Act on Building Unit Ownership
建物の区分所有等に関する法律
Every term this law . Its definitions bind only this law — each entry says where the definition applies and links to the sentence that settles it. 102 terms: 14 with the Ministry of Justice's English, 88 in our translation, marked as such.
区分所有者
A person who holds unit ownership (区分所有権) — ownership of a separately usable part of a building.
区分所有権を有する者
区分所有者
A person who holds unit ownership (区分所有権) — ownership of a separately usable part of a building.
同法第二条第二項に規定する区分所有者
A part of a building that is the object of unit ownership (区分所有権): a structurally separate part usable on its own, such as a residence, shop or office.
区分所有権の目的たる建物の部分
共用部分
The parts of a building other than its exclusively-owned areas (専有部分), the building's fittings that do not belong to an exclusively-owned area, and annexed buildings that the bylaws (規約) have made common areas under Article 4(2).
専有部分以外の建物の部分、専有部分に属しない建物の附属物及び第四条第二項の規定により共用部分とされた附属の建物
The association of all the unit owners (Article 3) once it has become a corporation (法人) by a resolution of its meeting (集会), passed by at least three-quarters of the unit owners and of the votes present at a meeting attended by a majority of the unit owners holding a majority of the votes (or a higher proportion the rules (規約) set), and by registration at its principal office.
The land on which a building stands, together with land such as a garden or path that the bylaws (規約) make part of its grounds under Article 5(1).
建物が所在する土地及び第五条第一項の規定により建物の敷地とされた土地
A right in the grounds of the building (建物の敷地) that a person holds in order to own an exclusively-owned area (専有部分).
専有部分を所有するための建物の敷地に関する権利
Where several buildings stand in one housing complex (団地) and land or attached facilities (附属施設) there are co-owned by the owners of those buildings, those owners — for a building with exclusively-owned areas, its unit owners (区分所有者).
Where several buildings stand in one housing complex (団地) and land or attached facilities (附属施設) there are co-owned by the owners of those buildings, those owners — for a building with exclusively-owned areas, its unit owners (区分所有者).
第六十五条に規定する団地建物所有者
Several buildings standing within one housing complex (団地).
After a building with exclusively-owned areas has been destroyed (滅失), the people holding the co-ownership interests in its grounds, etc. (敷地共有持分等): the right to use the grounds that several people held, or co-ownership shares in its attached facilities (附属施設).
After a building with exclusively-owned areas has been destroyed (滅失), the people holding the co-ownership interests in its grounds, etc. (敷地共有持分等): the right to use the grounds that several people held, or co-ownership shares in its attached facilities (附属施設).
第七十二条に規定する敷地共有者等
After a building with exclusively-owned areas has been destroyed (滅失), the people holding the co-ownership interests in its grounds, etc. (敷地共有持分等): the right to use the grounds that several people held, or co-ownership shares in its attached facilities (附属施設).
第七十二条に規定する敷地共有者等
After a building with exclusively-owned areas has been destroyed (滅失), the people holding the co-ownership interests in its grounds, etc. (敷地共有持分等): the right to use the grounds that several people held, or co-ownership shares in its attached facilities (附属施設).
第七十二条に規定する敷地共有者等
Where land or attached facilities (附属施設) of a housing complex (団地) are co-owned by the owners of its buildings, at least one of which has exclusively-owned areas, and some or all of the buildings have been destroyed (滅失): the owners of buildings in the housing complex (団地建物所有者), the co-owners of the grounds, etc. (敷地共有者等), and those holding rights in the grounds or attached facilities of a destroyed building that had no exclusively-owned areas.
Where land or attached facilities (附属施設) of a housing complex (団地) are co-owned by the owners of its buildings, at least one of which has exclusively-owned areas, and some or all of the buildings have been destroyed (滅失): the owners of buildings in the housing complex (団地建物所有者), the co-owners of the grounds, etc. (敷地共有者等), and those holding rights in the grounds or attached facilities of a destroyed building that had no exclusively-owned areas.
