Johanna Endres Castillo

Speaking of Interiors is a South West London-based interior design studio known for creating beautifully balanced, functional spaces with a strong sense of personality and purpose. Founded by Johanna Endres-Castillo in 2020, the studio offers a full range of residential and commercial interior design services - from space planning and scheme development to full project management - with a focus on bespoke, client-led solutions.

With a passion for both aesthetics and practicality, Johanna brings clarity, structure and creativity to every project. Whether redesigning a family home in Clapham, styling a contemporary apartment in Fulham, or rebranding a café in Streatham, Speaking of Interiors works closely with clients to craft interiors that feel authentic, cohesive and elevated.

The studio’s design approach is collaborative and considered, placing equal value on how a space looks and how it supports everyday life. With a warm, contemporary aesthetic and a strong eye for colour, texture and proportion, projects are characterised by their calm, layered feel - often blending existing pieces with new design elements to create a natural evolution of the client’s style.

Speaking of Interiors is proud to serve a diverse client base across South West, West and Central London, delivering interiors that are as practical as they are beautiful, and as personal as they are timeless.