Hi all, A while ago I built myself a standard buy and hold property investment calculator/assessment tool in excel. As I am looking to move into property development I decided to rejig it to be a high level cost/benefit feasibility assessment tool. I realise that there are third party tools & software that already exist that perform this, however I would like to refine this one as a first point of call for 2 reasons: 1) I cannot justify a $1000 software outlay just yet, and more importantly, 2) I learn by doing - refining this one will help me understand any areas where I am making initial mistakes with my assumptions. As such, if any of you have a chance, do you mind having a look/play with the high level feasibility tool (found here: Dropbox - Feasibility Assessment ). Any suggestions/thoughts are appreciated. A few parameters for understanding the sheet: 1) Calculated fields are blue, and input fields are orange. (There a few automated calcs on the front and hidden sheets). 2) The sheet calculates 3 possible loans: a) Purchase loan b) Construction loan c) Existing equity withdrawal to cover other costs (as indicated using the Loan/Capital column). 3) Assumes the Develop and Sell scenario. Develop and Hold is not yet built.