BHU Penalties Explained:
Fine Calculation, Prosecution & Landlord Risk
The industry commonly cites a headline figure of "up to HKD 300,000" — but that's only half the story. The penalty structure under Section 8 of the Basic Housing Units Ordinance (Cap. 658) is far more complex, and far more severe, than that number suggests — particularly the easily overlooked daily continuing fine. This article breaks down the full offence, who can be held liable, the two-tier penalty structure, statutory defences, and a worked fine-calculation scenario. For the full ordinance breakdown, see our complete BHU Ordinance guide.
What Triggers Section 8?
The offence provisions under Section 8 of the BHU Ordinance take effect on 1 March 2027 — from enforcement day 2027 onward, landlords face the prosecution risk described in this article directly. The trigger condition is precisely defined, and understanding it is the first step to understanding the full penalty structure.
Under Section 8(1), an offence is only committed when all of the following apply at the same time:
- A flat contains 2 or more subdivided units let under separate residential tenancies; and
- The flat has no valid grace-period registration; and
- At least one of those subdivided units has no valid BHU certification.
In other words, meeting any one of the following conditions means Section 8 is not engaged: fewer than 2 subdivided units (for example, only one unit sub-let); the flat already has completed grace-period registration (lawfully let during the grace period); or every subdivided unit already holds valid BHU certification. The offence only arises from the combination of "2 or more subdivided units, no registration, and no certification."
Key point: registration and certification are two separate lawful pathways
Landlords do not need to complete full certification before 1 March 2027 to stay lawful. Completing grace-period registration before 28 February 2027 is enough to keep letting lawfully during the grace period (until 28 February 2030), while completing certification at a steadier pace.
Who Can Be Prosecuted? Not Just the Landlord
The scope of liable persons under Section 8(2) is wider than most landlords assume. The provision expressly covers three categories:
A person who lets a non-certified subdivided unit under a tenancy — that is, whoever collects rent directly from the tenant, typically a sub-landlord or property manager.
A person who lets the whole principal flat under a head tenancy — that is, the landlord, even if the landlord does not collect rent directly from the subdivided-unit tenants.
Any other person entitled from time to time to collect the above rent — covering property agents, sub-letting operators, and even co-owners with a right to collect rent.
Under this structure, even where a landlord lets the whole flat to an agency, which then sub-lets it further, the landlord (as a person under (b)) and the agency (as a person under (a) or (c)) may both be held liable at the same time. "I didn't know how the tenant was sub-letting" is not an automatic defence — the statutory defences under Section 8(4) have strict conditions, discussed below.
Two-Tier Penalties: Summary vs Indictable Conviction
The industry commonly cites only the "up to HKD 300,000 fine" figure, but Section 8(3) in fact sets out two tiers of penalty, depending on which procedure the prosecuting authority chooses:
| Procedure | Main Penalty | Continuing Fine |
|---|---|---|
| Summary conviction | Level 6 fine + up to 2 years' imprisonment | HKD 20,000 per day |
| Conviction on indictment | Fine of HKD 300,000 + up to 3 years' imprisonment | HKD 20,000 per day |
Source: Basic Housing Units Ordinance, Cap. 658, Section 8(3) (verified copy of the Laws of Hong Kong).
In broad terms: minor or first-time cases are more likely to be handled by summary conviction (heard in the Magistrates' Courts, with a lower penalty ceiling); serious cases involving multiple units or repeat contraventions may instead proceed on indictment (heard in the District Court or above, with the penalty ceiling raised sharply to a HKD 300,000 fine). Whichever procedure results in conviction, the HKD 20,000 daily continuing fine applies equally — a point frequently left out of discussions, yet it is the most critical part of the actual financial risk.
The HKD 20,000 Daily Continuing Fine: Why This Is the Real Risk
The logic of the continuing fine is straightforward: for as long as the contravention is not remedied (that is, the unit remains unregistered, uncertified, and still let), the fine increases by a further HKD 20,000 for every additional day. This has two implications:
- After conviction, if the contravention continues, the fine does not stop at a single lump sum. Every day of delay adds further financial burden.
- The continuing fine has no statutory cap. The Ordinance sets no total ceiling on the continuing fine — in theory, the longer it drags on, the higher the accumulated amount.
In other words, the main penalty (the Level 6 fine or the HKD 300,000 fine) is only the starting point. What really determines the final financial cost is how long it takes the landlord, after conviction (or after the enforcement authority discovers the contravention), to stop the unlawful letting or complete remedial action.
