The new "mansion tax" that starts Saturday is now projected to bring in 25% less than original estimates advertised to voters in November.

This past November, Los Angeles voters backed Measure ULA, a transfer tax on big-ticket property sales that the city says will generate a new revenue stream for affordable housing projects and homelessness prevention. Known as the “mansion tax,” Measure ULA will impose a 4 percent tax on property sales above $5 million and a 5.5 percent tax on properties above the $10 million mark. The tax must be paid by the seller.

The City of Los Angeles now expects to make a lot less from its new transfer taxes than originally advertised.

Measure ULA is projected to generate up to $672 million in revenues from July 1 of this year through June 30 of next year, according to an analysis from the City Administrative Office, which conducts financial and budget analyses. The office released its report 2 weeks ago.

The new numbers are about 25 percent less than original estimates provided to voters in November, assuming about $5.1 billion less in property sales.