What is a 'Prime Cost' & 'Provisional Sum'

Let's start with a 'Prime Cost';

These are in reference to your fixtures and fittings for example - Door handles, tiles, tap sets, sinks, mixers, doors, oven, stovetop, dishwasher, etc.

Now for 'Provisional Sum';

These are in relation to materials and labor. Some examples of 'Provisional Sums' are landscaping, site costs, tiling rate per square meter, floor finishes per square meter rate, etc.

Ideally, you will have most of these locked away so that your Builder is able to provide you with the most accurate quote. This also helps you keep on top of your budget knowing without unexpected costs midway through your build.

However in the circumstances where there have been no selections prior to quoting Builders should always allow a mid-range value.