Londonderry Retirement Community has announced it is hosting open houses on Thursdays from 2 to 4 p.m. through September featuring the newly constructed cottages adjacent to the historic Londonderry Manor House property inEaston. Ten cottages have been built of the 41 cottages in the final $18 million phase of development on the property. Londonderry a waterfront retirement community for independent living, situated on approximately 28 acres along the banks of the Tred Avon River at 700 Port Street in Easton, is one of several cooperative retirement communities nationwide where residents have a say in the day to day operations of their facility and enjoy the financial benefits of real estate ownership but not the burdens of home maintenance.