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Floorplan
MapGuide price
£395,0003 bedroom detached house for sale
Yr Helfa, Llanberis, Caernarfon, Gwynedd, LL55 4UW
Featured
Auction
Energy efficient
Solar PV
Detached house
3 beds
3 baths
Key information
Features and description
- A unique off-grid Welsh longhouse with established rental income.
- Located in the foothills of Snowdon with 360-degree mountain views.
- EPC: A
- The property is built with local stone, and a Welsh slate roof from the nearby Bethesda quarries.
- To be offered for sale via Knight Frank Auctions on 12th February 2026 (unless sold or withdrawn prior)
Interested parties should contact Knight Frank Auctions for further information.
Description
Yr Helfa is a traditional Welsh longhouse believed to have been constructed in the 1700s. The property is built with local stone, and a Welsh slate roof from the nearby Bethesda quarries. The interior features Welsh slate slab flooring, exposed stone work and traditional fireplaces.
The current owners have undertaken a complete and extensive rebuild of the property, blending traditional materials and building methods with state of the art infrastructure and services
Yr Helfa is powered by a smart technology off grid system, which includes a weather station. There is both solar and water solar PV, a biomass boiler, along with gravity feed water with filtration and sterilisation treatment centre. There is a smart controlled energy efficient back-up generator. Biofuelled underfloor heating is found throughout, controlled by a smart zoned control.
This system has helped Yr Helfa achieve an EPC Rating of A.
The property has established income as a unique holiday let. Further details available
ACCOMMODATION
Ground Floor: Kitchen, Dining area, Living room, Three bedrooms, Three bathrooms, Utility room, Plant rooms
Gardens & Grounds: The property stands in approximately 0.27 acres. BBQ area (raised stone built), Generator shed and Bin store.
Total Area: approx. 0.27 acres
TENURE - Freehold
PLANNING STATUS - The property is currently classed as C6 commercial.
A pre-planning application (02/11/23) received a positive response indicating the council would generally support a change of use to C3 residential, subject to a full planning application. The property may be occupied for stays of up to 31 days at a time. Yr Helfa is currently classed as a commercial property (C6 status). Planning permission for residential classification is available, subject to the completion of a S106 agreement and payment of a consideration, that is currently with solicitors for processing. See Legal Pack for further details.
LOCAL AUTHORITY - Gwynedd County Council
ENERGY PERFORMANCE CERTIFICATE - Rating: A
SERVICES
Solar & water PV
Back-up smart generator
Private drainage
Private water supply
New water storage and treatment system
New underfloor heating run via a smart connection/control via wood pellet biomass
Smart/ private battery bank and remote connection/control
ACCESS
The property is reached via local authority roads until approximately 0.5 miles away, where the road changes to a private track with right of way, accessed via 4 x 4 vehicles only.
VIEWINGS in 2026 - Strictly by Appointment Only
Please email - [use Contact Agent Button]
Location
Yr Helfa stands in a beautiful mountain setting on the Llanberis side of Yr Wyddfa (Snowdon), nestled at the foot of Moel Cynghorion forming part of the Moel Eilio section of the Snowdon Horseshoe trail. The property enjoys 360-degree unobstructed panoramic views including Snowdon and the Snowdon Mountain Railway. Llanberis, located on Lake Padarn, is renowned for outdoor pursuits and offers shops, outdoor retailers, restaurants, pubs and a primary school. Caernarfon Bay and Anglesey are within easy driving distance. Caernarfon (8 miles) offers an extensive range of services and the 13th-century castle. Bangor lies further along the coast with university and city amenities.
Distances: Llanberis 1.2 miles, Bangor 12.9 miles, Betws-y-Coed 16.5 miles, Conwy 23.4 miles, Chester 69.2 miles, Liverpool 85 miles, Shrewsbury 77.5 miles
Communication links are excellent, with the A55 providing a link between the North Wales coast and Chester, as well as the motorway network connecting to Liverpool and Manchester. A direct train route to London can be had from Holyhead.
Occupancy
Vacant
The buyers fee is including VAT. This is only payable by the successful purchaser. There are no costs to bidding for the property.
Auction Details
The sale of this property will take place on the stated date by way of and is being sold as Unconditional.
Binding contracts of sale will be exchanged at the point of sale.
All sales are subject to the Common Auction Conditions and Extra General Conditions.
Auctioneer Fees and Deposit
The following deposits and non-refundable auctioneer fees apply:
•10% deposit, subject to a minimum of £5,000. The deposit contributes to the purchase price.
•Buyer’s Fee- the value of this fee will be listed against the property details, inclusive of VAT.
The Buyer’s Fee does not contribute to the purchase price and will be considered as part of the chargeable consideration for the property in the calculation of stamp duty liability.
There may be additional fees contained within the Special Conditions of Sale, which can be viewed within the Legal Pack. You are strongly advised to read the Legal Pack carefully before bidding.
Additional Information:
For full details about all auction methods and sale types please refer to the Auction Conduct Guide which can be viewed on the Knight Frank Auctions website.
