London • New York • Côte d'Azur

Luxury Interior Designers

Callendar Howorth is one of the UK’s leading international luxury interior design practices renowned for their stunning portfolio and memorable residential interiors.

With offices in the French Riviera, New York, and Central London, their multi-disciplinary team of award-winning architects and designers specialise in interior architecture, interior design and build, with complete project management.

A passion for design, an unparalleled commitment to excellence, and 25 years of experience has led Callender Howorth to deliver exceptional design and renovation of exclusive villas on the Cote d’Azur, restoration of listed London townhomes to “state of the art” penthouses in Manhattan.

Our clients are at the heart of every project and benefit from a complete project management team. English and French spoken.

Founded and led by Mark Howorth in 1997, Calendar Howorth continues to create and transform uniquely tailored homes that embrace the art of luxury design.