LESA Bertie
Interior Designer
“Creative ideas are just the beginning - what matters most is turning them into something real.
Clear planning, attention to detail, and keeping momentum are what ensure a design isn’t just imagined, but fully and beautifully delivered.”
Lesa Bertie approaches interior design with clarity, focus, and a strong creative instinct. With a background in retail buying and merchandising, she’s spent years honing her ability to visualise spaces, manage complex details, and make confident, style-led decision. These skills now underpin her work as a designer.
Having renovated several homes of her own, Lesa understands how to balance ambition with practicality. She trained at the renowned KLC School of Design before transitioning fully into interiors, where her methodical yet imaginative approach helps clients bring order, purpose, and personality into every room.
“There’s something incredibly satisfying about reworking a space to give it meaning again and seeing the spark when a client realises what’s possible. It’s not about trends, it’s about making things work in a way that feels natural and right.”
Based in Streatham, Lesa works with clients across London and the Home Counties.
What clients say about LESA
INTERIOR DESIGN, SE LONDON
“Lesa Bertie is peerless! The transformation of my bedroom from sad to sanctuary has been a revelation- from one room to an entire home - Lesa is your go-to! She has the contacts, the diligence and the vision - I would recommend her in a heartbeat!!!”
INTERIOR DESIGN, CRYSTAL PALACE
“Lesa’s ability to transform spaces is truly remarkable. Working with her was a pleasure, and I couldn’t be happier with the results. Lesa’s design ideas for my dining room and bedrooms were absolutely fantastic, also placements of some existing furniture. I’m looking forward to working with her in the future, and feel confident to recommend her for interior design services.”
House Renovation, Wimbledon
“Thank you so much Lesa for all your hard work. Everyone who has seen the house says that it is fantastic and that the decor is incredible! Thank you again for all your help and input. It is very much appreciated.”
More About Lesa Bertie
Based in Streatham and working across London and the surrounding home counties, Lesa Bertie is a highly accomplished interior designer known for delivering calm, beautifully resolved homes through carefully managed renovation and design projects. Her work is defined by clarity of vision, thoughtful spatial planning and a deep understanding of how interiors can support wellbeing, comfort and everyday living.
Lesa specialises in full-service residential renovation, guiding clients from the earliest design thinking through to detailed implementation. Whether reimagining a family home, redesigning kitchens and bathrooms or coordinating complete interior transformations, she brings a steady, solutions-focused presence that ensures projects progress smoothly and confidently.
Background & Professional Journey
Originally trained at KLC School of Design, Lesa’s pathway into interiors was shaped by an earlier career in buying and merchandising across a range of high-street retail brands. This experience developed her instinct for proportion, colour, material quality and value, alongside the organisational discipline required to manage complex processes and multiple stakeholders.
Combined with hands-on experience renovating and refurbishing properties, this foundation led naturally into interior design. Today, Lesa applies both creative sensitivity and practical knowledge to projects that require careful coordination, clear decision-making and an understanding of the additional building and construction support required for a full renovation project as well as decoration.
Areas Lesa Covers
From her South West London base, Lesa works with clients throughout London, the home counties and internationally, supporting renovation and interior design projects of varying scale. She is particularly experienced in guiding homeowners through substantial refurbishment, helping them navigate the many creative and practical decisions required to transform a property with confidence.
Design Style & Approach
Lesa’s interiors balance calm elegance with real-world functionality. She approaches each project collaboratively, listening closely to how clients live and what they want their homes to feel like before shaping a design that brings those aspirations into focus.
Her strength lies in the seamless integration of layout, materials, lighting and detailing, ensuring that every element contributes to a cohesive whole. She is equally comfortable developing architectural bathroom designs, coordinating bespoke joinery, refining interior palettes or shaping the relationship between interior rooms and outdoor spaces so that a home feels connected and complete.
Clients value her composed, thoughtful manner and her ability to resolve challenges without drama, creating a design journey that feels reassuring as well as creative.
Renovation, Bathrooms & Full Implementation
A significant part of Lesa’s work centres on comprehensive renovation projects, where her ability to collaborate closely with contractors, specialist bathroom designers, joiners and builders becomes essential. She understands how to provide design ideas in a format that can be easily understood by contractors and translated into physical reality, ensuring that quality, budget and timeline remain aligned.
Her experience extends from detailed bathroom and kitchen redesign through to whole-home refurbishment and international commercial work, always guided by the same careful attention to sourcing, craftsmanship and finish. She is also skilled at blending interior and exterior environments, helping homes flow naturally into gardens, terraces or landscape settings.
Client Experience
Clients consistently describe Lesa as calm, patient, professional and exceptionally attentive to detail. They value her listening skills, her creative insight and her ability to guide complex decisions with confidence. Many speak of the transformation she achieves not only in the physical space, but in how enjoyable and manageable the renovation process becomes with her support.
This trust has led to long-term relationships, repeat collaborations and projects that evolve from single-room improvements into complete home redesigns.
Working With Lesa
Lesa is particularly suited to clients seeking a thoughtful, full-service interior designer in London. As part of the Decorbuddi team, she combines personal creative guidance with access to trusted contractors, specialist suppliers and experienced project support, ensuring a smooth path from concept to completion.
Get In Touch
If you are planning a home renovation, bathroom redesign or full interior transformation in London or the home counties, Lesa would be delighted to discuss your project. She offers flexible interior design support tailored to each client, always focused on creating homes that feel calm, functional and beautifully finished.