Hi All,   I have multiple Durisol blocks left over from a self-build extension, would suit anyone looking to build small garden building, retaining walls, or similar.  I was planning to build a sunken hot tub but plans have had to change.   D365/120S-PIR = Qty.143 D365/100S-PIR = Qty.57 D365/100C-PIR = Qty.20 D170 Face = Qty.6 D170 Standard = Qty. 27 D250/180 Standard = Qty.40 D250/180 Face = Qty.48   Please get in touch if these could be useful to someo