Trowbridge, Cardiff

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Community/Electoral ward
Cardiff ward location - Trowbridge.png
Location of Trowbridge ward within Cardiff
Population16,194 (2011)[1]
OS grid referenceST230800
Principal area
Sovereign stateUnited Kingdom
Post townCARDIFF
Postcode districtCF3
Dialling code+44-29
PoliceSouth Wales
FireSouth Wales
UK Parliament
Senedd Cymru – Welsh Parliament
List of places

Trowbridge is a district, community and coterminous electoral ward on the eastern edge of the city of Cardiff, capital of Wales.

The community and electoral ward includes some or all of the areas of the St Mellons estate and Trowbridge, as well as part of the Wentlooge Levels between the mainline railway and the coast.[2] It is bounded by the village of Old St Mellons to the north; Marshfield (in Newport principal area) to the east; and Splott and Rumney to the west.


Trowbridge largely dates from the second half of the 20th century, when housing spread east from Rumney onto the farmland of the area.[3]

Until 1938, the area was part of the civil parish of Rumney, in the historic county of Monmouthshire.


Trowbridge is both an electoral ward, and a community of the City of Cardiff. There is no community council for the area. Trowbridge is in the parliamentary constituency of Cardiff South & Penarth and the Senedd Cymru constituency of the same name.

The Trowbridge electoral ward is represented by four councillors on Cardiff Council. At the Cardiff Council election on 4 May 2017 the ward elected three Labour Party councillors and one Liberal Democrat.[4] Prior to this Trowbridge elected Labour councillors, with the exception of 2004 when a Liberal Democrat won a seat.[5]


Trowbridge Primary School.

St John Lloyd primary school.

Places of interest[edit]

Waste incinerator proposal[edit]

In 2019, plans for a new £150m waste incinerator plant was proposed by Mor Hafren Bio Power, off Newlands Road in Wentloog, Trowbridge. The facility would burn up to 200,000 tonnes of waste each year, while also generating 15 Megawatts of electricity. It would be only 3 miles from the Viridor plant in Splott. A campaign group was set up by Trowbridge residents and anti-incinerator campaigners.[6]

A final decision on whether the Mor Hafren facility can proceed was expected in 2020.


  1. ^ "Ward population 2011". Retrieved 9 April 2015.
  2. ^ "Election Maps". Ordnance Survey. Retrieved 14 January 2017.
  3. ^ "The History of Cardiff's Suburbs - Trowbridge". Retrieved 20 April 2018.
  4. ^ "Election results for Trowbridge - Cardiff Council Elections 2017 - Thursday, 4th May, 2017". Cardiff Council. Retrieved 14 January 2018.
  5. ^ "Cardiff Council Election Results 1995-2012" (PDF). The Elections Centre. Retrieved 14 January 2018.
  6. ^ Wightwick, Abbie (27 September 2019). "The 24 hour incinerator planned for Cardiff that has got people incredibly worried". Wales Online. Retrieved 23 April 2020.

Coordinates: 51°30′49″N 3°06′40″W / 51.51366°N 3.11101°W / 51.51366; -3.11101