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View over Lowertown from the west
Location of Lowertown in Ottawa
|• MPs||Mona Fortier|
|• MPPs||Nathalie Des Rosiers|
|• Councillors||Mathieu Fleury|
|Elevation||60 m (200 ft)|
|Canada 2011 Census|
|Time zone||UTC-5 (Eastern (EST))|
Lower Town (also spelled "Lowertown" (French: la Basse-Ville) is a neighbourhood in Rideau-Vanier Ward in central Ottawa, Ontario, Canada, to the east of downtown. It is the oldest part of the city. It is bounded by Rideau Street to the south, the Ottawa River to the west and north and the Rideau River to the east. It includes the commercial Byward Market area in the south-western part, and is predominantly residential in the north and east.
It was historically French Canadian and Irish (as opposed to English and Scottish Upper Town, a term no longer in use) and is to this day home to many Franco-Ontarian families, businesses and institutions.
- Lowertown Pool - a public in-ground swimming pool with rope & diving board. Sauna & change rooms on-site. Ample free parking available.
According to the City of Ottawa website, there are roughly 4180 native English-speakers in Lowertown, 3530 Francophones, and 2235 with other mother tongues. Lower Town is home to a wide variety of immigrants and visible minorities, of which there are 2495.
Lowertown's population is rather diverse. Its main stretch along Rideau Street is very bustling and includes many African, Asian, South Asian, Caribbean, and Lebanese businesses, a large grocery store, the Rideau Branch of the Ottawa Public Library, and an Orthodox Jewish synagogue.
Lower Town and the neighbouring Byward Market have notoriously been known for crime, according to a report conducted by students taking their masters for criminology at University Of Ottawa indicating the area has a higher rate of crime and disorder than other central neighbourhoods in the city.  The community has a high concentration of homeless shelters, low income housing and high rise student apartments which has created dynamic for certain organized and non-organized crime to breed.  Lower Town and Byward Market have been and are usually ranked among the top neighbourhoods for repeated calls for services and resources from the city. In 2019 Lower Town including the Byward Market had 35% of the city's homicides. 
As part of the Greber Plan for Ottawa, new parkways, roads and bridges were constructed in the post-war period as a plan for urban renewal and "improvement" of Ottawa. This period saw major upheaval in the area as dozens of city blocks and hundreds of historic homes were systematically demolished to make way for expanded roads and new development. However, while the redevelopment was done in Lower Town, neighbouring areas opposed the plans, leaving the current incomplete solution to traffic through the area, heavy truck traffic, and poor urban streetscape for Lowertown residents to cope with.
King Edward Avenue
Today, King Edward Avenue is a six lane main road running north–south through the centre of the neighbourhood. It is connected on its north to the MacDonald Cartier Bridge, a main connection with Gatineau, Quebec, which leads to heavy traffic travelling to and from Gatineau through the area. The traffic exits Lower Town either to the east along St. Patrick or to the south along Rideau and Nicholas to the 417 highway, as south of Rideau, King Edward is a four-lane (and further south, two-lane) road through the Sandy Hill residential neighbourhood with no heavy truck traffic allowed.
The street is so large and so busy that it exists as a major barrier between the east and west halves of Lowertown. Since it is the main truck route between Ottawa and Gatineau there are large numbers of tractor trailers travelling through the core of Ottawa daily, along with tens of thousands of commuters in cars. It is one of the highest accident sites in Ottawa.
The road from the bridge was intended to connect to a new Vanier Parkway to the north of the neighbourhood, across Green Island and Maple Island. This connector was never built because of political opposition, and instead St. Patrick Street east of King Edward was built into a major four-lane thoroughfare cutting through the neighbourhood. The end of the connector from the bridge instead connects to King Edward at a sharp turn where the connector would have continued directly to the east.
King Edward was itself rebuilt into a six-lane major thoroughfare from Sussex Drive to Rideau Street, and the plan was to continue the six-lane through Sandy Hill to connect to the Queensway (417) highway. This also was never built.
Rideau Street has had its share of major development and redevelopment spanning over three decades. Prior to the typical appearance of shopping malls, the characteristic sign of modern suburbanization commonly seen as North American cities increase in size and population, Rideau Street west of King Edward was a popular shopping area of Ottawa. For many years, Rideau Street was one of Ottawa's primary retail thoroughfares, containing department stores such as Freimans, Ogilvy's, Woolworth, Caplan's and Metropolitan. Although the local department stores are gone, Rideau Street still features The Bay department store, the Rideau Centre shopping mall, and the street is adjacent to shops of the Byward Market.
The Byward Market, to the north of Rideau Street has consistently thrived throughout ongoing development in surrounding areas. To the south, the Rideau Centre development, a four-level shopping centre, began construction in 1981 continuing through 1982 and upon completion, provided a shopping mall atmosphere upon its official opening on March 16, 1983, as retailers moved inside. As part of the construction, the section of Rideau Street between Sussex Drive & Dalhousie Street was turned into a major bus interchange, which would undergo many major changes in the decades to come, seeing the originally constructed enclosed bus shelters replaced for covered shelters in the 1990s.
Further development began once a 230,000 ft expansion of the Rideau Centre was undertaken by Cadillac Fairview on September 26, 2013. The transit shelters underwent another major change during this time, including their relocation and modernization, as construction of Rideau Station, one of 13 stops announced as part of O-Train Line 1, named Confederation Line, began in August 2013, as part of Ottawa's existing light-rail system built and operated by OC Transpo.  Rideau Street stretches throughout the traditional Lower Town district of Ottawa, of both commercial and residential areas which in the past was predominantly Francophone, but now has one of Ottawa's largest immigrant populations, notably including many Francophone Africans and Somalis. North of Rideau and west of King Edward is typically considered the commercial Byward Market area.
- Bytown.net article 'Evolution of an Ottawa Neighbourhood'
- Lowertown Community Association
- Lowertown history: Virtual Museum of Canada Exhibit
- "Lowertown Pool". www.ottawa.ca. City of Ottawa. Retrieved 20 April 2019.
- Population calculated by combining Census Tracts 5050055.00 and 5050056.00 with Dissemination Areas 35061789, 35060251, 35061790, 35061792, 35061794, 35061795, 35061796, 35061797, 35061798, 35061020, 35061788 and Census Block 3506134702
- "new report says crime rates in Lowertown are dramatically higher than in other areas of downtown". Ottawa. 13 October 2018.
- "Lowertown Militia take to social media to recruit innocent boys for a life of crime". ottawasun.
- "Ottawa Police launch neighbourhood resource team in ByWard Market/Lowertown area". Ottawa. 4 May 2020.
- https://ottawacitizen.com/news/local-news/murder-in-the-market-14-homicides-in-ottawa-three-in-citys-core-in-2019/. Missing or empty
- Newton, Michael (1979), Lower Town Ottawa, volume 1, 1826-1854, Ottawa, Ontario: National Capital Commission