Katarzyna Zalewska · Interior Design
IDK Interiors
Modern contemporary interiors with a touch of luxurious industrial — for living and for business, across the UK and Europe.
Philosophy
Where raw architectural character meets the warmth of modern luxury.
Every space is a balance of light, material and proportion. We pair concrete, brass and warm wood with refined contemporary forms to create interiors that feel both grounded and elevated — residential and commercial alike.
Selected work
Projects
Five realisations from different regions — each with its own story, materials and timeline. Click a project to explore the full gallery.
Studio
Eight years shaping spaces across the UK and Europe.
Katarzyna Zalewska founded IDK Interiors in Northern Ireland with a simple belief: luxury lives in the integrity of materials and the quality of light. Her work bridges industrial heritage and contemporary comfort.
From private homes to commercial flagships, every project is led personally — from concept and spatial planning to material sourcing and final styling.
What we do
Services
Residential design
Bespoke interiors for homes and apartments — full concept, architecture and styling.
Commercial spaces
Offices, hospitality and retail that translate brand identity into physical experience.
Home staging - 3D visualisation
Curated palettes of textures, materials, lighting and furniture for refined results.
Get in touch
Let's start your project.
Tell us about your space and ambitions. We take on a limited number of projects each year across the UK and Europe.
Northern Ireland · United Kingdom & Europe