
A legislative chamber or house is a
deliberative assembly within a
legislature which generally meets and votes separately from the legislature's other chambers. Legislatures are usually
unicameral, consisting of only one chamber, or
bicameral
Bicameralism is a type of legislature, one divided into two separate assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate and vote as a single gro ...
, consisting of two, but there are rare examples of
tricameral and
tetracameral legislatures. The
Socialist Federal Republic of Yugoslavia is the only country documented as having a
pentacameral (later
hexacameral) legislature.
Bicameralism

In a ''bicameral'' legislature, the two bodies are often referred to as an ''upper'' and a ''lower'' house, where the latter is often regarded as more particularly the representatives of the people. The lower house is almost always the originator of
legislation
Legislation is the process or result of enrolling, enacting, or promulgating laws by a legislature, parliament, or analogous governing body. Before an item of legislation becomes law it may be known as a bill, and may be broadly referred to as ...
, and the upper house is the body that offers the "second look" and decides whether to
veto or approve the
bill
Bill(s) may refer to:
Common meanings
* Banknote, paper cash (especially in the United States)
* Bill (law), a proposed law put before a legislature
* Invoice, commercial document issued by a seller to a buyer
* Bill, a bird or animal's beak
P ...
s. In the
United Kingdom legislation can be originated in either house, but the lower house can ultimately prevail if the two houses repeatedly disagree. In most countries the lower house also has sole or predominant control over matters to do with
finance
Finance is the study and discipline of money, currency and capital assets. It is related to, but not synonymous with economics, the study of production, distribution, and consumption of money, assets, goods and services (the discipline of fin ...
and
taxation.
A parliament's lower house is usually composed of at least 100
members, in countries with populations of over 3 million. The number of seats rarely exceeds 400, even in very large countries. Among the countries with large lower houses are France, where the
National Assembly
In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the rep ...
has 577 members, and Japan, where the
House of Representatives
House of Representatives is the name of legislative bodies in many countries and sub-national entitles. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often ca ...
has 475 members. The upper house of a parliament customarily has anywhere from 20 to 200 seats, but almost always significantly fewer than the lower house. In the United Kingdom however, the lower house (the
House of Commons
The House of Commons is the name for the elected lower house of the bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of parliament. ...
) has 650 members, but the upper house (the
House of Lords
The House of Lords, also known as the House of Peers, is the upper house of the Parliament of the United Kingdom. Membership is by appointment, heredity or official function. Like the House of Commons, it meets in the Palace of Westminster i ...
) currently has slightly more members than the lower house, and at one time (before the exclusion of most of the
hereditary peer
The hereditary peers form part of the peerage in the United Kingdom. As of September 2022, there are 807 hereditary peers: 29 dukes (including five royal dukes), 34 marquesses, 190 earls, 111 viscounts, and 443 barons (disregarding subsidi ...
s) had considerably more.
Merging of chambers
Until 1953, the
Rigsdag
Rigsdagen () was the name of the national legislature of Denmark from 1849 to 1953.
''Rigsdagen'' was Denmark's first parliament, and it was incorporated in the Constitution of 1849. It was a bicameral legislature, consisting of two houses, th ...
in
Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of Denmark
, established ...
was divided into two houses, the "
Folketing
The Folketing ( da, Folketinget, ; ), also known as the Parliament of Denmark or the Danish Parliament in English, is the unicameral national legislature ( parliament) of the Kingdom of Denmark—Denmark proper together with the Faroe Islands ...
" and "
Landsting", but has since become a
unicameral legislature. The same goes with
Sweden, and its "
Riksdag
The Riksdag (, ; also sv, riksdagen or ''Sveriges riksdag'' ) is the legislature and the supreme decision-making body of Sweden. Since 1971, the Riksdag has been a unicameral legislature with 349 members (), elected proportionally and ...
" until 1971. The
Norwegian parliament (''Storting'') was officially divided in two chambers 1814–2009, but functioned as a single chamber in practice, a situation called
Qualified unicameralism.
Floor and committee
The ''
floor'' is the name for the full assembly, and a ''
committee
A committee or commission is a body of one or more persons subordinate to a deliberative assembly. A committee is not itself considered to be a form of assembly. Usually, the assembly sends matters into a committee as a way to explore them more ...
'' is a small deliberative assembly that is usually subordinate to the floor. In the United Kingdom, either chamber may opt to take some business such as detailed consideration of a
Bill
Bill(s) may refer to:
Common meanings
* Banknote, paper cash (especially in the United States)
* Bill (law), a proposed law put before a legislature
* Invoice, commercial document issued by a seller to a buyer
* Bill, a bird or animal's beak
P ...
on the Floor of the House instead of in Committee.
Security
The building that houses the Chambers of a Parliament is usually equipped with an internal police and in some, the public force is not allowed access without authorisation.
[In Italy the judge could raise conflict of powers against the House asking the Constitutional Court - in accordance with decision no. 120/2014 - for access to the Palace to perform his duties: ]
References
See also
*
Delegated legislation
*
Inter-Parliamentary Union
*
Witenagemot
The Witan () was the king's council in Anglo-Saxon England from before the seventh century until the 11th century. It was composed of the leading magnates, both ecclesiastic and secular, and meetings of the council were sometimes called the Wi ...
{{DEFAULTSORT:Chambers Of Parliament
Legislatures
Elections