Site Acquisition, Demolition and Redevelopment Regulations in Hong Kong SAR

Statutory Authorities and Legal Framework

Redevelopment in Hong Kong SAR operates under a leasehold land system administered by the Lands Department. Property developers acquire leasehold interests rather than freehold titles. The key government bodies governing site clearance, planning, and reconstruction are:

• Lands Department (LandsD): Manages government leases, processes lease modifications, and calculates land premiums for changes in land use or plot ratio.
• Town Planning Board (TPB): Administers statutory planning under the Town Planning Ordinance (Cap. 131) and approves Section 16 planning applications.
• Buildings Department (BD): Enforces technical, structural, and safety standards under the Buildings Ordinance (Cap. 123).
• Land Registry: Records property ownership, encumbrances, and deeds under the Land Registration Ordinance (Cap. 128).

Demolition Permits and Works Authorisation

To demolish an existing structure, developers must obtain statutory approval from the Buildings Department under Cap. 123. Demolition works cannot begin without two specific approvals:

1. Approval of Demolition Plans: An Authorised Person (AP) and Registered Structural Engineer (RSE) must submit detailed structural calculations, hoarding plans, environmental control schemes, and site safety management plans to the Buildings Department. 2. Consent to Commence Works (Form BA25): After demolition plans are approved, the developer must apply for written consent to commence works. The Buildings Department typically processes standard plan submissions within 60 days.

Demolition approvals trigger requirements to notify utility providers (electricity, gas, water) for service disconnection, obtain environmental permits from the Environmental Protection Department (EPD) for noise and dust management, and secure approvals for temporary traffic management from the Transport Department.

Heritage and Conservation Restrictions

Heritage assets in Hong Kong fall into two primary administrative categories under the Antiquities and Monuments Ordinance (Cap. 53):

• Declared Monuments: These structures possess full legal protection. Demolition, alteration, or interference with a Declared Monument is prohibited without a statutory permit issued by the Development Bureau.
• Graded Historic Buildings: Graded by the Antiquities Advisory Board (AAB) into Grade 1, Grade 2, or Grade 3. Graded status does not grant automatic legal protection against demolition on private land. However, if a developer intends to demolish a Grade 1 historic building, the Development Bureau may intervene by declaring the site a Proposed Monument under Cap. 53, imposing an immediate 12-month statutory moratorium on demolition to negotiate preservation options or land exchanges.

In addition, development proposals in designated Special Design Areas or statutory Outline Zoning Plans (OZPs) may include heritage conservation guidelines enforced by the Town Planning Board.

Buildable Area and Plot Ratio Calculations

Gross Floor Area (GFA) and buildable volume are governed by the Building (Planning) Regulations (Cap. 123F) and the statutory Outline Zoning Plan (OZP) for the specific planning zone.

Plot Ratio Limits

Plot ratio defines the maximum permitted total GFA relative to the site area. Under Cap. 123F, maximum permitted plot ratios depend on building height and site classification:

• Class A Site: Abuts one street of not less than 4.5 metres width (maximum non-residential plot ratio up to 15, residential up to 8 to 10 depending on site conditions).
• Class B Site: Abuts two streets.
• Class C Site: Abuts three streets.

Where an OZP specifies a lower plot ratio or height restriction than Cap. 123F, the stricter OZP limit prevails.

GFA Concessions and Discalculations

Under the Buildings Department Sustainable Building Design Guidelines (SBDG), certain non-structural elements (e.g. green features, balcony structures, mechanical plant rooms) may be exempted from GFA calculations, capped at an overall 10% concession limit for private developments, subject to passing BEAM Plus environmental assessments.

Tenant Compensation and Rehousing Obligations

Tenancy clearance depends on whether acquisition occurs via private purchase, compulsory sale, or public resumption.

Private Redevelopment and Compulsory Sale

When acquiring private sites under the Land (Compulsory Sale for Redevelopment) Ordinance (Cap. 545), developers must acquire a specified threshold of undivided shares. Under legislative updates in 2024, the required ownership threshold ranges from 65% to 80%, depending on building age (e.g. 50 years or older) and location. Remaining minority owners receive financial compensation determined by the Lands Tribunal based on the site's existing use value and redevelopment value.

For existing commercial or residential tenants in private redevelopments, leases are terminated in accordance with the Landlord and Tenant (Consolidation) Ordinance (Cap. 7). Statutory compensation for regulated residential tenancies depends on statutory notice periods. Developers often negotiate voluntary buyout packages to achieve vacant possession.

Urban Renewal Authority and Resumption

Projects executed by the Urban Renewal Authority (URA) under the Urban Renewal Authority Ordinance (Cap. 563) or government land resumptions under the Lands Resumption Ordinance (Cap. 124) involve statutory rehousing and ex-gratia allowances. Domestic tenants are offered public rental housing rehousing or cash allowances based on family size and length of occupancy.

Cost and Timeframe to Secure Building Permits

Taking an urban site from acquisition through to a valid building permit involves several statutory phases:

1. Site Acquisition and Title Verification (6 to 18 months): Assembling 100% ownership or reaching the Cap. 545 compulsory sale threshold for tribunal approval. 2. Planning Permission (3 to 6 months): If a change of land use or plot ratio relaxation is needed, a Section 16 application to the Town Planning Board takes 2 months for statutory processing, plus time for responses to public comments. 3. Lease Modification and Premium Settlement (12 to 24 months): If proposed building uses violate current land lease conditions, an application to LandsD is required. LandsD assesses the land premium (the difference between the land value under the old lease and the new lease value). Negotiation of this premium can extend project timelines. 4. Building and Demolition Plan Approval (4 to 6 months): BD approval of general building plans (GBP) takes 60 days for initial submission and 30 to 45 days for resubmissions. Demolition plan approval (Form BA25) runs concurrently or sequentially.

Associated Statutory Fees

• Land Premium: Variable market fee assessed by LandsD.
• Ad Valorem Stamp Duty (AVSD): Scale 2 rates apply to property acquisitions, with top-bracket rates at 4.25% in 2026 for properties valued above HKD 21.73 million.
• Plan Examination Fees: Standard statutory fees paid to BD based on total floor area.

Development timelines typically require 24 to 36 months from initial site control to the issuance of consent to commence building construction.

*Note: Developers should engage an Authorised Person and legal counsel to review site-specific lease covenants and statutory planning constraints prior to completing site acquisitions.*