Grade I listed buildings in Caerphilly County Borough
# Grade I listed buildings in Caerphilly County Borough

In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical, or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest". Listing was begun by a provision in the Town and Country Planning Act 1947. Once listed, strict limitations are imposed on the modifications allowed to a building's structure or fittings. In Wales, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Cadw.

## Buildings

| Name | Location Grid Ref. Geo-coordinates | Date Listed | Function | Notes | Reference Number | Image |
| - | - | - | - | - | - | - |
| Caerphilly Castle | Caerphilly ST1552687066 51°34′34″N 3°13′13″W﻿ / ﻿51.57613014522°N 3.2203975541742°W﻿ / 51.57613014522; -3.2203975541742﻿ (Caerphilly Castle) | 28 January 1963 | Castle | On a low-lying marshy site surrounded by hills to the N, S and W. Two streams, the Nant Gledyr and Nant yr Aber, cross the area and drain into the R Rhymney which flows towards the E. These streams were dammed to make the moat and great lakes. | 13539 | See more images |
| Llancaiach Fawr | Gelligaer ST1136096620 51°39′41″N 3°16′59″W﻿ / ﻿51.661370294848°N 3.2829191144656°W﻿ / 51.661370294848; -3.2829191144656﻿ (Llancaiach Fawr) | 25 October 1951 | House | Close to the W community boundary which follows Nant Caeach, a short distance NE of Nelson and reached by a short track from the main road. Fronts a re-created formal garden, the surrounding walls incorporating stone benches. | 13562 | See more images |
