Set in the western foothills of the Brecon Beacons, Plas Glansevin is a secluded Grade II-listed Georgian Mansion and Annexe that provides an elegant and unique environment for any event, be it weekend getaway, party, wedding, or corporate break.

Houses on the splendid scale of Plas Glansevin are few and far between. Set in ten acres, Plas Glansevin comprises a Mansion House and Annexe, which can accommodate parties of up to 56. It is thought that a dwelling has been sited at Plas Glansevin for about a thousand years. The 800-year-old oak tree that dominates the front lawn has long been a part of the site’s history and is often used as the perfect setting for weddings and blessings.

Welcome to Plas Glansevin

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We had a fantastic wedding at Plas Glansevin. So many people spend so many months planning their wedding and then it’s all over in a few hours. we feel very lucky that we had a whole weekend – not just a wedding, a football game, a bouncy castle, a table tennis tournament, a pool tournament, a disco, a quiz night and lots and lots of nice things to drink and amazing food by Charlotte. The Mansion and the Annexe were absolutely perfect, our family and friends all had comfortable rooms and loved the house. The children had an amazing time chasing each other round the house. There was lots of laughter all weekend and a few tears when it was time to go. It really was a weekend to treasure, and everything we had hoped for. Thanks so much for all your help, and for having the house so perfect for when we arrived. Best wishes and many many thanks.

Helen and Dan

Picture of team building exercise outdoors

Corporate Team Building

Plas Glansevin offers complete privacy and seclusion in a versatile environment that will inspire your team, providing an ideal location for strategic planning, team building, management retreats, outdoor oriented programmes, and fun getaways.

Main meeting rooms will house theatre-style layouts (30+), and up to eight breakout meetings can be held at any time in smaller reception rooms throughout Plas Glansevin. The main meeting room can be laid out to your specification with flip charts and wall-mounted projector screens. Plasma screens and digital projectors may be rented on your behalf from local specialist contractors. We also have complementary wireless broadband running throughout Plas Glansevin.

Picture of the staircase in the entrance hall

About Us & Our History

It is thought that a dwelling, originally known as Llansevin, has been sited at Plas Glansevin for about a thousand years. There is a story in Welsh legend that Marchel, mother of St. Brychan Brycheiniog, king of the Kingdom of Brycheiniog (Brecon), whilst on a journey to Ireland with an escort of 300 men, rested for one night at “Llansevin”.

Harvey Peters is the owner of Plas Glansevin and the founder of Minerva Consulting which has been based here since 1985. Harvey works in the UK and internationally, facilitating leadership and team-building programmes. Harvey’s wife, Osanna Peters, is responsible for the interior design at Plas Glansevin, collecting artwork and furniture from her travels across Africa, Europe, and South East Asia.

Picture of couple taking the wedding vows

Weddings & Parties

Plas Glansevin makes the ideal location for your celebration, whether it be anniversary, reunion, birthday party or wedding. Our Grade II-listed Georgian Mansion House provides an elegant yet bohemian setting . The beautiful grounds offer a stunning backdrop for group and family photographs.

We have a wedding licence, you can also have a wedding celebrant who will compose a blessing for you to be held at Glansevin. We have had many wonderful weddings here and the buildings and the grounds will really lend themselves to whatever style of celebration you are planning. We often have services under the majestic 800 year old oak tree on the front lawn of the house. We also have many other grand rooms to choose from. We can put you in touch with local florists, hairdressers, musicians, etc.

Facebook Posts

Glansevin from the skies 🌳☀️🌲

The grounds are simply wonderful; wether it's a marquee or a teepee, bouncy castle or a rodeo bull, the Glansevin lawns are just perfect for having fun and making memories.

A self-cater mansion to yourselves for the weekend, just you, your family and friends!!

Give us a call and if you are booking full capacity ask for a little February discount to chase the Winter blues away!! 🌳🏤🌳
#weekendgetaway #mansionhire #planaparty #nocorkage #dogfriendly #yoursfortheweekend #welshmansion
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A stunning winter wedding in December at Glansevin, shot by Michelle Huggleston Photography Interested in having a wedding or event with us when the air is crisp and the log fires create a perfect cosy atmosphere?
Please do get in touch:
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Rewards weekend at the Mansion for Forever Elite; a marquee created extra space with awesome sparkly ceiling ✨
#workhard #partyharder #teamspirit
Happy weekend everyone!! 🎉
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What secrets lie in store? 🏡
Until our guests arrive to dress their marquee (complete with cosy corridor to reach it from our dining hall) we have no idea!!
#mansiontohire #selfcater #partyplans #styleityourway #makeityourown #weekendsurpriseparty 🎉🏡 🎉
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Corporate away day? Team building? Annual conference? Look no further than Glansevin. For over 15 years we've been an exciting and unique venue for established companies and small businesses to hold their events. Read all about having your event with us here: #corporateretreat #teambuilding ... See MoreSee Less

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Our beautiful drawing room, complete with bar...Imagine settling into the sofas to catch up with old friends... ♥️

Glansevin... the perfect place to make memories and to explore old ones...

#hireamansion #weekendhouseparty #cosygatherings #welshgetawaybreak #familyandfriends #exclusivehire #yoursfortheweekend 🏡
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The oak tree that dominates the front lawn at Glansevin is over 800 years old.
It has been the setting for blessings, weddings, baptisms, and beautiful outdoor events for the past 15 years. There's nothing quite like seeing the spring bulbs that come up beside the roots or the amazing range of wildlife harboured in the branches!
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Our banquet hall, charmingly rustic; decorate it your way!!
#glansevin #dineinstyle #nocorkage #hireamansion #planyourparty 🏡
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Whilst the budding of spring bulbs and the warmth of summer sun may feel a long way away, at least you can start planning your spring or summer event or wedding at Glansevin now!

April to September is our peak time of weddings, corporate events and country breaks with family and friends. If you're interested in having an event with us during those high-peak months, make sure you get in touch with us for availability and more info as soon as possible.

We look forward to hearing from you - drop us a line at
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