HKIA/ARB PA Paper 4 study materials
HKIA/ARB PA Paper 4 study resources

HKIA/ARB PA Paper 4 key terms

HKIA/ARB PA Paper 4 · Get comfortable with the vocabulary.

Authorized Person (AP)

A person registered under Hong Kong's Architects Registration Ordinance who is empowered to submit building plans and supervise building works on behalf of a building owner.

Related: Registered Structural Engineer (RSE), Registered Specialist Contractor (RSC), Supervision Plan
Registered Structural Engineer (RSE)

An engineer registered under the Buildings Ordinance who is responsible for the structural design, plan submission and site supervision of structural works in a building project.

Related: Authorized Person (AP), Registered Specialist Contractor (RSC), Supervision Plan
Registered Specialist Contractor (RSC)

A contractor registered under the Buildings Ordinance for a specific category of specialized works, such as foundation, demolition, site formation or ground investigation, and named on the approved plans.

Related: Authorized Person (AP), Registered Structural Engineer (RSE), Temporary Works
Buildings Ordinance (BO)

The principal Hong Kong legislation, Cap. 123, governing the planning, design, construction, alteration, demolition and use of buildings and associated building works.

Related: Buildings Department (BD), Occupation Permit, Notice of Refusal
Buildings Department (BD)

The Hong Kong government department that administers the Buildings Ordinance, vets building plans, issues permits and enforces compliance through inspection, orders and prosecution.

Related: Buildings Ordinance (BO), Occupation Permit, Notice of Refusal
General Building Plans (GBP)

The set of drawings and particulars submitted to the Building Authority showing layout, construction, drainage, fire safety and compliance with the Buildings Ordinance and allied regulations.

Related: Notice of Refusal, Occupation Permit, Prescribed Plan
Notice of Refusal

A written notice from the Building Authority declining to approve submitted plans, stating the grounds of refusal and the provisions of the Buildings Ordinance or regulations that are not satisfied.

Related: General Building Plans (GBP), Resubmission, Buildings Department (BD)
Occupation Permit (OP)

A permit issued by the Building Authority certifying that a building or part of it is fit for occupation, following satisfactory completion of the works and required inspections.

Related: Temporary Occupation Permit (TOP), Certificate of Completion, Buildings Department (BD)
Temporary Occupation Permit (TOP)

A permit allowing partial or early occupation of a building before full completion, subject to conditions and to outstanding works being finished within a stated period.

Related: Occupation Permit (OP), Certificate of Completion, Form 5 Submission
Site Supervision Plan

A documented plan prepared by the Authorized Person and Registered Structural Engineer setting out supervision levels, personnel, inspection frequencies and reporting duties for building works.

Related: Authorized Person (AP), Registered Structural Engineer (RSE), Form 5 Submission
Form 5 Submission

The notification and certification submitted by the Authorized Person and Registered Structural Engineer confirming that supervision has been carried out in accordance with the approved supervision plan.

Related: Site Supervision Plan, Occupation Permit (OP), Certificate of Completion
Minor Works

Smaller building works listed under the Minor Works Control System that may proceed without prior plan approval, using prescribed simplified procedures and qualified persons.

Related: Prescribed Building Professional, Buildings Ordinance (BO), Temporary Works
Prescribed Building Professional

A registered architect, engineer or surveyor prescribed under the Minor Works Control System to certify or supervise specified classes of minor works.

Related: Minor Works, Authorized Person (AP), Registered Structural Engineer (RSE)
Plot Ratio

The ratio of total gross floor area of a building to the area of the site on which it stands, used to control development density under building and planning controls.

Related: Site Coverage, Gross Floor Area (GFA), Sustainable Building Design Guidelines
Site Coverage

The proportion of a site covered by the building footprint, measured as the area of building covered at ground level divided by the site area.

Related: Plot Ratio, Gross Floor Area (GFA), Setback
Gross Floor Area (GFA)

The sum of floor areas of all storeys of a building measured to defined boundaries, with certain plant rooms, car parks and other areas excluded or discounted under the regulations.

Related: Plot Ratio, Site Coverage, Concessionary Items
Concessionary Items

Building features such as car parks, plant rooms, balconies or utility platforms that may be excluded or partly excluded from gross floor area calculations under specified conditions.

