Meet the lettings team

Our lettings team works hard to ensure all our rental properties get the exposure they need. Unlike other agents, we do not work in competition with each other but as a team to show tenants the most suitable properties. We cover a wide area of West London including Notting Hill, Kensington, North Kensington, Bayswater, Marylebone, Earls Court and Chelsea for both long and short lets.

Liz studied modern languages and business at university but always had a passion for architecture and interior design. Now with over 30 years in agency Liz's reputation in the industry is undisputed. Our business has been built on the back of our clients' respect for her integrity and straightforward approach to everything we do as a brand.

I'm a frustrated architect at heart and I never tire of property. I like to build long-term relationships with my clients; nothing is more rewarding than knowing they completely trust me with their biggest investment.

Annabel Kastelic - Lettings Director

Annabel Kastelic

Director of Lettings


Annabel was born and raised in London and has experienced its vibrancy and culture first hand. After graduating from the University of Portsmouth and obtaining a degree in Sociology, Annabel threw herself straight into the property industry starting at a large corporate estate agency and specialised in short lets during her time. Six years later she progressed onto Mountgrange to offer a more personable and specialised service for landlords, bringing with her an array of experience particularly within the short let market.

I enjoy working in a tightknit team where customer service is the focus, we are able to work together efficiently and seamlessly to achieve the best results for our landlords and tenants alike.

Working with you guys is really low hassle, and you’re always very responsive to my questions! For a first-timer like me, it’s really great to have the support I’ve had from you.

Tenant, Kensington

Kate Mason

Director – Country Office


Kate left a successful career in IT several years ago to manage rural estates and properties in the Cotswolds for private clients. She dealt with all aspects of estate services from agricultural and land management to sales, lettings and property finding. This experience was fundamental in her most recent role in sales at an exclusive lakeside estate.

I’m so excited to be joining the team at Mountgrange and having the opportunity to be so integral in extending their reach to the countryside

Laura Vorosmarty

Associate Director – Accounts


Laura joined the company in 2007 having initially worked in Media Marketing at a publishing company in Budapest. Laura has been instrumental in maintaining a high level of efficiency in our Accounts Department. Having lived for several years in the Kent suburbs with her young family she enjoys the energy of Notting Hill during the week.

One might think that doing accounts is the least exciting role; however, at Mountgrange I have the autonomy to add my inimitable brand of diligence and creativity to the job.

Mountgrange Heritage have been successfully letting my small flat for over twenty years now. They have been a pleasure to work with; they have been efficient and have taken time and trouble when details have needed sorting out.

Landlord, Notting Hill

Andrew Johnstone

Associate Director


Having graduated from university with a degree in business and finance, Andrew began his career in commercial property working for an independent firm of chartered surveyors. After four years he decided to make the move to the residential lettings department of a west London agent where his passion for the area and role flourished.

I joined Mountgrange Heritage because the team have integrity and an ethos of getting results while maintaining excellent customer service.

Henry Liu

Associate Director


After studying design at Loughborough University, Henry started working for an infamous department store in London, here he learnt exceptional customer service and sales skills. Three years later he moved into Estate Agency; where he implemented these skills and spent the next six years fine tuning and incorporating them with his landlords and tenants in the unique London lettings market.

Mountgrange Heritage is an estate agency that values honesty, integrity and delivering exceptional service on a personal level. I am thrilled to be part of such an experienced team of property professionals.

Katie Hellewell

Lettings Associate


After obtaining my degree in Interior Architecture I decided to relocate to London, a move which was motivated by the pursuit of better opportunities and a desire to expand my knowledge in the property field. On that journey, I have delved into various aspects of the property industry, including design, finance and property management. I feel that I can now transfer those skills and combine them with my passion for delivering excellent client service to a role in the busy London residential lettings market.

I am thrilled to join Mountgrange Heritage who embrace the values I respect. Not least as pet friendly letting agents they understand that my rescue cockapoo, Theo, had to move with me!

Emily Atkinson

Lettings Associate


Emily previously worked in the Fashion industry as a Garment Technologist, and had a change of career during covid into the Property industry where she now has over 3 years experience. Starting in her home town, Beaconsfield and moving onto locations including the City of London, Chelsea and Notting Hill. In her free time, she goes skiing, figure skating, and works on her handmade luxury lingerie brand.

I’m excited to have joined the team at Mountgrange Heritage and looking forward to a new challenge!

Courtney Lewis-Powell

Tenancy Manager


Courtney has been working in Tenancy Progression since leaving the University of Roehampton with a law degree in 2018. She has experience working for a large corporate agency and wanted to put her lettings administration skills and experience to use at Mountgrange. Outside of work, Courtney enjoys yoga and spending time with family.

I’m passionate about ensuring every client receives an unrivalled level of service. I’m excited to be working for an agency where people - both clients and staff, really do matter.

Kathryn Root

Tenancy Progressor


Kathryn has been working in the industry since 2018, when she started her career with a successful independent agency in Surrey. She decided to move to London in 2021 and has put her quality customer service to use in a highly competitive market. Every weekend, Kathryn travels down to Surrey to horse ride and to get her fix of the countryside.

I am thrilled to join the welcoming team at Mountgrange Heritage. Throughout my career, I have found immense satisfaction working with independent agencies, where prioritising customer service has been a constant commitment. Being part of a team that shares these values allows me the opportunity to dedicate time and attention to each individual, ensuring a personalised and exceptional experience for our clients.

Elizabeth Walker

Senior Associate


Elizabeth moved to London in 2018 and started her career in property working at a corporate agency in Residential Lettings for over four years. Elizabeth developed how to deliver exceptional customer service and sales skills and learnt the importance of building long lasting relationships with landlords and tenants. She decided to join an independent agency were she brings forth a unique blend of expertise, dedication and enthusiasm for property. Elizabeth enjoys running and finding a local restaurant to rave about!

I’m delighted to be part of the Mountgrange Heritage team and to be surrounded by experienced property professionals. I am excited to embrace my new chapter here and to create new long lasting relationships.

Sharon Evans

Office Manager – Notting Hill Office


Sharon has been working in the world of Estate Agency for over 20 years and is still going strong. Her role as Office Manager is pivotal in the efficient running of our busy Notting Hill office and her calm manner and approach have a positive influence on the team.

No two days are the same which makes the job very interesting. Because the property market is continually moving there are always new challenges to face with the team.

Having had over 30 years’ experience in the Prime Central and West London property market and owning her agency in Kensington Marie still has the same aim to provide a personal service with the emphasis strongly focused on customer care, attention to detail and a willingness to ‘go the extra mile’.
She has developed a reputation for helpful, friendly service based on honesty, reliability and results and prides herself on providing personal service individually tailored for each client’s specific needs.

I am very happy to have joined the Mountgrange Heritage team as a consultant and look forward to a successful relationship with an independent agency with the same values and work ethic as myself.