第七十八条に規定する団地建物所有者等
Where land or attached facilities (附属施設) of a housing complex (団地) are co-owned by the owners of its buildings, at least one of which has exclusively-owned areas, and some or all of the buildings have been destroyed (滅失): the owners of buildings in the housing complex (団地建物所有者), the co-owners of the grounds, etc. (敷地共有者等), and those holding rights in the grounds or attached facilities of a destroyed building that had no exclusively-owned areas.
第七十八条に規定する団地建物所有者等
Where land or attached facilities (附属施設) of a housing complex (団地) are co-owned by the owners of its buildings, at least one of which has exclusively-owned areas, and some or all of the buildings have been destroyed (滅失): the owners of buildings in the housing complex (団地建物所有者), the co-owners of the grounds, etc. (敷地共有者等), and those holding rights in the grounds or attached facilities of a destroyed building that had no exclusively-owned areas.
第七十八条に規定する団地建物所有者等
A court order, made on the request of an interested person where the court finds it necessary, placing an exclusively-owned area (専有部分) whose unit owner cannot be identified or located — or, where it is co-owned, the share of such a co-owner — under management by an administrator (管理人) the court appoints.
The particular building of a housing complex (団地) that its owners seek approval to demolish and replace with a new building; in Articles 82 and 83, where other buildings of the complex have been destroyed (滅失), it is one that still stands.
The particular building of a housing complex (団地) that its owners seek approval to demolish and replace with a new building; in Articles 82 and 83, where other buildings of the complex have been destroyed (滅失), it is one that still stands.
The particular building of a housing complex (団地) that its owners seek approval to demolish and replace with a new building; in Articles 82 and 83, where other buildings of the complex have been destroyed (滅失), it is one that still stands.
次条第一項に規定する特定建物
The particular building of a housing complex (団地) that its owners seek approval to demolish and replace with a new building; in Articles 82 and 83, where other buildings of the complex have been destroyed (滅失), it is one that still stands.
次条第一項に規定する特定建物
区分所有権
Ownership of a structurally separate part of a building that can be used on its own as a residence, shop, office, warehouse or for another building use (Article 1), other than a part the bylaws (規約) have made a common area (共用部分).
前条に規定する建物の部分（第四条第二項の規定により共用部分とされたものを除く。）を目的とする所有権
The administrator (管理人) a court must appoint when it makes an order for management of an exclusively-owned area with an unknown owner (所有者不明専有部分管理命令), to manage the area or share the order covers.
第四項に規定する所有者不明専有部分管理人
A resolution of the meeting (集会), by at least four-fifths of the unit owners and of the votes (not counting unit owners without votes) (three-quarters where the building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes), to demolish the building and build a new one on its grounds, part of them, or land that includes all or part of them.
A meeting (集会) held by the owners of buildings in a housing complex, etc. (団地建物所有者等) — the owners and rights-holders of a housing complex (団地) some or all of whose buildings have been destroyed (滅失).
第八十条第一項に規定する団地建物所有者等集会
A meeting (集会) held by the owners of buildings in a housing complex, etc. (団地建物所有者等) — the owners and rights-holders of a housing complex (団地) some or all of whose buildings have been destroyed (滅失).
A meeting (集会) held by the owners of buildings in a housing complex, etc. (団地建物所有者等) — the owners and rights-holders of a housing complex (団地) some or all of whose buildings have been destroyed (滅失).
第八十条第一項に規定する団地建物所有者等集会
A meeting (集会) held by the owners of buildings in a housing complex, etc. (団地建物所有者等) — the owners and rights-holders of a housing complex (団地) some or all of whose buildings have been destroyed (滅失).
第八十条第一項に規定する団地建物所有者等集会
In Articles 76 and 77, a resolution, where a building with exclusively-owned areas has been destroyed (滅失) and its right to use the grounds was ownership or another right held by several people, to sell the land (including rights related to it) covered by the co-ownership interests in the grounds, etc. (敷地共有持分等), passed by at least four-fifths of the votes at the meeting of co-owners of the grounds, etc. (敷地共有者等集会).
