Tall Obstacles
CAAS should be consulted on the height limit that fall within the green zone, regardless of the proposed development, structures or construction equipment, prior to any building development; installation of tall structures such as antennas and chimneys; and mobilisation of tall construction equipment such as cranes and rigs. As for the development and mobilisation of tall construction equipment within the red zone, CAAS needs to be consulted only if the proposed building height exceeds 150m AMSL (above mean sea level).
If you intend to mobilise tall construction equipment within the above mentioned limits, please apply to CAAS using the online form at least 7 working days prior to the mobilisation.
Please refer to the attached map of Singapore.
