An introduction to myself, my plot and and my self-build can be found in the following thread:
Having carried out one self build which turned out to be a lovely family home, we were keen to do another now that both our children had left home. We were drawn towards Passivhaus and started looking on the Southern side of the English Welsh border around 2015. The plot we eventually purchased was in Shropshire and one of 9 self-build / custom-build plots. The plots have a design code but there is a lot of flexibility within the design code and energy efficiency is encouraged. All infrastructure work (roads, lighting, mains services etc) are being sorted out by the developer which removed some of the risk. Timetable to the start of the build was as follows:
Oct 2017 - Offer accepted on plot. Architect appointed.
The architect was somebody who had already provided feedback on some previous plots we had looked at and we felt was very much in tune with our own ideas.
Feb 2018 - Initial Design completed. Pre-App submitted to planning.
Jul 2018 - Full Application submitted to planning
Aug 2018 - Completed on plot
Sep 2018 - Application approved by planning with one condition
Oct 2018 - Started Groundwork / Landscaping. Planning condition discharged.
So, over 3 years from starting to look for a plot to starting with the build which seems to be around par for the course.
The house as mentioned previously is Passivhaus using a Passivhaus raft foundation and a timber frame that is being built on site using I-Beam / Glulam Beams. It is very different from my previous self build which was brick / block.