Guide to Japanese apartment layout terms

Poste date: Sunday, August 25, 2024

When renting a property in Japan, floor plans often use English or English abbreviations in their descriptions due to limited space, so you may not know what these would mean. We here, would like to explain the meaning of descriptions in floor plans as well as the difference between Japan and Euro-American countries. We also have an English website that has posted the same explanation.

1. Difference in descriptions of floor plans between Japan and Euro-American countries

You may often see DK and LDK written on floor plans, but these expressions are unique to Japan, which were decided by the Ministry of Construction in 1951. Currently, the descriptions are defined by Real Estate Fair Trade Council of Federation as follows:

DK: Dining room with a Kitchen space
LDK: Living room, Dining room with a Kitchen space

Approximation of Minimum required space (Number of Tatami mats) (Lower limit)

Number of rooms (bedrooms) DK LDK
1 Room 4.5 tatami mats 8 tatami mats
2 Rooms or more 6 tatami mats or more 10 tatami mats or more

On the other hand, in Europe and the United States, they are expressed by using the number of bedrooms (as Bedroom(s)) instead of DK/LDK, and the number of bathrooms are also described in floor plans.

In addition, a set of a bathtub or shower and toilet is counted as 1 Bathroom, so if there is a toilet alone, it is described as 0.5 Bathroom or Powder Room. In the floor plans of our company, they will be written as 0.5 Bathroom.

Description in Japanese Description in English
One Room Studio
1LDK(1 Bedroom, 1 Toilet, 1 Bathtub) 1 Bedroom +1 Bathroom
1LDK(1 Bedroom, 2 Toilets, 1 Bathtub) 1 Bedroom +1.5 Bathrooms
2LDK (2 Bedrooms, 1 Toilet, 1 Bathtub) 2 Bedroom +1 Bathroom
2LDK(2 Bedroom, 3 Toilets, 2 Bathtubs) 2 Bedroom +2.5 Bathrooms

We, PLAZA HOMES, describe 1K (kitchen and bedroom only) and 1DK as Studio in English. We describe a tatami room as Tatami in English instead of Bedroom because it is a room unique to Japan.

Example) In the case of a unit with 1 western-style room and 1 tatami room:
Description in Japanese: 2LDK
Description in English: 1 Bedroom + 1 Tatami

 

2. What kind of room can be counted as a bedroom?

In floor plans, you may find a room description such as Storage Room or Service Room although it looks like a bedroom. Why is it called differently from a bedroom? This is because certain conditions must be met to be called a room, and there are two types of rooms, which are classified as “rooms” such as bedrooms and a kitchen space, and which are classified as "not rooms” such as an entrance, bathrooms, and toilets.

Room

A room that is continuously used for the purpose of living, working, entertainment, etc.

Requirements for Room

1. The size of the window for daylighting must be at least 1/7 of the floor area.

2. The size of the window for ventilation must be at least 1/20 of the floor area.

3. The height of the ceiling must be 2.1 m or more (if the ceiling is sloped, the average height is to be calculated)

A bedroom-like room that does not meet the above requirements is not a room that can be used as a living room, so it should be described as "Storage Room", but it is often described as "Service Room" or "Study (DEN)". There are no particular rules for difference in the name of each room, but it seems that it is often called "Service Room" for a larger room, "Study (DEN)" for a smaller room next to a living room, and "Storage Room" for much a smaller room.

* The "Service Room" and "DEN" may look like a bedroom on floor plans, but it may be inconvenient to use it as a normal room due to such factors as lack of an outlet or inability to install an air conditioner, so we recommend that you actually check such a room to see if it can be used as a bedroom.

3. Descriptions and Abbreviations of Floor Plans and their meanings

 In alphabetical order, we have compiled the descriptions that often appear on floor plans. Some descriptions do not appear in Japan floor plans, but they often appear on floor plans for foreigners.

 

Description in English or Abbreviations Description in Japanese Meaning
AC Air conditioner  
Alcove Alcove  
BR / Bedroom  Bedroom

 

CF / Cushion Floor Cushioned Floor

Rooms with polyvinyl chloride (PVC) flooring

CL / Closet Closet

 

Corridor Corridor

 

D / Dining Dining room

Dining room

DEN Den, study room

 

DN  

Downward staircase

DS / Duct Space Duct Space

Spaces for pipes of air conditioning, etc.

