a seasoned selling agent.

Having worked in a number of locations across the capital and with 5 years’ experience working as a London estate agent, Giorgia brings with her a passion for property and an impeccable track record.

When asked about her favourite things to do in Chiswick, Giorgia is quick to suggest a walk by the river followed by lunch at the Bell & Crown, dinner at Villa di Geggiano and the farmers market were also on her list.

Originally from Rome, Giorgia has a real passion for food and in fact has part in a family business making gluten free Italian goodies.

020 8996 5120

07513 845 740

Jane Foster-Smith

Sales Historian

Jane is a long time resident of Brackenbury Village having purchased her property in 1991. After 30 years in the IT industry, Jane and her husband moved to Italy to convert an old winery cantina and run accommodation for visitors. While they were away from Hammersmith, Horton and Garton let and managed their property, being one of the first and longest clients. When they returned to their property, Jane’s relationship continued with Horton and Garton by joining the sales team in a sales support role. Jane is an active fundraiser and RNLI member and is passionate about local history and has taken on research of how Hammersmith, Chiswick and Shepherds Bush have been developed in order to contribute to our blog.

020 8819 0510

Autumn Carpenter


Autumn joined the team earlier this year to handle the Communications and Marketing of all things Purple. After graduating from the University of Sheffield, where she filled her free time with charity committee meetings and student radio, Autumn moved to Uganda to complete a Communications internship with NGO Irise International. Finally, after a brief foray down under in Aussie Radio, Autumn firmly bolted herself down to W12 where she took over as Social media and Marketing Manager at the Brackenbury Residents Association. Thanks to this position, you can test her flawless knowledge of all things Brackenbury Village,  from where to find the best Sunday night quiz, to place’s where to get the perfect flat white – or a Negroni should you be that way inclined. Now, at Horton and Garton, she’s extending this area knowledge to the wider Purple Patch and constantly on the lookout for new ways Horton and Garton can get involved in their community. If you want to keep up to date with all things West London then follow us on social media (@hortonandgarton) and subscribe to the Brackenbury Bitesize newsletter!

07458 067 843

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

Martin Clements

MNAEA Sales Manager

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


We're hiring!

Lettings Administrator

Want to be part of themost successful lettings team in Hammersmith and Shepherds Bush? We’re looking for someone with a strong work ethic who shares our values of integrity, honesty, hard work and professionalism to provide hassle-free lettings and property management to landlords and tenants in West London. 

If this sounds like you, email: