About Us

The Company

Masterpiece Interior Design

Behind Masterpiece Interior Design are interior designers Sari Selin-Perrin and Sirpa Leinonen.

With more than 20 years of experience, we provide professional interior design services for a wide range of residential and commercial projects, both in Finland and internationally.

Our design philosophy is rooted in a deep understanding of lifestyles, spatial functionality, and aesthetics. We design private homes, holiday residences, bespoke spaces, and distinguished residences where every interior tells a carefully curated story—subtle in expression, yet powerful in its impact.

Our extensive experience in restaurant design, reception areas, and other public environments is reflected in interiors that go beyond functionality. These are spaces that attract, engage, and leave a lasting impression.

We view public spaces as strategic assets. Through thoughtful design, we strengthen brand identity, support the daily needs of employees, and guide visitors toward a memorable and carefully considered spatial experience.

See our services

The designers

Why to choose us?

A Well-Managed Process

We believe that the design journey should be clear, inspiring, and reassuring for every client.

Comprehensive project management is an essential part of our service. We carefully oversee the style, timeline, and budget throughout the process, ensuring that every detail contributes to a cohesive result that truly reflects the client’s vision. Thanks to our extensive network of trusted partners and suppliers, even the most ambitious aspirations can be brought to life.

Uncompromising Quality

Our approach to both work and life is defined by responsibility, integrity, and a commitment to excellence. We do what we promise, take ownership of every project, and see each one through with determination and care.

Our goal is always to deliver more than expected—to take every project to the point where expectations are exceeded and the outcome becomes genuinely meaningful for the client.

International Experience

Our team brings extensive experience from international projects, adding cultural depth and sophistication to our work. Combined with the clarity, functionality, and timeless character of Nordic design, this results in interiors that are visually distinctive, elegant, and effortlessly balanced.

Authentic Connections

Nature is one of our greatest sources of inspiration. Its sense of calm, rhythm, and timeless beauty is reflected in our designs through authentic materials, thoughtful details, and spaces that exist in harmony with their surroundings. We move effortlessly between Scandinavian simplicity and international sophistication—from traditional log cabins in Finnish Lapland to luxurious loft residences in Monaco.

We are approachable by nature. Authenticity, honesty, and a subtle sense of humour make us trusted and enjoyable partners to work with. Flexible, solution-oriented, and genuinely present, we build every client relationship on a foundation of trust—the ability to listen, understand, and translate individual aspirations into meaningful spaces.

We are proud of our nearly 20 years of professional experience and the many successful projects we have completed. Above all, however, we are proud that our clients return to us time and again. To us, this is the strongest measure of success: a seamless collaboration, a timeless result, and a home or space that truly feels like its own.