As a private advisory firm, we don’t just guide you through listings—we walk beside you throughout your property journey, making your move in one of the world’s most competitive property markets feel clear, seamless, and tailored.
Our Story
IIG Estates was founded with a clear purpose: to make owning property in London feel simple, personal and unique for clients who expect more than the ordinary.
Based in Mayfair, we specialise in residential sales and bespoke property management across Prime Central London. Our experienced team sources distinctive homes and long-term investment opportunities with the utmost discretion, and a focus on what matters most to you.
Born out of a long-standing investment legacy, our foundation combines London market knowledge with an international perspective. This unique lens allows us to identify meaningful opportunities and shape a strategy around them.
IIG Estates is much more than an agency. We are long-term partners guiding you through every property decision. Whether you’re acquiring a home, expanding your portfolio, letting a property, or investing across borders, we’ll find the London that fits your needs.
Vision
To redefine boutique real estate by setting new standards in service, trust, and performance—becoming the preferred partner for discerning property owners and investors in Prime Central London and beyond.
MISSION
To provide a highly personalised and professional property experience, specialising in the sales and management of Prime London real estate. We are committed to safeguarding our clients' investments, enhancing asset value, and delivering peace of mind—through precision, transparency, and a service-first mindset.
Our LEADERSHIP
Mark Shipman
Founding Partner
With over 35 years in real estate, Mark Shipman is regarded as one of London’s leading investment advisors. As a Founding Partner of Michael Elliott, he has overseen more than £20 billion in UK commercial property transactions, earning the trust of high-profile investors and institutions alike. Mark has also advised global banks like Nippon Credit Bank, Swedbank, Westpac, and RBS on complex strategic loan workouts. As Senior Partner at Metrus, he played a pivotal role in scaling the company’s portfolio from £300 million to over £5 billion.
His deep market insights and long-standing relationships are invaluable in helping clients navigate high-value acquisitions and investment decisions.
Philip Harrison
Founding Partner & Managing Director
Philip holds a strong track record in residential and commercial real estate. Following his study of Arabic at King Saud University, he brings cultural sensitivity and regional insight for clients investing from the Gulf and beyond. With his hands-on approach he has transacted over £50 million in real estate deals.
Philip’s experience across asset classes enables clients to make confident decisions at the most crucial points of their property journey.
Sulaiman Alajaji
Founding Partner & Managing Director
Established through a legacy of Asset Management at International Investment Gate, working closely and connecting high‑net‑worth Gulf investors, Family Offices and international buyers with prime residential opportunities in London and Riyadh. Sulaiman delivers a bespoke service—spanning discreet off‑market acquisitions, tailored property and portfolio management, and concierge-level support—backed by deep market knowledge and a network built across the UK and Saudi Arabia.
Every detail, every decision matters.
