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Llwyn Onn Guest House

4.0 star property
4-star eco-certified guest house near Brecon Beacons National Park

Choose dates to view prices

Photo gallery for Llwyn Onn Guest House

Exterior
Exterior
Miscellaneous
Exterior
Lounge

Reviews

8.8 out of 10
Excellent

Popular amenities

  • Parking included
  • Business services

Explore the area

Map
Llwyn Onn, Cwmtaf, Merthyr Tydfil, Wales, CF48 2HT
  • Garwnant Visitor Centre
    ‪2 min drive‬
  • Brecon Beacons National Park
    ‪3 min drive‬
  • Brecon Mountain Railway
    ‪9 min drive‬
  • Cardiff (CWL-Cardiff Intl.)
    ‪53 min drive‬

Room options

View all photos for Double Room, Ensuite (Garden View)

Double Room, Ensuite (Garden View)

Double Room, Ensuite (Garden View)

10.0 out of 10
Exceptional
(3 reviews)
  • Sleeps 2
  • 1 Double Bed

View all photos for Executive Double Room, Ensuite

Executive Double Room, Ensuite

Executive Double Room, Ensuite

9.6 out of 10
Exceptional
(9 reviews)
  • Sleeps 2
  • 1 Double Bed

View all photos for Standard Single Room, Ensuite, Lake View

Standard Single Room, Ensuite, Lake View

Standard Single Room, Ensuite, Lake View

  • Lake view
  • Sleeps 1
  • 1 Double Bed

View all photos for Executive Twin Room, 2 Twin Beds, Ensuite

Executive Twin Room, 2 Twin Beds, Ensuite

Executive Twin Room, 2 Twin Beds, Ensuite

9.0 out of 10
Wonderful
(2 reviews)
  • Sleeps 2
  • 2 Twin Beds

About the neighborhood

Merthyr Tydfil

In Merthyr Tydfil .Within 3 miles (5 km) of this Merthyr Tydfil guesthouse, you'll find Brecon Beacons National Park and Garwnant Visitor Centre. Cyfarthfa Park and Museum and Joseph Parry's Cottage are also within 6 miles (10 km).
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What's nearby

  • Garwnant Visitor Centre - 2 min drive - 1.7 miles
  • Brecon Beacons National Park - 3 min drive - 2.6 miles
  • Brecon Mountain Railway - 9 min drive - 6.5 miles
  • BikePark Wales - 13 min drive - 8.9 miles
  • Penderyn Distillery - 15 min drive - 11.9 miles

Getting around

  • Troed-y-Rhiw Station - 12 min drive
  • Cardiff International Airport (CWL) - 71 min drive

Restaurants

  • ‪McDonald's - ‬6 min drive
  • ‪Costa Coffee - ‬6 min drive
  • ‪KFC - ‬6 min drive
  • ‪Kam Wah - ‬11 min drive
  • ‪Mango House - ‬5 min drive

About this property

Llwyn Onn Guest House

4-star eco-certified guest house near Brecon Beacons National Park
Free breakfast is served. Public spaces have WiFi for a fee. Free self parking is available.

This 4-star Merthyr Tydfil guesthouse is smoke free.

  • 11 guestrooms or units
  • Breakfast available (free)
  • Staff is multilingual
  • Pool or billiards table
  • No smoking on site
  • 1 conference room
Llwyn Onn Guest House offers 11 accommodations.

Awards and affiliations

Eco-Certified Property
This property participates in Green Tourism Program, a program that measures the property's impact on one or more of the following: environment, community, cultural-heritage, the local economy.

Languages

English, Portuguese, Welsh

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Property grounds

Nant Ddu Lodge Hotel

  • Pool
  • Hot Tub
  • Breakfast included
  • Spa
4.2 out of 5, Very Good, 462 reviews
$99 nightly
The price is $119
Jun 30 - Jul 1
Total includes taxes and fees
Nant Ddu Lodge Hotel

Property amenities

Internet

  • Available in some public areas: WiFi (surcharge)

Parking and transportation

  • Free self parking on site

Food and drink

  • Free breakfast available

Things to do

  • Billiards/pool table

Accessibility

  • No elevator

Policies

Check-in

Check-in start time: 4:00 PM; Check-in end time: 8:00 PM
Early check-in subject to availability
Minimum check-in age: 18

Check-out

Check-out before 10:30 AM

Special check-in instructions

The host will greet guests on arrival

Access methods

Host will greet you

Pets

  • No pets allowed

Children and extra beds

  • Children are welcome.

