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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
Exceptional693 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

L
LyndagbGB
Verified booking
solo_traveller
Standard Room
Stayed in Jun 27, 2026

"Good"

5.0

Excellent location in the Beacons; nice house and gardens with plenty of parking. Pleasant, well-appointed room.

We had an unfortunate experience in the height of a heatwave in that the shower in our room didn't work properly so was boiling hot. After some discussion and thanks to one of the staff, Jackie, we were offered another, larger room. However, that shower also ran very hot so we resorted to using the bath taps instead. It would be nice to have somebody to 'meet and greet 'on arrival rather than keys and a note, especially if (as we had) there's a problem.

Helpful?
S
StephengbGB
Verified booking
couple
Standard Room
Stayed in Jun 26, 2026

"this is the 4 th time we have stayed at this property & will again highly recommended"

9.0

arrived at b&b temp 34 deg outside and walked into the hall to the room The temp dropped to about 16 deg the room was the same no fans or air con in the room it was cool all night managed to sleep all night. Breakfast was excellant choice of cooked breakfast full English or or as you require it cereal or toast coffee tea fruit juice yogurt

the bed was a bit hard & the sheets were tightly tucked in so you could not move but got round it the shower was to hot but the owner was getting the plumber in to fix

Helpful?
M
MarkgbGB
Verified booking
solo_traveller
Standard Room
Stayed in Jun 24, 2026

"Exceptional"

10.0

Perfect location for the Fan Dance

Helpful?
M
MarcusgbGB
Verified booking
solo_traveller
Standard Room
Stayed in Jun 21, 2026

"Quiet, super friendly and a great breakfast."

9.0

A great little b&b. Lovely and quiet and peaceful. Close to some great walking and to eateries in Merthyr, 10 mins in the car either way for both. Lovely friendly staff and a great breakfast to start the day. Highly recommend it.

Nothing to dislike.

Helpful?
M
MarygbGB
Verified booking
couple
Standard Room
Stayed in Jun 21, 2026

"Great lovely staff"

8.0

Quiet

Bathroom

Helpful?
K
KimauAU
Verified booking
couple
Standard Room
Stayed in Jun 20, 2026

"Great Bed and breakfast in quiet location. Friendly staff."

8.0

Great freshly cooked breakfast. Instructions were well written

Bed a bit lumpy for me.

Helpful?
W
WaynegbGB
Verified booking
family_with_children
Standard Room
Stayed in Jun 20, 2026

"Very good"

8.0

Clean and very friendly staff. Enjoyed our stay.

Bed was a little for my frame but that's me

Helpful?
D
DavidgbGB
Verified booking
couple
Standard Room
Stayed in Jun 20, 2026

"Lovely"

10.0

Breakfast

Helpful?
S
SimongbGB
Verified booking
extended_group
Standard Room
Stayed in Jun 19, 2026

"Excellent"

8.0
Helpful?
L
LouisgbGB
Verified booking
couple
Standard Room
Stayed in Jun 17, 2026

"Exceptional"

10.0
Helpful?