Avg. for October
Select dates to see prices and availability
Avg. for October
Nightly prices at Llwyn Onn Guest House average US$107 in the cheapest month (October) and US$115 in the most expensive month (August), based on the last 12 months.
| Month | Average price |
|---|---|
| January | US$107 |
| February | US$110 |
| March | US$109 |
| April | US$108 |
| May | US$108 |
| June | US$109 |
| July | US$111 |
| August | US$115 |
| September | US$111 |
| October | US$107 |
| November | US$107 |
| December | US$107 |
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Oct · US$107
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Most expensive: August (~US$115)
Cheapest: October (~US$107)
Amenities
This smoke-free guesthouse features mountain biking nearby.
Business amenities
Free self parking is available onsite.
Rooms
Make yourself at home in one of the 11 guestrooms.
Location
With a stay at Llwyn Onn Guest House in Merthyr Tydfil, you'll be within a 5-minute drive of Brecon Beacons National Park and Garwnant Visitor Centre. This guesthouse is 3.4 mi (5.4 km) from Cyfarthfa Park and Museum and 4 mi (6.5 km) from Joseph Parry's Cottage.
What's nearby
Garwnant Visitor Centre(1.7 Miles)
Brecon Beacons National Park(1.9 Miles)
Cyfarthfa Park and Museum(3.4 Miles)
Joseph Parry's Cottage(4 Miles)
Joseph Parry's Ironworker's Cottage(4.1 Miles)
Merthyr Tydfil Leisure Centre(5.3 Miles)
Penderyn Distillery(5.8 Miles)
Brecon Mountain Railway(5.9 Miles)
Aberdare Park(7.1 Miles)
Aberdare Golf Club(7.2 Miles)
BikePark Wales(7.2 Miles)
Craig Cerrig Gleisiad a Fan Frynych National Nature Reserve(7.6 Miles)
Dare Valley Country Park(7.9 Miles)
Aberdare Swimming Pool(8.1 Miles)
Pontsticill Reservoir(8.3 Miles)
The preferred airport for Llwyn Onn Guest House is Cardiff International Airport (CWL)(39.1 Miles)
Parking
Non-smoking rooms
Banquet facilities
Garden
Golf course (nearby)
Cycling
Garwnant Visitor Centre (1.7 Miles)
Brecon Beacons National Park (1.9 Miles)
Cyfarthfa Park and Museum (3.4 Miles)
Joseph Parry's Cottage (4 Miles)
Joseph Parry's Ironworker's Cottage (4.1 Miles)
Merthyr Tydfil Leisure Centre (5.3 Miles)
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Sleeps 2
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Sleeps 2
2
Sleeps 2
1
Based on 359 verified reviews
Business
13%
Couple
53%
Family
15%
Group
13%
Solo
3%
AI-generated summary based on recent guest reviews
At Llwyn Onn Guest House, reviewers consistently praise the friendly team, clean and comfortable rooms, and a hearty, varied breakfast, while highlighting the peaceful, scenic location that works well for exploring the Brecon Beacons and nearby trails.
Facilities
Cleanliness
Rooms
Service
Location
Dining
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What guests think
At Llwyn Onn Guest House, reviewers consistently praise the friendly team, clean and comfortable rooms, and a hearty, varied breakfast, while highlighting the peaceful, scenic location that works well for exploring the Brecon Beacons and nearby trails.
Rooms are often spacious with handy touches like mini fridges, baths or modern bathrooms, and Wi-Fi that is usually fast. Some drawbacks appear, including softer or ageing mattresses, occasional heating or hot-water quirks, and rare operational hiccups such as an unattended check-in or a long breakfast delay due to equipment failure. Overall, expect a comfortable, fuss-free base well suited to exploring the national park.
Facilities
Cleanliness
Rooms
Service
Location
Dining
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AI-generated summary based on recent guest reviews
Facilities
Guests note ample on-site parking and appreciate accessible ground-floor rooms for those with mobility needs.
Related guest reviews
Malgorzata
29 Aug 2023
·
Stayed 3 nights
Graham
12 Aug 2024
·
Stayed 1 night
Paula
26 Jun 2023
·
Stayed 1 night
Rob
18 Aug 2024
·
Stayed 2 nights
Was this helpful?
AI-generated summary based on recent guest reviews
Cleanliness
Reviews consistently describe rooms as very clean, with several calling them spotless.
Related guest reviews
Angela
17 Mar 2024
·
Stayed 1 night
Kirsty
12 Aug 2025
·
Stayed 1 night
Malgorzata
29 Aug 2023
·
Stayed 3 nights
Graham
12 Aug 2024
·
Stayed 1 night
Jonathan
3 Jul 2025
·
Stayed 1 night
Nicola
11 May 2025
·
Stayed 1 night
Irene
18 Apr 2024
·
Stayed 2 nights
stephen
9 Nov 2023
·
Stayed 2 nights
Haim
27 Aug 2025
·
Stayed 3 nights
Duncan
18 Jan 2026
·
Stayed 2 nights
Was this helpful?
