Callender Howorth Interior & Architectural Design

Callender Howorth has just completed a major refurbishment of our house in Hampstead. We are so pleased with the results. They really listen to our ideas and made our house feel like us and look amazingly stylish. They also project managed the complete build. Look nowhere else! Use Callender Howorth.

Mark's transformation of my home was absolutely astounding beyond what I had imagined! I feel like my home really represents my spirit and lifestyle! I love how he included wellness into the design giving my space a zen yet stylish feel. Thank you Mark and your amazing team at Callender Howorth!

Am so happy with the amazing work that Callender Howorth have done to completely redesign and build my new apartment in Nice.

“Thank you for styling our home and bringing us up date. What a transformation. Thank you all so, so much for everything.”

10/10 CH team!! We love you. Thank you for our new house.

Just want to say a huge thank you to the team at Callender Howorth for transforming our home in Kensington. We love it!

What a difference you have made to our house and life! It's been an absolute joy to work with you all. Thank you so much for everything!

“ Want to thank the Callender Howorth team for all of their design advice on my house in Notting Hill. An amazing transformation!”

Our new home in Cobham is now finished and we are very happy indeed. Thank you to everyone at Callender Howorth for everything you have done.

We are over the moon with our finished penthouse in Knightsbridge. Callender Howorth’s styling team have found us some beautiful furniture and art. The completed look is so stylish. Highly recommended!

We undertook a very large project with Callender Howorth to completely gut and renovate our “forever home” in Hampstead. Adding a completely new basement and a fantastic contemporary glazed extension really has made the main living areas fantastic. Their attention to detail and creativity is exceptional -they are also a really lovely team to work with. Could not be happier.

We bought our listed house in Hampstead just over 2 years ago. We chose Callender Howorth as they have much experience with the design and renovation of listed buildings. We are now moved in after extensive works to the house. We are simply over the moon with the results and just so pleased with all that Callender Howorth have done for us.

A big thank you to the amazing team at Callender Howorth that have made designing our family home so much fun! We cannot thank you enough and are absolutely delighted with all that you have done. I would highly recommend Callender Howorth to friends and family.

From start to finish we enjoyed having Callender Howorth work on our project. We were not sure what we wanted and Callender Howorth's team was very quick at catching up what we liked and what he could do. We purchased our townhouse because of the stunning location above Nice in the south of France. We thought there might be something interesting to do but couldn't have imagined the result. We love our new home. It's very modern yet it still has it's style with an original rocks wall in the main room, and kept the fireplace in the bedroom upstairs.

Mark and his team were really great throughout the process of our refurb. They tailored the design closely to our requests and filled in the gaps when we were open-minded. We're really pleased with the result. Our living room is a place that the whole family loves to spend time in.

What a fantastic experience we had in doing up our home in Sevenoaks. Mark and the team brought some really great ideas to the table - the end result is a wonderful space I and the family love to live in.

Callender Howorth were a pleasure to work with, thank you for all your assistance and professional approach when it came to collaborating on a blog!

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.

A friend introduced me to Mark at Callender Howorth after he had his London apartment redesigned. I wanted my space renovated into something more modern and in-style. I kept an open-mind while requesting a relatively minimalist design. I am really happy with the outcome, the CH team are amazing. They listened to my requests, stayed within budget and delivered on time. All I want to do now is stay home and enjoy the amazing ambience they created - all thanks to Mark and his team.

I chose Callender Howorth to renovate my penthouse in Chelsea. I wasn't entirely sure of the style I wanted to go for but Mark and the team brought my space to life and exceeded my expectations; I was so pleased with the finished product! They were so helpful throughout the project, and took care of every minute detail. I'd definitely use their expert services again if I am to renovate another property.

Our new basement conversion has completely changed the way we use our house. Thanks to the team at Callender Howorth who managed to create a really bright and spacious design that does not feel like you are in a basement –genius.

The team at Callender Howorth provided an exceptional service when I contacted them to redecorate my London townhouse. They delivered the project on time, they listened to what I wanted and they stayed well within my budget. Everyone on the team has an eye for what works. The textures, colours, and patterns they chose look fabulous. I especially love my new open-plan kitchen/ living room, which has totally opened up and created more space on the ground floor. Thank you so much to Mark Howorth and the rest of the team for my amazing home.

