The Kazerne is in front of the Muizenfort, though it looks like a grass covered hill surrounded by a fence from behind. Only the front facade is clearly visible. According to information I read there, it was built in the same year as the muizenfort, and I found the style to be very similar.
I know of the subdivisions on the world heritage site, but I find it weird that a WHsite that is all about the flooding of the surrounding areas does not seem to include smaller building as sluices or dikes. Surely they play a part in the process, and if so, shouldn't they be part of the WHS? A recent evaluation file stated appropriate maps and borders are requested.
Also, this site
, which seems pretty official to me states that muizenfort is "a part of" muiden fortress. In dutch Muiden fortress is called Vesting Muiden. Which I interpret as fortress town muiden, meaning multiple parts.
The west battery is included seperatly on the WHS, but why not call Muiden fortress simply Muizenfort if it's only this fort?
i'm pretty sure Muiden fortress also includes the great sea-sluice, the barracks, and maybe some smaller constructions.