Mill House
10
guests
5
bedrooms
5
bathrooms
Mill House is a restored 260-year-old grain mill that still features its original cogs and grinding stones, bringing a sense of heritage to a practical modern space. Sitting at the heart of the estate, it includes five en-suite bedrooms, a fully equipped handmade kitchen and two living areas centred around a double-sided wood-burning stove, sauna and hot tub.
A covered walkway leads directly to The Piggeries, giving groups their own private dining area, bar and treatment room for dinners, wellness sessions or evening events. Outside, the house has an arbour, fire pit, the Heartwood Sauna, an outdoor shower, river steps for wild swimming and access to a three-acre conservation area with private walking trails. Mill House is perfect for all kinds of gatherings from celebrations with friends and family, to executive retreats, creative strategy sessions and senior leadership meetings.
Key Features
- Celebration
- Corporate
- Countryside
- Dog-Friendly
- EV Charging
- Event Friendly
- Family Friendly
- Fire Pit
- Garden
- Health Retreat
- Hikes & Walks
- Hot Tub
- Log Burner
- Luxury Stay
- Outdoor dining
- Outdoor Seating
- Private Parking
- Sauna
- Wild Swimming
The Home
Nestled in a serene Welsh valley, this unique mill conversion blends historic charm with modern functionality, offering inspiring spaces for corporate away days, leadership retreats, large group strategy sessions and family gatherings in a breathtaking setting.
Key features
- 5 en-suite bedrooms (Sage, Wren, Rosalind, Agnes, Moss)
- Handmade gourmet kitchen + 10-seater dining table
- Double-sided wood-burning stove & breakout living spaces
- Exclusive Piggeries venue: Private dining area, bar, treatment room (via covered walkway)
- Outdoor arbour, fire pit, wood burning hot tub, Heartwood Sauna (adults only), outdoor shower, river steps for wild swimming
- 3-acre conservation area + private walking trails
Steeped in 260 years of history, Mill House is a lovingly restored grain mill where heritage meets contemporary design. Original cogs and grinding stones create striking focal points for breakout discussions, while bespoke interiors, a handmade kitchen, and the Piggeries, a unique dining and wellness space, collaboration and rejuvenation. Set in a dramatic valley near Trefeglwys (between Llanidloes and Machynlleth), it spans ten acres of meadows and woodland adjacent to a 150-acre working farm. Exclusive access to the Piggeries via a covered walkway includes a dining area, bar, and treatment room, perfect for team meals, evening networking, or wellness sessions.
Step inside to character-rich spaces where ancient history inspires modern thinking. Original mill cogs and grinding stones blend with contemporary interiors, ideal for informal huddles. The stone hallway leads to a boot-room for practical storage after outdoor team activities, plus a downstairs cloakroom with striking wallpaper.
The handmade kitchen is a standout, equipped for catered working lunches or group catering, flowing into a generous dining area with a 10-seater table for strategy meetings. Two living spaces share a double-sided wood-burning stove, with deep sofas perfect for debriefs or downtime.
Outside, a designed arbour by orchard apple trees hosts alfresco dining, or huddle around the fire pit for cosy evening storytelling. The handcrafted Heartwood Sauna (adults only), outdoor shower, and river steps provide spa-like wellness. Explore the three-acre conservation area and private walking paths through fields and woodland for guided hikes
The Piggeries – Private Dining and Wellness Space
- Private dining area with dedicated bar
- Open log burning at the heart of the space
- Treatment room for in-house spa treatments
- Covered walkway from Mill House
- Perfect for team evenings or family gatherings to unwind and celebrate!
Once home to cart horses, pigs, and sheep, this brick-lined space with original stone floor is now a rustic yet stylish hub for corporate gatherings. Accessed via covered walkway from Mill House, it features a wood-burning stove, generous dining area, and bar – ideal for feasts, celebrations, or breakout sessions. A dedicated treatment room offers serenity for massages or quiet reflection, with soft towels and massage table (book private therapists as needed).
