Business Details
29 Years
experience
Luxury Interior Design & Architectural Excellence in London
Established in 1997, Callender Howorth has emerged as a leading international luxury interior design firm, renowned for its bespoke architectural and interior design solutions. Our expertise spans residential and commercial projects across London, Paris, the French Riviera, New York, and Los Angeles, where we combine creative vision with meticulous project management. With a multidisciplinary team of award-winning designers and architects, we specialise in transforming spaces through tailored interior architecture, renovation, and styling. Our approach prioritises client collaboration, ensuring every project reflects individual aspirations and lifestyles. Over 25 years, we have cultivated a reputation for excellence in handling complex projects, including listed properties and high-end residential developments.Our commitment to quality extends to sourcing globally curated materials and managing construction processes with precision. By maintaining open communication and leveraging our extensive industry experience, we deliver spaces that harmonise aesthetic beauty with functional excellence. Our teams fluency in English and French further supports seamless client interactions across international markets. As a client-centric practice, we ensure every project is guided by a shared vision, from initial concept to final execution. This dedication to craftsmanship and client satisfaction has solidified our position as a trusted leader in luxury interior design.
Services
Interior Architecture
Interior Design
Project Management
Renovation
Interior Styling
Concept Designs
Luxury Renovation
Architectural Design
Bespoke Design
Global Project Management
Details
- Year established: 1997
Highlights and features
- We offer 25 years of experience in luxury interior design and architectural projects.
- Our award-winning team specialises in bespoke residential and commercial transformations.
- We provide end-to-end project management for seamless execution.
- Our English and French-speaking team supports international clients effectively.
- We maintain a global presence with offices in London, Paris, and New York.
Services
Interior Architecture
Our interior architecture services focus on creating functional and aesthetically pleasing spaces through detailed planning and execution. We specialise in listed properties and complex renovations, ensuring compliance with heritage regulations while integrating modern comforts. Our team collaborates closely with clients to develop designs that balance creativity with practicality, delivering spaces that meet exacting standards.
Interior Design
We craft bespoke interior environments tailored to clients' lifestyles and preferences. Our services encompass residential and commercial projects, incorporating custom furniture, lighting, and finishes. By prioritising client collaboration, we ensure each design reflects individual tastes while maintaining a cohesive aesthetic. Our attention to detail extends to sourcing premium materials and artisanal craftsmanship globally.
Project Management
Our comprehensive project management ensures seamless execution from concept to completion. We coordinate all aspects, including contractor oversight, procurement, and timeline adherence. By maintaining transparent communication, we guarantee projects are delivered on time, within budget, and to the highest quality standards, allowing clients to focus on their vision without logistical concerns.
Interior Styling
We enhance completed spaces with curated styling elements, including art, furniture, and decorative accessories. Our team sources unique pieces from global suppliers to add character and sophistication. This final stage ensures every project exudes warmth and personality, transforming functional spaces into inviting environments that resonate with clients' identities and aspirations.
Concept Designs
We develop initial ideas into cohesive design concepts through visual references, sketches, and 3D models. Our process involves collaborative client consultations to refine preferences and create tailored schemes. By integrating feedback, we produce detailed plans that guide the project's execution, ensuring alignment with clients' visions while maintaining technical feasibility and aesthetic coherence.
People
Mark Howorth
Founder
Mark Howorth founded Callender Howorth in 1997, bringing over 25 years of experience in luxury interior design. Recognised as one of London's leading designers, he specialises in creating bespoke residential and commercial spaces globally. His career began in Los Angeles, shaping high-end projects before expanding to Europe and North America.
Questions
What services does Callender Howorth offer?
We provide luxury interior design, architectural services, renovation, project management, and interior styling for residential and commercial properties globally.
How long has Callender Howorth been in business?
We have been delivering bespoke design solutions since 1997, with over 25 years of expertise in the industry.
Do you work on international projects?
Yes, we operate across London, Paris, the French Riviera, New York, and Los Angeles, with multilingual team support.
What makes your design approach unique?
Our client-centric methodology combines creative design with structured project planning, ensuring tailored solutions that reflect individual lifestyles.
Can you manage complex renovation projects?
We specialise in handling intricate renovations, including listed properties, with expertise in heritage compliance and modernisation.
How do you ensure project quality?
We implement rigorous quality checks throughout the construction process, with regular site visits and oversight of all contractors and materials.
Reviews (4)
Alena Verevkina
Sep 19, 2018
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Mark and his team are amazing! They are effective, efficient and they really listen to every request we have. Truly top luxury interior designers !!
Rumble Romagnoli
Jul 14, 2017
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Mark and his team transformed our property with minimal upheaval. Good work and thanks. Really enjoying the space.
Sarah Aranguren
Dec 14, 2016
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I have been referred to Callender Howorth by a friend, who was really happy with their work. They've done such a great job in my Chelsea apartment, they have transformed it with their stylish touch into a chic and pleasant place. They've made such efficient use of space that my apartment feels so much bigger than before. The team was very professional and responsive. I would hire them again, in a heartbeat.
Divita Raja
Oct 18, 2016
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Having just moved into our recently designed and renovated place in Nice I just want to say how effortless Callender Howorth made the design and renovation process. We loved the fact that we just were handed the key back and everything was ready for us to move in and use as our holiday home a real heartfelt thank you from me and the family.
