2021 Heritage Impact Statement - Construction of a new residence at 14A The Crescent, Pennant Hills The 1905 subdivision of the Crescent. Area outlined in purple contains the study site. LocalSydney - NorthernHeritage Assessment Author: Dr. Sue Rosen Client: Private Client. The object of this Heritage Impact Statement was to assess the heritage impact of the construction of a new two storey residence adjacent to a heritage item listed on the Hornsby LEP.