Related: Gross Floor Area (GFA), Plot Ratio, Sustainable Building Design Guidelines
Sustainable Building Design Guidelines

Practice guidelines issued by the Buildings Department promoting building separation, setbacks, site permeability and greenery, with incentives linked to gross floor area concessions.

Related: Setback, Site Coverage, Concessionary Items
Means of Escape

The continuous route from any point in a building to a place of safety, comprising exit routes, exit doors, staircases and discharge paths sized for occupant capacity.

Related: Fire Compartment, Means of Access, Protection of Openings
Fire Compartment

A space enclosed by fire-resisting construction that limits the spread of fire and smoke, defined by compartment area limits and fire resistance rating of surrounding elements.

Related: Means of Escape, Protection of Openings, Fire Resistance Rating (FRR)
Fire Resistance Rating (FRR)

The period, in minutes, for which a building element resists fire, expressed as stability, integrity and insulation performance determined by standardized fire testing.

Related: Fire Compartment, Protection of Openings, Means of Escape
Protection of Openings

Requirements for fire-resisting doors, shutters, glazing and dampers at openings in compartment walls or protected lobbies to preserve the fire separation of the enclosure.

Related: Fire Compartment, Fire Resistance Rating (FRR), Means of Escape
Means of Access

Provisions enabling firefighting personnel and equipment to reach a building, including access roads, hardstanding, fireman's lifts and firefighting staircases.

Related: Means of Escape, Fire Compartment, Fireman's Lift
Fireman's Lift

A lift designed and protected to fire-resisting standards so that firefighters can use it during a fire, with dedicated lobby, power supply and control features.

Related: Means of Access, Fire Compartment, Protection of Openings
Barrier Free Access

Design provisions removing physical barriers for people with disabilities, covering ramps, lifts, door widths, signage, toilets and accessible routes under the relevant design manual.

Related: Means of Escape, Setback, Occupation Permit (OP)
Setback

The required distance between a building or building element and a site boundary, street or another building, imposed for light, ventilation, fire safety or planning reasons.

Related: Site Coverage, Sustainable Building Design Guidelines, Plot Ratio
Temporary Works

Works required for construction that are not part of the permanent structure, such as falsework, formwork, scaffolding and excavation support, needing design and supervision arrangements.

Related: Registered Specialist Contractor (RSC), Minor Works, Site Supervision Plan
Hoarding

A temporary protective fence or screen erected at a construction site boundary to separate the works from the public and to contain dust, debris and unauthorized entry.

Related: Temporary Works, Site Supervision Plan, Minor Works
Demolition Plan

A submission describing the method, sequence and protective measures for demolishing a building, including stability, dust control, noise and disposal arrangements.

Related: Registered Specialist Contractor (RSC), Temporary Works, Hoarding
Site Formation Works

Works altering ground levels or slopes, such as excavation, filling, retaining structures and slope stabilization, typically requiring specialist contractor involvement.

Related: Registered Specialist Contractor (RSC), Temporary Works, Demolition Plan
Unauthorized Building Works (UBW)

Building works carried out without the required approval or consent from the Building Authority, or contrary to approved plans, and subject to removal orders and enforcement action.

Related: Buildings Department (BD), Notice of Refusal, Minor Works
Building Order

A statutory notice issued by the Building Authority requiring an owner to carry out specified works, such as investigation, repair, demolition or removal, within a stated period.

Related: Unauthorized Building Works (UBW), Buildings Department (BD), Occupation Permit (OP)
Certificate of Completion

A certification by the Authorized Person and Registered Structural Engineer that building works have been completed in accordance with approved plans and to the required standards.

Related: Occupation Permit (OP), Form 5 Submission, Site Supervision Plan
Code of Practice

A technical publication issued by a government department giving deemed-to-comply design guidance for compliance with the Buildings Ordinance and its regulations.

Related: Buildings Ordinance (BO), Fire Resistance Rating (FRR), Sustainable Building Design Guidelines
Professional Practice

The conduct, ethical duties and competence standards expected of registered building professionals, including honesty, independence, record keeping and avoidance of conflicts of interest.

Related: Authorized Person (AP), Site Supervision Plan, Certificate of Completion