All hotels in Merthyr Tydfil, Wales, United Kingdom
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Llwyn Onn Guest House, Merthyr Tydfil

This property has received its official star rating from Visit Wales.
Llwyn OnnCwmtaf, Merthyr TydfilWalesCF48 2HTUnited Kingdom, 800-491-6126
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Excellent4.0 / 5
Tasty breakfast
Rather comfortable
Food could be better
63See all 63 reviews
From 141 reviewsTripAdvisor Traveller Rating
  • Cardiff (CWL-Cardiff Intl.) 53-min drive; 37.3 miles/60 km
  • Swansea (SWS) 58-min drive; 38.1 miles/61.3 km
  • Free self parking

Llwyn Onn Guest House, Merthyr Tydfil

Hotel Info: 866-539-8117

from $60
  • En-suite- Single Occ
  • Double Room
  • Superior Twin Room, 2 Single Beds, Ensuite
  • Executive Double Room, Ensuite
  • Standard Single Room, Ensuite, Lake View
  • Executive Twin Room, 2 Single Beds, Ensuite
  • Triple Room, Ensuite

At a glance

Key facts

Hotel size

  • This hotel has 11 rooms
  • This hotel is arranged over 2 floors


  • Check-in time 5 PM-9 PM
  • Check-out time is 10:30 AM

Required at check in

  • Credit card or cash deposit required

  • Government-issued photo ID required

Travelling with others


  • No cribs (infant beds)


  • Pets not allowed



  • Free self parking

Other information

  • Smoke-free property

In the hotel

Food and drink
  • Breakfast (surcharge)
  • Restaurant
  • Barbecue grills
Working away
  • Meeting rooms
  • Picnic area

In the room

Home comforts
  • Coffee/tea maker
Be entertained
  • Satellite TV channels
Stay connected
  • Desk
Food and drink
  • Refrigerator

Recent reviews

Excellent 4.0 /5 from 63 reviews

Llwyn Onn Guest House, Merthyr Tydfil
Outstanding5.0 / 5
fantastic breakfast/hospitality
Large rooms with cute decor. Modern bathroom had a towel warmer! Hot chocolate and cookies in the room to greet us. Very quiet location-- kind of like an old home converted into several hotel rooms at the entrance to Brecon Beacons National Park. Breakfast is a full Welsh hot meal with cold selections also-- very filling and tasty. Staff was always helpful and friendly.
1 night family trip
Llwyn Onn Guest House, Merthyr Tydfil
Good3.0 / 5
My boyfriend and I stayed here on a trip through the National Park. It was a comfortable stay with some things that other people mentioned already. The bathroom water pressure was lost in the shower if the hot water was past a certain point. At another point the cold water from the tap stopped working, but was working again when we returned from breakfast. There was some mold in the shower, but nothing too bad. Breakfast was delicious and served in a timely manner. The bed was comfy and the wi-fi worked in our room since we were above the common room, but they tell you it only works in the common area. It's got great views and a lovely patio. Check-in only opens from 4pm onwards, so don't plan to drop your bags and keep going.
1 night romance trip
Llwyn Onn Guest House, Merthyr Tydfil
Fair2.0 / 5
Had booked a triple room but got 2 singles. Thankfully used a free night for this stay so didn't cost too much.
1 night romance trip
Llwyn Onn Guest House, Merthyr Tydfil
Outstanding5.0 / 5
Good value for money
Excellent service, called to check when I would arrive, great breakfast just wish Lava Bread was available relaxing stay what more do you need
1 night trip
Llwyn Onn Guest House, Merthyr Tydfil
Excellent4.0 / 5
Andover Bill
one night stop over
1 night romance trip

See all reviews

Llwyn Onn Guest House, Merthyr Tydfil

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