What are soft costsin construction?

Hard costs pay for the physical work: labor, materials, equipment, and the subcontracts that put the building in the ground. Soft costs pay for everything else the project needs to exist, including design, approvals, insurance, financing, and legal work. A useful field test: if you can hit it with a hammer when the job is done, it is a hard cost. The gray zone is items like permits and builder's risk, which can sit on either side depending on who the contract makes responsible.

There is no single number; it depends on project type, location, and how the owner categorizes items. As a rough planning figure, ground-up US commercial work often budgets construction soft costs somewhere between 15 and 30 percent of hard costs, with design-heavy buildings like hospitals and labs trending toward the high end. Treat any percentage as a starting allowance and replace it with real quotes (the actual A/E fee proposal, the actual permit schedule) as soon as you have them.

In the general contractor's world, no. Supervision, the jobsite trailer, temporary utilities, and cleanup are general conditions, and they sit inside the construction contract as hard costs even though they never become part of the finished building. Some owner-side pro formas group them differently, which is why budgets get garbled when the two sides compare numbers. Pick one convention for your estimate, label it, and stay consistent.