房子1

这个房子有一个大花园、一个厨房、一个大客厅、一个书房、三个卧室、两个浴室和一个小杂物室。
书房在大门的左边。浴室在书房的后边。书房的后边有一个浴室。大门的右边有两个卧室。杂物室在走廊的尽头。杂物室的左边是厨房。杂物室的，右边是卧室。卧室的前面是浴室。客厅在厨房的左边。客厅的前面是花园。

Generally speaking, no grammar mistake in your writing. But some minor changes will make it more natural.

It has two bathrooms, so we won't use 浴室 as a subject.  You can say 一个浴室在书房的后边 or 书房的后边有一个浴室.