Albert J. Dwoskin, a Fairfax County developer, has plans to build a gathering place for immigrant day laborers behind the Centreville Square Shopping Center.

Dwoskin says the site would discourage the migrant workers from collecting on nearby streets and in front of local businesses — a now common practice. The workers, many of whom are Guatemalan, often hang out near Centreville’s busiest business sectors in the hopes of finding construction and agriculture work.