The proposed Kompleks PKNS development is a historical building located at Persiaran Dato Menteri, opposite Shah Convention Centre, Shah Alam. The building was 4 storey shop offices, converted to shopping complex with enclosed roof. With the additional roof, the volume of the complex exceeds the fire compartment requirement in UBBL. As such, a performance-based approach (PBA) analysis is required to ensure the fire safety level is maintained.