A court order, made on the request of an interested person where the court finds it necessary, placing an exclusively-owned area (専有部分) under management by an administrator (管理人) the court appoints, because the unit owner's unsuitable management of it infringes, or threatens to infringe, another's rights or legally protected interests.
In Articles 81 and 83, a particular destroyed (滅失) building of a housing complex (団地) whose rebuilding on the co-owned land where it stood is put to a resolution for approval.
Once an administrator of an exclusively-owned area with an unknown owner (所有者不明専有部分管理人) is appointed, the property that only that administrator may manage and dispose of: the exclusively-owned area or share covered by the order, the movables, rights in common areas and attached facilities, and right to use the grounds that the order extends to, and property the administrator obtains by managing or disposing of them.
A meeting (集会) held by the co-owners of the grounds, etc. (敷地共有者等) of a destroyed (滅失) building that had exclusively-owned areas.
第七十四条第一項に規定する敷地共有者等集会
A meeting (集会) held by the co-owners of the grounds, etc. (敷地共有者等) of a destroyed (滅失) building that had exclusively-owned areas.
A meeting (集会) held by the co-owners of the grounds, etc. (敷地共有者等) of a destroyed (滅失) building that had exclusively-owned areas.
第七十四条第一項に規定する敷地共有者等集会
A meeting (集会) held by the co-owners of the grounds, etc. (敷地共有者等) of a destroyed (滅失) building that had exclusively-owned areas.
第七十四条第一項に規定する敷地共有者等集会
一部共用部分
A common area (共用部分) plainly meant for the shared use of only some of the unit owners (区分所有者).
A method using an electronic data processing system (電子情報処理組織) or other information and communications technology, of a kind specified by Ministry of Justice Order (法務省令).
電子情報処理組織を使用する方法その他の情報通信の技術を利用する方法であつて法務省令で定めるもの
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
After a building with exclusively-owned areas has been destroyed (滅失), the ownership or other right to its grounds that several people held as the right to use the grounds (敷地利用権), or the co-ownership shares several people held in its attached facilities (附属施設), including rights related to them.
第七十二条に規定する敷地共有持分等
In Article 69, a resolution approving that a specific building (特定建物) of a housing complex (団地) be demolished and replaced by a new building on the co-owned land where it stands or other co-owned land of the complex managed or used with it, passed by at least three-quarters of the votes present at the meeting (集会) of the owners of buildings in the housing complex who co-own that land, attended by holders of a majority of the votes or of a higher share the bylaws (規約) set.
In Article 82, the same kind of approval where some buildings of the housing complex (団地) have been destroyed (滅失): a resolution approving that a specific building (特定建物) still standing be demolished and replaced by a new building on co-owned land, passed by at least three-quarters of the votes present at the meeting of owners of buildings in a housing complex, etc. (団地建物所有者等集会), attended by holders of a majority of the votes or of a higher share the bylaws (規約) set.
This Act as amended by Article 1 of Act No. 51 of 1983.
A record made in electronic, magnetic or another form people cannot perceive directly, of a kind specified by Ministry of Justice Order (法務省令) as used for processing information by computer.
電子的方式、磁気的方式その他人の知覚によつては認識することができない方式で作られる記録であつて、電子計算機による情報処理の用に供されるものとして法務省令で定めるもの
The property that an administrator of a poorly managed exclusively-owned area (管理不全専有部分管理人) has authority to manage and dispose of: the exclusively-owned area covered by the order, the movables, rights in common areas and attached facilities, and right to use the grounds that the order extends to, and property the administrator obtains by managing or disposing of them.
当該他の建物
In Article 69(5) and Article 81(5), a building of the housing complex (団地) other than the one whose reconstruction or rebuilding is approved — in Article 81(5) including a destroyed (滅失) one — where that work would specially affect its own reconstruction or rebuilding.