Ent / Entrance Entrance

 

EV / Elevator Elevator

 

Family room Family room

A private space for relaxing only with your family (without visitors and guests)

Floor Heating Floor heating

 

Foyer Entrance hall

Space in front of an entrance

Garage Parking space

 

J Number of tatami mats

 

K / Kitchen Kitchen space

 

L / Living Living room

 

Loft Loft space

Garret

Maid room Maid room

Room for maid

MB /Meter Box Meter Box

Places where gas, electricity, and water meters are installed

MBR / Master Bedroom Master Bedroom

The largest bedroom in a house or apartment

R / Refrigerator Space for a refrigerator

 

S / Study Study

 

SB / Shoes Box Shoe box

 

SCL / Shoes Closet Shoe closet

Approx.1 tatami mat space for storing shoes

SCI / Shoes in Closet Shoes in closet

Approx.1 tatami mat space for storing shoes

SK / Slop sink Slop sink

Large sink for washing shoes and gardening tools

SR / Service Room Service room

 

SR / Sun Room Sunroom

Grass-walled room

STR / Storage Room Storage room

Storage space

TR / Trunk room Storage room

 

UB / Unit Bath Modular bathroom

3-unit type modular bathroom:
A set of bathroom, toilet, and vanity

2-unit type modular bathroom:
A set of bathroom and vanity, without toilet

UP  

Upward staircase

Void open ceiling space

 

W / Washer Waterproofed floor

Place for washing machine

WC / Water Closet (Toilet/Lavatory/Restroom) Toilet

 

WTC / Walk through Closet Walk-through closet

A type of closet with 2 entrances/exits that you can walk through

WIC / Walk in Closet Walk-in closet

A closet sized enough for people to walk in

There are various notations other than these, but we have listed the ones that often appear on our floor plans. Please understand that our drawings are based on information provided by the owners and may differ from the descriptions shown here.

  • What are energy conservation standards and energy-saving housing?

    With the mandatory compliance of new energy efficiency standards for newly built homes starting in 2025, interest in energy-efficient housing is increasing. This article explains how energy efficiency in homes works, how energy efficiency standards are evaluated, and the different types of energy-efficient housing.
  • Putting Holes in Rented Apartment Walls in Japan

    You may be wondering if it is allowed to drill holes in the walls of rented properties in Japan, and if so, what size holes are permitted. You may or may not be responsible for the cost of restoration of the property depending on the size of the hole. Find out how to decorate your apartment's walls, what precautions you need to take before putting a hole, and what happens if you drill or make a large hole in the walls.
  • Expat Living in Tokyo: Navigating the Rental Housing Market

    Discover the essential tips for finding expat-friendly apartments in Tokyo. Learn about key features, popular neighborhoods, and the rental process in Japan's capital.
  • Furnished Apartments in Tokyo: A Guide to Short-Term Rentals

    Furnished apartments in Tokyo are becoming increasingly popular for short-term rentals. With the rise of flexible work styles and more foreign visitors, these fully furnished apartments cater to business travelers, digital nomads, and tourists. Many now offer English support, making them a convenient option for international guests. This guide covers their features and benefits.
  • How to rent out a residential property in Japan – Long-term vs Short-term vs Minpaku (Vacation Rentals)

    Here's what you need to know about renting out your property by the week, month, or as private lodging. There are multiple ways you can rent out and investment property in Japan. We have put together an easy to follow guide that points out the advantages and disadvantages of each leasing method.
  • Can a foreigner purchase property in Japan?

    Against the backdrop of a weakened yen, an increase in foreign tourists, and a rise in the number of foreign residents, there is a growing trend of real estate purchases in Japan by foreigners.

This 14-story rental apartment is located in a good living environment with lush greenery along Meguro River. It features a white color tiled bright and stylish exterior design and a monotone based cool-modern interior design of the shared spaces. The shared facilities include a theater room and hotel-like lounge space. It offers 1K-1LDK units desirable for single and DINKS residents, which come with white color based bright interior design together with a full range of functional room equipment such as a bathroom with dryer function and abundant storage spaces.

JPY 214,000/month

The property is in a convenient location to be close to Akasaka Sacas and Tokyo Midtown. It is a designer's apartment which brick building appears unique and original. The floor plan is 1LDK in high-grade specifications including a floor heating system and auto bathtub control system.

JPY 259,000 - 269,000/month

Mitsui Club and the Australian embassy are found in the neighborhood. It is a peaceful neighborhood with plenty of greenery. Keio University is also very nearby. It is a low-rise apartment with spacious floor plans ranging form 1 to 2LDK.

JPY 267,000 - 336,000/month

The property is only 3 min. walk away from Roppongi 1-chome Sta. It is in a great environment for living where many trees and plants are planted around the building according to the redevelopment plan. All units facing south get a great view including Tokyo Tower even from the lower floors as it stands on a hilltop.

JPY 190,000 - 369,000/month