Japan Address System: How to Read a Japanese Address

How a Japanese address is built, from prefecture to door

Western addresses start small and grow: number, street, city, country. Japanese addresses do the exact opposite. They start with the prefecture and narrow down, step by step, until they reach a single building. Nothing in the middle names a street, because the system does not use streets as its unit.

Here is the address of the Tokyo Metropolitan Government Building, split into its levels:

Level	Japanese	Romaji	In the example	What it tells you
Prefecture	都道府県	to-do-fu-ken	Tokyo-to	One of the 47 prefectures
Municipality	市-ku町村	shi-ku-cho-son	Shinjuku-ku	City, ward, town or village
District name	町名	chomei	Nishi-Shinjuku	The named neighbourhood
District number	丁目	chome	2-chome	A numbered slice of that neighbourhood
Block number	番	ban	8-ban	One city block inside the chome
Building number	号	go	1-go	The building on that block

Written in full it is Tokyo-to Shinjuku-ku Nishi-Shinjuku 2-chome 8-ban 1-go, and in everyday use the last three levels collapse into 2-8-1. That compressed form is what you will see on almost every property listing, so reading those three numbers correctly is most of the work.

The four suffixes you cannot ignore

The ending of a place name carries real information. -ken (県) marks a prefecture, but Tokyo is -to (都), Osaka and Kyoto are -fu (府), and Hokkaido is -do (道). One level down, -shi (市, city) and -ku (-ku, ward) tell you that you are in an urbanised municipality, while -machi or -cho (町, town) and -mura or -son (村, village) tell you the opposite. When you browse our catalogue of Japanese houses for sale, that single syllable already separates a city plot from a rural one.

Why Japanese streets have no names

The reason is historical and legal at once. Japanese cities grew as a mosaic of named districts rather than a grid of named roads, and when the country modernised its address system it kept that logic instead of replacing it.

The rule sits in the jukyo hyoji ni kansuru horitsu (住居表示に関する法律, Act on the Indication of Residential Address), law number 119 of 1962. Its article 2 offers municipalities exactly two methods:

• The block method, gaiku hoshiki (街-ku方式): the district is cut into blocks by permanent features such as roads, railways or rivers, each block gets a number, and each building on it gets a number.
• The street method, doro hoshiki (道路方式): buildings are numbered along a named road, the way most Western countries do it.

Japan adopted the block method almost everywhere. The street method exists in the text of the law but stayed marginal in practice, which is why a Japanese address can be perfectly precise without ever naming the road you will actually drive on.

What that changes when you look for a house

Building numbers run around the perimeter of the block, usually clockwise from one corner, with the municipality placing reference points at regular intervals. Two consequences follow, and both surprise foreign buyers:

• Numbers are ordered around a block, not along a road. Number 5 and number 6 can face away from each other on opposite sides of the same block.
• Buildings put up later slot into the existing scheme, so numbers are not always continuous, and several buildings can legitimately share one go number.

The two cities that do it their own way

Kyoto keeps its pre modern system on top of the official one: addresses name the crossing of two streets, then say whether you go up, down, east or west from it with agaru (上ル, north), sagaru (下ル, south), higashi iru (東入ル, east) and nishi iru (西入ル, west). Anyone buying property in Kyoto or browsing machiya for sale will meet these words long before they meet a block number. Sapporo uses a pure grid instead, counting blocks north, south, east and west from one origin point, so an address like Kita 3 jo Nishi 2 chome is already a set of coordinates.

Reading the three numbers: chome, ban and go

Almost every listing you will read compresses the address into three numbers separated by hyphens. Taking them apart is simple once you know which is which.

Element	Japanese	Official term in the law	Means	In 2-8-1
chome	丁目	District subdivision	A numbered part of the named district	2
ban	番	gaiku fugo (block symbol)	The block itself	8
go	号	jukyo bango (residential number)	The building on the block	1

You will also meet banchi (番地), which looks like ban but is not the same thing at all: it belongs to the older land register system covered further down, and it is the single most common source of confusion for foreign buyers.

Apartments and building names

Flats add one more level after the building. A full address often reads 2-8-1 Sakura Heights 305, where the building name comes after the numbers and the room number closes the line. Building names are used constantly in daily life, are rarely translated, and are not legally part of the address, so a delivery can arrive with the name alone missing and still reach you. Our glossary of Japanese real estate vocabulary covers the words that show up around them.

Rural addresses: gun, oaza, aza and the akiya trap

The 1962 law applies to shigaichi (市街地), built up areas. Outside them, and that means most of the countryside where vacant houses are cheap, many municipalities never introduced the residential address system at all. Rural addresses therefore look different, and shorter.

