Interior design for a 100m2 3-bedroom apartment

Interior design for a 100m2 three-bedroom apartment is a brief many families care about: it is just enough space for a two-to-three-generation household while still keeping the home airy. The difficulty is that every function sits on a single floor plate — once three bedrooms are carved out, little area remains for the shared living zone, so the layout and style must be calculated carefully from the very start.

Choosing a style for a 100m2 apartment

With a flat plan and a three-bedroom requirement, a modern style is usually the most sensible choice because it prioritises comfort and pared-back detailing. A few foundational principles:

• Minimise decorative detail: keep lines clean and drop ornate patterns so the eye is not overwhelmed in a limited space.
• A light-toned base palette: grey, beige and off-white for walls and large furniture — creating a visual sense of extra width.
• Prioritise dual-function pieces: every furniture item should carry an extra storage role to free up floor area.

Living room, kitchen and dining: merge them into one block

To leave more area for the bedrooms, combine the living room, dining table and kitchen into one connected space. This layout saves on partitions and brings family members together during shared time.

• A built-in kitchen with plenty of cabinets: exploit the full wall height to increase storage volume without encroaching on circulation.
• A kitchen island doubling as a light dining table: it keeps the kitchen zone contained while acting as a soft boundary with the living room.
• A simple sofa and coffee table: choose cool tones and low profiles so the ceiling reads higher.

If you are weighing up doing it yourself versus hiring a turnkey service, see self-design or a turnkey interior service before deciding.

The bathroom and three bedrooms

A bathroom does not need to be large to feel polished: a dark stone floor paired with light wall cladding, plus a glass screen to keep things dry and visually enlarge the room. For the three bedrooms:

• Master bedroom: warm tones (soft grey, light brown), with bedding, curtains and rug coordinated to lift the sense of luxury.
• The other two rooms: tailored to their users (children or adults), prioritising multifunctional furniture and beds with integrated drawers.
• Floor-to-ceiling wardrobes: maximise the full height and hide belongings away so the rooms stay tidy.

For further space-planning ideas, read optimising a 2-bedroom apartment layout for storage arrangements.

A good drawing only counts when built correctly

Even a well-resolved 100m2 scheme on paper can drift from reality if construction does not control the electrical, plumbing, ceiling and kitchen-cabinet packages properly. Consolidating the work under one general contractor spares the owner the “every crew builds its own way” problem while protecting schedule and budget.

AIC works to a single-point design-build model, with over 10 years in the trade (since 2016 under the predecessor Nhan Viet; AIC was founded in 2019) and two in-house factories (1,200 m² and 600 m²) that standardise joinery and kitchen cabinets. From a floor plan, AIC can produce a BOQ estimate within roughly 4 working hours so the owner can size the budget; projects are handed over with a warranty of up to 24 months. See our apartment interior design and build service.

Frequently asked questions

How many bedrooms suit a 100m2 apartment?

Three bedrooms is the common choice for a two-to-three-generation family, but if you prioritise a generous living area you can build two bedrooms plus one multipurpose room (a study doubling as an extended living space). The room count should follow the actual number of occupants and your needs over the next 5–10 years.

Which style works best for a 100m2 apartment?

Modern and minimalist styles usually fit best because they prioritise function and visually enlarge the space with light palettes and compact furniture. Detail-heavy styles such as neoclassical are still possible but need higher ceilings and more open area to avoid feeling cluttered.

How long does a full 100m2 apartment fit-out take?

The timeline depends on the finishing scope and the amount of new joinery. For a complete 100m2 fit-out, the design stage typically takes a few weeks, plus construction and furniture production time; lock the detailed schedule into the contract before work starts.