Property payment types

Important information

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards
Charges for extra guests may apply and vary according to property policy.
A cash deposit, credit card, or debit card for incidental charges and government-issued photo identification may be required upon check-in.
Special requests are subject to availability at the time of check-in. Special requests can't be guaranteed and may incur additional charges.
    This property accepts Visa, Mastercard, and American Express.

We should mention

  • Please note that this property can refuse certain bookings for the purpose of group events or parties, which include pre-wedding stag/bachelor and hen/bachelorette parties.

Property is also known as

Llwyn Guest House
Llwyn Onn
Llwyn Onn Guest House
Llwyn Onn Guest House Merthyr Tydfil
Llwyn Onn Merthyr Tydfil
Llwyn Onn Guest House Guesthouse Merthyr Tydfil
Llwyn Onn Guest House Guesthouse
Llwyn Onn Guest House Guesthouse Merthyr Tydfil
Llwyn Onn Guest House Guesthouse
Llwyn Onn Guest House Merthyr Tydfil
Guesthouse Llwyn Onn Guest House Merthyr Tydfil
Merthyr Tydfil Llwyn Onn Guest House Guesthouse
Guesthouse Llwyn Onn Guest House
Llwyn Onn House Merthyr Tydfil
Llwyn Onn Merthyr Tydfil
Llwyn Onn Guest House Guesthouse
Llwyn Onn Guest House Merthyr Tydfil
Llwyn Onn Guest House Guesthouse Merthyr Tydfil

Frequently asked questions

How close is Llwyn Onn Guest House to the airport?

Llwyn Onn Guest House is 39.1 mi (71-min drive) away from the Cardiff International Airport (CWL) airport, the closest popular airport to the property.

How much does it cost to stay at Llwyn Onn Guest House?

As of Jun 22, 2025, prices found for a 1-night stay for 2 adults at Llwyn Onn Guest House on Jul 2, 2025 start from $109.86, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Does Llwyn Onn Guest House have an airport shuttle?

Airport shuttle services are not available at Llwyn Onn Guest House.

Does Llwyn Onn Guest House offer free breakfast?

Yes, Llwyn Onn Guest House offers free breakfast.

Is there a casino at Llwyn Onn Guest House?

No, there is no casino at this guesthouse.

What time is check-in at Llwyn Onn Guest House?

Check-in start time: 4:00 PM; Check-in end time: 8:00 PM.

Is there free parking at Llwyn Onn Guest House?

This guesthouse offers free self parking.

Does Llwyn Onn Guest House have a pool?

Llwyn Onn Guest House does not have a pool.

Does Llwyn Onn Guest House have a spa?

There are no spa services available at this guesthouse.

How close is Llwyn Onn Guest House to downtown Merthyr Tydfil?

Llwyn Onn Guest House is 1.5 mi away from Vaynor.

Llwyn Onn Guest House Reviews

Reviews

8.8

Excellent

Rating 10 - Excellent. 124 out of 220 reviews
Rating 8 - Good. 67 out of 220 reviews
Rating 6 - Okay. 19 out of 220 reviews
Rating 4 - Poor. 7 out of 220 reviews
Rating 2 - Terrible. 3 out of 220 reviews

9.0/10

Cleanliness

9.0/10

Staff & service

9.0/10

Amenities

9.0/10

Property conditions & facilities

9.0/10

Eco-friendliness

Reviews

10/10 Excellent

Claire

Traveled with group
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Fantastic guest house

Amazing food and hospitality, very comfortable and clean room, definitely recommend
Stayed 2 nights in Feb 2025

8/10 Good

Michaela

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Comfy Stay

We had a lovely stay. The bedroom (number 2) was well fitted, with a comfy bed and a mini fridge which was a great extra. Good breakfast and friendly staff. Would stay again if in area
Stayed 1 night in Feb 2025

10/10 Excellent

richard

Liked: Cleanliness, staff & service, property conditions & facilities
This was an amazing place with really friendly and helpful staff, would recommend to anyone
Stayed 1 night in Jan 2025

6/10 Okay

Marc

Stayed 1 night in Jan 2025

10/10 Excellent

Karolina

Stayed 2 nights in Oct 2024

10/10 Excellent

Pete

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Great

Great stay in a large room with comfortable bed. Breakfast was good. Relaxed atmosphere with friendly pleasant staff. We would happily stay here again.
Stayed 3 nights in Oct 2024

8/10 Good

Ann

Stayed 1 night in Oct 2024

10/10 Excellent

Jean

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Cool stay.