We used Callender Howorth to design and oversee the gut renovation of our apartment in Nice. Mark Howorth was recommended by a local realtor who had seen one of Mark's completed projects in Nice. We are convinced that the decision to hire Callender Howorth was the single greatest factor in the success of our project. Mark and his team transformed a dark, boxy and very dated space into a spacious, light, highly functional and sophisticated home, which showcases the glorious sea view and contained just the right amount of "wow." Mark brought to the project an uncanny ability to optimize space and functionality. His design opened the sea view to all major areas of the apartment and made the space look and feel much larger by removing walls, re-apportioning rooms and creating a series of unified spaces that flowed seamlessly with plenty of storage. Mark and the team had great style-their use of high quality materials and selection of furniture, colors and textures created an elegant, sophisticated space that was also comfortable casual and bright. Mark's sense of color and texture was that of a true artist. He highlighted the sea view by setting it off with light, natural and neutral colors and textures but accentuated the blue through strategically placed rugs, cases and a dramatic evocative blue accent wall that is loved by everyone who comes into the home. Mark also used dramatic and sophisticated lighting design, to create different moods. Callender Howorth not only provided exceptional design work but also provided excellent project management. Although we had renovated homes before, we were never able to be truly "hands off" as the designers, architects and contractors required close supervision to ensure we got what we wanted in the time and budget agreed. This was not our experience with Callender Howorth. They were organized, reliable, on top of everything, anticipated issues, and delivered on what they promised and managed professionally the contractor and subcontractors for the job. They brought in a first rate English speaking/run construction firm with deep experience in Nice. Between Callender Howorth and our Contractor, we felt like we had the "A team" whom we could trust completely to get the job done on time, on budget and as specified. Because of the distance for the the US, we used Callender Howorth to source all furniture and fittings and housewares. This was a God sent, as we were able to get off the plane and walk into a fully rennovated and equipped apartment just five months from design inception. We will never forget the feeling of walking into the sunning finished space for the first time. The work of Mark and Callender Howorth went way beyond our dreams and expectations. We can not recommend them highly enough.

Just want to thank all of the incredible team at Callender Howorth that have made our dream home in Kensington come true. We are really delighted.

Callender Howorth designed both my house in Windsor and more recently a holiday villa for us in Greece. We really enjoy the process of working with Callender Howorth because they ³got us² understanding our requirements, needs and aspirations. They really impressed at how well they handled and project managed the project in Greece, making it a more relaxing journey for us too. We now have two amazing houses in two beautiful locations I would highly recommend Callender Howorth.

Just want to say a big thank you to everyone at Callender Howorth. We love our new home and you made the whole renovation go so smoothly and finished dot on time for the birth of my daughter! Especially thanks for the quirky design ideas that really have made our new home so special.

I bought a house in Marylebone that had lots of what I wanted but needed some creative thinking. I worked with Mark Howorth and his team at Callender Howorth for over a year on the designs and build. Am delighted with the end result. Mark interpreted my taste and style perfectly - he knew I wanted a contemporary home that could be used for both entertaining and relaxing. On his suggestion we removed a number of internal walls and added floor to ceiling glass windows facing into the courtyard - which really helped open up the space and make it light and bright. I love the kitchen which works for our lifestyle. I didn’t think that I would use this space as much as I do – the flow from kitchen into the courtyard or into the open dining area is great in summer especially. Where I think Mark really made the difference was with the personal touches - personalized art in particular which I wouldn't have found with mark and the team. in total - was weighing up whether or not to use a designer or wing it myself - total no brainer in retrospect - enjoyed the experience and so glad I used CH.

Callender Howorth provided us with a full design and project management service for an extension and full refurb of our maisonette. They liaised with planners, architects, building contractors, kitchen companies and advised on sourcing of materials and interior furnishings. The project took 1 year from conception to completion. The people at CH were creative, professional and importantly a pleasure to work with. I would and have recommended them successfully to friends.