The council's Housing Committee chair, Chas Townley and vice chair, Jenny Miles cut a ribbon to mark the occasion at a ceremony attended by representatives of the scheme's building contractor and invited guests.
Once housing eight prefabricated bungalows, the now 11-apartment development at Tanners Piece has taken just nine months to complete.
The project, which started in September 2018, is part of Stroud District Council's £8 million investment in modernising and rebuilding its sheltered housing schemes to ensure they meet the needs of an ageing population.
Nationally it is expected that there will be a significant increase in the number of older people over the next 20 years, and Stroud district is likely to be no exception.