Business Details
22 Years
experience
Award-Winning Interior Design Services in London
Established in 2004, Mia Karlsson Interior Design began as a one-woman operation driven by a passion for Scandinavian-inspired design. Our journey has evolved into a team of skilled interior designers, architects, and creatives based in London's Highgate Village. With over 300 completed projects and 60+ years of combined industry experience, we specialise in creating bespoke residential and commercial spaces that balance beauty with functionality. Our approach merges Swedish design principles of simplicity and practicality with global influences to deliver unique solutions tailored to each client's needs. As members of the British Institute of Interior Design, we uphold rigorous ethical standards and professional integrity in every project. Our process prioritises collaboration, from initial concept to final styling, ensuring seamless execution and client satisfaction.We pride ourselves on understanding not just aesthetic preferences but also the practical requirements that make spaces truly livable. Our portfolio spans award-winning renovations, contemporary new builds, and commercial interiors, reflecting our adaptability and creative expertise. Client testimonials highlight our ability to transform challenging spaces into cohesive, inspiring environments that exceed expectations. With a focus on transparency, we maintain open communication throughout every project phase, from budgeting to handover. Our commitment to excellence has earned recognition in leading design publications and industry awards, cementing our reputation as trusted leaders in interior design.
Services
Residential Interior Design
Commercial Interior Design
Full-Service Design
Consultancy
Refurbishment
Renovation
Details
- Year established: 2004
Highlights and features
- We have completed over 300 residential and commercial projects since 2004
- Our team brings 60+ years combined industry experience to every project
- We specialise in creating bespoke designs that solve spatial challenges
- We maintain full transparency throughout the design and construction process
- Our ethical approach is certified by membership in the British Institute of Interior Design
Associations and certifications
- British Institute of Interior Design
What people say
Delighted with transformation
Award-winning designs
Collaborative approach
Creative solutions
Exceptional attention to detail
Services
Residential Interior Design
We create tailored living spaces that balance aesthetic appeal with practical functionality. Our expertise spans complete home transformations, period property renovations, and contemporary new builds. By understanding each client's lifestyle needs, we develop schemes that maximise space efficiency while maintaining visual harmony. Our process ensures seamless integration of architectural elements, bespoke joinery, and curated finishes to create homes that feel both luxurious and lived-in.
Commercial Interior Design
We design inspiring commercial environments that enhance productivity and brand identity. From concept development to final styling, our approach considers workflow optimisation, spatial planning, and material selection. Recent projects include a spa-like fertility clinic and creative office spaces that foster collaboration. Our team ensures compliance with commercial regulations while maintaining the same design excellence applied to residential projects.
Full-Service Design
Our comprehensive service covers every project phase from initial brief to final handover. This includes spatial planning, material selection, joinery design, and procurement management. Clients benefit from our established network of trusted contractors and suppliers, ensuring consistent quality throughout. We provide regular progress updates and site visits to maintain project timelines and budgets, delivering fully realised spaces ready for immediate occupation.
Consultancy
We offer expert guidance for clients seeking specific design input without full-service engagement. This includes space planning consultations, material selection advice, and styling recommendations. Our hourly rate consultancy allows flexibility for homeowners and developers to access professional expertise at key decision-making stages, ensuring design coherence without long-term commitment.
Renovation
We specialise in transforming existing properties through strategic renovations that enhance functionality and value. Our approach combines structural improvements with interior design elements to create cohesive results. Whether modernising period features or reconfiguring layouts for contemporary living, we manage all aspects from planning permissions to final finishes, ensuring minimal disruption to property owners during the renovation process.
People
Mia Karlsson
Founder & CEO
Swedish-born founder with over 20 years' experience blending Scandinavian design principles with modern aesthetics. Recognised industry leader and Director at the British Institute of Interior Design.
Barbara Exposto
Design Director
Brings international design perspective with expertise in creating cohesive spatial solutions. Oversees project design direction while maintaining attention to detail across all client commissions.
Holly Matthews
Studio Director
Manages studio operations and project delivery timelines. Ensures seamless coordination between design teams and external contractors to maintain quality standards across concurrent projects.
Sue McDermid
Finance & Procurement Manager
Handles financial planning and material procurement processes. Ensures cost-effective sourcing of design elements while maintaining budgetary control for client projects.
Nabil Rubeiz
Creative Director
Leads innovative design concepts and visual storytelling elements. Brings architectural expertise to create spaces that balance artistic vision with practical functionality requirements.
Questions
What areas do you serve?
We primarily work in London and surrounding areas including Hampstead, Fitzrovia, Highgate, and Notting Hill, with occasional projects across the UK.
What types of projects do you handle?
We specialise in residential and commercial interior design, including full-service renovations, new builds, and space planning consultancy.
How does your design process work?
Our seven-stage process includes briefing, concept design, spatial coordination, technical drawings, construction management, final styling, and post-handover support.
Are you accredited by any professional bodies?
We are members of the British Institute of Interior Design, with our founder serving as a Director on their board.
Can you work with existing renovation projects?
Yes, we frequently take over ongoing projects to provide design direction and ensure successful completion to the highest standards.
Do you offer hourly design consultations?
Yes, we provide flexible consultancy services for clients needing specific design advice without full project management.
