Glansevin Mansion is a Georgian house in Llangadog, Carmarthenshire, that organisers can take on exclusive use for corporate offsites, weddings and family gatherings. The dining room seats 70 and a marquee on the back lawn takes a wedding to 100. The house sleeps 42, with 16 more beds in the neighbouring Carriage Rooms.
Seminars and company events
The official site presents the mansion as a house of your own for a team: no other guests and no shared spaces for the length of the booking. The main meeting space works theatre style or with desks and chairs, and other rooms stay free for breakouts and smaller discussions. Overnight numbers are capped, but day delegates are not, so a meeting can be larger than the group staying.
Wi-Fi is superfast and free throughout. Flip chart easels and wall-mounted projector screens are provided, and AV can be arranged through local contractors. Local activity providers can set up team-building programmes in the hills and along the rivers, and the house offers an outdoor swimming pool (unheated), a sauna, a games room with pool table, table tennis and table football for the time between sessions.
Weddings and receptions
Glansevin is a licensed wedding venue. Ceremonies can take place in the hallway, in the dining room or on the front lawn beside the old oak, and a couple whose ceremony is elsewhere can hold the reception here. The dining room seats up to 70, and a marquee on the back lawn brings the total to 100. The booking covers the whole stay, so guests can arrive early and stay on afterwards.
Rooms and capacities
The corporate page lists the rooms with boardroom and theatre figures. The Dining Hall is the only room with exact numbers: 70 boardroom and 100 theatre. The others are estimates from room size and may be adjusted: Drawing Room about 40 and 60, Games Room about 40 and 55, Entrance Hall about 40 and 55, the Cwtch about 20 and 28, Morning Room about 18 and 25, and Housekeeper's Sitting Room about 15 and 20.
Accommodation
The mansion sleeps 42 and the Carriage Rooms next door add 16, for 58 in total. The number depends on how rooms are shared. With single occupancy the house takes 28 (20 in the mansion and 8 in the Carriage Rooms). With singles plus shared twin and triple rooms it takes 53, and with twin and double rooms shared it takes the full 58. Every Carriage Room can be set up as a twin. Beds are made and fires are laid before arrival.
Catering
Glansevin is self-catering. The kitchen is fully equipped to commercial standard, so a group can cook for itself or bring in a caterer; the house can pass on names of local caterers who know it. Drinks are brought by the group, with the drawing room bar and fridge free to use and no corkage.
History and setting
The house was remodelled during the Napoleonic war and has been a family home for two centuries, and a place for gatherings for decades. It stands in the Tywi Valley, in the western foothills of the Bannau Brycheiniog (Brecon Beacons) National Park, with five acres of private grounds around it.
Getting there
The site gives drive times of about 50 minutes from Swansea, 1 hour 45 minutes from Cardiff and 2 hours 30 minutes from Bristol Airport. Llangadog Station is 2 miles away. Dogs are welcome by arrangement.

