Co-Ownership Agreement (Hong Kong)

Co-Ownership Agreement in Hong Kong is a contract between two or more persons who jointly own real property in Hong Kong, setting out their respective ownership shares, financial contributions, usage rights, decision-making procedures, and mechanisms for sale, partition, or buyout. Governed by the Conveyancing and Property Ordinance (Cap. 219), the Partition Ordinance (Cap. 352), and Hong Kong common law property principles, the agreement is essential for tenants in common and advisable for joint tenants who wish to record clear arrangements.

Hong Kong has among the highest property prices in the world, making co-ownership an increasingly common arrangement for first-time buyers, investment partners, family members, and unmarried couples who could not otherwise access the property market individually. The Land Registry, which maintains Hong Kong's land register under the Land Registration Ordinance (Cap. 128), records the names of all registered owners of a property — but does not record the terms of any private co-ownership arrangement between those owners. The co-ownership agreement fills this gap by documenting the parties' agreed rights and obligations in a binding private contract.

Hong Kong law recognises two forms of co-ownership: joint tenancy and tenancy in common. Joint tenants hold property together with a right of survivorship — on the death of one joint tenant, their interest passes automatically to the surviving joint tenant(s) by operation of law, regardless of any will. Tenants in common each hold a distinct, alienable share (which may be equal or unequal) that can be dealt with independently during their lifetime and that passes on death in accordance with their will or the rules of intestacy under the Intestates' Estates Ordinance (Cap. 73).

The choice between joint tenancy and tenancy in common has significant estate planning implications. Married couples purchasing a matrimonial home often hold as joint tenants to confirm automatic survivorship. Investment co-owners, siblings sharing an inherited property, or unrelated buyers typically hold as tenants in common with defined shares reflecting their respective financial contributions. A joint tenancy can be converted to a tenancy in common by severing the joint tenancy — served under the Conveyancing and Property Ordinance (Cap. 219).

Stamp duty considerations are particularly important in Hong Kong co-ownership arrangements. Under the Stamp Duty Ordinance (Cap. 117), ad valorem stamp duty (AVD) applies on the purchase price of a residential property at rates up to 15% under Scale 1 for buyers who are not first-time permanent Hong Kong residents. Buyer's Stamp Duty (BSD) applies to non-permanent resident buyers at an additional 15%. When co-owners are a mix of qualifying and non-qualifying buyers, the stamp duty implications must be carefully planned before the purchase.

The Mortgage Ordinance and the practices of Hong Kong's banking sector — overseen by the Hong Kong Monetary Authority (HKMA) under the Banking Ordinance (Cap. 155) — impose loan-to-value ratios on co-owned properties. The HKMA's property mortgage guidelines (issued under Section 7(3) of Cap. 155) set the maximum loan-to-value ratio, which affects how much each co-owner can borrow against their share. The co-ownership agreement should address how mortgage obligations are shared and what happens if one co-owner defaults on their portion of the mortgage repayment. Section 11 of the Conveyancing and Property Ordinance (Cap. 219) sets out the default position for tenants in common, while Section 25 governs the creation and severing of joint tenancies — provisions that the agreement should supplement rather than contradict.

Co-Ownership Agreement in Hong Kong is needed whenever two or more persons purchase, inherit, or otherwise come to hold property jointly in Hong Kong. The following specific circumstances each make a written co-ownership agreement advisable or essential.

Joint purchase by unmarried couples: When an unmarried couple in Hong Kong purchase property together, a co-ownership agreement records their respective shares, financial contributions, and the arrangements if the relationship ends. Without a written agreement, the couple's respective contributions and entitlements will be determined by courts applying constructive trust principles under Hong Kong equity law — an expensive and uncertain process.

Joint purchase by siblings or family members: When adult siblings jointly inherit or co-purchase a family property in Hong Kong, a co-ownership agreement clarifies who occupies the property, how expenses are shared, and how the property will be divided or sold if the family circumstances change.

Co-purchase with an investment partner: When two or more investors purchase Hong Kong property as a rental investment, the co-ownership agreement should specify each investor's share, how rental income is distributed, how major decisions (such as renovating or selling) are made, and each party's right to sell or transfer their share.

