The founders of Lane Castle bring experience from diverse and complimentary backgrounds, having spent time as client as well as consultant/advisor.

This different knowledge base has given them a sound platform from which to operate, when challenging decisions are required, which is a strong attribute in the eyes of Lane Castle’s clients and partners.

“Between us we bring over 50 years of experience in development, construction and property marketing.”

– Mark O’Grady


William Avery is one of the founders of Lane Castle with a wealth of experience in construction. He is a member of the Institute of Directors, the Chartered Institute of Building, the Carpenters Company and is President of the Institute of Carpenters.

Previous to his current position, William worked as a property developer for a subsidiary of the Garbe Gruppe, heading its UK operation, and as a director of international property consultant, Colliers CRE.

William has dealt with all aspects of the property market and its institutions. He also has extensive experience of managing both operations and resources in organisations with budget responsibility, both at corporate and project specific levels.

At university, William gained a BSc in Building and an MSc in architecture.

He is a keen yachtsman, with his Yachtmaster (offshore) credentials has skippered wins at the annual property regatta, the Little Brittain Challenge Cup. He is also an avid amateur musician, performing regularly in London and helping at his local church.


Mark O’Grady is one of the founders of Lane Castle and has over twenty five years of experience in the property industry, across a range of specialisms including site acquisition, design, planning, sales & marketing and management. He is a member of the Institute of Directors.

Previous to running Lane Castle, Mark worked as Land Director (being one of the original team of six) at the then Berkeley Group/Thames Water joint venture, St James Group, where he was responsible for the acquisition, planning and design of some of London’s premier developments: New River Village in Hornsey North London; New River Head in Islington; Grosvenor Dock in Westminster, amongst others.

One particular project that Mark worked on, was the development of OneSE8 in Lewisham. The scheme grew significantly through careful planning and negotiation over three years from 497 units to almost 1,000, plus 14,000 sq ft of office space, 8,000 sq ft of restaurant and a gymnasium. The project is one of the most successful residential developments in South East London and acted as a catalyst in the wider regeneration of the region.

Mark’s subsequent roles included managing a team, which secured planning permission for the redevelopment of the Creekside area of Deptford. This development further assisted the evolution of the area.

Mark is keen cyclist: Having completed the London to Paris ride, together with fellow riders over £135,000 was raised for charity. He has also completed various endurance walks, including the 3 Peaks Challenge and the 4 Inns and enjoys off road driving in Iceland in his customised Land Rover Defenders.