Nice house, mad/fun/different/liked the architecture – but silly mahoney to build, impractical to live in a lot of that space.
I am not sure it will meet Passiv Haus stuff on-going – and £1800 a year, errrr, no it won’t. There is a reason most Passiv Haus look like boxes, and few have as much glazing as they did, few have cavity walls like they did, and very few have big arches and high areas, few have bathrooms and sinks and kitchens at different ends of the house etc….
Nice and airtight though 🙂 we need more of that.