The Capital Region Development Authority board on Thursday agreed to loan $3 million toward an $18.7 million conversion of the former Travelers training center at 200 Constitution Plaza into 101 apartments. Biagio Barone of Stratford-based Barone Properties has teamed up with John Guedes, president of Bridgeport builder Primrose Cos. for the redevelopment of the roughly 125,000-square-foot, five-story, concrete building on the northeastern edge of downtown Hartford. Meeting Thursday, the CRDA Board of Directors unanimously endorsed the request, which now requires the blessing of the Connecticut State Bond Commission. The project’s financing plan calls for $13.7 million in conventional financing, $2 million in equity and $3 million from the CRDA. Guedes said the building will be gutted for the remodel. 101 windows will also be replaced as the current windows do not open. He expects to begin demolition within a few weeks of purchase and said the new apartments would become available before the end of summer 2023.