Transforming spaces, transforming lives
Callender Howorth is one of the UK's leading international luxury interior design practices, renowned for its stunning portfolio and memorable residential interiors. With offices in the French Riviera, New York, and Central London, our multi-disciplinary team of award-winning architects and designers specialise in interior architecture, interior design and build, with complete project management.
Our Story
Since its founding in 1997, Callender Howorth has been driven by a passion for design and an unparalleled commitment to excellence. Our team of experts has delivered 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. We pride ourselves on our ability to listen, to understand, and to translate our clients' desires into bespoke, luxury interior design solutions.
Our Services
At Callender Howorth, we offer tailored architectural interior design, build, renovation, and project management services to both residential and commercial properties throughout the UK, Europe, and North America. Our dedicated team of award-winning interior designers, interior architects, stylists, and project managers deliver innovative and bespoke solutions to each of our clients. Balancing creative design with constructive project planning allows us to focus on delivery in a quality service-led manner.
What We Do
We don't have a "house style" as luxury interior design is personal and specific to each of our clients and their families. Each of our projects is unique and completely customised for each client in line with their style, aspirations, and lifestyle. In mind of this, Callender Howorth consistently provides each client with a service that demonstrates its experience with the established portfolio that it holds. Each case reflects an understanding of the client's unique project intonation.
Our Process
Developing trust, sharing ideas, and establishing a positive connection to you and the project at hand through open and friendly discussion is the starting point for any project we carry out. During the briefing stage, we will have a series of exploratory conversations, listen carefully to your ideas, inspirations, and practical requirements, and begin to introduce our own responses and suggestions by showing you a range of visual references and examples.
Overview of Callender Howorth Reviews
Excellent Customer Experience
The reviews highlight the exceptional service provided by Callender Howorth, with customers praising the company's professionalism, responsiveness, and quality of work.
Design and Renovation Services
The company offers a range of services, including bathroom design, custom art selection, refurbishment, living room design, lighting design, kitchen design, home decor selection, bedroom design, interior architectural design, and interior decorating.
Praise for the Team
Many reviewers praised the team at Callender Howorth, highlighting their efficiency, effectiveness, and ability to listen to clients' needs and deliver results that exceed expectations. Mark and his team were often mentioned by name, with customers expressing their gratitude for their hard work and creativity.
Smooth and Stress-Free Experience
Several reviewers mentioned that the design and renovation process was smooth and stress-free, with the company handling everything from start to finish. This allowed clients to enjoy their newly designed and renovated spaces without any hassle.
Recommendations
All reviewers highly recommend Callender Howorth, with many stating that they would hire the company again without hesitation.

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