Planning a construction programme that actually holds

A programme is only as good as its durations. Guessing "two weeks for blockwork" ignores how much blockwork there is and how many masons you have.

Durations from work content

Divide the quantity by the output of one crew per day, then by the number of crews. Change the design and the programme updates with it.

Watch the critical path

Tasks with no float decide your end date. Order materials for those first and protect them from delays.