Complex sentence: The kitchen underwent a renovation in the late 1950s, while a metal front door and metal window grilles were installed at a later date, but the house otherwise retains its appearance from the time of Berry's residence.
Split into simpler sentences: The kitchen underwent a renovation in the late 1950s, while a metal front door and metal window grilles were installed at a later date. The house otherwise retains its appearance from the time of Berry's residence.