The Estate
For the full details of the estate, please click on the following link to the Original Hideaways Homepage: Original Hideaways
Original Hideaways is a luxury rural retreat set in a quiet valley between Llanidloes and Machynlleth. The full estate includes accommodation for up to 20 guests (29 from Spring 2026), workshop and event spaces for 25–50 guests, wellness facilities and access to a 150-acre working farm. It’s designed for corporate away days, leadership retreats, team-building workshops and strategy sessions where groups need a self-contained base with indoor meeting areas and outdoor space to reset.
Shared facilities include private dining, a wellness treatment room, the Heartwood Sauna, river access for wild swimming, a fire pit, a wood-fired Argentinian grill, EV charging, walking trails, a three-acre conservation area and on-site event venues including the Grain Loft and The Piggeries.
Ideal for: events, wellbeing and creative retreats, corporate away days, team-building workshops, and large group accommodations (10–50+ guests).
- Event capacity: 25 – 50 guests
- Sleeping capacity: 20 guests (29 guests from Spring 2026 across 4 homes)
- Bedrooms: 9 en-suites + 1 bedroom with adjacent bathroom across 2 houses (expanding to 14 bedrooms from Spring 2026)
Shared facilities on-site: dedicated events spaces, private dining & bar space, wellness treatment room, wood-fired sauna, river access for wild swimming / fishing / paddleboarding (nearby lake), adjacent 150-acre farm, EV charging, wood-fired Argentinian grill terrace, log burners, fire pit, meditation circle, farm animals, walking trails, bike hire and much more.
Event spaces: access to two entertainment & event spaces – The Grain loft providing dedicated retreat and workshop space for 25 – 50 guests, and separate private dining and wellness space The Piggeries.
To book: the whole estate can be booked together for 20 guests (29 guests from Spring 2026) or individual homes can be booked for up to 10 guests.
The Houses
If more space is needed, the neighbouring and equally beautiful home the Hay Barn can be booked alongside the Mill House to host up to 20 guests in total. And from Spring 2026, 2 further incredible homes will be available to book in the estate that can accommodate up to 29 guests.
The Event Spaces
The Grain Loft – Event Space
Perfect for: Every type of retreat space, yoga sessions, corporate strategy sessions and evening imitate celebrations.
Key features
- Dedicated event space for 25 – 50 guests
- Ground floor events space with adjoining kitchen, reception room
- Outdoor entertaining space, terrace and wood-fired Argentinian grill
- Private studio office
- Fully stocked professional kitchen with modern appliances
- State-of-the-art audio-visual equipment
The Grain Loft is the signature event space, thoughtfully designed as a versatile haven for retreats, workshops, team-building sessions, creative gatherings, and intimate celebrations. Perched atop the historic grain store, this fully flexible venue boasts soaring high ceilings that create an airy, inspiring atmosphere, easily accommodating 25+ guests in a variety of layouts – from theatre-style seating for presentations to circular arrangements for interactive discussions or banquet setups for dining experiences. Its adaptable design, combined with universal facilities including state-of-the-art audio-visual equipment, high-speed Wi-Fi, and modular furniture, ensures it can seamlessly host any type of event, whether a yoga and mindfulness retreat, a corporate strategy offsite, an artistic workshop, or a private dinner party.
Step out onto the spacious private terrace, where the fresh countryside air and unobstructed vistas provide the perfect backdrop for outdoor breaks, al fresco networking, or sunset cocktails, blending indoor comfort with the tranquillity of the outdoors.
Inside, the space is equipped for every need: a fully stocked professional kitchen with modern appliances, ample counter space, and commercial-grade amenities allows for on-site catering, cooking demonstrations, or self-prepared meals. Complementing this is an authentic outside wood-fired Argentinian grill, ideal for crafting flavourful barbecues, interactive grilling sessions, or rustic feasts that highlight seasonal, local ingredients. For those requiring focused work or quiet moments, a private studio office offers a secluded nook with a desk, ergonomic seating, and natural light – perfect for one-on-one coaching, administrative tasks, or virtual meetings.
