Visible light communication (VLC) offers a promising alternative to RF in interference-sensitive indoor settings. This study evaluates the luminance distribution performance of VLC systems in office environments, strictly following Malaysian Public Works Department (JKR) standards for 500 lux illumination. Using 120° beam MR16 LEDs, the analysis demonstrated a bit error rates (BER) of 3.43×10⁻⁵ and a data rates up to 1.25 bps at minimal link distances, with consistent performance regardless of room dimensions. The findings demonstrate that a JKR-compliant VLC deployment can simultaneously fulfil lighting requirements and maintain robust communication, paving the way for practical office scale implementations.