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Castle Trematonia | Luxury Country Home with Pool | Cornwall

Castle Trematonia

Antony Passage, Tamar Valley, Cornwall, UK

An island nation unto its own at the coastal edge of Cornwall’s Tamar Valley, Castle Trematonia serves up botanical beauty on the same plate as tales of stolen treasure. Inside, colour and pattern reign, while acres of sub-tropical gardens roll through orchards and twist around turrets, all before leading to the natural pool, sauna and ancient Indian pool house. Once arrived, it will feel impossible to let go of your seat as ruler of this fantastical kingdom.



Peek-a-boo’d behind Cornish palms, and with lofty views of Plymouth Sound, Castle Trematonia is a Georgian manor turned heart of homewares brand, House of Hackney. Within the grounds and house are an abundance of joy-inducing, pleasure-seeking designs and pursuits; a grand staircase smothered in leopard print, ping pong in the gatehouse (where Sir Francis Drake hid bootlegged jewels in the 16th century), banners emblazoned with mantras, and of course, cocktails on a lounger by the pool. Beyond the walls, Cornwall’s hidden corner stretches out, disclosing miles of sand at Whitsand, and hilltop poetry jams in tumbledown barracks.


Celebrating the castle’s history while taking inspiration from the hues which burst into bloom across the grounds, Castle Trematonia is restorative for all who step through its doors. Yet, there's still fun to be found; from the undercover half pipe to the fairytale bedrooms. A house of bodacious proportions, wind around the grand, central hallway through the music room, drawing room, library, and kitchen (all embellished from top-to-bottom in the family's latest imaginative prints) before racing to the first floor to discover nine sumptuous bedrooms with views over the croquet lawn, past the castle ramparts and to the River Lynher beyond.


Once home to famed gardening duo Isabel and Julian Bannerman, and cited the most romantic garden in Cornwall, the current owners have uncovered fruiting banana trees, pineapple hot beds, and borders upon borders of medieval rhubarb, fragrant sweet peas and kaleidoscopic lupins. The tropicana pool area is an obvious place to while away summer days, but venture one must into the Tamar Valley, where walking trails idle alongside kingfishers, and market gardens serve rich coffee alongside their organic fare. To Calstock for cake festivals, and sun-drenched fetes; to Maker Heights for word-of-mouth nights hosted by world-class DJs.

The Facts

  • SleepsUp to 18 guests
    From £7,595 per week, £5,695 per short break
  • Alternative group optionUp to 10 guests
  • Bedrooms and bathroomsThere are eight double bedrooms at Castle Trematonia; two with super king-size four poster beds, six with double beds and one twin bedroom (all found on the first floor). The first floor also includes three family bathrooms with showers, baths and WCs, as well as one shower room and one separate WC. Outside, the pool house features a trio of showers and WCs. Please note when booking the smaller group option guests can select a total of five bedrooms, those not selected will remain closed.
    View bedrooms
  • FeaturesOutdoor natural pool (available May - September), pool house, sauna, indoor skate ramp, fire pit, ping pong table, football goals and trampoline
  • PetsTwo well-behaved dogs are welcome
    Each pet is charged at £60 per week or part thereof
  • Arrivals and departuresArrival Time: 5pmDeparture Time: 10am
  • FamilyBabies and children are very welcome. One travel cot and one highchair are available.
  • PracticalitiesThe country kitchen includes a large gas oven and hob, two full-size fridge-freezers, an industrial dishwasher, and well-stocked pantry. There is a utility room with a washing machine. There is a second butler´s kitchen, which includes an electric oven, fridge, and industrial dishwasher, ideal for bookings with in-house catering. A fully-catered option is available with prices (excluding all ingredients) starting from £975 per day; please enquire for further details. The groundsman resides in a cabin within the extensive grounds, however, will remain discreet and not disturb your stay. If arriving by air, helicopters are welcome to land on the grounds. Please note that the pool and pond are unfenced, so please exercise due diligence if you are travelling with children and dogs. The pool is open between December and September. Pet owners are politely asked to ensure dogs are supervised at all times due to the resident chickens.
  • Homestay includesLuxury welcome hamper of local produce, WiFi internet, TV with Netflix, Sonos sound system, board games, luxury soaps, firewood and kindling to get you started...House book - your property and destination guideDiscover more
  • Private cateringSeeking a celebratory dinner or fully catered escape? Our recommended caterers will work with you to create personalised menus for your stay. Details are shared through our house book on confirming your booking.
  • RetreatsFrom foraging weekenders to crash courses in cold-water therapy, our bespoke retreats bridge the gap between luxury and back-to-nature philosophies. Create a hand-crafted stay that puts connectivity at the fore.
  • Eco-friendlyTwo electric car charging points which can be used at an additional cost
  • RestrictionsParties are considered on prior permission from the owner. Please note, wedding celebrations and bookings of this nature are not permitted.
  • Other informationProperty terms and conditionsFrequently asked questionsView floor plan

Get in touch

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A characterful abode for an inspirational stay
Cosy fireside eves are assured at Castle Trematonia

Prices & Availability

Tamar Valley

Dense, winding woodlands, towering gorges and meandering stretches of gentle river with families of playful otters for company; the Tamar Valley AONB is a leafy paradise with plenty of opportunities for adventure, should one desire.

