The Japanese 5S method organises a living space in five sequential steps — Sort, Set in order, Shine, Standardise and Sustain. Applied properly, even a modest apartment can stay tidy, airy and convenient without any demolition or rebuilding. It is a way of thinking about spatial organisation, not just a house-cleaning routine.

What 5S is and why it suits Vietnamese apartments

5S grew out of Japan’s minimalist, space-saving philosophy — a country where every square metre is accounted for. For the 50–90 m² apartments common in Vietnamese cities, the mindset is well worth borrowing: keep only what you need, place things deliberately, and maintain the habit.

  • Seiri (Sort): remove what you do not use.
  • Seiton (Set in order): give every item one sensible home.
  • Seiso (Shine): keep surfaces and spaces clean.
  • Seiketsu (Standardise): turn the routine into a habit.
  • Shitsuke (Sustain): maintain the discipline long term.

A tidy apartment organised by the Japanese 5S method

Step 1 — Sort (Seiri)

Start by splitting belongings into three groups: used often, used rarely, and no longer used. Keep only items you will certainly need at least a few times a year; sell or give away the rest. This step alone frees most of the “dead” volume inside wardrobes, shelves and under beds.

Step 2 — Set in order (Seiton)

After sorting, divide what remains into high-use and low-use groups, then position each by frequency of use and the family’s daily habits. Some practical rules:

  • Daily items within arm’s reach; seasonal items up high or into storage.
  • With small children: keep their things at child height.
  • Favour vertical storage (tall shelving, built-in wardrobes, drawers) to keep the floor clear.

Vertical storage solutions that make an apartment feel more open

Step 3 — Shine (Seiso)

A beautiful design loses its value under dusty surfaces and scattered belongings. In 5S, cleanliness is not just cleaning — it is designing for cleanability: choose quick-wipe surface materials, minimise dust-catching details, and provide enough storage points that worktops stay empty.

Steps 4 & 5 — Standardise and Sustain (Seiketsu, Shitsuke)

The final two steps turn the first three into habit. Standardise means codifying the routine (everything back in its place each evening); Sustain means holding that discipline long enough for it to become the household’s natural rhythm. An organised home comes from a durable system, not one big clean-up.

An orderly apartment maintained by long-term 5S discipline

5S works best when the design supports it

5S is a habit, but habits are far easier to keep when the design has storage “pre-installed”: built-in wardrobes, drawer beds, integrated kitchens, multifunctional half-height partitions. If you are renovating, put storage needs on the drawing from day one rather than buying loose cabinets later. For layouts in the same spirit, see the minimalist interior style and Japandi — the blend of Japanese and Scandinavian design.

AIC works to a single-point design-build model for apartment interior design and build: over 10 years in the trade (since 2016 under the predecessor Nhân Việt; AIC was founded in 2019), with two in-house factories (1,200 m² and 600 m²) producing the built-in wardrobes, shelving and integrated storage directly. From a floor plan, AIC can produce a BOQ estimate within roughly 4 working hours; projects are handed over with a warranty of up to 24 months.

Frequently asked questions

What are the steps of the Japanese 5S method?

Five steps in order: Sort (Seiri) — remove the excess; Set in order (Seiton) — position things sensibly; Shine (Seiso) — keep it clean; Standardise (Seiketsu) — codify the habit; Sustain (Shitsuke) — maintain the discipline.

Can a small apartment apply 5S?

It is the ideal candidate. Small apartments benefit most from Sort and Set in order — removing excess, storing vertically and building in wardrobes creates a noticeably more open feel without adding a single square metre.

How is 5S different from ordinary tidying?

Tidying is a one-off act; 5S is a system with clear steps and maintenance mechanisms (Standardise, Sustain) that keep the space orderly for the long term, instead of relapsing into clutter within weeks.