Llancaiach-fawr
Llancaiach-fawr is a manor house. You will find it inside Trelewis’ built-up area. On the official register, it is a Grade I listed building.
Castle in Trelewis
Inside Trelewis
Llancaiach-fawr is inside Trelewis’ built-up area, with 1 more place to visit within 5 km. Towns near it ↓
Grade I listed building
On the official list of protected heritage; Trelewis has 2 listed buildings in all, on its History page. About ↓
Written from OpenStreetMap, Wikidata, the ONS built-up areas and Met Office 1991–2020 averages.
When to go
In Trelewis the warm season is June to September, with highs of 17–20°C.
Llancaiach-fawr
It has articles in 4 Wikipedias. A short trip away is Caerphilly Castle, 10 km off, the first of 27 within 15 km.
- Type
- Castle
- Listed
- Grade I listed building
- Wikipedias
- Covered in 4 languages
- Town
- in Trelewis
Map of Llancaiach-fawr and nearby
Llancaiach-fawr is in orange, with the places near it numbered as below.
© OpenStreetMap contributors · The dashed line is Trelewis’ built-up area. · ONS built-up area 2022
Towns near Llancaiach-fawr
Ystrad Mynach is the biggest of the 8 bases nearby (11,856 people). All of these towns include it on their pages.
- 1Trelewis
- 2Nelson
- 3Gelligaer
- 4Treharris
- 5Ystrad Mynach
- 6Pen-pedair-heol
- 7Abercynon
- 8Tir-y-berth and Glan-y-nant
Trelewis
Nelson
Gelligaer
Treharris
Compare the 8 towns
| Town | Where Llancaiach-fawr is | People | Places to visit |
|---|---|---|---|
| Trelewis | It’s in town | 2,022 | 2 |
| Nelson | 500 m south of it | 4,235 | 2 |
| Gelligaer | 700 m east of it | 1,436 | 2 |
| Treharris | 900 m west of it | 5,042 | 2 |
| Ystrad Mynach | 2.1 km east of it | 11,856 | 2 |
| Pen-pedair-heol | 2.5 km east of it | 3,787 | 3 |
| Abercynon | 2.5 km west of it | 6,376 | 5 |
| Tir-y-berth and Glan-y-nant | 3.5 km east of it | 1,411 | 3 |
Combine it with these
Our list has 27 more within 15 km, among them 8 castles.
Castle · CadwCastell Coch14 km away3
CastleRuperra Castle15 km away4
CastleMorgraig Castle13 km away5
CastleMorlais Castle14 km away6CastleCastleCastell Meredydd14 km away7
CastleLlantrisant Castle15 km away8
CastleCraig Ruperra Motte15 km awayWithin 15 km, close and well known first. Numbers match the map.
Llancaiach-fawr: common questions
Where is Llancaiach-fawr?
Llancaiach-fawr is in Trelewis, Mid Glamorgan, inside the town’s built-up area.
What is Llancaiach-fawr?
Manor house in Gelligaer, Caerphilly County Borough, Wales.
When is the best time to visit Llancaiach-fawr?
June to September are the warmest months in Trelewis, with afternoon highs of 17–20°C (Met Office 1991–2020 averages).
Is Llancaiach-fawr a listed building?
Yes: Grade I listed building.
What else is there to see near Llancaiach-fawr?
Within 15 km: Caerphilly Castle (10 km), Castell Coch (14 km), Ruperra Castle (15 km) and Morgraig Castle (13 km).
Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.
Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).
Photo credits (7)
- Llancaiach-fawr: Rose Cottage, Public domain, Wikimedia Commons
- Castell Coch: Hchc2009, CC BY-SA 4.0, Wikimedia Commons
- Ruperra Castle: Andrew King, CC BY-SA 2.0, Wikimedia Commons
- Morgraig Castle: John Lord, CC BY-SA 2.0, Wikimedia Commons
- Morlais Castle: Gibbinskaren, CC BY-SA 4.0, Wikimedia Commons
- Llantrisant Castle: FruitMonkey, CC BY-SA 3.0, Wikimedia Commons
- Craig Ruperra Motte: Jeremy Bolwell, CC BY-SA 2.0, Wikimedia Commons
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.