1.AdjectiveBelonging to or part of an organization; internal.
2.AdverbOccurring within an establishment, using existing personnel, facilities, and supplies, as opposed to at some external supplier or customer.
"All of the Disney World character costumes were developed in house, using materials like rubber for Mickey Mouse's face and crushed velvet for his black fur.; We like to keep our product and process development in house to help protect our intellectual property rights."