15 listed buildings, 2 of them Grade I

Church of Saint MaryGrade I listedThe Town GateGrade II* listedKidwelly Bridge/Pont CydweliGrade II listedCapel SulGrade II listedKidwelly Town HallGrade II listed+7See all photos

Photos from Wikimedia Commons and Geograph, copied to our own server, each credited to its photographer with its licence; names open the building’s page or its official list entry.

c. 1800

c. 1824

c. 1840

c. 1851

c. 1890

1890

Public domain, from Wikimedia Commons, copied to our own server. Each credit opens the image’s page with its full description and history.

Cadw lists buildings of special architectural or historic interest in three grades: Grade I for buildings of exceptional interest, Grade II* for particularly important buildings of more than special interest, and Grade II for buildings of special interest. Listing protects the whole building, inside and out.

Every entry on Cadw’s register of listed buildings whose point lies inside the ONS 2022 built-up-area boundary. One list entry can cover a terrace or a group of buildings.

Cadw’s conservation areas via DataMapWales. Hectares are the part of each area inside the built-up area.

The first 3 entries were listed in 1963, 2 of the 2 Grade I buildings among them. 10 came in 1998. Only 0 have been added in the last 15 years.

3 scheduled monuments

Nationally important archaeological sites and monuments, protected by law; work on them needs consent from the Welsh Government (Cadw).

Castell Cydweli / Kidwelly CastleMedieval; Castle

MedievalKidwelly Medieval Town (Part of)Medieval; Town

Kidwelly Town Gate & DefencesMedieval; Gatehouse

Two measures, each ranked against every UK town of 1,000 or more, with protected heritage counting twice as much as the age of homes. Protected heritage counts each listed building by its grade (Grade I three points, II* two, II one), each scheduled monument and battlefield two, and each registered park or garden by its grade; it is ranked both per 10,000 residents and as a total, so a village with one fine church doesn’t outrank a historic city. The second measure is the share of homes built before 1919, from the Valuation Office Agency’s council tax records. History is a character grade: it describes the town and isn’t part of the overall grade.

29% of homes are Victorian or older, against 16% across England and Wales. The busiest period since was 1955–64, which added 13% of today’s homes.

Valuation Office Agency, council tax stock of properties by build period, 31 March 2025, for the neighbourhoods (LSOAs) that make up the town, split by where their residents live. Homes with no recorded build period (0 here) are left out; 1939–44 is not a period in the data.

Everyone born in Kidwelly → Birthplaces from Wikidata; portraits from Wikimedia Commons.

Old houses are part of Kidwelly’s character: 37% of its homes were built before 1919, against 15% in the typical UK town. All told, the list holds 15 listed buildings, 2 of them Grade I, including Kidwelly Castle. Only 41 of the 1,274 towns nearest its size have more Grade I buildings. A conservation area has protected part of it since 1971.

John Davies (1625), John Griffiths (1837) and Stephen Thomas (1865) were all born here before 1900. The big year was 1998, when 10 of the 15 went on the list. Beyond that, per resident it sits near the middle of UK towns; and it also has 3 scheduled monuments.