KSR Architects & Interior Designers transform Marylebone penthouse into a home bursting with character and style

by Francesca

When a former client and close friend of the studio got in touch about redesigning his newly purchased apartment in Marylebone, KSR Architects & Interior Designers was delighted at the opportunity.

This was an appealing challenge. The penthouse apartment located in the heart of Marylebone had already been fitted out and fully furnished as the show home in a development of 23 units. In typical show home fashion, it was pleasant and contemporary with excellent ‘bones’ but did not reflect the client’s personality.

The brief for the designers was to create a luxurious yet comfortable interior weaving in new elements for a fresh and individual design.

Unlike previous projects with the homeowner, which had largely been blank canvases, this required a delicate understanding of how to enhance an existing shell. The formal and symmetrical furniture layout of the main living space was reconfigured to a spacious and modular design to suit the client’s specific needs as someone who enjoys entertaining. New openings were introduced to improve connectivity between the guest suite and informal living spaces, and the master suite was reworked to accommodate a much-desired steam shower.

Improvements needed to be executed thoughtfully, with bespoke joinery and statement furniture carefully designed to complement the client’s taste and impressive art collection. The resulting interiors have transformed the neutral backdrop into a true showstopper, with the character and taste of its owner at the heart of the scheme.

Soft furnishings strike a refined balance between the cool and contemporary, and the bold and African inspired.

Director of Interiors at KSR, Michelle Sweeney, said:

“It is always exciting to carry out a new project for an existing client, and particularly for someone who is such a great friend of the studio. With this project, we had the exciting challenge of adapting what many would consider to be a ‘completed’ design – a show home ready to move into – and injecting it with the vivacity of the homeowner. 

The existing layout needed some personalising to suit our client’s lifestyle as an avid entertainer and art collector. By reconfiguring the penthouse, we were able to achieve a sophisticated yet comfortable environment for our client to enjoy whilst both hosting and relaxing. We enjoyed the process of working closely with the client to design the bespoke joinery elements, along with selecting beautiful furniture and unique objects.”  


Photography by Taran Wilkhu

Key information

Scope of services: Interior Design

Typology: Penthouse apartment
Build size: GIA 356m2 plus 111m2 terrace
Build cost: £650,000
Levels: Single storey

Completion: 2021

Interior Design: KSR Architects & Interior Designers

Photography: Taran Wilkhu

Stylist: KSR Architects & Interior Designers and Laura Fulmine

Project Manager: BTP Group

Cost Consultant: BTP Group


Contractor: Hannah Contracts

Joiner: Hannah Contracts


Products & suppliers

Kitchens: Design Space London

Stonework: Mega Marble

Bar / Bookshelf: Hannah Contracts (designed by KSR)

The Tableau rug: The Rug Company / Kelly Wearstler in Gallery

Coffee Table in Living Room: Louise Liljencrantz

Daniels Seating System Lounge: Minotti

PROFANA FLOOR LAMP in Living Room: Matter Made

TEMPO-6 pendant light above Formal Dining table: Atelier De Troupe

Main dining chairs, kitchen dining chairs and tv lounge swivel chair: Poliform

Lounge room swivel chair and footstool: Flexform

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