If “coastal” covers unlike parts of Lagos, the 35-day figure could lead you to compare the wrong homes. I’d keep the completed, active and withdrawn categories suggested above, but divide each one by a narrower location and by condition as well. Access, immediate surroundings and buyer pool can...
A total is only useful if every line can be traced. My main concern would be advisers using different assumptions about the buyer, residency or ownership structure.
Put each item in a table showing the amount or calculation basis, payer, recipient, due date, whether it can be refunded, whether...