Element	Japanese	What it is	Why it matters to a buyer
gun	郡	A rural district grouping towns and villages	Its presence means you are outside any city: check transport, schools and shops
oaza	大字	A large traditional hamlet name	Often replaces the district name entirely
aza or koaza	字 / 小字	A smaller subdivision inside it	Very local, sometimes unknown to mapping services
banchi	番地	The land parcel number	This is a cadastral number, not a residential address

A typical rural address reads Nagano-ken Kitaazumi-gun Hakuba-mura Oaza Hokujo 1234-5. There is no chome, no ban and no go in it: the final number is the parcel. This is the normal form for most of the kominka farmhouses and for the majority of listings in our houses under 50,000 dollars selection, and it is exactly the case where a map search is least reliable.

Chiban and jukyo hyoji: every property has two addresses

This is the part that almost no general guide explains, and the part that matters most when you actually buy. A Japanese property carries two different identifiers, issued by two different administrations, and they frequently do not match.

	Chiban (地番)	Jukyo hyoji (住居表示)
What it identifies	A parcel of land	An entrance to a building
Issued by	The Legal Affairs Bureau, homukyoku (hōmukyoku)	The municipal office
Used for	The land register, the sale contract, taxes, the survey plan	Post, deliveries, utilities, everyday life
Written as	1234-5, sometimes with banchi	2-8-1, with chome, ban and go
Exists everywhere?	Yes, on every parcel in Japan	Only where the municipality introduced it

Why the difference costs money

You cannot pull a property register extract with a postal address. The toki jiko shomeisho (tōki jikō shōmeisho), the certificate that tells you who owns the land, whether a mortgage sits on it and what its recorded area is, is filed by chiban. Ask for it with the residential address and the counter will simply not find the parcel. The certificate itself is inexpensive, 600 yen (about 4 dollars) over the counter under the fee decree, and less when ordered online, so there is no reason to skip it. Our article on the Japanese land register walks through the document line by line.

The second trap is subtler. One postal address can cover several parcels, and one parcel can carry several buildings. A house advertised at a single address may sit on two or three chiban, one of which belongs to somebody else, typically the access lane. That is discovered by reading the kozu (公図, cadastral map) next to the register, not by looking at the listing.

Postal codes and locating an address on a map

Every Japanese address carries a seven digit postal code, written after the mark 〒 in the form 160-0023. The first three digits cover a wide area, the last four narrow it down, and the level they reach is not the same everywhere: in a city the code usually identifies the district and often the chome, while in the countryside it may cover an entire village.

Three tools, in the order that works

1. Japan Post code search: paste the address or the code and you get the official spelling of every level, in kanji and in romaji. This is the reference for how the address should be written.
2. The GSI map published by the Geospatial Information Authority of Japan: the official cartography, with cadastral and hazard layers that no consumer map offers.
3. A consumer map, last rather than first. It handles urban addresses well, and it is unreliable on rural ones.

Why the pin is sometimes wrong

When a geocoder cannot resolve an aza or a parcel number, it does not fail: it silently falls back to the centre of the municipality. The pin looks confident and can be several kilometres from the house. We measure this on our own catalogue, which is why every position we publish is verified against the official reverse geocoder and removed rather than shown when it cannot be confirmed. If you are checking a listing yourself, the honest test is simple: if the pin sits exactly on the town hall or in the middle of a village, it has not been resolved. Cross check with the cadastral map before you form any opinion on location, and read our guide to natural hazards and Japanese property before you trust a location you have not verified.

What a Japanese address tells a buyer

Read properly, an address is a first survey of the property, free and instant. Four things fall out of it before you even open a map.

• Urban or rural status. A gun in the address means no city administration, so you should check the nearest station, the school situation and winter road maintenance. A ku means the opposite.
• The age of the neighbourhood. A district that still uses oaza and aza has never been redrawn by the residential address system, which usually means an older settlement pattern and narrow private lanes.
• Price level. Within one city, prices move by district and by chome. Two addresses one number apart can sit in two different price brackets, which is why our price map and yield simulator works at that level of detail.
• Hazard exposure. Flood, landslide and liquefaction maps are published per location, so the address is what you feed into them. Names containing water elements such as sawa (沢, marsh or stream) or ike (池, pond) are worth a second look on the hazard layer.

This is also why the full address is the one piece of data we keep behind the member wall on every listing: it is the key that unlocks the register, the hazard maps and the real comparables. The rest of a listing, including how to decode its floor plan and its surface areas, is covered in our guide to reading a Japanese property listing.

