A year ago I bought an amazing plot down the end of Wales with full permission for what now seems - as I get a better grasp of what makes an efficient modern building - a somewhat backward design given what is now possible: a cavity wall cottage with conventional block skins (inner skin blocks laid on flat), a rudimentary floor slab design and run-of-the-mill approach to air-tightness and insulation throughout.
My wife and I will quite possibly only build one house - this one - so we'd like to do as good a job as possible with the methods and materials now available but also have a project we can engage with; we both like a challenge, enjoy researching new tech and want to be interested in what we're doing. To give you an idea of our angle: we wanted to build a boat a few years ago and could (probably should) have built a plywood dinghy, a simple fibreglass sloop... something sensible. Instead we took four years to make a high-performance, high-tech ocean-going multihull. So we're probably asking for trouble again - self-building a house with limited prior experience... but it seems like fun.
I'm trying to work out the best way we can go about this build and so far I've concluded that a) cavity wall as specced in our plans is not the best option, and single skin blockwork with external insulation possibly is. I am completely open to all possiblities though.
This forum has already given me a lot to consider.
Edited by MarkH, 10 March 2016 - 12:06 PM.