Brisbane City Council has offered the City's flood-ravaged residents an extra 30 days to pay their rates.

All ratepayers in flood affected homes would also receive a $100 rebate on their water bill so they can use the water needed to clean up after the flood.

To further assist people cleaning up after the flood, Council will not operate parking meters or enforce timed parking zones and parking bays for 30 days in flood affected areas.

Council advised affected residents to contact their service providers to arrange extensions on any other bills.

The Council also advised its residents that 160 bus services will operate across Brisbane tomorrow as floodwaters recede and roads reopen.

According to media statements made by the Council, Brisbane had a lower flood peak of less than fives metres at the Brisbane City Gauge.

The Bureau of Meteorology was forecasting that the Brisbane River would peak at 5.2 metres however the weather service revised this down to less than five metres.

The peak river level was expected to last for around 12 hours before beginning to fall.

Residents were strongly encouraged to stay out of floodwaters as they contained debris and contaminants. Sightseeing was also discouraged and residents were advised to limit all non-essential travel.

However the Brisbane River reached a peak of about 4.6 metres with estimates of 15,268 residential and commercial properties being affected by significant flooding at this height.

The suburbs identified as being the worst impacted by the flooding were Brisbane City, St Lucia, West End, Rocklea and Graceville.

Since Wednesday morning, the Council’s contact centre received 10,033 calls from residents, which included a high number of reports of floodwater inundation to properties throughout the city.