zone as

zone (some place) as (something)

To mark the boundaries of a particular area for the express purpose of becoming or serving as something. The city council has zoned the patch of land as a residential area, barring any corporate development on the site. The government zoned the entire region as a federal park decades ago.
See also: zone
Farlex Dictionary of Idioms.

zone something as something

to create a particular legally defined area within a governmental or other local area. They zoned this area as a shopping district. The city council zoned the vacant lot as a park.
See also: zone
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • zone (some place) as (something)
  • keep within
  • keep within (something or some place)
  • answer (one's) purpose
  • answer purpose
  • twilight zone
  • stitch on
  • to the purpose
  • zone (something) for (something)
  • zone for
References in periodicals archive
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As each defender reads pass, he must drop to his assigned zone as quickly as possible while keeping his eyes on a swivel.
Stack 3-3 zone blitzes
HUD guidelines define an empowerment zone as including areas that are pervasively poor.
Brooklyn's empowerment zone application under consideration
Linebacker location is a key for us on the inside zone as it dictates when to come off our double and slip to second level.
Complementing the Passing Game With the Inside Zone Run