Sky Den | Treehouse in Northumberland | Canopy & Stars

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Sky Den - Treehouse in Northumberland

Last cache: 17:52:13, Wednesday 28 September 2016

Calvert Trust Kielder

Suitable for children of all ages

Pets welcome

Children and one dog welcome. There is a surcharge of £50 per pet per stay.

George Clarke’s very own dream treehouse project: an accessible design delivering a whole new perspective on the great outdoors!

The Sky Den was built by William Hardie Designs with connoisseur of creative and quirky constructions George Clarke, throughout the second series of his imagination-catching Channel 4 programme George Clarke’s Amazing Spaces. In an original move, this treehouse is composed of three different shapes that each blend together the best of outdoors and indoors, taking in everything from the red squirrels in the trees around you to the sweeping river just below. 

The square is the central point of the treehouse and your main living space, with glass doors opening onto a wide balcony with captivating views over the river. Inside, George has exploited his small spaces expertise to create an impressively versatile space, with a functional kitchen in a clutter-phobe’s paradise of fold-away furniture (including two single beds) and wet room accessible from the deck. Then there’s the circle, a simple viewpoint of corrugated iron, where you can have a picnic and brew up a cuppa the old-fashioned way over the wood-burning stove. Finally the triangle is the loft space of your already lofty suite, accessed by steps from the outside deck. In good weather, when there is no wind, it's possible to open the whole roof for an unobstructed view of the gold tier Northumberland Dark Skies.  

It’s not just the structure the makes this place amazing. Set in the heart of the Calvert Trust within the Kielder Water & Forest Park and a short walk from the main activity centre, this will enchant wildlife lovers and adventure-seeking families alike; the Calvert Trust Kielder has 30 years of experience in providing unforgettable, accessible and fully inclusive activity holidays to people of all abilities. As well as sharing the forest with around 50% of England’s native red squirrel population and two regular pairs of osprey, you’ve got watersports, rope courses, climbing, orienteering and much more, literally on your doorstep. Book onto an activity day or discover England’s largest forest and its many woodland trails for yourself.

The Sky Den is designed to enjoy nature and the elements. With its opening roof and an open sided deck platform, as one would expect, at certain times of the year when Northumberland can get a bit chilly, it can be a bit more of an outdoors experience too! So remember to bring warm clothes and get involved in celebrating nature and outdoor living, year round in this truly incredible structure...

See 'Essentials' for more info on accessibility. 

Our guests say...

Beeeaaaauuutiful!! Can barely put into words how much we enjoyed our stay up in the trees



what a fantastic place! Ingenious, comfortable, close to nature.



We arrived in the sunshine on 27th April. My 70th birthday treat. We enjoyed setting up the living area, opening up the roof, and sitting outside listening to the water and watching the birds. We cooked our own meal that evening, It was good to find out the smoke alarms worked as our duck breasts sizzled in the pan. The clouds soon gathered and we did not see the stars that we were hoping to see. I woke just after 1 o'clock and was amazed to see a clear sky and the stars shining so brightly. We went out the next day to explore Kielder castle and the area around it and while having our picnic lunch it began to snow. The Sky Den looked lovely through the falling snow as we returned and we were soon warm and snug in the living area. We went down to the dining room in the Calvert Trust and enjoyed our evening meal there. It did stop snowing during the evening but we woke to more snow in the morning.



This was a break to celebrate our engagement and it was perfect especially with the snow!! The skyden was so unusual and different with breathtaking views and very warm! Amenities were spot on!



The Sky Den was a lovely retreat from day to day life in a beautiful setting, and very well set out, equipped and designed. The weather meant that the roof had to stay closed, but the den was a safe and warm haven from the rain and the raging river below.



We arrived very late but the staff had already contacted us and thankfully left the keys in a lock box which was very handy! We loved our stay and wish we could have stayed longer. The weather didn't deter us from attempting some of the walking routes. Also we were well prepared thanks to the information provided before our stay.



Absolutely incredible... Check in was very smooth we were left to look around ourselves and figure out how to put the chairs together and set up the table etc. which was all part of the fun... The area was so private which we loved. Beautiful scenery. The accommodation was fantastic it had everything we needed what a great place... We could take our doggy too which was great as he loved the area (lots and lots of walks and swims) it was very clean and tidy.



