Interior design for a 92 m² apartment with a layout transformation from a three-room to a four-room format, in the residential complex “Primorsky Kvartal,” Saint Petersburg. The design is contemporary and primarily focused on creating a comfortable living environment.

Task

A young family with a child approached us, dissatisfied with the standard layout of their three-room apartment in a new building. The clients’ main requests were:

• a spacious kitchen–dining–living area;
• separate master bedroom and children’s room;
• a study with the option to transform it into a second children’s bedroom;
• a generous walk-in storage/wardrobe;
• a modern and cozy interior.

Issues with the original layout

Our analysis showed that the main “loss point” of area was the excessively large, dark entryway (11.45 m²) with a long narrow corridor (3.82 m²) in the center of the apartment.
This developer’s solution:

• took valuable space away from the living areas;
• complicated or blocked circulation routes within the apartment;
• left no room for a third private room or a walk-in storage area.

Layout solution

We completely rethought the space, using the entryway and corridor as a resource to implement a new, optimized layout.

• Shared area — by partially integrating the entryway, corridor, living room, and one of the rooms, we created an open-plan kitchen–dining–living space (25.42 m²) with a kitchen niche located in the “wet zone” in full compliance with building regulations. This became the heart of the home for family gatherings and entertaining.
• Loggia (8.13 m²) divided into two compact workspaces — 4.24 m² and 3.76 m².
• Entryway — now compact (6.15 m²) with built-in storage and a direct, open connection to the living area.
• Master bedroom (14.55 m²) — with its own bathroom (bathtub + laundry zone), built-in wardrobe, and access to the loggia.
• Children’s room (13.75 m²) — located in the former kitchen area, equipped with built-in furniture and a study area.
• Study (11.99 m²) — designed for easy transformation into a second children’s bedroom in the future.
• Walk-in storage/wardrobe (4.8 m²) — solving the storage needs.
• Guest bathroom (3.42 m²) — conveniently placed near the entryway.

Interior design

The interior combines contemporary minimalism with elements of eco-style and Scandinavian design.

Palette — a calm scheme of grays, beiges, and whites, complemented by rich warm wood tones.

Materials — natural textures, clean lines, and wall-aligned furniture and panels for a seamless, cohesive look.

Lighting — a thoughtful, multi-layered system:

• track lighting for flexible directional illumination;
• recessed spotlights for general lighting;
• concealed LED strips to highlight architectural features and create soft ambient light.

Result

We transformed a standard three-room apartment into a fully functional four-room “Euro-4” home with optimized ergonomics, a logical flow, and a sophisticated atmosphere that invites everyday living. This is a space where every square meter works — while remaining airy, comfortable, and modern.

Want your apartment to feel truly yours?

Get in touch — we’ll develop a layout and interior tailored to your lifestyle.