Meet the team


In 2018 John Brown and Mark Youll decided to combine their
considerable 90 years of combined property talents and knowledge to form in our opinion ‘the most experienced agent in the Croydon.


Mark Youll


Mark has been working in the area since 1982 and founded  MarkYoull Estate Agents which has been operating in the Purley area since 1995. He is married and lives locally with his wife and 2 children. In his spare time he likes to play golf, but only occasionally because he is always working! Mark is also a loyal and sometimes frustrated supporter of Crystal Palace Football Club.



John Brown

John finds it hard to believe that he established the business in 1977 let alone the fact that he started in Estate Agency in 1966!! On a broad-brush guesstimation John has probably sold over 5,000 properties in his career and still maintains his enthusiasm and professionalism often being called upon for his expert advice always given in a friendly manner.


Nicki Delacy - MNAEA

Associate Partner

On completion day our office is often adorned with flowers or chocolates. All gifts for Nicki Delacy from satisfied Vendors and Purchasers. Nicki joined the firm only in 2012 and impressed John Brown so much that sh within a few years was made an Associate Partner, responsible for Negotiations and Valuations. Nicki is also an active member of the National Association of Estate Agents (Propertymark NAEA)

Shirley Charlton

Shirley our exceptionally efficient Administrator has now taken her skills with her to the other side of the office as a Sales Negotiator. Her calming and pleasant manner is already proving a major success. Shirley enjoys living and working locally enthusiastically promoting the advantages of living in this pleasant corner of Surrey.


Helen Fitzgerald

Helen is our latest ‘home grown’ addition to our already expert sales team. Born and scholled locally Helen has been involved in estate agency for over 15 years. When not selling house Helen Spends three days a week living on her floating home _ a 45ft Canal Boat.

Tracey Finn-Evans

Tracey is out trusted, friendly and reliable 'Weekend' Assistant having been with John Brown for over 10 years, in which she has made many friends and acquaintances. Although now living away from Old Coulsdon Tracey still has a strong sense of community and strong ties with Keston Primary School

James Kirkby

James is our own Letting Manager with almost 20 years’ experience of the property market, having spent half of that time with John Brown Mark Youll. Without question James is the ‘homespun’ member of the team having been born and bred in Old Coulsdon. James brings a wealth of knowledge ,experience and qualified for the Challenges of the rental market. .

Matching Buyers and Tenants with Seller and Landlord

In and around Purley, Old Coulsdon, Kenley and Caterham and surrounding areas


I'm looking ...

Book a Property Valuation