 Historic preservation exists in Sydney and is overseen by the New South Wales State Heritage Register, established in 1999.Some of Sydney's grandest edifices have been replaced with contemporary architecture, a trend which began in the 1960s and has continued throughout to the present day.Lax heritage conservation in Sydney has attracted the ire of Sydneysiders, who are often in opposition to what government or local authorities want for the city, something seen recently with government contesting the heritage-status of the Sirius building at The Rocks.