Tanger Outlets has begun work on a major expansion that will add nearly 50 percent more retail space, room for 25 more stores and a new entrance across from Dutch Wonderland for the Route 30 shopping center.

The project, which is expected to be completed next fall, will create an additional 123,000 square feet of retail space on a 13-acre parcel east of Tanger and behind Lancaster Family Resort.

Tanger bought the tract from Lancaster Host Resort for $4.15 million.

A Tanger spokeswoman declined to give a cost estimate for the expansion which she said would create 300 additional jobs.

Stores to be added include Michael Kors, Under Armour, H&M Express, North Face and Columbia.

Excavation work has begun on the tract and in a week or two, some buildings at the southeast corner of the center will be torn down, clearing a way for the new section of stores.

Tanger now has 65 store spaces in 254,000 square feet of retail space. The expansion will mean the construction of 145,000 square feet of retail space and the demolition of 25,000.

Some cosmetic upgrades will be done on the existing stores as part of the project and the center will remain open during the work.

The former Sky-Vue Drive-In Theater property has been the site of an outlet mall since 1982, when Lancaster Outlet City opened there.

After a change in owners, a one-year shutdown and a brief stint as MillStream Factory Shops, the site was acquired by Tanger Factory Outlet Centers in 1994.

Tanger Factory Outlet Centers is a publicly traded real estate investment trust. Based in Greensboro, North Carolina, Tanger Factory Outlet Centers owns 43 shopping centers in 21 states and Canada.