Worked example and the mistakes that cost money

Take a vacant house advertised at 3,800,000 yen (about 24,400 dollars) in Wakayama, with the address Wakayama-ken Kainan-shi Shimotsu-cho Kami 123-4.

Reading it

• Wakayama-ken: the prefecture, on the Kii peninsula south of Osaka.
• Kainan-shi: a city, so urban administration, even though the house itself may be rural.
• Shimotsu-cho Kami: the former town of Shimotsu, absorbed into the city, then the hamlet name.
• 123-4: no chome, no go, so this is a chiban, a parcel number, not a residential address.

That last line is the whole point. Before any offer, this address is used to order the register extract by parcel, 600 yen (about 4 dollars), and the cadastral map alongside it. Total purchase costs in Japan stay at or below 6 percent of the price, so on this house you budget up to about 228,000 yen (roughly 1,460 dollars) of acquisition tax, registration, stamp duty and agency fee, and a few hundred yen of documents is nothing against that. Properties at this level are what you will find across our Wakayama listings.

The five mistakes to avoid

1. Treating a parcel number as a postal address. It will not geocode, the post office may not deliver to it, and utilities will ask for the residential address instead.
2. Reversing the order badly. Romanised addresses are often flipped for foreign readers, so the same address circulates in two directions. Always identify the prefecture first, then rebuild the chain, rather than trusting the order you were given.
3. Trusting a map pin alone. A pin on a village centre means the address was not resolved, not that the house is in the centre.
4. Assuming one address equals one parcel. Check the cadastral map for the access lane, which is frequently owned by a neighbour or by nobody in a usable way.
5. Ignoring the building name. For a flat, the room number without the building name is not deliverable, and the building name is rarely on the register.

None of this requires Japanese to be done properly, but all of it requires somebody to actually pull and read the documents. That verification is part of what our end to end purchase support does, and the full sequence of a purchase is set out step by step in our guide to buying a house in Japan.

In short: an address you can now read

A Japanese address is a funnel, not a line. It narrows from prefecture to municipality, to district, to chome, to block, to building, and it never names the road because the system was built around blocks. In the countryside it stops earlier and ends on a parcel number instead, which is the normal form for vacant houses.

The one distinction worth remembering above all others is the difference between the chiban that identifies the land in the register and the jukyo hyoji that identifies the door for the postman. Contracts, taxes and ownership follow the first, daily life follows the second, and confusing them is what turns a cheap house into an expensive surprise. With that in hand you can read any listing in our akiya catalogue and know exactly what you are looking at, and our guide to buying an akiya in Japan takes it from there.

Frequently asked questions

Does Japan have street names?

Almost never for addressing purposes. Roads have names in everyday speech, but the address system numbers blocks rather than streets. The 1962 law allows a street based method, yet Japanese municipalities adopted the block method almost everywhere. Kyoto is the notable exception, where addresses are given from street crossings.

How do you read a Japanese address in English?

Identify the prefecture first, which ends in -ken, -to, -fu or -do, then work down through municipality, district, and the numbers. Romanised addresses are often reversed for foreign readers, so rebuild the chain from the prefecture rather than trusting the order in which it is written.

What does chome mean in a Japanese address?

Chome is a numbered subdivision of a named district. In 2-8-1, the 2 is the chome, the 8 is the block and the 1 is the building on that block. Chome are typically a few hundred metres across and are a meaningful unit for prices.

What is the difference between chiban and jukyo hyoji?

Chiban is the land parcel number kept by the Legal Affairs Bureau and used for the register, the contract and taxes. Jukyo hyoji is the residential address assigned by the municipality and used for post and deliveries. The two often differ for the same house, and only the chiban lets you order the register extract.

Why can maps not find some Japanese addresses?

Rural addresses use hamlet names and parcel numbers that mapping services do not always hold. When a geocoder cannot resolve one, it falls back to the centre of the municipality instead of returning an error, so the pin looks confident while being kilometres off.

What does the mark before a Japanese postal code mean?

The symbol 〒 is the Japan Post mark and simply indicates that a postal code follows. Codes have seven digits written as three, a hyphen, then four. In cities a code usually identifies the district and often the chome, while in rural areas one code can cover a whole village.

Do I need a Japanese address to buy property in Japan?

No. A foreign buyer with no residence in Japan can buy freehold land and buildings, and registration is possible from abroad with an affidavit in place of a residence certificate. Owning property does not grant any visa or right of residence.

How many digits does a Japanese postal code have?

Seven, written in the form 123-4567. The current seven digit format has been in use since 1998, replacing shorter codes, and Japan Post publishes a free lookup that returns the official spelling of every level of the address.