That is meant to keep the building level.

这样意于保持建筑水平。

youdao

At the same time, due to the improvement of building level, more and more high buildings have come into being, which accordingly lead to some complicated disputes.

同时由于建筑水准的提高，高层建筑物层出不穷，由此引发的纠纷也更加纷繁复杂。

youdao

Thurlow and Brown's rooms were on the second level, to the rear of the building.

瑟洛和布朗的房间都在大楼背面的第二层。

《柯林斯英汉双解大词典》

The Commerce Department reported Thursday that the building of new homes fell in March to the second-lowest level on record.

VOA: special.2009.04.17

We've seen a boom in building in the United States that is at a record level, except for that one Korean War blip, and so I think it's a highly abnormal situation that we've been in.

所以美国出现一波建造新房的浪潮,规模空前,仅次于朝鲜战争时期,我认为这是极不正常的

耶鲁公开课 - 金融市场课程节选

The Nuyorican Poets Caf is in a three- level building.

VOA: special.2009.04.27

This is then combined with a modelling system for quantifying CO2 emissions down to individual building level.

BBC: US researchers map carbon emissions at street level

Smart grids can happen at the building level and scale up to global, just as the Internet did.

CNN: Commentary: Green way to create jobs, save cities

Such standards (ethics and quality, to name two) were critical to building a level of audience trust.

FORBES: Inside Forbes: Reinventing Personal Brand-Building By Learning From the Masters