Improve the grammaticality: In Australia, the Granny Flats, which are integrated with elder-friendly fixtures and fittings, are developed to facilitate independent living of elderly.
The Granny Flats is a 1980s design that is designed to be used by the elderly.
The Granny Flats is a 1980s design that is designed to be used by the elderly.
The Granny Flats is a 1980s design that is designed to be used by the elderly.
The Granny Flats is a 1980s design that is designed to be used by the elderly.
The Granny Flats are designed to be used by the elderly, and are designed to be used by the elderly.
Correct: The Granny Flats are designed to be used by the elderly, and are designed to be used by the elderly.
Correct: The Granny Flats are designed to be used by the elderly, and are designed to be used by the elderly.
Correct: The Granny Flats are designed to be used by the elderly, and are designed to be