Under the Commonhold and Leasehold Reform Act 2002, leaseholders of a block of flats have the right to take over management if the original lease was for a period over:

The correct answer is rooted in the requirements set forth by the Commonhold and Leasehold Reform Act 2002, which allows the leaseholders of a block of flats to take over the management of the building. Specifically, this right is granted when the original lease has a term that exceeds 21 years. This provision was established to empower leaseholders and enable them to gain more control over the management of their living environment, particularly in terms of how service charges and maintenance issues are handled.

Having a lease longer than 21 years signifies a commitment to the property and provides leaseholders the necessary authority to actively participate in its management. The act facilitates this shift in management to foster better relationships between leaseholders and property management, ensuring that the interests of the residents are prioritized.

While the other options refer to different lease lengths, they do not align with the specific provision in the act that stipulates a minimum of 21 years. Therefore, leaseholders with leases over this duration can effectively initiate the process of take-over, making the correct answer a crucial aspect of understanding leaseholder rights in this context.