Ms. Lisa Elliston Substantive roles First Assistant SecretaryStrategy, Projects and Priorities(02) 6271 5322lisa.elliston@pmc.gov.au First Assistant SecretarySocial Policy Division(02) 6263 3757lisa.elliston@treasury.gov.auTreasury Building, Langton Crescent, Parkes ACT 2600 Last updated: 19 November 2021