Japan's rules for the rooms of places for children differ by the kind of place and by the children's age: some set a floor area per child, one depends on the number of classes, and one has no national figure at all. In this article your AI measured five models that open with a free account, one of each kind of place, each by its own rule. It used the same tool an AI calls over MCP (the floor area per person check of check_space). Every figure and picture below is its result.

1. Each kind of place's rule

PlaceThe roomsSet by
Licensed nurseryUnder two: a baby room of 1.65 m² per child, a crawling room of 3.3 m². From two: a nursery room or play room of 1.98 m² per childThe standard for child welfare facilities (in Japanese), Article 32
Small nursery, type AUnder two: a baby or crawling room of 3.3 m² per child; at two, 1.98 m²The standard for home-based and small childcare (in Japanese), Article 28
KindergartenThe building and the playground by the number of classes (three classes: a building of 420 m², a playground of 400 m²)The kindergarten standard (in Japanese), Article 8 and its tables
After-school clubThe club's room about 1.65 m² per child, in groups of about 40 or fewerThe after-school club standard (in Japanese), Articles 9 and 10
After-school day serviceNo national figure (a child development support centre's room is 2.47 m² per child; local ordinances and guides give 3 m² and 3.3 m²)The standard for day support services (in Japanese), Article 68

A type A small nursery is a licensed nursery for 6 to 19 children under three. An after-school day service is for school-age children with disabilities.

The floor a child, place by place
Floor area per child, by kind of place; the kindergarten's is set by its classes
  • Under two, two rules. A licensed nursery's baby room is 1.65 m² per child and its crawling room 3.3 m²; a type A small nursery requires 3.3 m² for both.
  • The kindergarten by its classes. The kindergarten standard sets no size for a single room: the building and the playground depend on the number of classes.
  • The day service by local guides. The national standard gives no figure; municipalities may set one by ordinance or guide.

2. The five models' rooms

The AI measured each model as it opens, by its own rule. The floor is the area drawn inside the walls.

PlaceModelRooms checkedResult
Licensed nurseryDay nursery for 80 childrenThe six rooms for babies to five-year-oldsAll six big enough as drawn; less the lockers', kitchen units' and counters' footprints all six are still enough, and every room but the two-year-olds' has exactly enough for its children
Small nursery, type ASmall nursery (type A)Room for under-twos (9), room for twos (10)The room for under-twos is 30.24 m² as drawn, room for 9; less its lockers 28.80 m², room for 8, short of its nine. The room for twos is room for 10 less its lockers too
KindergartenKindergarten (three classes)Building, playgroundA building of 432 m² (420 m² for three classes) and a playground of 400 m² (400 m²): both enough; four classes would need 520 m² and 480 m²
After-school clubSchool wingClassroom 4 (72.00 m²)Room for 43; a group is about 40 or fewer
After-school day serviceAfter-school day serviceThe support room (10 children, 31.50 m²)Room for 12 at 2.47 m², 10 at 3 m², 9 at 3.3 m² (short of ten)

How each kind was checked in full, and how the rooms that fall short were put right, is in its own article: the licensed nursery, the small nursery, the kindergarten, the after-school club, the after-school day service.

3. How to use this, and what it does not know

  • Floor areas are measured on the drawn areas. The areas are drawn inside the walls. Some municipalities leave fixed fittings such as lockers out of the floor they count, so the AI gives both the floor as drawn and the floor less the fittings' footprints; ask your municipality what to leave out.
  • Not checked here. Outdoor play space (3.3 m² per child from age two at a licensed nursery), kitchens, toilets and offices, staffing, and fire equipment (see each article).
  • The municipality's rules. A municipality may set rules or guides of its own, besides the national ones. Tell your AI the rules of the municipality you will file with.

Tools used

  • check_space: whether each room meets its rate (the floor area per person check, also with the fixed fittings left out)