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

Make Your Booking Today!

Specify how many guests and when you would like your booking to begin.

Check the Calendar for availability.

Download Our Brochure & Booking Form

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

We have three perfect comfy sofa rooms....

Two small snugs: cosy duvet & film afternoon? Or for gossipy catch ups... with how many glasses of wine?!

And a superb spacious drawing room with open fire... and your own private bar 🍾🍾🍾

Bring on the ultimate cosy weekender 🌟🏤
... See MoreSee Less

View on Facebook

Self-cater holidays at Glansevin.. 🏤🌳Exclusively yours, for a week or a long weekend, we can accommodate from 24 to 60 people in our 28 bedrooms, many en-suite ❄️25% off Feb 2018 ❄️
📞01550 777121
#holidayideas #feb18 #holidayinwales #selfcatermansion #februaryhalfterm #familygroupholidays #glansevin #welshbreak #exclusivehire 🏤🌳
... See MoreSee Less

View on Facebook

🎄🎄Christmas Party Season🎄🎄

We have some dates in December available on short notice discount
💸💸💸💸 30% off 💸💸💸💸

One night hire available (mid week)
We can accommodate from 24 - 58.
🎄🎄Christmas treat Ideas!! 🎄🎄

☎️01550 777121
enquiries@glansevin.com
... See MoreSee Less

View on Facebook

Pumpkin pie?? Pumpkin and marrow soup??🎃🍆Retreat group arrived for the weekend... #cookingupafeast #autumnretreat #relaxandunwind #treatweekend #harvestfeast #mansionretreat #exclusivehire
🏤🎃🍂🍃🎃🌿🍁🏤
... See MoreSee Less

View on Facebook

It's never too early to think of Christmas!!🎄
Exclusively yours for 2018??? 🎉🏤🎉
(one lucky family already has 2017 in the bag)
Book now, secure an early bird booking discount... 🐦☑️
... See MoreSee Less

View on Facebook

Throwback to Summer.. vintage tricycle ice creams on the lawn.

p.s. that's Meg, part of our wonderful housekeeping team, she often helps guests at the wedding weekends;
An ice cream break!! 🍦🍦🍦
... See MoreSee Less

View on Facebook

Party planning? We've got it covered:

Take from 30 to 70 family + friends, mix together in a mansion house, add a top class caterer, a bar (no corkage!), fabulous music + some fun ideas:

A wine or gin tasting evening? Or a pop-up casino? Perhaps even a Murder mystery evening?

The perfect weekend house party 🎉
Style it, create it, love it #Glansevin 🏤
... See MoreSee Less

View on Facebook

Hiring sole exclusive use of Glansevin is a brilliant choice as a weekend house party idea 🏤🎉
At around £110-£150pp for 2 nights...
(cost dependant on group size)
Why not!! 🏤🎭🎤🎈🎁🎊

Sleeping up to 70 and with a superb flagstone dining hall for partying, it's a delightful Welsh gem of a house, steeped in history. www.glansevin.com
... See MoreSee Less

View on Facebook

We had this fabulous review recently!!

Rest assured from our various reviews that the Glansevin team will look after your booking and prepare for you a wonderful exclusive Mansion house for the perfect party weekend!!
... See MoreSee Less

A beautiful venue for my daughter's wedding. Amazing setting, amazing service and such a fun weekend. Many thanks to Caroline and her team and in particular, the lovely Rhiannon and Meghan - we would...

View on Facebook

Keeping an eye: new portico plants🌻 #officedogruby #tubsandshrubs #mansionflowers #officedogs #petsatwork #dogfriendlyvenue #exclusivehiremansion #glansevin #petscometoo #holidayideas
#bringyourdogonholiday 🐺🏤🌳
... See MoreSee Less

View on Facebook