Book on our site
Up to 10% cheaper
than Booking.com
Check rooms and rates
From105US$ /night
Check-in
16Mar2026Select date
Check-out
17Mar2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

Llwyn Onn, Merthyr Tydfil, United Kingdom, CF48 2HT
-
Near Joseph Parry's Ironworker's Cottage
Perfect
9.0
9.5
/10
4.2
4.7
/5

The 4-star Llwyn Onn Guest House Merthyr Tydfil offers 7 rooms with proximity to Taf Fawr, which is nearly a 5-minute walk from the property. Boasting horse riding tours, the inn is located around 6 km from the Redhouse arts centre.

Location

This Merthyr Tydfil hotel has a perfect location about 10 minutes by car from Cyfarthfa Park. The castellated mansion "Cyfarthfa Castle" is 4.6 km from the Llwyn Onn Merthyr Tydfil and Cardiff airport is 65 km away.

Merthyr Vale railway station is approximately 40 minutes away by car.

Rooms

This accommodation offers rooms with a patio and a seating area featuring an iron and ironing board, along with a flat-screen TV with satellite channels. Bathrooms are equipped with a separate toilet and a shower, as well as comforts such as hairdryers and bath sheets.

Leisure & Business

If you like an active lifestyle, hiking and fishing are available on site.

Must-do experiences

  • Hike up Pen y Fan for stunning views of the Brecon Beacons.
  • Visit the Brecon Mountain Railway for a scenic steam train ride.
  • Try the traditional Welsh cake at The Red Cow Inn nearby.
  • Explore the unique Cyfarthfa Castle and its beautiful grounds.
  • Check out the local artisan market in Merthyr on weekends.
View all

Select your room type

Llwyn Onn Guest House offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Double Room Garden View
2 persons
220 sq. feet 
1 Double bed
Shower
Heating
Executive Twin Room
2 persons
220 sq. feet 
2 Single beds
Shower
Heating
Executive Double Room
2 persons
220 sq. feet 
1 Double bed
Shower
Heating

Price and Room Availability Calendar

Check availability and prices for your dates now!

Facilities

Llwyn Onn Guest House offers amenities for your comfortable stay and unforgettable experiences
Facilities: Great
8.9/10Review score

General

  • No smoking on site
  • Parking
  • No pets allowed
  • Rooms/ Facilities for disabled
  • Fire extinguishers

Sports & Fitness

  • Canoeing
  • Hiking
  • Horseback riding
  • Cycling
  • Golf course
  • Fishing

Guest Parking

  • Electric kettle

Business

  • Meeting/ Banquet facilities
  • Fax/Photocopying

Children

  • Cots
  • Board games

Spa & Leisure

  • Garden area
  • Leisure/ TV room

Room features

  • Free Wi-Fi in rooms
  • Heating
  • Sitting area
  • Patio
  • Terrace
  • Garden furniture
  • Tea and coffee facilities
  • Ironing facilities

Bathroom

  • Free toiletries

Self-catering

  • Electric kettle

Media

  • Flat-screen TV

Room decor

  • Carpeted floor
Show more

Llwyn Onn Guest House Location

Llwyn Onn, Merthyr Tydfil, United Kingdom, CF48 2HT
Map view
Llwyn Onn, Merthyr Tydfil, United Kingdom, CF48 2HT
Nearby
Llwyn-on Reservoir
2600 ft
Getting around
City Centre
Merthyr Tydfil10 min  ·  4.0 mi
Airports
Cardiff Airport (CWL)94 min  ·  38.8 mi
Swansea Airport (SWS)103 min  ·  42.3 mi
Train
Merthyr Tydfil Railway Station11 min  ·  4.2 mi
Cwmbach Train Station16 min  ·  6.5 mi
Interested in Nearby Hotel Rates?
Live prices. No outdated rates
Check Rates
Property information and rules
Check-in
from 16:00-20:00
Check-out
from 08:00-10:00
Guest Parking
Private parking is possible on site for free.
Internet
Wireless internet is available in the hotel rooms for free.
Breakfast
At the hotel Llwyn Onn Guest House guests are invited to a full breakfast served for free. 
Children & extra beds
Maximum capacity of extra beds in a room is 1. 
Pets
Pets are not allowed.
Number of rooms:
7

Reviews and Ratings

Feedback about Llwyn Onn Guest House from previous guests about their experience.
Review score
Based on 225 verified reviews
9.0/10
Perfect
94%
Recommend
Breakfast
9.4/10
Cleanliness
9.1/10
Comfort
9.2/10
Facilities
8.9/10
Free Wi-Fi
9.5/10
Location
9.2/10
Paid Wi-Fi
9.0/10
Staff
9.5/10
Value for money
9.0/10
Guest reviews
based on 433 reviews
9.0/10
No reviews yet on our siteUnfortunately, our guests have not yet left any reviews for this hotel, but you can read reviews from Booking.com.
Open reviews
Check-in
16Mar2026Select date
Check-out
17Mar2026Select date
Rooms and Guests2 Guests, 1 Room