We are an award-winning AJ100 architecture and design practice with over 35 years of experience.
Founded in 1991, the practice has grown into a market-leading architectural firm known for its innovation, technical expertise and design excellence. Now led by David Keirle, Andy Simons, Lee Nightingale and Nick Marshall.
With studios in Central London and Kent combined with partnerships worldwide, we have built a strong reputation for delivering world-class sports venues, arenas and elite training facilities. Our portfolio also extends across education, residential and mixed-use developments.
How We Work
Collaboration is at the heart of our approach. We pride ourselves on cultivating strong, enduring partnerships with clients in the UK and internationally, ensuring every project benefits from our commitment to excellence and tailored design solutions. A high volume of our projects are undertaken under strict NDAs, reflecting how confidentiality and client trust are paramount to our work.
Our vision is to lead the way in the design of sports environments worldwide, while delivering exceptional residential, education and mixed-use developments. This ambition takes us across borders, where we team up with trusted local partners to create solutions tailored to each unique context.
While our studio culture is relaxed and open, our focus is sharp. We r pride ourselves on delivering responsive, down-to-earth service,
guided by clear thinking, practical advice and a proactive, can-do mindset.
Locations:
London Office
Sevenoaks Office
Our Culture
We believe great design starts with great people. By respecting the ideas and contributions of every individual, we foster an environment where all voices are acknowledged and valued.
We grow stronger together supporting one another, collaborating openly and celebrating shared successes to foster a culture of trust, belonging and teamwork. We embrace diverse perspectives, knowing they lead to better outcomes and we dedicate our efforts to work that drives real, meaningful impact for our team, our clients, and the world around us.
Name Placeholder, Position“We work across a diverse range of projects and take pride in consistently delivering through collaboration, learning from and supporting one another to achieve the best outcomes.”
Awards
We are proud to have won and been nominated for multiple prestigious awards.
Each award recognises the quality and care we put into every project, creating spaces that leave a lasting impression.
Sustainability
Sustainability is essential to shaping the future. We design responsible, inspiring buildings that prioritize long-term impact from the outset. Through site-specific design, flexible planning, careful material selection, durable construction, and resource efficiency, we create spaces that enhance wellbeing, supported by rigorous quality assurance at every stage.
CSR
At KSS, architecture shapes communities, enriches lives, and fosters wellbeing. Corporate Social Responsibility underpins our practice through four pillars: Staff Wellbeing, Projects, Environment, and Community. Aligned with UN Sustainable Development Goals, we embed social value throughout, delivering inclusive, sustainable, lasting impact.