From Spring 2026 there will be a self contained 1 bedroom apartment perfect for hosts/ retreat leaders.
Sleeping Arrangements
Ground Floor
Bedroom 1 (Moss): Superking size ensuite bedroom.
Ground floor bedroom with walk in shower for accessibility
First Floor
Bedroom 2 (Wren): king size ensuite bedroom.
Bedroom 3 (Rosalind): king size ensuite bedroom.
Bedroom 4 (Agnes): king size ensuite bedroom.
Bedroom 5 (Sage): Superking size ensuite bedroom.
What's Included
Accommodation
5 en-suite bedrooms:
- Sage: Soft green tiles, meadow views
- Wren: Compact, gentle blue tiles
- Rosalind: Warm yellow walls, pink tiles, views over Acer tree and paddocks
- Agnes: Gable-end retreat with writing desk, meadow and riverside views
- Moss: Garden-level access, cool tones, walk-in shower, mill wheel markings
Living & Dining Spaces
Handmade gourmet kitchen
10-seater dining table
Two living spaces sharing a double-sided wood-burning stove
Boot-room for storage
Downstairs cloakroom with decorative wallpaper
Original mill cogs and grinding stones as architectural focal points
The Piggeries – Private Dining & Wellness Space
Private dining area with bar
Open log-burning fireplace
Treatment room for spa or massage sessions
Covered walkway connecting to Mill House
Ideal for team dinners, family and family celebrations, or wellness sessions
Outdoor & Wellness Facilities
Outdoor arbour (ideal for brainstorming or alfresco dining)
Fire pit for starlit reflection or team gatherings
Heartwood Sauna (adults only)
Wood fired hot tub (heated for arrival – £40)
Outdoor shower
River steps for wild swimming
Three-acre conservation area
Private walking trails through fields and woodland
Activities & Experiences
Corporate away days, leadership retreats, team-building sessions
Guided walks and farm tours
Farm animals for ice-breaker interactions and farm-to-table storytelling
Outdoor team-building activities and seasonal nature experiences
Technology & Practical Amenities
EV charging on-site: 1x 7 kW/32 amp charger, 2x 13 amp chargers (up to 3 vehicles at once)
High-speed internet
Covered walkway connecting Mill House and Piggeries
The Grain Loft – Event Space (additional cost)
Dedicated event space for 25–50 guests
High ceilings and flexible layout for retreats, workshops, corporate strategy sessions, yoga, and intimate celebrations
Outdoor terrace with unobstructed countryside views
Wood-fired Argentinian grill for outdoor dining and interactive cooking
Fully stocked professional kitchen with modern appliances
State-of-the-art audio-visual equipment
Private breakout studio for focused work or coaching sessions
Booking Policies
House Rules
Pets welcome
Children welcome
No parties
No smoking
Access
Check-in
from 4:00pm
Check-out
from 10:00am
Self check-in
Booking Policy
30% Refundable deposit required to secure your booking
Balance due 60 days before arrival
Cancellation Policy
Cancel at least 90 days before your check-in and receive a full refund of your deposit. If your check-in date is under 90 days away, you will no longer be eligible for a refund of your deposit. Read full terms & conditions.
Make your stay extra special
We are always on hand to offer assistance and personalised concierge services to make your stay at our holiday home truly special. Book with us and enjoy a range of additional services, such as private dining and yoga classes, all tailored to enhance your experience.
Check Availability & Pricing
When
Please note: There is a security deposit required during or after the booking process depending on the property.
Best Price Guarantee
We guarantee you’ll always get the best price online when you book your stay directly on our website.
