Two San Francisco propositions promising to expedite affordable housing remained too close to call Wednesday, as results from Tuesday’s election are still being tabulated.

Early numbers report that Proposition D has 49.57 percent of the vote, while Proposition E has 44.55 percent of the vote. Both need over 50 percent of the vote to pass, and if both pass, whichever measure has the most votes win.

Both claim to streamline the approval process for housing construction projects.

If it were to reach victory, Prop. E would set more requirements for affordable housing project construction in terms of its size, cost and type. The Board of Supervisors will also have the jurisdiction to make funding decisions, which proponents said will advance projects in the best interests of the public.

Housing projects must also have 30 percent of units below the market rate and obtainable for lower-income residents under the measure.

Prop. E has garnered support from Supervisors Aaron Peskin, Dean Preston, Hillary Ronen and Gordon Mar, along with a group of unions and the San Francisco Democratic Party.

If Prop. D wins, it would shorten the approval timeline for housing projects that meet certain criteria. Developers would receive a clear deadline for approval from the city planning department, and would not need approval from the Board of Supervisors.

Supporters of Prop. D include Mayor London Breed, state Sen. Scott Wiener, Nor Cal Carpenters Union and the Housing Action Coalition.