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Tamar Valley
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Getting there

  • On the Map Castle Trematonia sits on the banks of the Tamar River and the Antony Passage in Cornwall on the leafy outskirts of Saltash.
  • By Car The house is just over four hours from central London.
  • By Train Saltash train station is just one mile away and has regular services to London Paddington with a journey time of approximately three and a half hours. 
  • By Air Both Newquay and Exeter airports are around an hour away from the house, with car hire available in advance. Helicopters are welcome to land within the grounds of Castle Trematonia, please enquire for more details.

From the owner

“We’re all desiring freedom and peace more than ever, and you’ll find it in spades amongst our nine acres of gardens, woodland and orchards.”

From the owner

Cornwall has always been a favourite holiday destination for our family – we love coming here to recharge in nature. One day, on the last day of a summer holiday, we visited the gardens here at the castle, which at the time was famously home to the renowned royal landscape gardeners Julian and Isabel Bannerman.

Walking around the pool area and wildly beautiful gardens planted by the couple set against the medieval backdrop of the castle felt like a dream. It captivated our senses and imaginations; so much so that we were still thinking about it days afterwards. Then, serendipitously, we received a call from a friend who was wondering if we would be interested in taking on a special project in Cornwall… a little place we had just returned from.

After having spent a decade in London, raising a family and working constantly, we decided a move to this unspoilt slipper of the Tamar Valley felt right. Without even having seen the house and bewitched by the gardens alone, we accepted the offer to take it on.

So, with the promise of a slower, simpler pace of life on the horizon, we uprooted ourselves and answered the call of the wild.

The Gormley Family

Owner recommendations

Live like a local, discovering the best hidden gem restaurants, walks and attractions during your holiday in Tamar Valley with an insider’s perspective.

Adventure Bay Surf, Whitsand Bay

To Do

Adventure Bay Surf, Whitsand Bay

Embark on an ocean adventure with one of the UK´s most exciting surf schools. Whether surfing, coasteering or stand up paddleboarding the team are experts at creating an exciting day out.

Rod and Line, Tideford

To Eat

Rod and Line, Tideford

With an ever-changing menu (depending on what comes in on the boats that day), the Rod and Line is an unassuming local foodie icon, specialising in some of the finest seafood around.

Maker Heights

To Do

Maker Heights

Whether a poetry jam or acoustic session in the bespoke studios, or rather a Sunday roast at The Canteen, this community-led venue and creative hub is where local talent is given a platform to shine its brightest.

Tamar Valley

To See

Tamar Valley

Swathes of quiet forests, winding river paths, and rolling hills that seemingly fold onto each other; this stretch of Cornwall is filled with community initiatives, boutique farm shop restaurants and regular, lively festivals in its pocketed villages.

Guest Testimonials

The romance of the place, the beautiful view, the castle, space for us all without feeling like we were on top of each other. The pool was an added bonus! It was also so nice to be able to take our little dog with us.

We had such an incredible time at Castle Trematonia. What a magical place it is. It was certainly very hard to leave. We hope to return and make more special memories here, thank you once again.

We were looking for somewhere unique and special that could sleep a large group of people and Castle Trematonia certainly delivered - it was a truly magnificent experience. Incredible grounds and facilities and we also had the pleasure of having the House Manager on hand whenever we had a question or needed anything. He even gave us a tour of the beautiful and historical grounds.

Castle Trematonia is amazing and you feel there is a story and history everywhere you look. The grounds seem to go on forever, it´s like being in your own little fairy tale. The pool area is very special and again has character in it´s design. A really interesting home that has everything you need for a big family get together.

Unique extras

From private chefs to luxury at-home spa therapists and adrenalin-fuelled retreats, once you’ve booked your stay we’ll introduce you to our owner-recommended suppliers to create a truly bespoke, memorable escape.


Below are a selection of features in which Castle Trematonia and Unique Homestays has appeared. If you would like to feature the property in an editorial capacity, please contact the marketing team on +44 (0)1637 882014.

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Disclaimer: These particulars, whilst believed to be accurate, are set as a guideline so should not be relied upon as a statement of fact. The photographs show aspects of the property at the time they were taken and it should not be assumed that the property remains precisely as displayed. If there are points of particular importance that need clarifying before you book, please contact us.

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