A Tamarac-based investment company has been growing its industrial portfolio in the tight Palm Beach County market, buying a portfolio of five small buildings with Cushman & Wakefield’s help.

Genet Property Group bought the four-building Fairfax Industrial Park at 1700 Avenue L and a building at 7150 Devon Rd. in Riviera Beach for $12 million from The Silverman Group, a family-owned private equity and development company based in Basking Ridge, New Jersey.