A temporary moratorium measure on market-rate development in the Mission District that Supervisor David Campos introduced to the Board of Supervisors on Tuesday would, according to the Business Times, stall around 1,100 housing units in the neighborhood pipeline if it were approved by the Board, first for 45 days, but then with hopes for a two-year extension.

That's more units put on hold than was originally anticipated, as many thought the plan would merely apply to larger developments of 20 or 50 units. In fact, as introduced, the moratorium would apply to market-rate housing projects of five or more units, across the district.

The measure would need to classify as an "interim urgency ordinance" and is unlikely to pass, with opponents claiming it would present an opportunity for existing landlords to increase evictions and tenant buyouts as their properties rise in value according to the laws of supply and demand. Campos is also combatting the Board's moderate bloc and progressive swing vote London Breed.

But such a moratorium could be given new life at the ballot box thanks to the guy who will likely run for his seat both down with a moratorium. That's Edwin Lindo of the San Francisco Latino Democratic Club, although Campo's own top choice would probably be his aide Hillary Ronen.

Campos' call to arms is explicitly gentrification, which his office has cited in a press release. "The Mission has lost over 1,600 low to moderate income households since 2000," they write, "At the same time, the population of Latinos in the Mission has declined by more than 8,000."

Campos introduced the ordinance at Tuesday's meeting of the Board, and it pertains to Cesar Chavez Street from Guerrero Street to Potrero Avenue, Potrero from Cesar Chavez to 20th Street, 20th from Potrero to Bryant Street, Bryant from 20th to Division Street, Division from Bryant to Valencia Street, and Valencia from Division to Cesar Chavez. Within those boundaries are planned developments from big names such as Lennar Urban and Maximus Real Estate Partners.

Though most developers propose to build 12 percent on-site affordable housing units, Maximus has pitched a unique plan for its 16th and Mission development. That calls for 24 percent affordable housing in total with 290 market-rate apartments on-site, 41 "middle-class" for-sale units on-site (for $280,000 to $350,000, sold to households making between $61,000 and $145,650) and 49 below-market-rate rentals to be built off-site at as yet undetermined property in the Mission, with those priced as "affordable" for families earning 30 to 55 percent of the city's median income.

Previously: Both Campos And Guy Vying For His Seat Push To Halt Market-Rate Development In The Mission