In this month's Sydney Notebook, Victor Yeung reports on several updates in Sydney: NSW government announced stamp duty change, house-buyers can save $500 on average; construction for Sydney's new fish market will start next year and is expected to open in 2023; a new health and education precinct will come to western Sydney and is expected to bring over 20,000 new jobs in next 30 years; NSW's oldest timber bost was unearthed in Barangaroo.