The Castle Hill Showground and its facilities are secure following community consultation about the adjacent North West Rail Link station precinct.
Transport minister Gladys Berejiklian said the location of the station and the construction site had been moved to reduce impacts on the Showground.
The railway station will also be renamed Showground Station, in line with a suggestion by the Castle Hill and Hills District Agricultural Society.
The update follows The Hills Council's decision earlier this year to move out of the council building.
The changes will be outlined when the second Environmental Impact Statement is released in coming weeks.
Pick up next week's edition of Hills News for more information.