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About Us

Welcome to Jonathan Sethna Interiors, where design meets a genuine commitment to creating exceptional spaces. At our core, we are more than just designers – 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. 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 interior design. Our team is dedicated to understanding your unique story and translating it into captivating design concepts. 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 spaces; we create experiences that resonate on a deeply personal level. With us, 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.

Services Provided

3D Rendering, Accessible Design, Basement Design, Bathroom Design, Bedroom Design, Bespoke Bathroom Vanities, Bespoke Bookcases, Bespoke Cabinets, Bespoke Fitted Furniture, Bespoke Furniture, Bespoke Home Bars, Bespoke Kitchen Cabinets, Bespoke Kitchen Pantries, Bespoke Media Units, Bespoke Rugs, Bespoke Shelving, Bespoke Walk-in Wardrobes, Boot Room Design, Complete Kitchen Renovation, Conservatory Design & Installation, Decluttering, Design Consultation, Dining Room Design, Downsizing, Drafting, Eco Homes, Entrance Design, Feng Shui Decorating, Floor Plans, Furniture Selection, Garage Design, Garage Storage, Home Cinema Design, Home Staging, House Plans, Interior Architecture, Interior Design, Interior Photography, Interior Styling, Kids' Room Design, Kitchen Design, Lighting Design, Living Room Design, Made to Measure Blinds, Nursery Design, Pantry Design, Playroom Design, Project Management, Shower Room Design, Space Planning

Areas Served

Henfield, Sussex, Surrey, London, Hampshire, Kent, Hove, Brighton, Chichester, West Sussex, East Sussex, Central London, Kensington and Chelsea, Mayfair, West End, Knightsbridge


Bachelors Degree in Interior Architecture


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12 Projects

Design ideas for a medium sized modern home in Sussex.

Wycombe Square

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Business Details

Business Name

Jonathan Sethna Interiors

Phone Number

01273 980598


Henfield, West Sussex BN5 9FQ
United Kingdom

Typical Job Cost

£1,500 - £20,000

I work very closely with my clients to ensure their expectations are met, within 'realistic' budget constraints. All of my clients and their projects are given the utmost attention regardless of the size of the job.



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15 Ideabooks

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Contact Jonathan Sethna Interiors
United Kingdom
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