AI-generated summary based on recent guest reviews
Rooms
Rooms are generally spacious and comfortable, often with mini fridges, baths or modern bathrooms, and Wi-Fi available in rooms. Some guests mentioned softer or ageing mattresses and occasional heating, ventilation or hot-water issues.
Related guest reviews
Kirsty
12 Aug 2025
·
Stayed 1 night
Malgorzata
29 Aug 2023
·
Stayed 3 nights
Michaela
11 Feb 2025
·
Stayed 1 night
Peter
29 May 2025
·
Stayed 2 nights
Pete
1 Nov 2024
·
Stayed 3 nights
Irene
18 Apr 2024
·
Stayed 2 nights
David
25 Feb 2024
·
Stayed 1 night
William
21 Jul 2023
·
Stayed 2 nights
Haim
27 Aug 2025
·
Stayed 3 nights
Jean
19 Oct 2024
·
Stayed 1 night
Was this helpful?
AI-generated summary based on recent guest reviews
Service
Feedback highlights very friendly, helpful staff and easy check-in (sometimes self-service). A few guests reported communication lapses or slower problem resolution.
Related guest reviews
Martyn
7 Jul 2025
·
Stayed 1 night
Angela
17 Mar 2024
·
Stayed 1 night
Peter
29 May 2025
·
Stayed 2 nights
Jonathan
3 Jul 2025
·
Stayed 1 night
stephen
9 Nov 2023
·
Stayed 2 nights
Andrew
7 Aug 2023
·
Stayed 2 nights
Yann
24 Jul 2025
·
Stayed 1 night
Maura
27 Sept 2023
·
Stayed 3 nights
Haim
27 Aug 2025
·
Stayed 3 nights
Jeff
12 Jul 2025
·
Stayed 1 night
Was this helpful?
AI-generated summary based on recent guest reviews
Location
A quiet, scenic base within the Brecon Beacons, convenient for Pen y Fan, waterfalls and many hiking trails, and generally easy to reach.
Related guest reviews
Martyn
7 Jul 2025
·
Stayed 1 night
Angela
17 Mar 2024
·
Stayed 1 night
Graham
12 Aug 2024
·
Stayed 1 night
Jonathan
3 Jul 2025
·
Stayed 1 night
Nawaaz
1 Apr 2024
·
Stayed 3 nights
David
25 Feb 2024
·
Stayed 1 night
Claire
13 Oct 2024
·
Stayed 2 nights
Martin
2 Jul 2025
·
Stayed 2 nights
Maura
27 Sept 2023
·
Stayed 3 nights
Duncan
23 Jun 2025
·
Stayed 2 nights
Was this helpful?
AI-generated summary based on recent guest reviews
Dining
Breakfast is widely praised for quality and choice, with cooked-to-order and continental options and some dietary accommodations. There were isolated issues such as a long wait due to a kitchen breakdown and one comment that breakfast was basic.
Related guest reviews
Martyn
7 Jul 2025
·
Stayed 1 night
Angela
17 Mar 2024
·
Stayed 1 night
Tammi
28 Sept 2023
·
Stayed 1 night
Jonathan
3 Jul 2025
·
Stayed 1 night
Nicola
11 May 2025
·
Stayed 1 night
Yann
24 Jul 2025
·
Stayed 1 night
G.P.
20 Aug 2023
·
Stayed 2 nights
Maura
27 Sept 2023
·
Stayed 3 nights
Duncan
23 Jun 2025
·
Stayed 2 nights
Haim
27 Aug 2025
·
Stayed 3 nights
Was this helpful?
AI-generated summary based on recent guest reviews
Emily
17 Aug 2026
·
Stayed 1 night
Matthew
15 Jun 2026
·
Stayed 1 night
Kathryn
7 Jun 2026
·
Stayed 1 night
James
18 May 2026
·
Stayed 1 night
Bryan
9 May 2026
·
Stayed 1 night
Everything you need to know for a smooth check-in.
Check-in
Check-out
From 16:00 to 20:00
Before 10:30
Additional policies and info about this property.
Yes, free self-parking is available onsite.
Check-in is from 16:00 to 20:00, and check-out is at 10:30. Early or late check-in/check-out may be available upon request.
The property is located within a 5-minute drive of Brecon Beacons National Park and Garwnant Visitor Centre, approximately 3.4 miles from Cyfarthfa Park and Museum, and 4 miles from Joseph Parry's Cottage.
Children are allowed, but specific policies regarding age and fees are not provided.
Have a question?
Instant AI responses are based on hotel information
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Cheaper
Pricier
Average nightly price across deals, with taxes & fees.
Prices in USD for 2 guests, updated daily.
Check-in must be done by someone who is at least 18 years old.
Popular amenities
Parking
Non-smoking rooms
Banquet facilities
Garden
Golf course (nearby)
Cycling
Activities
Garden
Golf course (nearby)
Cycling
Fishing
Horse riding
Canoeing
Hiking
Outdoor Furniture
Terrace
Parking
Parking
Free parking
Parking Onsite
Services
Banquet facilities
General
Non-smoking rooms
Internet
Free wi-fi