2 sentences for 一层 (yī​céng — floor)

1. 这里的房子不大，通常只有一层楼高。

   zhè​lǐ de fáng​zi bù​dà, tōng​cháng zhǐ​yǒu yī​céng lóu gāo.

   The houses here are not big, usually only one storey high.

   Source: CCMatrix

2. 你的面试服装应该符合公司的着装规范，或更上一层楼。

   nǐ de miàn​shì fú​zhuāng yīng​gāi fú​hé gōng​sī de zhuó​zhuāng guī​fàn, huò gèng​shàng​yī​céng​lóu.

   Your interview attire should match the dress code of the company, or be one step up.

   Source: UM-Corpus: News