Luxury Interior Design
ABOUT US
Welcome to Jonathan Sethna Interiors, where high end design meets a genuine commitment to creating exceptional spaces. At our core, we are more than just an interior design company in Sussex – we are partners in your journey to transform spaces into reflections of your dreams.
With us, it’s not just about the aesthetics; it’s about the personal connection we forge with each client, whether they are based in London, Surrey, Mayfair Chichester or Brighton and Hove. We take pride in being down-to-earth and approachable, fostering an atmosphere where your ideas and aspirations take centre stage. Honesty and integrity are the pillars of everything we do, guiding our actions and decisions as we navigate the intricate world of luxury interior design.
Our Sussex-based interior design company is dedicated to understanding your unique story and translating it into captivating luxury design concepts for our clients based in London, Surrey, Mayfair, Chichester, Brighton and Hove and surrounding areas. We thrive on the relationships we build, ensuring that every collaboration is based on open communication and mutual respect. At Jonathan Sethna Interiors, we don’t just create residential and commercial spaces; we create experiences that resonate on a deeply personal level.
With our interior design studio, you can expect more than just a transaction; you can expect a partnership rooted in authenticity and shared goals. Together, let’s embark on a journey to turn your vision into reality – a reality that speaks volumes about who you are and what you cherish.
INTERIOR DESIGN PROCESS & APPROACH
Jonathan Sethna Interiors is a high-end interior design company in Sussex offering a comprehensive range of specialised services tailored to transform commercial and residential spaces from London to Mayfair and Surrey, into captivating and functional environments. With a client-focused approach, our interior designers meticulously address each project on an individual basis, working closely with clients to understand their unique vision and requirements.
Our luxury services encompass a spectrum of design phases. Beginning with space planning, we optimise layouts to maximize functionality and flow. Architectural detailing adds depth and character, while concept design lays the foundation for the project’s aesthetic direction. Through interior design development, we refine ideas into actionable plans, incorporating client feedback at every stage.
Furniture layouts are meticulously curated to harmonize with the overall interior design concept, and lighting layouts are strategised to enhance ambiance. Our bespoke joinery designs infuse spaces with unique, tailor-made elements. We provide comprehensive specifications for ‘shell and core’ materials, ensuring a seamless integration of luxury design elements.
Our expertise extends to FF&E (Furniture, Fixtures & Equipment) procurement, where we source and select items that align with the interior design concept. Visualising the end result, our computer-generated images offer a preview of the finished space, aiding in decision-making and project communication.
Jonathan Sethna Interiors is committed to delivering holistic high-end interior design solutions, where attention to detail and client collaboration converge to create spaces that surpass expectations.
client testimonials
I worked with Jonathon to deliver the refurbishment of the common parts of Cumberland Mansions, a large apartment building in central London. I found him extremely professional and creative and able to work within the budget restraints. The work is now complete, and the residents are delighted with the results.
LADY JUNE DILLEY
CUMBERLAND MANSIONS, MARYLEBONE
I worked with Jonathon to deliver the refurbishment of the common parts of Cumberland Mansions, a large apartment building in central London. I found him extremely professional and creative and able to work within the budget restraints. The work is now complete, and the residents are delighted with the results.
LADY JUNE DILLEY
CUMBERLAND MANSIONS, MARYLEBONE
PRIVATE RESIDENCE, SURREY
We have worked with Jonathan on various projects and have always found his work to be of a very high quality. He has a fantastic eye for matching colour schemes and design ideas, with a great attention to detail. We look forward to working him with plenty more collaborations in the future.
JOSHUA DELANE
We have worked with Jonathan on various projects and have always found his work to be of a very high quality. He has a fantastic eye for matching colour schemes and design ideas, with a great attention to detail. We look forward to working him with plenty more collaborations in the future.
JOSHUA DELANE
I recently had the pleasure of working directly with Jonathan Sethna. The service from start to finish was of the highest level and I would certainly, recommend Jonathan Sethna Interiors.
DANIELLA LAURANT
PRIVATE RESIDENCE, SURREY
I recently had the pleasure of working directly with Jonathan Sethna. The service from start to finish was of the highest level and I would certainly, recommend Jonathan Sethna Interiors.
DANIELLA LAURANT
ELEVENS, SURREY
I had the honour of working with Jonathan on a commercial project and was enchanted by his good taste and talent!
Jonathan is a very competent person, easy to deal with and understanding, in addition to being an excellent professional.
GABY RODRIGUES
I had the honour of working with Jonathan on a commercial project and was enchanted by his good taste and talent!
Jonathan is a very competent person, easy to deal with and understanding, in addition to being an excellent professional.
GABY RODRIGUES
I had the absolute pleasure of working with Jonathan on the design for my restaurant, and I must say, he exceeded all expectations. Jonathan's creativity and attention to detail are truly exceptional.
From the very beginning, Jonathan showed a deep understanding of the ambiance I wanted to create for my restaurant. He listened carefully to my vision and then brought it to life in a way that left me absolutely delighted. His designs were not only visually stunning but also incredibly practical, ensuring that the space would be both aesthetically pleasing and functional.
Jonathan's ability to blend contemporary elements with a touch of traditional charm is truly remarkable. The colours, textures, and overall layout he proposed perfectly captured the essence of my restaurant, creating an inviting and cosy atmosphere that my customers have been raving about.
What truly sets Jonathan apart is his dedication to excellence. He went above and beyond to ensure every detail was perfect, and his commitment to delivering top-notch results was evident throughout the entire project. His professionalism, prompt communication, and ability to meet deadlines were greatly appreciated.
Thanks to Jonathan's outstanding work, my restaurant has received numerous compliments and has become a true standout in our area. I couldn't be happier with the results, and I have no hesitation in recommending Jonathan to anyone in need of a talented designer. He is a true gem in the industry, and I am incredibly grateful for the transformation he brought to my restaurant. I look forward to working with him on future projects, and I am confident that he will continue to excel in his field.
ADAM CAAN
CHIPSY, HATCH END
I had the absolute pleasure of working with Jonathan on the design for my restaurant, and I must say, he exceeded all expectations. Jonathan's creativity and attention to detail are truly exceptional.
From the very beginning, Jonathan showed a deep understanding of the ambiance I wanted to create for my restaurant. He listened carefully to my vision and then brought it to life in a way that left me absolutely delighted. His designs were not only visually stunning but also incredibly practical, ensuring that the space would be both aesthetically pleasing and functional.
Jonathan's ability to blend contemporary elements with a touch of traditional charm is truly remarkable. The colours, textures, and overall layout he proposed perfectly captured the essence of my restaurant, creating an inviting and cosy atmosphere that my customers have been raving about.
What truly sets Jonathan apart is his dedication to excellence. He went above and beyond to ensure every detail was perfect, and his commitment to delivering top-notch results was evident throughout the entire project. His professionalism, prompt communication, and ability to meet deadlines were greatly appreciated.
Thanks to Jonathan's outstanding work, my restaurant has received numerous compliments and has become a true standout in our area. I couldn't be happier with the results, and I have no hesitation in recommending Jonathan to anyone in need of a talented designer. He is a true gem in the industry, and I am incredibly grateful for the transformation he brought to my restaurant. I look forward to working with him on future projects, and I am confident that he will continue to excel in his field.
ADAM CAAN