This guide includes details on the auction registration process, your payment obligations and how to view the Legal Pack.
Each property sold is subject to a Reserve Price. The Reserve Price will be within + or – 10% of the Guide Price. The Guide Price is issued solely as a guide so that a buyer can consider whether or not to pursue their interest. A full definition can be found within the Buyers Terms.
Description
Yr Helfa is a traditional Welsh longhouse believed to have been constructed in the 1700s. The property is built with local stone, and a Welsh slate roof from the nearby Bethesda quarries. The interior features Welsh slate slab flooring, exposed stone work and traditional fireplaces.
The current owners have undertaken a complete and extensive rebuild of the property, blending traditional materials and building methods with state of the art infrastructure and services
Yr Helfa is powered by a smart technology off grid system, which includes a weather station. There is both solar and water solar PV, a biomass boiler, along with gravity feed water with filtration and sterilisation treatment centre. There is a smart controlled energy efficient back-up generator. Biofuelled underfloor heating is found throughout, controlled by a smart zoned control.
This system has helped Yr Helfa achieve an EPC Rating of A.
The property has established income as a unique holiday let. Further details available
ACCOMMODATION
Ground Floor: Kitchen, Dining area, Living room, Three bedrooms, Three bathrooms, Utility room, Plant rooms
Gardens & Grounds: The property stands in approximately 0.27 acres. BBQ area (raised stone built), Generator shed and Bin store.
Total Area: approx. 0.27 acres
TENURE - Freehold
PLANNING STATUS - The property is currently classed as C6 commercial.
A pre-planning application (02/11/23) received a positive response indicating the council would generally support a change of use to C3 residential, subject to a full planning application. The property may be occupied for stays of up to 31 days at a time. Yr Helfa is currently classed as a commercial property (C6 status). Planning permission for residential classification is available, subject to the completion of a S106 agreement and payment of a consideration, that is currently with solicitors for processing. See Legal Pack for further details.
LOCAL AUTHORITY - Gwynedd County Council
ENERGY PERFORMANCE CERTIFICATE - Rating: A
SERVICES
Solar & water PV
Back-up smart generator
Private drainage
Private water supply
New water storage and treatment system
New underfloor heating run via a smart connection/control via wood pellet biomass
Smart/ private battery bank and remote connection/control
ACCESS
The property is reached via local authority roads until approximately 0.5 miles away, where the road changes to a private track with right of way, accessed via 4 x 4 vehicles only.
VIEWINGS in 2026 - Strictly by Appointment Only
Please email - [use Contact Agent Button]
Location
Yr Helfa stands in a beautiful mountain setting on the Llanberis side of Yr Wyddfa (Snowdon), nestled at the foot of Moel Cynghorion forming part of the Moel Eilio section of the Snowdon Horseshoe trail. The property enjoys 360-degree unobstructed panoramic views including Snowdon and the Snowdon Mountain Railway. Llanberis, located on Lake Padarn, is renowned for outdoor pursuits and offers shops, outdoor retailers, restaurants, pubs and a primary school. Caernarfon Bay and Anglesey are within easy driving distance. Caernarfon (8 miles) offers an extensive range of services and the 13th-century castle. Bangor lies further along the coast with university and city amenities.
Distances: Llanberis 1.2 miles, Bangor 12.9 miles, Betws-y-Coed 16.5 miles, Conwy 23.4 miles, Chester 69.2 miles, Liverpool 85 miles, Shrewsbury 77.5 miles
Communication links are excellent, with the A55 providing a link between the North Wales coast and Chester, as well as the motorway network connecting to Liverpool and Manchester. A direct train route to London can be had from Holyhead.
Occupancy
Vacant
The buyers fee is including VAT. This is only payable by the successful purchaser. There are no costs to bidding for the property.
Auction Details
The sale of this property will take place on the stated date by way of and is being sold as Unconditional.
Binding contracts of sale will be exchanged at the point of sale.
All sales are subject to the Common Auction Conditions and Extra General Conditions.
Auctioneer Fees and Deposit
The following deposits and non-refundable auctioneer fees apply:
•10% deposit, subject to a minimum of £5,000. The deposit contributes to the purchase price.
•Buyer’s Fee- the value of this fee will be listed against the property details, inclusive of VAT.
The Buyer’s Fee does not contribute to the purchase price and will be considered as part of the chargeable consideration for the property in the calculation of stamp duty liability.
There may be additional fees contained within the Special Conditions of Sale, which can be viewed within the Legal Pack. You are strongly advised to read the Legal Pack carefully before bidding.
Additional Information:
For full details about all auction methods and sale types please refer to the Auction Conduct Guide which can be viewed on the Knight Frank Auctions website.
This guide includes details on the auction registration process, your payment obligations and how to view the Legal Pack.
Each property sold is subject to a Reserve Price. The Reserve Price will be within + or – 10% of the Guide Price. The Guide Price is issued solely as a guide so that a buyer can consider whether or not to pursue their interest. A full definition can be found within the Buyers Terms.
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