Place:Nant y Glo and Blaina Urban District, Monmouthshire, Wales

Nant y Glo and Blaina Urban District was formed as an urban district in the northwest part of Monmouthshire, Wales in 1894. It ceased to exist in 1974 when Monmouthshire was abolished. The area became part of Gwent, Wales from 1974 until 1996, and since 1996 has been in the principal area and unitary authority of Blaenau Gwent.

When Urban Districts were first introduced in England and Wales in 1894 they were usually named after the local municipality (generally a civil parish) and covered the same area. When the historic counties were abolished in 1974 the local municipalities continued to exist, the description "urban district" disappeared.

WeRelate allows a single box for all titles or description types of a municipality. In the case of Urban Districts this does not really work. Once a municipality has been transferred to a Preserved County or a Unitary Authority with a different name, the name of the municipality usually remains the same, but the description "urban district" no longer applies.

There is really very little detail for family historians to be found in urban district records unless land transactions are being dealt with. Most historical records for all parts of a county are now held in a central repository.