A pilot program that pays some Los Angeles County homeowners to build a second dwelling on their property to house homeless people was approved with a 4-0 vote Tuesday by the Board of Supervisors.

Homeowners in unincorporated communities who qualify can receive up to $75,000 to build a second dwelling in areas zoned for such structures, while others may get $50,000 to update and legalize an existing dwelling.

The program was introduced last year as part of Los Angeles County’s set of 47 strategies to solve homelessness. The office of Regional Planning will work with several departments countywide with an allocated $550,000 in part to be used to offer subsidies.

Unlike a guest house, second dwellings include kitchens.

• RELATED STORY: 3 reasons why so many are homeless in LA County

The program also will streamline the permitting process and provide technical assistance to homeowners within the county’s unincorporated areas, who would qualify, officials said.

Details of who would be housed and the selection process are still under discussion, said supervising regional planner Connie Chung on Monday. Funding allows for two to three new second dwellings, and for the remodeling of two to three existing ones, she added.

• RELATED STORY: ‘I’ve had to become tough’: How homeless women survive the dangers of Skid Row

The program is expected to be completed within 18 months.

Homelessness spiked 23 percent across Los Angeles County’s neighborhoods and suburbs this year compared with 2016, with more than 55,000 people sleeping on sidewalks, in their cars, or along the Los Angeles River, according to results of a count taken in January and released in May.

Meanwhile, Los Angeles city and county voters approved two measures recently: Proposition HHH, a parcel tax, was approved by voters in the city of Los Angeles in November and is expected to raise $1.2 billion in bonds for the construction of 10,000 units of housing. Measure H, a quarter-cent sales tax, was passed by Los Angeles County voters in March to raise an estimated $355 million a year for 10 years to help homeless people transition into planned affordable housing. That quarter-cent sales tax is set to begin on Oct. 1.