The Location
- Mid Wales
- Nearest towns: Llanidloes (10 min), Machynlleth (15 min)
- Day trip highlights: Llyn Clywedog Reservoir, Aberystwyth National Library, Aberdyfi Beach (Eryri/Snowdonia)
- Adventure access: Cambrian Mountains, Snowdonia National Park
- Transport: 2.5 hrs from Birmingham, 3 hrs from Manchester
- Train: 6km away from Caersws train station, which is under two hours from Birmingham and just one change from London Euston.
In a breathtaking Mid Wales valley outside Trefeglwys (between Llanidloes and Machynlleth), the property is rich in history, culture, and adventure – perfect for both group retreats and meaningful time with family and friends.
Explore onsite rolling meadows, rivers, and woodland walks for team-building or leisurely family rambles in every season. A short drive to the Llyn Clywedog reservoir offers picnic spots, wildlife watching, and peaceful shore walks – just as suited to reflective off-site sessions as to relaxed days out with loved ones.
Machynlleth (the ancient Welsh capital) has quirky shops and markets to explore together, while Llanidloes offers a friendly high street and gentle River Severn routes. Day trips to Aberystwyth (home to the National Library of Wales) or Aberdyfi (a beautiful white-sand beach in Eryri / Snowdonia) bring coastal inspiration for groups, families, or friends alike. With the Cambrian Mountains and Snowdonia close by, endless outdoor adventures await – from energising corporate activities to memorable shared experiences.
Nearby
Supermarket
Bradleys - 4.9 miles
Pubs, Restaurants & Bars
Arthurs Restaurant & Bar - 1.6 miles
Town Centre
Llanidloes - 4.8 miles
Attraction
Llyn Clywedog Dam - 7.3 miles
Train Station
Caersws - 4.7 miles
Bus Stop
Airport
Mid Wales Airport - 23.4 miles
Airport
Manchester Airport - 99.1 miles
FAQs
What’s included in the venue hire?
The site is available for complete hire – with our day event space, the Grain Loft, alongside our two accommodation properties, the Mill House and the Hay Barn, and our communal dining area and treatment space in the Piggeries; all of which comes with the 10 acres of surrounding land. The event space in the Grain Loft can be hired separately for day workshops.
How many guests can the venue accommodate?
Our accommodation features 10 double en-suite bedrooms, all with king size beds – we can accommodate 10 people based on single occupancy rooms, or 20 people based on shared beds. Our large event space can accommodate 25+ guests for workshops.
Do you offer catering or can we bring our own chef?
We partner with talented local chefs who can provide catering for retreats and events with themes tailored to your offering. If you have your own chef, they will have full use of our on-site kitchens and dining areas. Each property comes with a fully equipped kitchen, with tea, coffee and water, for guests to use. If you require additional culinary offerings to support your retreat programme, we will happily connect you with our partners.
What types of spaces are available for workshops or group sessions?
The Grain Loft is our event space, where retreats and workshops are hosted. A fully flexible space with high ceilings, the Grain Loft can accommodate 25+ guests and has the scope and universal facilities to host any type of experience. Outside, the Grain Loft offers an al fresco Argentine grill area for cooking up a summer feast, and the Meadow Terrace provides an outdoor location for yoga and wellbeing activities with view of the surrounding ancient hills. Other facilities on site include a treatment room, set up with towels and a massage table, a fire pit, a meditation circle, a Welsh-made wood-fired sauna situated next to a natural river plunge pool and outdoor shower with breathtaking views.
Is the Original Hideaways site accessible?
The event space at the Grain Loft is fully accessible with wheelchair friendly gravel gardens, ramps and an accessible toilet on the ground floor. We are a steeply sloping site so access to the lower part of the site, where the accommodation is located, is via car. The Mill House has an accessible bedroom on the ground floor, with accessible gardens at the rear.
Are there any restrictions on the type of retreat we can run?
We are in a quiet rural area so would ask all retreat guests to consider our neighbours. Alcohol provision is for the retreat host to manage. Please be considerate from dusk to dawn to suit all our animal friends on the farm and the site.
What’s your pricing structure and minimum booking duration?
