An event venue with floor-to-ceiling windows, high vaulted ceilings, and leafy views at Trigonos.
An event venue with vaulted ceilings, a large gable window, and a textured wall hanging at Trigonos.
An event venue with floor-to-ceiling windows, natural light, and mountain views at Trigonos.
An event venue with leather sofas, a fireplace, and large windows overlooking greenery at Trigonos.
An event venue with wicker armchairs, colorful cushions, and a woven wall hanging at Trigonos.
An event venue with pink flowering bushes and a slate exterior wall near the entrance at Trigonos.
A hallway with cream walls, a framed abstract figure artwork, and a wooden stair railing at Trigonos.
A country house with large windows and angled stone sculptures on the lawn at Trigonos.
A country house with a ceramic vase of wildflowers on a table and garden views at Trigonos.
A kitchen workspace with dough balls on a floured surface and a rolling pin at Trigonos.
Freshly baked pastries on parchment-lined baking trays in the kitchen at Trigonos country house.
A country house greenhouse with raised garden beds and a person watering plants at Trigonos.
A country house with three fluffy chicks sitting on newspaper and scattered leaves at Trigonos.
A country house with a decorative Trigonos sign on a white textured exterior wall at Trigonos.
A country house bathroom with a white bathtub, heated towel rail, and herringbone-patterned floor at Trigonos.
A floor plan layout showing room names, restrooms, library, and kitchen areas at Trigonos.

Event Venue at Trigonos

Event Venue
·
Whole venue
Plas Baladeulyn, Nantlle, Caernarfon, LL54 6BW –
Llanllyfni
Up to 60
seats
Up to 75
standing
Venue offers catering
External catering not allowed

About this space

Our four event spaces are full of natural light, are on the ground floor and open directly onto a wonderful landscape. They accommodate from 10 to 35 people. Two additional break-out rooms for 6 to 8 people are also available. In addition to the indoor spaces, there are also two lawns, a walled garden, a woodland shelter and eighteen acres of estate to enjoy within the stunning backdrop of Eryri National Park.

Prices

Monday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Tuesday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Wednesday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Thursday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Friday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Saturday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Sunday
8:00 – 18:00
from £125 hire fee
Per session
8:00 – 18:00
from £125 hire fee
All prices include VAT.
Best price guarantee

Capacity

  • Standing
    up to 75
  • Dining
    up to 35
  • Theatre
    up to 60
  • Boardroom
    up to 25
  • Cabaret
    up to 20
  • U-Shaped
    up to 25
  • Classroom
    up to 40

Catering and drinks

In-house catering available Venue can organise food and drink
Halal menu
Extensive vegan menu
Extensive vegetarian menu
Extensive gluten-free menu
Complimentary water Complimentary refreshments (such as water, tea, or coffee) for guests at no extra cost
Complimentary tea and coffee
British cuisine
No external catering allowed
Approved caterers only
No alcohol provided by the venue
BYO alcohol allowed A fee is charged if you bring your own alcohol
Corkage fee for BYO alcohol

Facilities

  • Wi-Fi available
  • Projector
  • Flatscreen TV
  • Whiteboard
  • Flipchart
  • Conference call facilities Equipment for video or phone conferencing during your event
  • Natural light Room has windows or a skylight, so daylight comes in
  • Storage space Place where clients can store items during their event
  • Quiet space
  • Accommodation is available on-site On-site accommodation
  • Free parking is available on-site (30 spaces)
  • Free on-street parking
  • Flower Garden
  • Lake
  • Woodland Shelter
  • Unavailable: PA system / speakers
  • Unavailable: Air conditioner

Music & sound equipment

  • Play your own music Venue allows playing your own music
  • Bring your own DJ Venue allows bringing your own DJ instead
  • Space has noise restriction after 23:00

Accessibility

  • Wheelchair accessible Step-free access throughout the venue for wheelchair users
  • Accessible toilets Toilet(s) adapted for guests with disabilities
  • Ground level Guests can enter without using stairs
  • Accessible parking spot available
  • Unavailable: Lift to all floors
  • Unavailable: Cargo lift

Rules of the space

Allowed events

  • No promoted and ticketed events allowed
  • No wedding licence
  • No Temporary Event Notices (TENs) available

Host rules

No smoking in the building

Cancellation policy: Standard 30 day

Show cancellation details

About Trigonos

Trigonos is a Tagvenue Partner. This business has registered with Tagvenue and agreed to our venue partner standards.

Location

Location map

Meet your host

Matthew Jones
Member of Tagvenue since May 2025
100% Response rate
100% Response rate

Contact venue managers directly on Tagvenue. Keep all event communication on the platform for a secure, seamless booking.

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