Castle · near Bwlch · Powys

Blaenllynfi Castle

Blaenllynfi Castle is a scheduled monument. You will find it 400 m north of Bwlch. The site is kept up by Cadw.

Photo: Blaenllynfi Castle, Jeremy Bolwell (CC BY-SA 2.0)

Where

400 m

north of Bwlch

Run by

Cadw

a national heritage body

How well known

Top 15%

#1,210 of 8,556 places we list

Warmest months

Jun–Sep

highs of 18–21°C

In brief

Castle near Bwlch

Just outside Bwlch

Blaenllynfi Castle is 400 m north of Bwlch. Towns near it ↓

Cared for by Cadw

One of the places Cadw looks after; members usually get in free. About ↓

Scheduled monument

On the official list of protected heritage; Bwlch has 1 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

A month-by-month guide

If warmth matters, go June to September: Bwlch reaches 18–21°C.

Jan7° / 2°172 mm

Feb8° / 2°105 mm

Mar11° / 3°108 mm

Apr13° / 5°82 mm

May16° / 7°70 mm

Jun19° / 10°63 mm

Jul21° / 12°52 mm

Aug21° / 12°81 mm

Sep18° / 9°89 mm

Oct14° / 7°156 mm

Nov11° / 4°144 mm

Dec8° / 2°160 mm

Green months are the warmest. Typical afternoon highs and night lows in Bwlch, and rain in a month. Met Office HadUK-Grid 1991–2020 averages for Bwlch. Opening times change through the year: check before you go. Bwlch’s full climate →

About

Blaenllynfi Castle

It has articles in 5 Wikipedias. Add Tretower Castle, 4.3 km away, to a visit; it leads 22 places within 15 km.

Bwlch’s listed buildings and monuments →

Type: Castle
Run by: Cadw
Listed: Scheduled monument
Wikipedias: Covered in 5 languages
Town: 400 m north of Bwlch

Facts: Wikidata (CC0) and OpenStreetMap (© OpenStreetMap contributors).

Plan your visit

Know before you go

Entrance feesFreeNo entrance fee.

Hours and entry: OpenStreetMap contributors. They change through the year: check its site before you go.

The map

Blaenllynfi Castle and what surrounds it

The orange dot is Blaenllynfi Castle; the numbers are the places near it, as listed below.

Towns near it

Which towns are near Blaenllynfi Castle

The most populous of the 8 is Brecon, at 8,257. Start with its own town; the others follow by distance.

1 · 400 m south of it

Bwlch

345 people · 5 places to visit

2 · 2.6 km south of it

Llangynidr

1,038 people · 4 places to visit

3 · 4.4 km north of it

Llangors

423 people · 3 places to visit

4 · 8.5 km southeast of it

Llangattock

629 people · 4 places to visit

Compare the 8 towns

Town	Where Blaenllynfi Castle is	People	Places to visit
Bwlch	400 m south of it	345	5
Llangynidr	2.6 km south of it	1,038	4
Llangors	4.4 km north of it	423	3
Llangattock	8.5 km southeast of it	629	4
Crickhowell	8.6 km southeast of it	2,108	4
Talgarth	11 km north of it	1,252	4
Brecon	12 km northwest of it	8,257	7
Bronllys	12 km north of it	548	4

Make a day of it

More near Blaenllynfi Castle

Among the 22 within 15 km are 6 castles, a cathedral and a fort.

CastleTretower Castle4.3 km away 2

CathedralBrecon Cathedral12 km away 3

Castle · CadwTretower Court4.5 km away 4

Castle · CadwBronllys Castle12 km away 5

CastleCastell Dinas8 km away 6

FortCrug Hywel8.4 km away 7

CastleCrickhowell Castle8.6 km away 8

CastleBrecon Castle12 km away

Within 15 km, close and well known first. Numbers match the map.

Blaenllynfi Castle, answered

Where is Blaenllynfi Castle?

Blaenllynfi Castle is 400 m north of Bwlch, Powys.

What is Blaenllynfi Castle?

Scheduled monument in Wales.

Who runs Blaenllynfi Castle?

Cadw, so members usually get in free; check opening times before you go.

When is the best time to visit Blaenllynfi Castle?

June to September are the warmest months in Bwlch, with afternoon highs of 18–21°C (Met Office 1991–2020 averages).

Is Blaenllynfi Castle a listed building?

Yes: scheduled monument.

What else is there to see near Blaenllynfi Castle?

Within 15 km: Tretower Castle (4.3 km), Brecon Cathedral (12 km), Tretower Court (4.5 km) and Bronllys Castle (12 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 (9)

Blaenllynfi Castle: Jeremy Bolwell, CC BY-SA 2.0, Wikimedia Commons
Tretower Castle: Pete Chapman, CC BY-SA 2.0, Wikimedia Commons
Brecon Cathedral: David Merrett from Daventry, England, CC BY 2.0, Wikimedia Commons
Tretower Court: Philip Pankhurst, CC BY-SA 2.0, Wikimedia Commons
Bronllys Castle: Keith Salvesen, CC BY-SA 2.0, Wikimedia Commons
Castell Dinas: Jasper Fforde, CC BY-SA 3.0, Wikimedia Commons
Crug Hywel: WelshDave, CC BY-SA 4.0, Wikimedia Commons
Crickhowell Castle: Niki.L, CC BY-SA 4.0, Wikimedia Commons
Brecon Castle: Philip Pankhurst, 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.