Restriction on leasing building attached to land with annual lease payment

A land user who leases land from the Government with annual payment is not allowed to lease houses and building attached to the land unless such land user registers for real estate business under the Law on Real Estate Business 2014. At first, it seems quite illogical to limit the owner of an asset to lease it while still allow such asset to be sold. However, this is the position under the current land regulations. In particular,