A proposal to enact interim zoning controls, and thereby freeze the development of market-rate housing for 18 months in San Francisco’s Mission District, has qualified for the Nov. 3 ballot.

The proposed measure, certified on Tuesday and entitled the Mission District Housing Moratorium, calls on the city to develop a plan that sets aside at least 50 percent of new housing for households that are low-to-middle income.

The housing moratorium aims to suspend issuance of city permits for construction of new housing, demolition of old housing or conversions, unless for the purpose of creating projects consisting of 100 percent affordable housing.

Permits for demolition, conversion or elimination of industrial spaces in the Mission District would also be suspended unless the site is to be used to create 100 percent affordable housing units.