One of the first places that I look during a Constructability Review is at the alignment (or mis-alignment) of utilities for the building or buildings.  Because the utility design work is often divided up by the Civil Engineer, Mechanical Engineer, and Electrical Engineer, it is necessary to overlay these drawings to make sure that the types, sizes and locations of each utility are in alignment in all drawings.  Frequently, I have found a 6" sewer line from the building feeding into a 4" sewer line, a natural gas line not aligning with the gas meter location, or the fire sprinkler riser location not shown or not aligned with the water supply line.

My methodology has been to organize and list all utilities needed for a building or buildings and systematically verify each utility type, size and location.  To make your review easier, below is a partial list of utilities that should be considered in a Constructability Review:

1. Sanitary Sewer / Clean out(s)
2. Storm Drains / Roof Drains / Rainwater Leaders
3. Domestic Water / Water Meter
4. Fire Sprinkler Water / Riser / Backflow / FDC / PIV
5. Natural Gas / Gas Meter
6. Electrical Power / Transformer / Meter / Main Switch Board
7. Data / Communication / MPOE
8. Fire Alarm / Exterior Devices