. >> reporter: enrique landa is with associate capital, the firm that acquired the property last year. one of the city's older sites dating back to the 1850s. >> it went from gunpowder manufacturer to barrel making, it later became a gas a gas a >> reporter: the plant was controversial, neighborhood activists blamed it for polluting the local air and wanted it closed down. the city is public state commission eventually agreed. pulling the plug on the last power plan in san francisco. work is currently underway to clean up the toxic legacy left behind from the site's previous tenants. when that work wraps up developer already have plans for the future. >> our project will be more than 50% housing. >> reporter: they are planning to build 1800 homes. the rest of the site will be a mix of offices, production, research and retail space. the developers have been listening to nearby groups to fine tune their plans. >> i think the developers have a vig for the project and those initial meetings set the parameters for the negotiation that's going to continue. >> reporter: among the request of