One thing that might be fun to record and compare is final build cost, when all was said and done, split out in a clear way. Not just the bricks but also Architect Cost, QS, Planning submissions, furniture.. eeeeeverything. And next to that ideally your best prediction before you started! The data would be super valuable for people starting off.. also fun stuff comparing and contrasting. Spreadsheet capturing all the data is here! [Google Sheets] (anonymous editing should work)