助理屋宇測量師的主要職責為協助執行《建築物條例》及相關規例所引致各項與樓宇管制有關的一般職務，包括：

(a) 處理建築圖則、施工同意書、完工證明書，以及佔用許可證和牌照／註冊的申請；實地審查施工中的建築工程，以及小型工程；
(b) 處理僭建物、失修和危險的建築物、欠妥排水渠、危險斜坡及擋土構築物；並採取所需的執法行動，包括發出法定命令／通知並進行緊急工程；
(c) 執行強制驗樓計劃和強制驗窗計劃；
(d) 評估現有建築物的消防安全設施，並指明所須進行的消防改善工程；以及
(e) 提出檢控和採取紀律行動；統籌有關上訴的回應；並進行法例檢討及研究工作。

[註：獲取錄的申請人須於戶外工作，或須(i)輪班當值及執行不定時職務；(ii)在熱帶氣旋、暴雨及其他緊急事故期間執行職務；並(iii)可能被借調往其他政府部門工作。]

An Assistant Building Surveyor is mainly deployed on assisting in the general administration of all building control functions arising from the Buildings Ordinance and allied legislations, including -

(a) processing buildings plans, applications for consent to commencement of works, certificates of completion of works, applications for occupation permits and licences/registrations, and carrying out site audit checks on building works in progress and minor works;
(b) dealing with unauthorised building works, dilapidated and dangerous buildings, defective drains, dangerous slopes and retaining structures, and taking necessary enforcement actions including statutory orders/notices and emergency works;
(c) administering the Mandatory Building Inspection Scheme and Mandatory Window Inspection Scheme;
(d) evaluating the fire safety provisions of existing buildings and specifying the required fire safety improvement works; and
(e) instigating prosecution and disciplinary actions, coordinating responses to appeals, and carrying out legislative review and research.

[Note: Successful candidates appointed are required to perform outdoor duties, may be required to (i) work shifts or irregular hours; (ii) perform duties during tropical cyclones, rainstorms and other emergencies; and (iii) be seconded to other government departments.]