We have a minimum stay of two nights for a residential retreat across the whole site. Day only retreat hire for the Grain Loft is available. For a tailored estimate, please contact us to discuss pricing for your event. Please note we only take bookings from the retreat provider and won’t sell tickets directly for the retreat itself.
Is there WiFi and AV equipment on site?
Yes, we have full WiFi access across all properties, however would encourage taking time to encourage the beautiful natural setting if you can!
Audio Visual equipment is fully set up in the Grain Loft with an integrated media screen available for presentation purposes and surround sound via Sonos. Please note the media screen is concealed, so for more wellbeing orientated activities, you will not have a large screen featured permanently on the wall! We can help with technical set up for retreat bookings.
What eco practises do you have in place at Original Hideaways?
We take our earth footprint seriously and we care deeply about the land, as our family has lived and farmed our location since 1945. The 10 acres of fields that surround the retreat venue are organic and free of any pesticides. We have renewable energy on-site, including solar panels; our utility suppliers provide green energy, and our tariffs guarantee renewable energy only. We have more than 10,000 litres of rainwater harvesting on-site for all external irrigation. We’ve sourced our materials throughout the build of the retreat location from local suppliers, and we encourage collaboration with local suppliers for the delivery of any retreats and events that are hosted at the venue as well as shopping locally for food ingredients wherever possible.
I need additional classes or offerings to support my retreat programme, can you help?
We partner with local practitioners who offer therapeutic treatments including massage therapy, acupuncture, reflexology, meditation, chocolate tasting mindfulness (yes really!) and reiki. We also offer outdoor activities including; wild swimming, paddleboarding, fishing, off road biking and hiking. We partner with talented local chefs who provide catering for retreats and events. If you require additional classes such as print making or a local offering to support your retreat programme, we will happily connect you with our partners.
Are there local attractions or activities we can include in our retreat itinerary?
The retreat location is set in 10 acres of private land and adjacent to our 150-acre working farm. From the top of the valley, where the cattle graze gracefully, to the woodland areas where the badgers burrow and the buzzards and red kites fly high – the surrounding land allows you to explore, reconnect and rewild.
Our land includes a three-acre conservation area of rewilded woodland that hasn’t been touched for over 50 years. Home to badgers, foxes, otters, native flora and fauna, it is a peaceful area of nature with the river Trannon running by its side, and it’s open for guided woodland walks as well as providing the most serene meditation circle.
Local beauty spots, just around the corner from your bespoke retreat location, include Hafren Forest and the Source of the Severn; the Source of the River Wye and the slopes of Plynlimon – the highest peak in Mid Wales; the Cambrian Mountains, Devil’s Bridge Waterfalls, the Llyn Clywedog Reservoir and Dam, and Aberdyfi. Also known as Aberdovey, Aberdyfi is one of Southern Snowdonia’s most attractive coastal villages and it’s where the mountains meet the sea at the mouth of the River Dyfi.
What is The Piggeries and how is it connected to Mill House?
The Piggeries is a private dining and wellness space with its own dining area, bar and treatment room, connected to Mill House by a covered walkway, making it easy for groups to move between the two spaces for meals, sessions and evenings together.
What wellness facilities are available on-site?
On-site wellness facilities include the Heartwood Sauna, an outdoor shower and river steps for wild swimming, alongside outdoor spaces such as the arbour and fire pit for relaxing as a group.
Is the Heartwood Sauna adults only?
Yes. The Heartwood Sauna is adults only.
Can you go wild swimming on-site?
Yes. There are river steps on-site for wild swimming.
Is Mill House dog friendly?
Yes. Pets are welcome at Mill House.
Is there EV charging on-site?
Yes. EV charging is available on-site, with 1x 7 kW/32 amp charger and 2x 13 amp chargers, allowing up to 3 vehicles to charge at once.
What are check-in and check-out times, and is self check-in available?
Check-in is from 4:00pm, check-out is from 10:00am, and self check-in is available.
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