Wonder if there are professional estimators on the forum who can help or point me in the right direction when it gets to rough-cut planning and cost estimation before pursuing acquisitions. IMO with any development, during the early due diligence assessment, you need three feasibility assessment stages: quick feasibility assessment, preliminary assessment and professional assessment. My question is around reliable methods to do a quick feasibility assessment. As with other building disciplines, estimators often are using proven short-cut methods to do estimates. What are those methods they are using? (Example: electrician will look at the number of electrical/light points, number of walls, floor area etc to do an estimate on length on cables, labour & material costs. However they will do take-offs from a formal drawing. What if drawings aren’t available yet as during the quick assessment stage? 1. Quick feasibility assessment: a) How do you get quick but reliable costs for site works (say within 10%)? What short-cut estimation methods are available? What are key factors to consider? What if it is a multiple dwelling site – how do I scale costs (its not linear)? How will the site layout and services points influence the cost estimates? How do I know where is the services points? How & where do I find the location of easements on the site?b) What about drainage (storm water, black water and gray water)? How do I estimate the costs for that?c) Cost estimate for the design consultant fees? Can I assume the architect will contract the surveyor, engineers, city planners etc? What assumptions do I need to make? When do I engage them for the 1st time (before or after the land has been purchased)? What % of the development contract value get used? 2. Preliminary feasibility assessment If we look at the feasibility calculator offered from this vendor: Resource - Be Developer, Australia a. If I don’t know the costs yet what percentages can I used for cost estimations and what accuracy does it give? b. What is the base value I use for these % estimates? c. How often do you use the method that you proposed and how reliable were they after completion.