The Sky Den - a most amazing and unique experience for our 20th Wedding Anniversary. What could be more romantic than sleeping under the stars surrounded by the sights and sounds of the forest? As outdoorsy people we loved the choice of open spaces and our dog, Harry, enjoyed the long walks through Kielder Forest direct from the door. We had great fun discovering all the hidden compartments and furniture and we were surprised by how spacious the living accomodation was. For anyone wanting to get away from it all we would highly recommedned the Sky Den for a fun and quirky break.



It was a truly amazing experience the Treehouse exceeded all our expectations and we had three fantastic days at Kielder



Loved it! Our 10 year old son got a huge surprise when we turned up and we had a wonderful and different family break. The weather even smiled so we could open the roof to look at the stars.



myself, my husband , son and a friend - both 16.( my son has high functioning ASD) we all enjoyed staying in the Sky Den , sleeping on a board is not my idea of a holiday but the boys loved being in the triangle upstairs. not much chance of sleeping under the stars as it rained and the midgies were out in force. the boys booked a range of activities and tried everything offered. They loved the high ropes and climbing wall, - the instructors were amazing. staff were very helpful and made the boys feel very welcome.



2 night stay for 2 adults & a dog, ideal location, stunning scenery, with the gentle sound of the stream below place to totally chill. We lit the wood burner & opened the wine, lovely.



Brilliant in every way



We enjoyed it very much with good accusation weather and activities



Skyden was exactly how we thought it would be except on website showed composting toilet and keilley kettle. Neither of them there but didn't spoil our fun. Fantastic feeling when opening roof. Love stalls and bench in wall idea.



"Quite surprised at how spartan it was when we first entered the square but it is great fun finding all the bits and bobs and furniture and sofa and "constructing" the living space. Constant sound of water running is very relaxing and the beds were very comfortable. Just a shame it was too drizzly to open up the roof to the skies."



"The building was amazing, so cleverly put together with all the ready to make furniture and stores beds. Was a wilderness adventure from arriving"



"We were delighted by the Sky Den. We hadn't realised its location was next to the river, which added another lovely aspect. We booked straight away to come back in the Spring"



"A great experience to stay in such an unusual tree house type building, beautifully designed. We loved the outdoor area with wood burner, and going to sleep to the sound of the river rushing just below. Well equipped"



"The accommodation was brilliant. Cosy and with the roof opening to see the stars, well clouds unfortunately but was lovely. Great location to travel around Kielder. Seeing Red Squirrels and going to Kielder Observatory"



"Great location, comfortable beds, good amount of blanket etc to keep warm, peaceful and serene but close to other things if you wanted to go exploring"



"Yes is excellent, liked the area there was lots to do and our accomodation was fabulous."



"We had a wonderful time, the Sky Den was an incredible place to stay, the location was stunning. We saw stars and red squirrels. We didn't want to leave!"



"It was fantastic, the sky den was every bit as wonderful as we hoped. The centre and the staff were lovely too....glad our hire charge went to support such am amazing charity."



"The stay was great fun, everything we need packed into small spaces. Very comfortable beds, great views, lovely sound of the stream"



"It was a stunning , quirky and unique place. From the moment we arrived you had a smile on your face from the setup of the inside and its position in the trees ."



"Impressed with the detail that had gone into the premises, including books, telescope etc. Worst was the midges"



"Amazing! Watched the program so knew all about it! Amazing location!"



"We did, great location, unique property, no hassles, everything provided that we could reasonably expect."



"I loved it! I cried as soon as I saw it and then cried as I looked around it - I couldn't believe I was actually there!"



"We all loved Skyden and had a magical stay. We felt so close to nature. Waking up listening to the river below, feeling like a bird in the trees with the roof open, and our youngest loved the wild bunnies and the plentiful chaffinches eating seed from her hand."



"Amazing place especially the novelty of having a bedroom with walls that opened out - sleeping under the stars - well almost!!. Area quite small so would not have wanted to stay more than a couple of nights."



"We had an excellent stay. The Calvert Trust have many activities which my son and his friend really enjoyed. The accomodation was excellent, especially the top room with the opening roof."



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  • Treehouse for 4

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No charge Own travel cot - mezzanine sleeping space up ladder, not suitable for babies and toddlers.

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