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.

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Thinking of a marquee for a special celebration? Our lawns at Glansevin are just perfect!! 🏠🌳🌾 A selection of images here from this summer at Glansevin... varied styles of marquees & wonderf...

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Thinking of a marquee for a special celebration? Our lawns at Glansevin are just perfect!! 🏠🌳🌾

A selection of images here from this summer at Glansevin... varied styles of marquees & wonderful vintage tents.

The lawns are here, the choice is yours!!

Families can also pop up a small number of *overnight tents, if you are struggling to fit your numbers into the 28 rooms at Glansevin, in which we sleep just over 60 guests.

And we of course also welcome any *additional day guests to your function.

If your party numbers exceed the 60 staying at the Mansion we have a comprehensive list of local hotels & B&B's, all a short taxi ride, perfect to suggest to your extra visiting guests.

#mansionparty #planapartyweekend
#styleityourway #hireglansevinmansion

*nominal overnight charge applies
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We have taken some bookings for Christmas Work Do's 🏡🎄🎉
Festive Office Away Stays: Breaks of 2 nights for your team in a beautiful country mansion, exclusively yours!!
** Mid week breaks at Glansevin attract a discounted corporate hire rate **
Call Caroline to enquire: 01550 777121
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Cosy Autumn Evenings 🍂🍁🍃
We have just a few available weekends left during Oct & Nov, on which we are offering a fabulous seasonal discount price🌟20% off🌟
Why not get family & friends together for a country house weekend 🏡
Call or email to check availability 01550 777121
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Our catering kitchen is perfect for catering demonstrations🍳🎂🍤Local business entrepreneur Penny Jones joined Admiral Insurance on their away weekend for some cooking at the Mansion recently #penssupperclub #teambuilding #glansevincookoff #corporateideas #teamawaydays #hireamansion 🏡 ... See MoreSee Less

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Admiral Insurance Away Weekend 🏡
'It's a Knockout' ... Rain & mud should make the inflatables especially fun 💦
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Pedro & Charlotte (and unicorn!) have gone to Portugal now on honeymoon. Sending you guys our very best wishes for a happy future, we loved having you stay at Glansevin!! ... See MoreSee Less

Thank you for a perfect weekend wedding! We are off on our honeymoon 🙂 x

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Our delightful guests, very happy couple Pedro & Charlotte, married on Wednesday in Bath. They've hired Glansevin for a weekend house party to celebrate!! 🏡 🎉 ... See MoreSee Less

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Vintage tents up, beer kegs and hay bales, ladies on ladders with decs in the dining hall... Must be a Glansevin wedding!! 🏡👰🎩⛺️🌳💍 ... See MoreSee Less

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Our guests had something really extra special to celebrate during their family reunion holiday this week; a new arrival!

Little Joseph was born on Monday!! Proud parents Nick & Abi are thinking of a Welsh middle name for him...

Glansevin staff delighted in a cuddle too!!

And we've asked Nick & Abi to have a free weekend on us to hold his 18th Birthday celebrations at Glansevin 🎉
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