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9 / 10 Guest Rating

Llwyn Onn Guest House

Llwyn Onn, Merthyr Tydfil, gb

Llwyn Onn Guest House - main view

About the Property

Scenic Views and Tranquil Setting
Enjoy breathtaking views of the Llwyn Onn reservoir from our idyllic guest house located in the heart of the picturesque Brecon Beacons.

Award-Winning Accommodation
Experience luxury and comfort in our 4-star AA and Welsh Tourist Board awarded guest house, offering 11 modern en-suite bedrooms designed for your relaxation and convenience.

Perfect Blend of Business and Leisure
Whether you're here for work or relaxation, Llwyn Onn Guest House provides a warm and welcoming atmosphere, ideal for unwinding after a day of exploring the beautiful surroundings.

Come and escape to Llwyn Onn Guest House for a memorable stay in the stunning Brecon Beacons.

Facilities & Amenities

WiFi available
Free WiFi
Parking
Free Parking
Non-smoking rooms
Heating
Terrace
Garden
Hiking
Fishing

Important Information

Check-in & Out

Check-in
Check-out10:30 AM

Property Notes

When booking 4 rooms or more, different policies and additional supplements will apply. All requests for early check-in are subject to approval by the property.This property does not accommodate bachelor(ette) or similar parties. A deposit may be required at the property.

Check Room Availability

1 night · 2 adults

No rooms available

We couldn't find any available rooms for these dates and guests. Try adjusting your search criteria.

Guest Reviews

9
Exceptional688 verified reviews
AI Summary

Guests highly rate the friendly staff and frequently praise the great location.

Categories

Cleanliness9.1
Service9.1
Location9.2
Room Quality8.6
Amenities8.6
Value for Money9.1
Food and Beverage9.1
Overall Experience9.1

Select topics to read reviews

A
AnngbGB
Verified booking
extended_group
Standard Room
Stayed in Jan 19, 2026

"Friendly staff clean comfortable assexpected"

9.0

Breakfast perfect staff interesting and friendly location was convenient for my needs

Nothing

Helpful?
H
Haddock (UK)gbGB
Verified booking
solo_traveller
Standard Room
Stayed in Jan 19, 2026

"Exceptional"

9.0
Helpful?
V
victoriagbGB
Verified booking
family_with_children
Standard Room
Stayed in Jan 5, 2026

"Exceptional"

10.0

The personal touch at breakfast, very lovely ladies,

Helpful?
S
sarah-jaynegbGB
Verified booking
family_with_children
Standard Room
Stayed in Jan 4, 2026

"Exceptional"

10.0

This is the second time I have stayed at this wonderful BnB, I came a few years ago after hiking Pen Y Fan and had such a wonderful stay when it came to coming back to hike again with my teenage daughter there was no question I would revisit Llwyn Onn and the lovely friendly Mora. It is a short distance by car from Pen Y Fan and so picturesque. Mora kindly arranged for the heating to be on so the room was nice and warm when we arrived after a long day of hiking. The room was spotless and we had a wonderful night sleep. We were greeted by the most wonderful lady for breakfast, which was delicious and myself and my daughter enjoyed a chat with her and a real giggle. Mora, even with an injured leg made an effort to come and say goodbye to us and meet my daughter. If you are looking for a warm and friendly stay in the area I highly recommend this BnB. A stay away isnt just about the property its also about the people who run it and I can promise you they are wonderful women to meet. Take good care Mora, Nancy and I will be back later this year.

Nothing negative at all!

Helpful?
L
LachlangbGB
Verified booking
couple
Standard Room
Stayed in Dec 24, 2025

"Perfect place to stay if you’re in the area."

10.0

The very kind and accommodating owner and staff. The amazing location and breakfast!

Everything was amazing.

Helpful?
M
Madder-SmithgbGB
Verified booking
couple
Standard Room
Stayed in Nov 27, 2025

"We came for a funeral but the stay made our "grey" turn to sun ."

10.0

What a lovely place with lovely staff and owner .

Helpful?
F
FunkyCarlosgbGB
Verified booking
couple
Standard Room
Stayed in Nov 24, 2025

"Lovely B&B near Horseshoe Ridge"

9.0

Lovely property in a great location. We were hiking in the nearby Horseshoe Ridge and found Llwyn Onn via booking.com, a great price for the night. The staff were amazing and the breakfast was fantastic. We would and will come back 100%

N/A

Helpful?
D
DeborahgbGB
Verified booking
solo_traveller
Standard Room
Stayed in Nov 20, 2025

"Great stay and would definitely return if I was in the area."

9.0

Free parking at the door. Really easy check in. Large bedroom and en-suite shower/toilet. Nice and warm. Sparkling clean. Great breakfast. Friendly and chatty staff (reminded me of the ‘Golden Girls’). 🎄great to see a Christmas tree up, just added to the warm atmosphere.

Breakfast has a narrow window, and at 08.15 to 09.15 is a little late. To turn this into a positive the ladies cooked my breakfast at speed. Great service 🥳

Helpful?
A
AHMEDsaSA
Verified booking
family_with_children
Standard Room
Stayed in Nov 17, 2025

"Excellent"

8.0
Helpful?
L
LorettagbGB
Verified booking
couple
Standard Room
Stayed in Nov 17, 2025

"A great stay in beautiful Wales, thank you!"

10.0

An excellent breakfast, as always. Moira and her wonderful staff could not have been more attentive. Always offering more and checking if all ok.

Helpful?
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