I want to show you what a difference it makes to pressure clean those two surfaces. It can be done in one go, and is really affordable.
Now, you might agree that your driveway needs some attention but at the same time, you feel that the sidewalk in front of your house really isn't your business. After all, other people are using it, too, and it seems not fair, that you alone should care for this public space.
I hear you. Unfortunately, nobody will do it or have it done for you and also pay for it. Not the City. Not your neighbor. So it stays the way it is: Dingy, grubby and unsightly. Algae grow and when you have trees, leaves are falling in large quantities in spring. Then it rains and turns your sidewalk into a slippery slope, which is not just from the leaves but the algae, too.
That might be bad news. Especially for you, who own a nice, big corner lot. There is so much more sidewalk to take care of. Which is why I am suggesting, we should take care of that task for you and you don't have to lift a finger.
Here is the above mentioned home where we were about to pressure wash the driveway and sidewalk: