測量主任（規劃）的主要職責是(a) 進行實地測量和在工地拍攝照片，以供規劃之用；(b) 蒐集與規劃工作相關的資訊，就規劃資訊和統計數據進行電腦處理、計算和分析，以供擬備報告和簡報資料之用；(c) 整合、管理和更新關於圖則、報告和規劃資料數據庫的記錄系統，包括地理資訊系統或資訊科技的應用；以及(d) 協助培訓見習測量主任。

A Survey Officer (Planning) is mainly deployed on (a) conducting field surveys and taking photographs on site for planning purposes; (b) collecting planning-related information and computerizing, computing and analyzing planning information and statistics for preparation of reports and presentations, with the application of Geographic Information System and IT technologies; (c) compiling, maintaining and updating of record systems for plans, reports and planning databases; and (d) assisting in the training of Survey Officer Trainees.