Where a building with exclusively-owned areas has been destroyed (滅失) and its right to use the grounds was ownership or another right held by several people, a resolution of the meeting of co-owners of the grounds, etc. (敷地共有者等集会), by at least four-fifths of their votes, to build a building on its former grounds, part of them, or land that includes all or part of them.
In Article 81, a resolution approving that a particular destroyed (滅失) building of a housing complex (団地) be rebuilt on the co-owned land where it stood, or on other co-owned land of the complex managed or used with it, passed by at least three-quarters of the votes present at the meeting of owners of buildings in a housing complex, etc. (団地建物所有者等集会), attended by holders of a majority of the votes or of a higher share the bylaws (規約) set.
当該他の建物
In Article 69(5) and Article 81(5), a building of the housing complex (団地) other than the one whose reconstruction or rebuilding is approved — in Article 81(5) including a destroyed (滅失) one — where that work would specially affect its own reconstruction or rebuilding.
In Articles 26 and 47, insurance money under a non-life insurance contract taken out on the common areas under Article 18(6) (including as Article 21 applies it), together with damages and money to be returned for unjust enrichment arising in respect of the common areas and co-owned grounds or attached facilities (共用部分等).
占有者
A person other than a unit owner (区分所有者) who occupies an exclusively-owned area (専有部分).
The common areas (共用部分) of a building, together with its grounds and its attached facilities (附属施設) other than common areas where these are co-owned by the unit owners (Article 21).
所在等不明区分所有者
In Article 38-2, a unit owner (区分所有者) who cannot be identified or whose whereabouts cannot be found; once a court's ruling under that Article finds someone to be one, they have no vote at the meeting (集会).
In Article 62(4) and Article 75(2), the new building to be built under a resolution to reconstruct a building (建替え決議) or to rebuild a destroyed one (再建決議), whose design outline the resolution must set out.
In Article 64-6, a resolution of the meeting (集会) to sell the building and its grounds (including rights related to them), possible where the right to use the grounds is ownership or another right held by several people, and passed by at least four-fifths of the unit owners, of the votes and of the value of the shares in that right (not counting owners without votes) (three-quarters where the building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes).
The common areas (共用部分) of a building, together with its grounds and its attached facilities (附属施設) other than common areas where these are co-owned by the unit owners (Article 21).
In Article 70(4) and Article 84(3), the new buildings to be built under a resolution to reconstruct all the buildings of a housing complex (団地), whose design outline the resolution must set out.
The common areas (共用部分) of a building, together with its grounds and its attached facilities (附属施設) other than common areas where these are co-owned by the unit owners (Article 21).
In Article 62(4) and Article 75(2), the new building to be built under a resolution to reconstruct a building (建替え決議) or to rebuild a destroyed one (再建決議), whose design outline the resolution must set out.
The common areas (共用部分) of a building, together with its grounds and its attached facilities (附属施設) other than common areas where these are co-owned by the unit owners (Article 21).
In Article 70(4) and Article 84(3), the new buildings to be built under a resolution to reconstruct all the buildings of a housing complex (団地), whose design outline the resolution must set out.
In the supplementary provisions (附則) of Act No. 140 of 2002, the Act on Building Unit Ownership as it stood before Article 1 of that Act amended it.
In the supplementary provisions (附則) of Act No. 47 of 2025, the Act on Building Unit Ownership as it stood before Article 1 of that Act amended it.
一般区分所有者
In Article 38-2, the unit owners (区分所有者) other than one who cannot be identified or whose whereabouts cannot be found; on their request or the manager's (管理者), a court can rule that resolutions of the meeting (集会) may be made by these owners alone.
A court order, made on the request of an interested person where the court finds it necessary, placing a common area (共用部分) under management by an administrator (管理人) the court appoints, because the unit owners' unsuitable management of it infringes, or threatens to infringe, another's rights or legally protected interests.
