Duplex (building)

Duplex (building)

The term duplex can be used to describe several different dwelling unit configurations:

A duplex house is defined as a dwelling having apartments with separate entrances for two families. This includes two-story houses having a complete apartment on each floor and also side-by-side apartments on a single lot that share a common wall.[1] By contrast, a building comprising two attached units on two distinct properties is typically considered semi-detached or twin homes but may also be referred to as a duplex.

The term "duplex" can also be extended to three-unit and four-unit buildings, or they can be referred to with specific terms such as triplex and fourplex or quadplex/quadruplex,[2] with triple decker being a common name for the three-story variant in the Boston area[citation needed]. Because of the flexibility of the term, the line between an apartment building and a duplex is somewhat blurred, with apartment buildings tending to be bigger, while duplexes are usually the size of a normal house.

Especially in dense areas like Manhattan, a duplex apartment refers to a maisonette, a single dwelling unit spread over two floors connected by an indoor staircase. Similarly, a triplex apartment refers to an apartment spread out over three floors. These properties can be quite expensive, and include the most expensive property in Manhattan as of 2006 (according to Forbes Magazine), a triplex atop The Pierre Hotel.[3]

Urban planning

In urban planning, the term duplex is used more specifically. Major Canadian cities sometimes use the term duplex to refer specifically to a building with one unit built above another. Edmonton defines Duplex Housing as "development consisting of a building containing only two Dwellings, with one Dwelling placed over the other in whole or in part with individual and separate access to each Dwelling".[4] Calgary defines Duplex Dwelling as "a building which contains two Dwelling Units, one located above the other, with each having a separate entrance".[5] Toronto proposes in their new Zoning Bylaw to define Duplex Building as a building that has only two dwelling units, and one dwelling unit is entirely or partially on top of the other dwelling unit.[6] Halifax defines Duplex Dwelling as "the whole of a dwelling that is divided horizontally into two separate dwelling units, each of which has an independent entrance".[7]

Other major cities use the term duplex, but do not specify the physical relationship between the two dwelling units. Dallas defines the term duplex as "two dwelling units located on a lot".[8] Philadelphia defines a duplex dwelling as "a dwelling occupied as the home or residence of two (2) families, under one (1) roof, each family occupying a single unit".[9]

Other major cities do not use the term duplex in their zoning or Land Use bylaws. San Francisco and Vancouver use the term Two-family dwelling.[10][11] Winnipeg uses the term Dwelling, two-family.[12] The definitions of these terms do not specify the physical relationship between the two dwelling units in the building. Detroit and Chicago use the term Two-flat and defines it as a "residential building that contains 2 dwelling units located on a single lot. The dwelling units must share a common wall or common floor/ceiling."[13]

Where cities do not define the relationship of the dwelling units to one another, units may be built one on top of the other, or one beside the other. The latter arrangement is more specifically referred to as a semi-detached building.

See also

References


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  • Duplex — Contents 1 See also Duplex commonly means double or twofold. It may also refer to: Duplex (building), a two unit apartment building or condominium Duplex, a common electrical receptacle with two NEMA type 5 plugs Duplex locomotive, a type of… …   Wikipedia

  • duplex — du plex, n. [See {Duplex}, a.] 1. something which is duplex; used mostly in reference to a living unit, such as an apartment, in a building having two similar living units. [PJC] 2. (Biology, Genetics) a double stranded region in a nucleic acid… …   The Collaborative International Dictionary of English

  • Duplex do Pipas — (Лиссабон,Португалия) Категория отеля: 3 звездочный отель Адрес: Сантуш, 1200 743 Ли …   Каталог отелей

  • duplex — ► NOUN 1) N. Amer. a residential building divided into two apartments. 2) N. Amer. & Austral. a semi detached house. ► ADJECTIVE ▪ having two parts. ORIGIN Latin, from duplicare double …   English terms dictionary

  • duplex apartment — noun an apartment having rooms on two floors that are connected by a staircase • Syn: ↑duplex • Hypernyms: ↑apartment, ↑flat * * * noun : a suite in an apartment house that includes rooms on two floors * * * an apartment with rooms on two… …   Useful english dictionary

  • building — I (New American Roget s College Thesaurus) Architectural structure Nouns 1. edifice, structure, construction. See form, production, architecture. 2. house, home, abode. 3. (types of buildings) A frame, prefab, Quonset hut, ranch house, saltbox,… …   English dictionary for students

  • duplex — Synonyms and related words: Janus like, ambidextrous, apartment house, bifacial, bifold, biform, bifurcated, bilateral, binary, binate, biparous, bipartisan, bipartite, bivalent, condominium, conduplicate, cooperative apartment house, dichotomous …   Moby Thesaurus

  • duplex — [ dju:plɛks] noun 1》 N. Amer. a residential building divided into two apartments.     ↘a flat on two floors.     ↘chiefly N. Amer. & Austral. a semi detached house. 2》 Biochemistry a double stranded polynucleotide molecule. adjective 1》 having… …   English new terms dictionary

  • duplex — /ˈdjuplɛks / (say dyoohpleks) adjective 1. twofold; double. 2. Machinery including two identical working parts in a single framework, though one could operate alone. 3. denoting or relating to a system of telegraphic or radio communication for… …  

  • duplex — du·plex || duːpleks/ djuː adj. double; having two floors; bidirectional, in two directions (Computers) n. building having rooms on two floors or stories; house with dwelling accommodations for two separate families …   English contemporary dictionary

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