Unequal financial contributions: Whenever the co-owners contribute different amounts to the purchase price, deposit, or mortgage payments, a co-ownership agreement specifying unequal shares (reflecting the actual financial contributions) protects each party's investment. Without an agreement, a court may presume equal shares regardless of actual contributions.

Parent helping adult child purchase property: A common Hong Kong arrangement is parents contributing part of the purchase price for a child's home without appearing on the title. A co-ownership agreement or deed of trust can record the parents' beneficial interest even if they are not registered as legal owners at the Land Registry.

Company and individual co-ownership: When a company and an individual jointly own a Hong Kong property — common in commercial real estate investments — the co-ownership agreement governs their respective rights, exit mechanisms, and decision-making, alongside any shareholders' agreement relating to the company's interest. The Stamp Duty Ordinance (Cap. 117) imposes different rates on companies and individuals, and Section 29 of Cap. 117 addresses duty on shared ownership transactions — co-owners should obtain stamp duty advice before finalising the purchase structure.

Co-Ownership Agreement in Hong Kong should contain the following key elements to protect each co-owner's rights under the Conveyancing and Property Ordinance (Cap. 219) and Hong Kong common law property principles.

Party Identification: Full names, Hong Kong Identity Card numbers (or passport numbers for non-residents), and addresses of all co-owners. For corporate co-owners, the company registration number and registered address under Cap. 622 should be stated.

Property Description: The full address of the property, the Government Lot number or Lot and Folio reference as it appears in the Land Registry, and the type of property (residential, commercial, industrial). For properties held under a Deed of Mutual Covenant (DMC), the relevant DMC provisions on co-ownership of common areas should be noted.

Ownership Form: A statement of whether the co-owners hold as joint tenants (with right of survivorship) or as tenants in common (with defined shares). If tenants in common, the precise share of each co-owner (e.g. 60:40 or 50:50) must be specified. Unequal shares should reflect actual financial contributions to avoid disputes.

Financial Contributions: The purchase price paid by each co-owner, including the deposit, legal costs, stamp duty paid, and any other acquisition costs attributable to each party. Ongoing financial obligations — mortgage payments, government rates under the Rating Ordinance (Cap. 116), government rent under the Government Rent Ordinance (Cap. 40), building management fees, insurance, and maintenance — should be allocated clearly between the parties.

Mortgage Obligations: Which co-owner(s) are borrowers on the mortgage (if any), how mortgage repayments are shared, and what happens if one co-owner fails to meet their mortgage obligations. The co-ownership agreement should address the HKMA's mortgage regulatory requirements and each party's obligations to the lending bank under the relevant authorised institution's facility letter.

Usage Rights: Whether one co-owner has exclusive right of occupation, or whether both co-owners share occupation. If one co-owner occupies exclusively, whether rent is payable to the non-occupying co-owner (and at what rate). For investment properties, how rental income is distributed between the co-owners and how decisions about tenants and lease terms are made.

Decision-Making: Whether major decisions (renovation, mortgage refinancing, letting to tenants, sale of the property) require the consent of all co-owners or a specified majority. For Hong Kong properties held under a DMC, owners corporation or MCST meetings that affect the property should be considered.

Right of First Refusal (Pre-Emption): A requirement that a co-owner wishing to sell their share must first offer it to the other co-owner(s) at a specified price (or at a price determined by an independent valuer from the Hong Kong Institute of Surveyors) before selling to a third party. This protects co-owners from finding themselves sharing the property with a stranger.

Forced Sale and Partition: The circumstances in which either co-owner may compel a sale or partition of the property. Under the Partition Ordinance (Cap. 352), any co-owner can apply to the Lands Tribunal or Court of First Instance for an order for sale or partition — the co-ownership agreement should address whether the parties agree to attempt private sale before resorting to court proceedings.

Dispute Resolution: The process for resolving disagreements — negotiation, mediation (the Hong Kong Mediation Council offers property mediation services), and ultimately court proceedings before the Lands Tribunal or District Court.

Governing Law: Confirmation that the agreement is governed by the laws of Hong Kong SAR and that disputes are subject to the jurisdiction of the Hong Kong courts. Forms-legal.com provides a free Co-Ownership Agreement template alongside related documents including the hk-sale-and-purchase-agreement and the hk-deed-of-mutual-covenant.