Home builders and remodelers usually allocate between 5% and 10% of a project budget for a construction contingency. This amount creates enough breathing room for unexpected costs. Anyone tracking estimates and costs manually will calculate a contingency percentage on top of all costs before profit margins are applied.
Contingency costs can be incurred during any of the construction project phases. For example, a design error may lead to an unexpected increase in material expenses before ground-breaking. At the same time, a stretch of inclement weather might delay or complicate final detailing and sign-off steps.
This contingency is normally calculated as a percentage. If the phase is 100 days of effort, contingency at 20% would be another 20 days. As the project progresses, the level of risk reduces as the requirements and issues become known, so the percentage will be reduced.
What Is a Contingency? A contingency is a potential occurrence of a negative event in the future, such as an economic recession, natural disaster, fraudulent activity, terrorist attack, or a pandemic.
It provides a safety net for unexpected expenses and ensures the project stays on track, both in terms of budget and timeline. The recommended percentage for a contingency fund is between 5-10% of the total budget, but this may vary depending on project complexity and past experiences.
A contingent contract is a legal agreement in which the terms and conditions only apply or take effect if a specific event occurs. Essentially, the parties involved agree to perform actions or obligations based on the occurrence or non-occurrence of a particular event in the future.
The Architect's Handbook of Professional Practice clarifies a contingency allowance as the amount, or percentage, included in the project budget to cover unpredictable changes in the work or items of work. It serves three core purposes: To account for errors and omissions in the construction documents.
Home builders and remodelers usually allocate between 5% and 10% of a project budget for a construction contingency. This amount creates enough breathing room for unexpected costs. Anyone tracking estimates and costs manually will calculate a contingency percentage on top of all costs before profit margins are applied.