Drawing on more than 20 years of international experience, including board-level leadership in London, Architect Jonny Sin has launched a boutique architecture studio spanning both hemispheres. Meet Sin&Co….

With studios established in London and Auckland and strategic partnerships in Spain, Sin&Co. is specialising in premium hospitality and lifestyle senior living environments. The studio designs elegant, functional spaces that respond to their context, often drawing on local communities, craftspeople, and culture, while balancing creativity with operational performance.
Founded in 2025 by Jonny Sin, Sin&Co. combines deep sector expertise and a global perspective. The studio offers full architectural services, strategic consultancy, and client-side representation for developers, operators, and brands seeking an experience led, performance driven approach.

Image credit: Sin&Co.
Founder Jonny brings more than 20 years of experience delivering high-profile developments across the UK, Europe, the Middle East, Australasia, and East Asia. Over the past 14 years, he has worked exclusively in the hospitality sector, serving as a Board Director at ReardonSmith Architects where he led major projects for clients including The Dorchester Collection, Grosvenor Estates, and The Reuben Brothers, and collaborated with global brands such as Rosewood Hotels & Resorts, Mandarin Oriental, and Wanda Vista.
Sin&Co. is supported by strategic collaborations with trusted international partners. Among them is BAT – Bilbao Architecture Team, one of Spain’s leading multidisciplinary architecture firms, with over 40 professionals across architecture, interior design, and construction. BAT serves as the strategic and technical partner for the UK studio, providing Sin&Co. with a powerful project delivery platform.
As part of this collaboration, Peru Cañada and Xabier Arranz, partners at BAT, work closely with Sin&Co., strengthening the studio’s reach across the UK and international markets.
“Sin&Co. is a studio built on precision, clarity and care,” says Founder Jonny Sin. “We are intentionally boutique, strengthened by strategic partnerships. Our value lies in rigorous design thinking, close collaboration, and the ability to navigate complexity while delivering work that performs creatively, commercially and operationally.”

The Beaumont Hotel | Architects and image credits: ReardonSmith
Adding further depth to the studio is Michael Sin, Jonny’s father and Non-Executive Chairman of Sin&Co., based in New Zealand. With more than 40 years of expertise in the care and senior living sector, he will deliver valuable insight into the growing silver economy and the design of environments that enhance quality of life, promote independence, and support physical and emotional wellbeing.
Jonny, originally from New Zealand, draws on this personal and professional heritage to inform the studio’s global outlook and values. Sin&Co. blends international insight with local expertise to deliver projects that are both refined and responsive.
While newly established, Sin&Co. is built on a foundation of proven leadership, collaboration and global perspective. The studio offers the agility of a boutique practice backed by the strength and reliability of an international network.
Main image credit: Sin&Co.