East Sussex Fire and Rescue Service were called at 1.32pm on 5 November to reports of landslide near Marina in St Leonards on Sea.
Crews attended, provided safety advice and made contact with a scaffolding company as it was at risk of being affected.
No-one was evacuated from properties at this point.
We were called at 8.56pm on 5 November to reports of a further landslide and unstable ground affecting both Marina at the bottom of a cliff and West Hill Road at the top of a cliff.
A wall had collapsed.
A structural engineer was on site, a police drone and a helicopter were used to help assess the situation.
Residents were allowed to return to eleven properties on West Hill Road at around 11.15pm. Two properties remained evacuated.
There are no reports of injuries.