It is named after Sir Paul Chater, as is the adjacent Chater Road.

Entity and relation annotations:
id: 0
type: entity
value: text: Sir
labels: <Title>
id: 1
type: entity
value: text: Paul Chater
labels: <Person>
id: 2
type: entity
value: text: Chater Road
labels: <Location>
type: relation
to_id: 0
labels: Person:holds_title:Title
from_id: 1