这座房子真漂亮的英文表达是：This house is really beautiful.

这句话的来源是英语中表达对物品的审美评价的常见语言方式。

一些例句：

This house has a beautiful view. (这座房子有一个美丽的景色。)
The architecture of this house is stunning. (这座房子的建筑设计令人惊叹。)
The interior design of this house is gorgeous. (这座房子的室内设计真是绚丽多彩。)
The garden of this house is very well-maintained. (这座房子的花园保养得很好。)