Our Story

Our Story

We think that the whole is greater than the sum of its parts.


Together, Jamie Gunning, Guy Passey and Charlie Philip bring over four decades worth of industry experience – from names such as EA Shaw, to CBRE and Kier Developments. Whether it be boutique companies such as Great Marlborough Estates, GFZ Investments and Proma – or major corporate enterprises such as Legal & General, Aviva and Land Securities, we’ve done everything from helping clients transform a single residential property, to working on large-scale projects that re-shaped central London villages.

As a team, we have successfully advised on over £4bn worth of gross development value in London. Which is just one of many reasons why our clients love coming back to Sq. One.

Sq. One Real Estate is a true joint venture and will work in active partnership with leading commercial property advisors Farebrother, Tuckerman and Union Street Partners. Together with our partners we blend heritage and a proven track record, with fresh thinking and a whole new approach.

We’re consultants – not agents. But above all, we’re a team. With a friendship spanning 13 years, our individual but complementary skills are bound together by the belief that every good team – like every good project – is based on a trust, transparency, loyalty and the ingenuity to exceed the boundaries of convention. Which is exactly how we work with each and every client.

Photo of Jamie Gunning
Jamie Gunning


+44 (0)79 6775 1394

Photo of Guy Passey
Guy Passey


+44 (0)79 6137 5758

Photo of Charlie Philip
Charlie Philip


+44 (0)77 6622 2647