Just to be clear...

If you block the entrance to your own structure is that against the rules?

If you come out of a SP game and still have fly on but turn it off is that against the rules?

What would be approved to build near spawn?

no it's not against the rules to either of those, as long as you turn off fly before you start playing minetown.

Dont build within the walls of minetown unless approved

you can do whatever you want on your own stuff,

You cant fly on our server anyway but I do recommend turning/toggling it off or because the staff do receive alerts when you use cheats.

To build in spawn town you need to ask for a lot at a mod or an admin and to make a nice building.

There are currently lots being set for more houses, always depends on what you want to build there.