In room heating left a bit to be desired & no bathroom exhaust fan evident.
Stayed 1 night in Oct 2024

10/10 Excellent

Claire

Traveled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Fabulous stay in the Brecon Beacons

Absolutely amazing hospitality, wonderful host. Fabulous food. Great location for exploring the stunning countryside of the Brecon Beacons. Homely, comfortable rooms, highly recommend.
Stayed 2 nights in Oct 2024

10/10 Excellent

Rob

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nothing to dislike -everything was superb everybody made us so welcome ,lovely facilities ,will definitely book again
Stayed 2 nights in Aug 2024

10/10 Excellent

Graham

Traveled with family
Liked: Cleanliness, staff & service, property conditions & facilities
Fantastic location, plenty of parking, very attentive and lovely polite owner and staff,rooms were spotless and clean, lovely cooked breakfast, and the downstairs rooms being wheel chair accessable around the room, both sides of the bed and bathroom none of which was any trouble, would definitely visit again, thankyou for your warm welcome to you all.
Stayed 1 night in Aug 2024

10/10 Excellent

Arran

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
.
Stayed 1 night in Jul 2024

8/10 Good

Marc

Stayed 1 night in Jul 2024

8/10 Good

Mark

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jun 2024

10/10 Excellent

Philip

Traveled with group
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff and owner were very polite and friendly great place to stay would stay again 👍💯
Stayed 2 nights in Jun 2024

8/10 Good

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jun 2024

10/10 Excellent

Irene

Traveled with partner
Liked: Cleanliness, staff & service, property conditions & facilities
Very comfortable beds, clean and well decorated rooms everything been thought of even small fridge. Friendly staff and owner
Stayed 2 nights in Apr 2024

10/10 Excellent

Nawaaz

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great property with really nice rooms. The staff are so friendly and amazing. Great place to stay away from the busy town and with easy access to the popular hiking trails of the beacons
Stayed 3 nights in Mar 2024

10/10 Excellent

Angela

Liked: Cleanliness, amenities, property conditions & facilities
Great location. Check- in was really easy. Room was spacious, clean and all requirements were catered for. Breakfast was delicious with lots of choice. Staff could not do enough for you. Would definitely recommend!
Stayed 1 night in Mar 2024

8/10 Good

David

Traveled with partner
Liked: Staff & service
Disliked: Amenities
Reviewed bearing the price point in mind. Likes: This located very close to the Brecon peaks including Pen Y Fan, so it's an ideal hikers stopover. More than adequate rooms including fridge, hairdryer and ironing board plus good storage and a bath for a soak after your day's walking. Friendly staff. Dislikes: Old building so condensation is an issue (in our room 3 at least). The Internet was down when we arrived, due to a road accident the night before. Admittedly this was not the fault of the B&B but, as neither of us had mobile signal, this made planning our next day impossible. This is pretty trivial for most people but, if the proprietor had informed us we could have chosen to stay elsewhere and avoid not having one of the amenities that we paid for. Business travellers rely on hotel Internet access, so this could have been critical.
Stayed 1 night in Feb 2024

10/10 Excellent

Colleen

2 night stay visiting family

We had a lovely 2 night stay. The owner Moyra and her girls were excellent, very welcoming and friendly. Breakfast was absolutely lovely. Would highly recommend and will back very soon. Thank you Moyra and staff 👍
Stayed 2 nights in Feb 2024

10/10 Excellent

stephen

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

you will not want to stay anywhere else.

this was our 4th visit to this B&B, sadly it was fully booked earlier in the year and we stayed at a Travelodge,( which we would rather not do again.) this B&B is always spotlessly clean ,staff are beyond lovely, we stay here to take the strain of family having to put us up when visiting .
Stayed 2 nights in Nov 2023

10/10 Excellent

Gareth

Traveled with group
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

An amazing top grade guest house.

The guest house is the best I have ever stayed in as it is of such a high standard fir the money it us amazing. The breakfast was delicious with such a great selection. The owner and staff are so lovely and can't do enough for you. If you are looking for a guest house in the Brecon Beacons then look no further.
Stayed 1 night in Nov 2023

10/10 Excellent

Mary

Liked: Cleanliness, staff & service, property conditions & facilities
This is a fabulous B&B. I would recommend to anyone traveling in the area.
Stayed 1 night in Oct 2023

10/10 Excellent

Carmen

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Would definitely stay again
Stayed 1 night in Oct 2023