For Residential Properties:
The Building Cost Calculator (BCC) is intended to use as a guide to help you in determining the estimated sum to be insured for your residential house or shop house.
You should review your sum insured and estimate the likely cost of rebuilding your home to its current specification. This is to minimize the problem of under-insurance so that you will not be inadequately compensated in event of a loss.
If you are buying a new home, it’s just as important that you estimate the potential cost of rebuilding it as this amount probably different from the price you had paid for the property. The estimated cost of rebuilding would be the Sum Insured on your policy.
You are advised to consult an expert in rebuilding cost such as a registered valuer, quantity surveyor or licensed builder if your home has been extensively renovated and /or have unique non standard designs.
Please click to below link to PIAM website for the BCC calculator: