While most of the development is suburban in nature, larger industrial lots are being developed closer to the escarpment. The major industries in Milton are automotive, advanced manufacturing, distribution and food production. The town published a Current Development Map and also a Future Urban Structure Map - Building Possibility document that indicates the general plan for the use of lands in future, intended to "minimize further expansion of urban areas and unnecessary and inefficient consumption of land". 1970s growth In 1978, the Ontario Municipal Board approved the Alliance Ex-Urban project, paving the way for a 532-unit plan, which broke ground with an initial 180 houses at Bronte St. and Derry Rd. in 1979. A further 600 detached and semi-detached houses were completed in 1979, as Timberlea moved into phase two of its construction. Phase One saw 300 homes built in the Timberlea area bounded by Derry Rd., Thompson Rd. and Ontario St. S. The final Timberlea village includes 1,400 homes. An additional 30 homes were built in 1979 by Kingsway Plastering on Commercial St, and 10 new units in Campbellville's McLaren Subdivision. A 107-unit apartment complex was also completed in 1979 on Millside Drive. Building permit totals in 1976 reached $28 million, before dipping in 1977, and rebounding to nearly $23 million in 1978. In 1979, the estimated total building permit revenue reached $100 million. By 1979, the town zoning administrator stated that, due to drinking water limitations at the time, completion of the Timberlea and Alliance projects would "complete all the residential development that can go into the town." For the next 20 years, very little growth occurred in Milton. 21st century Residential growth has increased substantially since 2002 due to completion of "The Big Pipe" project; designed to deliver water to the town from Lake Ontario. Since then, Milton developed an initial seven new subdivisions, including Hawthorne Village, and several new ones are under development by Mattamy Homes and various other builders. Multiple new grade schools have been built, as well as the Crossroads Centre shopping plaza that includes various major retail stores and restaurants. An eight-screen movie theatre is operated by Cineplex Entertainment under their Galaxy Cinemas brand and opened on June 30, 2006. In July 2014, Milton council approved 11 new residential applications that will see an additional 6,000 homes built, increasing the population by roughly 25,000 new residents. In 2013-14, Milton approved construction of a