Business Details
29 Years
experience
Luxury Interior Designers & Architects in London
Established in 1997, Callender Howorth has built a reputation as a leading international luxury interior design firm. Our expertise spans interior architecture, bespoke design, and comprehensive project management across residential and commercial properties. With a multidisciplinary team of award-winning designers and architects, we deliver tailored solutions for high-end projects in London, Paris, the French Riviera, New York, and Los Angeles. Our approach prioritises client collaboration, ensuring each project reflects individual aspirations and lifestyles. We specialise in renovating listed properties, creating state-of-the-art penthouses, and designing exclusive villas, combining creative vision with meticulous planning.Our teams 25 years of experience and commitment to excellence have solidified our position as trusted leaders in luxury interior design. We manage every stage of a project, from initial concept development to final styling, ensuring seamless execution and exceptional results. Our global presence is supported by English-speaking teams in key locations, including a dedicated build team in the south of France. Client satisfaction remains central to our work, with every project benefiting from our attention to detail and dedication to quality craftsmanship. We pride ourselves on fostering long-term relationships through transparency, expertise, and a passion for innovative design.
Services
Interior Design
Architectural Design
Project Management
Luxury Renovation
Interior Styling
Details
- Year established: 1997
Highlights and features
- We have 25 years of experience in luxury interior design and architecture.
- Our award-winning multidisciplinary team ensures exceptional design and execution.
- We provide end-to-end project management for residential and commercial properties.
- Our global presence includes dedicated teams in London, Paris, and New York.
- Client-centric approach prioritises tailored solutions and long-term relationships.
Services
Interior Design
Our interior design service creates bespoke residential and commercial spaces tailored to client preferences. We focus on harmonising aesthetics, functionality, and luxury, incorporating furniture, lighting, and material selections. Clients benefit from a collaborative process that transforms their vision into a cohesive, high-end environment.
Architectural Design
We specialise in architectural design for luxury properties, including renovations of listed buildings and new constructions. Our team ensures compliance with heritage regulations while integrating modern comforts. Projects span private estates, penthouses, and commercial spaces across global locations.
Project Management
Our end-to-end project management oversees construction, procurement, and coordination of suppliers. We ensure timely delivery, budget adherence, and quality control through regular site visits and client updates. This service guarantees seamless execution from concept to completion.
Luxury Renovation
We restore and modernise heritage properties and high-end residences, balancing preservation with contemporary upgrades. Expertise includes listed buildings, period features, and state-of-the-art amenities. Each renovation maintains architectural integrity while enhancing livability and value.
Interior Styling
Our styling service curates furniture, art, and decorative elements to elevate completed interiors. We source globally from established and innovative suppliers, ensuring every detail aligns with the clients taste. This final stage adds character and refinement to finished spaces.
People
Mark Howorth
Founder
Mark Howorth founded Callender Howorth in 1997 and has led its growth into an internationally acclaimed luxury design firm. With a career spanning Los Angeles, London, and the French Riviera, he brings 25 years of expertise in high-end residential and commercial projects.
Questions
What areas does Callender Howorth operate in?
We work across the UK, Europe, and North America, with offices in London, Paris, and New York, and projects in the French Riviera, Los Angeles, and California.
What types of projects do you specialise in?
We focus on luxury residential and commercial interior design, architectural projects, renovations of listed properties, and complete project management for high-end developments.
How does the design process begin?
The process starts with a consultation to understand client preferences, followed by concept development, detailed design plans, and project execution managed by our team.
Can you handle international projects?
Yes, we have English-speaking teams in key locations, including a dedicated build team in the south of France and a full design team in New York.
What sets Callender Howorth apart from other firms?
Our 25 years of experience, award-winning multidisciplinary team, and client-centric approach ensure tailored solutions that combine creative vision with meticulous execution.
