The facility on Cassowary Drive, to be built by Osborne Park-based Badge Constructions, will be able to accommodate up to 30 officers.
No police have been based in the suburb since a shopfront station closed in 2009 and currently Ellenbrook-based officers service the community.
WA Police metropolitan region Commander Brad Royce said they would initially house 14 to 20 officers that would gradually grow.
“I think it’s great for the Ballajura community because they’ve been asking for it for some time,” he said.
“Now they’ll get their own local team that are actually in their suburb.
“Initially, it will cover the immediate Ballajura area, but as we expand with people we’ll take more suburbs. They’ll all have their local teams in the station.
“It’s a growing community and needs a changing police presence to take up that space.”
Police Minister Liza Harvey said she expected the facility to be operational by the end of the year “all going well”, with the building to be completed by the end of November followed by a fit-out. “The decision to build this station was more based around accommodating our growth program… the community did want the station,” she said.
“Ballajura will now get a proper police station.”
Mrs Harvey said the building would house some of the extra 550 officers the Government aimed to employ by July 2017.
She said in the future the building could house up to 44 personnel if further modifications are carried out.
West Swan MLA Rita Saffioti said the whole community was excited at getting a police station back in the community and many residents had been involved in a community campaign since 2008.
“I think the biggest issue was the lack of police presence and the lack of the feeling of safety,” she said.
“This is something that the community wanted.”
Ms Saffioti said there had been issues with large call-out times in Ballajura.
She said the Government had originally promised a 24-hour station, which she hoped would still go ahead.
Mrs Harvey said hooning and antisocial behaviour were two of the main police issues in Ballajura.