Event & Accommodation Hire in a Tranquil Sanctuary
Trigonos offers a tranquil sanctuary for your event, set within 18 acres of stunning grounds with breathtaking views of the Eryri mountains and Llyn Nantlle. Immerse your guests in nature’s peace, enjoy our delicious organic vegetarian meals, and experience the serenity of biodynamically grown produce. Perfect for those seeking relaxation and connection.
You can download the 2026 Residential Venue Hire Rates here
Accommodation Space Prices
Residential 2025
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Plas Baladeulyn
Capacity - 15 people
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Cost of Hire (Per Night)
Mid WeekOffer (January - March & December 2025) £392.00
Weekdays (April - November 2025) £560.00
Weekends (January - December 2025) £560.00
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Dol Wennol
Capacity - Sleeps 8
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Cost of Hire (Per Night)
Mid WeekOffer (January - March & December 2025) £189.00
Weekdays (January to December 2025) £270.00
Weekends (January to December 2025) £270.00
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Dol Gwydion
Capacity - Sleeps 5
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £185.50
Weekdays (January to December 2025) £265.00
Weekends (January to December 2025) £265.00
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Eryr
Capacity - Sleeps 3
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £123.20
Weekdays (January to December 2025) £176.00
Weekends (January to December 2025) £176.00
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Exclusive Venue Hire
Exclusive Venue Hire
Capacity - Sleeps 31
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Cost of Hire (Per Night) £1,585.00
Accommodation Space Prices
Residential 2026
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Plas Baladeulyn
Capacity - 15 people
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Cost of Hire (Per Night) £640.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Dol Wennol
Capacity - Sleeps 8
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Cost of Hire (Per Night) £295.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Dol Gwydion
Capacity - Sleeps 5
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Cost of Hire (Per Night) £292.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Eryr
Capacity - Sleeps 3
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Cost of Hire (Per Night) £195.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Exclusive Venue Hire
Capacity - Sleeps 31
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Cost of Hire (Per Night) £1,767.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
Event Space Prices
Residential 2025
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Modron
Capacity - Seats 40 (circle) or 70 (theatre style).
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £69.30
Weekdays (January to December 2025) £99.00
Weekends (January to December 2025) £99.00
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Arianrhod
Capacity - Seats 35 (circle) or 70 (theatre style)
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £57.40
Weekdays (January to December 2025) £82.00
Weekends (January to December 2025) £82.00
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Goewin
Capacity - Seats 25 (circle) or 30 (theatre style)
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £50.40
Weekdays (January to December 2025) £72.00
Weekends (January to December 2025) £72.00
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Ceridwen
Capacity - Seats 15 (circle) or 25 (theatre style)
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Cost of Hire (Per Night)
Mid Week Offer (January - March & December 2025) £42.70
Weekdays (January to December 2025) £61.00
Weekends (January to December 2025) £61.00
Event Space Prices
Residential 2026
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Modron
Capacity - Seats 40 (circle) or 70 (theatre style).
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Cost of Hire (Per Night) £109.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
-
Arianrhod
Capacity - Seats 35 (circle) or 70 (theatre style)
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Cost of Hire (Per Night) £92.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Goewin
Capacity - Seats 25 (circle) or 30 (theatre style)
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Cost of Hire (Per Night) £81.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
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Ceridwen
Capacity - Seats 15 (circle) or 25 (theatre style)
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Cost of Hire (Per Night) £63.00
Mid Week Discount
These discounts are available for midweek (Monday - Thursday) bookings, valid for two-nights or more.
January - March 2026 - 25%
April - October 2026 - 10%
November - December 2026 - 25%
