Watermillock
Brackenrigg Inn
Inn / pub with rooms · Watermillock — Boutique rooms, pub dining and views over Ullswater.
Places to stay / Watermillock
WATERMILLOCK · SELF-CATERING PASSIVHAUS NEAR ULLSWATER
Tethera Passivhaus
A detached two-bedroom holiday home near Ullswater, combining a light-filled interior with an energy-efficient design. Enjoy space to cook, relax and take in the surrounding countryside at your own pace.
Last updated: 24 October 2026
At a glance
- Entire holiday home for up to four guests
- Two king-size bedrooms and two bathrooms
- Open-plan kitchen, dining and living area
- Mezzanine sitting area and workspace
- Parking for two cars; paid EV charging
- Outdoor seating with lake and fell views
Plan your stay
Compare current prices and whole-property availability for your dates.
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Location
Area
Knotts, near Watermillock and Ullswater
Address
Tethera, Watermillock
Penrith, Cumbria CA11 0JN
Use the host’s arrival instructions for the final approach.
About Tethera Passivhaus
Tethera sits on the edge of Knotts, a small hamlet near Watermillock in the Ullswater area. This detached holiday home offers a quieter base for couples, friends or a small family who want their own space in the Lake District.
Its Passivhaus design uses substantial insulation, airtight construction and passive solar warmth to reduce reliance on conventional heating. Large windows bring natural light into the living spaces and frame the surrounding countryside.
Two bedrooms and space to unwind
The house sleeps up to four in two king-size bedrooms on the ground floor. The main bedroom has an en-suite bathroom with a bath, while the second bathroom has a walk-in shower.
Upstairs, the mezzanine provides a separate sitting area and workspace. Check bed heights, entrances and bathroom access with the host if you have mobility requirements; a ground-floor bedroom alone does not confirm step-free access.
Take a look around
Tethera Passivhaus View
Tethera Passivhaus Rear
Tethera Passivhaus Patio
Tethera Passivhaus Outside
Tethera Passivhaus Outdoors
Tethera Passivhaus Outdoors 2
Tethera Passivhaus Living Room
Tethera Passivhaus Living Room 2
Tethera Passivhaus Kitchen 2
Tethera Passivhaus Ground Floor 2
Tethera Passivhaus Ground Floor
Tethera Passivhaus 2
Tethera Passivhaus Bathroom
Tethera Passivhaus Ground Floor
Cook, dine and relax together
The open-plan kitchen, dining and living area gives you room to share meals and settle in after a day out. Prepare breakfast before heading into the Lakes, enjoy a leisurely lunch or cook dinner at home.
There is outdoor seating for making the most of the setting when the weather allows. Bring groceries for your stay and check the host’s current inventory if you need particular kitchen equipment.
A different approach to heating
Tethera’s insulation and glazing help retain warmth, with heating supported by towel rails and the building’s passive design. Temperature control works differently from a conventionally heated house.
Read the house instructions on arrival and contact the host if you need help with heating or ventilation. The mezzanine can also be a useful place to read or work between days exploring the area.
Before you book
There is parking for two cars and an EV charger paid for separately by app. The house has lake views, but there is no direct access to the lake across the surrounding private fields.
Pets, indoor smoking and parties are not permitted. A recorded doorbell camera covers the entrance. Check arrival instructions, any deposit requirements, cancellation terms and the total price for your dates before reserving.
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