Denton Corker Marshall


Stephen Quinlan, Partner

Stephen studied architecture at the University of Edinburgh and began his career as an architect in the public sector, working on a very broad range of architectural projects.

Stephen established Denton Corker Marshall’s London office in 1990, subsequently becoming a main board director of the international practice. He now acts as the Managing Partner of the European practice.

He has recognised skills in project leadership and client liaison and, as such, is personally involved in each of our projects, maintaining the constructive relationships essential to successful projects. His background in the delivery of award winning projects brings an intimate knowledge of the needs of clients and the part played in world class projects by rigorous management processes.

Stephen is experienced in all aspects of the design process and project management on complex projects. With a background of experience with prestige projects, he is familiar with the demands of public clients and the need for rigorous management control over the project process.

In addition to his design practice responsibilities, Stephen has contributed to professional journals, lectures at academic institutes and conferences and acts as a judge on design award panels.

John Rintoul, Partner

John studied architecture at Heriot-Watt University/Edinburgh College of Art in Edinburgh. His early experience was in London, working on major commercial projects in the City.

In 1992, John joined Denton Corker Marshall in Hong Kong working on major commercial, hotel and residential projects as a Project Associate. Before returning to the UK in early 1997, he saw through to completion a US$45m mixed-use commercial project as a first of a five phase Masterplan development in Ho Chi Minh City, Vietnam.

John was the Project Associate for the Sanderson Hotel, London, Ian Schrager’s 150 room flagship in the Grade ll* Listed Sanderson Building. Here, in collaboration with Philippe Starck, DCM helped to create the first truly boutique hotel in London.

John was the Associate Director in charge of the prestigious £120m Manchester Civil Justice Centre, winner of the 2008 English Partnership Award for Sustainability, and 28 other prestigious design awards, including the RIBA National Award for Architecture and a nomination for the 2008 Stirling Prize. Also in Manchester, John oversaw other major commercial projects including a 10,000m2 new office building on New York Street and a £60m mixed-use development on Whitworth Street West. In London, John was Director in charge of the project teams for Plot No. 1 at the Athletes Village, The London Edition Hotel and both 20 Cannon Street and 28 Savile Row offices.

John is currently leading the project teams on four high-rise Private Rental Sector residential and co-living projects in Manchester and Salford with Partner Irwin Lopez, in addition to Maslow’s Soho, a co-working and members club building in London and the new British Embassy in Rome.

Irwin Lopez, Partner

Irwin joined Denton Corker Marshall in 2008 becoming a Partner in 2014. Irwin is responsible for the running of the office in Manchester and acts as the technical project lead on significant projects within the North West.

Irwin has considerable experience in the management and delivery of large scale and complex projects particularly those with specialised procurement routes. He has had extensive involvement as project leader on a wide range of building types including public buildings, residential, leisure, offices and hotels ranging in value from £5m to £75m. This experience is complemented with well-practiced methods in the running of projects for multi-stakeholder clients and reporting at key strategic review panels. These are skills developed through his role as a Technical Advisor to Her Majesty’s Court Service (now Ministry of Justice) for a number of years.

Irwin was the team leader on the new build Exhibition Centre Liverpool and Pullman Hotel project which was completed in 2015. The project was within the World Heritage buffer zone of the Liverpool waterfront dock area and involved joint funding from the Chrysalis Fund and Liverpool City Council.

Irwin is also involved in a number of large scale projects including leading the design architectural teams of Trinity Riverview and Riverside PRS developments, Union T1 + T2 co-living projects, the Greengate residential tower and a high profile leisure project in the North West.

Irwin has been a mentor with the RIBA Student Mentoring Scheme since 2016– an initiative between the University of Manchester, the Manchester Metropolitan University and the RIBA to provide architectural students with practice experience.

Stephen Quinlan


John Rintoul


Irwin Lopez