In Article 61, the unit owners (including their successors) who voted for a resolution under Article 61(5) to restore common areas lost when part of the building was destroyed (滅失).
買取指定者
In Article 61, the person whom all those who voted for a resolution to restore the destroyed common areas (決議賛成者) designate, within two weeks of the resolution, to buy the building and the rights to its grounds, and who notifies the other unit owners in writing; those owners may then demand that purchase only from that person.
In the provisions Article 64-5(3) applies to a resolution to renew the building, changing the shape of the common areas to maintain or restore the usefulness of the building's main structural parts (including securing the usefulness it should normally have), with the resulting change to the shape, floor area or relative position of every exclusively-owned area.
第六十四条の五第一項に規定する建物の更新
In Articles 64-8 and 77, a resolution of the meeting (集会), by at least four-fifths of the unit owners and of the votes (not counting unit owners without votes) (three-quarters where the building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes), to demolish the building.
In the supplementary provisions (附則) of Act No. 51 of 1983, the date the Minister of Justice (法務大臣) designates for a building with existing exclusively-owned areas, earlier than the date set by Cabinet Order (政令), from which Articles 22 to 24 as amended by that Act apply to it.
The date Act No. 47 of 2025, the amending Act these supplementary provisions (附則) belong to, comes into effect.
In Article 17(4) and Article 18(4), the acts needed on an exclusively-owned area (専有部分) because of a change to the common areas decided under Article 17(1) — preserving it, or using or improving it without changing its nature — which a meeting (集会) may decide by resolution where the bylaws (規約) specially so provide.
In the provisions Article 66 applies to a housing complex (団地), the land or attached facilities (附属施設) in the complex that the owners of its buildings — for a building with exclusively-owned areas, its unit owners (区分所有者) — co-own (the case in Article 65).
In the provisions Article 79 applies to a housing complex (団地) at least one of whose buildings has exclusively-owned areas and some or all of whose buildings have been destroyed (滅失), the land or attached facilities (附属施設) in the complex that the owners of its buildings — for a building with exclusively-owned areas, its unit owners (区分所有者) — co-own (the case in Article 78).
In Article 84(1) and (2), the land on which the buildings of a housing complex (団地) stand or stood, and land that is part of their grounds under Article 5(1) or was so when they were destroyed (滅失).
団地内建物が所在し、又は所在していた土地及び第五条第一項の規定により団地内建物の敷地とされ、又は団地内建物が滅失した当時において団地内建物の敷地とされていた土地
In Article 85(1) and (2), as part of the phrase grounds of the buildings in a housing complex, etc. (団地内建物の敷地等): the land on which the buildings of a housing complex (団地), now all destroyed (滅失), stood, and land that was part of their grounds under Article 5(1) when they were destroyed.
団地内建物が所在していた土地及び団地内建物が滅失した当時において第五条第一項の規定により団地内建物の敷地とされていた土地
The Act as it stood before the amendment these supplementary provisions deal with.
In Article 6-2, the administrator (管理人) with an address or residence in Japan whom a unit owner who has, or will have, none in Japan appoints to handle the management of their exclusively-owned area and the common areas, with authority for the acts that Article lists, such as acts of preservation and voting at meetings (集会).
In Article 64-5, a resolution of the meeting (集会), by at least four-fifths of the unit owners and of the votes (not counting unit owners without votes) (three-quarters where the building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes), to renew the building: to change the shape of the common areas to maintain or restore the usefulness of its main structural parts, and with it the shape, floor area or relative position of every exclusively-owned area.
In Article 64-7, a resolution of the meeting (集会) to demolish the building and sell its grounds (including rights related to them), possible where the right to use the grounds is ownership or another right held by several people, and passed by at least four-fifths of the unit owners, of the votes and of the value of the shares in that right (not counting owners without votes) (three-quarters where the building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes).
