Interior Designers Surrey

Interior Design in Surrey



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

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.
– Robert Stewart

We worked closely with Jonathan to bring a clients project to life and was extremely impressed with his design flair, professionalism and project management capabilities. Would highly recommend Jonathan Sethna Interiors in the future.
– Joshua Delane

Jonathan has produced some amazing designs for us and has helped transform blocks of flats in the process. We and our clients have always been extremely happy with the end results. Highly recommended.
– Danny Weil

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Our Portfolio

Our Story


Jonathan Sethna Interiors specialises in creating timeless designs brought to life with fresh imaginative ideas. We offer a tailor-made service which will give your space a unique and customised distinction with unforgettable identity.

In his twenty-plus years in the industry, founder Jonathan has been involved in a number of prestigious projects such as the Dorchester Hotel Spa in Mayfair and Witanhurst House in Highgate – the largest privately-owned home in London, second only to Buckingham Palace.

Jonathan understands the difference an expertly considered space can make to the lives of those who use it. Now with a diverse portfolio of projects, our mission is to make luxury design accessible to everyone.

Honesty and Integrity are at the core of what we do and we pride ourselves on our down-to-earth approach to client relations. Whether you are an existing business or start-up company looking to stay one step ahead in a crowded market; or a private individual looking for beautiful interior solutions, Jonathan Sethna Interiors can work with you to transform your space with dramatic results.

Jonathan Sethna Interiors
Bora Bora chair
Jonathan Sethna Interiors



Jonathan Sethna Interiors are passionate about achieving fresh and innovative interiors with consideration for the exclusive requirements and challenges of each unique project.

Interior design should be an enjoyable and creative experience, so to further enable this, projects are broken down into key stages, offering you clarity about what to expect along the way.

For the majority of clients, we are appointed to carry out full interior design services. This includes concept development through to technical documentation and installation, however, we can offer as much or as little as you require.

Whatever your requirements Jonathan and his team will work closely with you to ensure a professional service of the highest quality.

One - Concept.

Strategic Definition: Initial Consultation , Communication Strategies & Estimate Fees.
Preparation and Brief: Project Programme, Site Survey & Brief Design Responsibilities Matrix.
Concept Design: Final Project Brief, Review Project Programme, Concept Development, Layout Development & Mood Boards.

Two – Design.

Developed Design: Design Development, Internal Architectural Space Planning, Furniture Layouts, General Location of Service Points, Sampling Finishes Specifications, Computer Generated Imagery, Joinery Package, Furniture Package & Lighting Package.
Technical Design: Internal Plans, Internal Elevations, Internal Sections, Electrical Plans, Lighting Plans, Product Specifications & Estimates from Suppliers.

Three – Build.

Construction: Issue Purchase Orders, On-Site Inspections Visits, Meetings During Build, Final Site Inspection Visits, Snagging & Final Styling.
Handover: Final Inspection Visits & Snagging Approved by Client.
Jonathan Sethna Interiors
Jonathan Sethna Interiors
Jonathan Sethna Interiors