The Los Angeles County Board of Supervisors tentatively approved the first phase of the mega-Newhall Ranch project Tuesday.

Bogged down for years by litigation, the first phase — known as Landmark Village — is set to include 270 single-family homes, 1,174 apartments and condos, a school and retail along the Santa Clara River.

Marlee Lauffer, a Newhall Land spokeswoman, said the Landmark project hopefully will break ground within the next two to three years and be completed in about five.

When complete, the larger Newhall project will have 21,000 residential units.

James Bizelle, senior vice president of community development for Newhall Land, told supervisors the Landmark Village development will bring more than 3,700 permanent jobs and 6,000 construction jobs.

Many attendees at Tuesday’s meeting took issue with the proposed development. Critics said the development would hurt the environment and increase traffic and sprawl, while not providing enough permanent jobs to support the new residential units.

Read more in the San Fernando Valley Business Journal’s coming issue.