Property Agents




Asset Class

Real estate

Sector Focus

Construction & Real Estate

Customer Type

Property adviser

Marcus O’Brien

Spear’s Review

Since 2016, Marcus O’Brien has been leading the growth of Beauchamp Estates’ private office team, cutting his teeth under the tutelage of Gary Hersham, a legend within the industry. 

The aim of the private office is to provide a service to high and ultra-high net worth clients, discovering their objectives and keeping a single adviser - often O'Brien himself - as their single point of contact no matter whether they're interested in rural, international or prime central London property, purchase or rental.

In 2020, O’Brien led the sale of Britain’s most expensive house, 2-8a Rutland Gate in Knightsbridge, reportedly sold for £210 million, and has since bought and sold fine country houses including a 200 acre estate in Surrey for £50 million. He reports having achieved ‘one of – if not the – highest-value rental deals in UK history’.

Adviser Profile

Marcus has an enviable reputation amongst a select group of ultra-high-net-worth clients. He is consistently entrusted by the leading private banks, family offices and law firms to act for their clients discreetly while adding genuine value and expertise. 

Over the course of the past decade, Marcus has successfully transacted on several record breaking & remarkable deals. Among his many accolades, he handled the sale of the most expensive residential sale recorded to date in the UK, as well as the most valuable rental contract in British history. These accomplishments, all achieved before the age of 30, demonstrate Marcus' exceptional talent and encyclopaedic knowledge of the super prime sector real estate market.

Rank: Recommended

Recommended 2023, Property Agents




24 Curzon Street, London, W1J7TF

Share on