In Article 70, a resolution to demolish all the buildings of a housing complex (団地) together and build new ones on their grounds, part of them, or land that includes all or part of them — possible where every building has exclusively-owned areas, their unit owners co-own the grounds and bylaws (規約) under Article 68 cover the buildings; it needs at least four-fifths of the unit owners and of the votes at the owners' meeting (集会) (three-quarters where every building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes), and fails if, for any one building, more than a third of its unit owners or of its votes oppose.
In Article 71, a resolution, where the conditions of Article 70(1) are met, to sell all the buildings of a housing complex (団地) and their grounds together; it needs at least four-fifths of the unit owners and of the votes at the meeting (集会) of the unit owners who co-own the grounds (three-quarters where every building meets one of the conditions in Article 62(2), such as falling short of the standards the Minister of Justice sets for safety against earthquakes), and fails if, for any one building, more than a third of its unit owners or of its votes oppose.
In Article 83, a resolution approving together the reconstruction of a specific building (特定建物) and the rebuilding of a specific destroyed building (特定滅失建物) of a housing complex (団地) whose land both are co-owned, passed by at least three-quarters of the votes present at the meeting of owners of buildings in a housing complex, etc. (団地建物所有者等集会), after the owners of both have agreed to put them to one such resolution.
当該特定建物等
In Article 83, the specific building (特定建物) and the specific destroyed building (特定滅失建物) whose reconstruction and rebuilding are put together to one resolution to approve them.
当該特定建物等
In Article 83, the specific building (特定建物) and the specific destroyed building (特定滅失建物) whose reconstruction and rebuilding are put together to one resolution to approve them.
同項に規定する当該特定建物等
In Article 84, a resolution, where all or some of the buildings of a housing complex (団地) meeting the conditions of Article 70(1) have been destroyed (滅失), to demolish all its buildings together and build new ones on their grounds, part of them, or land that includes all or part of them; it needs at least four-fifths of the owners and of the votes at the meeting of owners of buildings in a housing complex, etc. (団地建物所有者等集会), and fails if, for any one building, more than a third of its votes — or, for a building still standing, more than a third of its unit owners — are against.
In Article 85, a resolution, where every building of a housing complex (団地) meeting the conditions of Article 70(1) has been destroyed (滅失), to sell all of their former grounds (including rights related to them) together; it needs at least four-fifths of the owners and of the votes at the meeting of owners of buildings in a housing complex, etc. (団地建物所有者等集会), and fails if, for any one building, holders of more than a third of its votes oppose.
In the supplementary provisions (附則) of Act No. 51 of 1983, the exclusively-owned areas that existed when that Act came into effect, together with the rights to use the grounds (敷地利用権) attached to them, to which Articles 22 to 24 as amended by that Act apply only from a later date.
In the supplementary provisions (附則) of Act No. 47 of 2025, the Act on Building Unit Ownership as amended by Article 1 of that Act.
買受指定者
A person designated by agreement of all the unit owners who voted for a resolution to reconstruct (建替え決議) or answered that they would take part in the reconstruction, as one who may buy the unit ownership and rights to use the grounds of those who will not take part.
In Article 63(7) and (8) as Articles 64-6 and 71 apply them to a resolution to sell a building, or the buildings of a housing complex (団地), with the grounds, the transfer, under the contract of sale, of rights in the building and its grounds (including rights related to the grounds); it takes the place there of starting the demolition work.
In Article 63(7) and (8) as Articles 64-6 and 71 apply them to a resolution to sell a building, or the buildings of a housing complex (団地), with the grounds, the transfer, under the contract of sale, of rights in the building and its grounds (including rights related to the grounds); it takes the place there of starting the demolition work.
土地等の権利の移転
In Article 63(7) and (8) as Articles 76 and 85 apply them to a resolution to sell the grounds of a destroyed building, the transfer, under the contract of sale, of rights in the land (including rights related to it) covered by the co-ownership interests in the grounds, etc. (敷地共有持分等); it takes the place there of starting the demolition work.