Statutory Defences: The Three Grounds Under Section 8(4)
The Ordinance is not entirely without flexibility. Section 8(4) sets out three statutory defences — establishing any one of them relieves the landlord of liability:
The person did not know, and had no reason to suspect, that the subdivided unit was let in contravention of the Ordinance.
The contravention could not have been avoided even with reasonable efforts.
The tenancy was not originally intended for residential use, and the person did not know, and could not have avoided, its eventual use for residential purposes.
The burden of proof rests with the defendant
All three are "establish it and you're relieved of liability" defences — meaning the landlord bears the burden of proving the relevant facts, rather than the prosecution having to prove the landlord knowingly contravened the Ordinance. For a landlord who collects rent directly and long-term, the "no knowledge" defence is not easy to establish in practice — the court will typically consider whether the landlord had a reasonable means of learning of the unit's condition. The safest course remains proactively completing registration or certification, rather than relying on a statutory defence after the fact.
How Enforcement May Work in Practice: From Discovery to Prosecution
The Ordinance itself does not spell out detailed investigation procedures for the enforcement authority, but drawing on the general enforcement pattern of comparable licensing and regulatory regimes (such as the Bedspace Apartments Ordinance), landlords can reasonably expect a process along these lines:
The Housing Bureau and related departments may learn that a flat potentially contains unregistered, uncertified subdivided units being let, through inspections, public complaints, or referrals from other departments (such as the Buildings Department handling unauthorised-structure complaints, or Fire Services Department inspections).
The Housing Bureau can verify whether the flat has completed grace-period registration and whether each subdivided unit holds valid BHU certification. This is an administrative records check and does not necessarily require the landlord's cooperation.
If records suggest a suspected contravention, enforcement officers may arrange an on-site inspection to confirm the number of subdivided units, the letting status, and whether the elements of the offence are met (2 or more subdivided units, no registration, no certification).
Once evidence-gathering is complete, the prosecuting authority decides whether to lay charges, and whether to proceed by summary conviction or on indictment, depending on the severity of the contravention, the number of units involved, and whether the landlord is a repeat offender.
Because Section 8 does not take effect until 1 March 2027, there are as yet no actual prosecution cases to reference — the process above is a reasonable inference, not an officially published enforcement guideline. Landlords should not assume that "not yet discovered" equals "safe" — the registration system itself creates an official record, and once a flat is absent from that record for registration or certification, the likelihood of it eventually being flagged is far higher than under a regime with no registration system at all.
Estimated Scenario: A Hypothetical Fine Calculation
The following is a purely illustrative hypothetical scenario — not a real prosecution case — intended to give landlords a concrete sense of how the continuing fine compounds:
Hypothetical scenario — for illustration only, not a real case
A landlord divides one residential flat into 3 subdivided units for letting. When enforcement takes effect on 1 March 2027, the landlord has neither completed grace-period registration nor obtained any BHU certification. Assume the landlord, after the enforcement authority discovers the contravention, does not immediately stop letting or begin remedial action, and continues the unlawful letting for a further 30 days, after which the landlord is convicted on indictment.
Main penalty (conviction on indictment)
Fine of HKD 300,000 (plus possible imprisonment of up to 3 years)
Continuing fine: 30 days × HKD 20,000
HKD 600,000
Estimated total monetary exposure
HKD 900,000
This figure does not yet include imprisonment, legal costs, lost rental income, or the potential impact of a contravention record on future certification applications. The continuing fine has no statutory cap — if the contravention drags on longer, the amount keeps growing.
This calculation deliberately uses a relatively conservative "30 days" as its assumption; the real-world figure could be longer — the process from an enforcement authority discovering a contravention, gathering evidence, through to formal conviction in court often takes several months, and if the landlord does not stop the unlawful letting throughout that entire period, the basis for the continuing fine calculation could far exceed 30 days.
How to Avoid It Entirely: The Dual Safeguard of Registration and Certification
All of the penalties above share a common precondition: the flat has "neither valid grace-period registration nor valid BHU certification." This means landlords have two fully lawful, mutually compatible pathways to avoid contravening Section 8:
- Complete grace-period registration before 28 February 2027 — securing a 36-month grace period (until 28 February 2030), during which letting can continue lawfully while certification is completed at a steady pace. There is no fee during the registration period.
- Obtain BHU certification directly — once assessed by a specified professional and confirmed to meet the minimum standards of living conditions, the Housing Bureau issues certification, valid for 60 months (5 years), with no deadline restriction of its own.
The two are not mutually exclusive — in practice, the safest strategy is to complete registration first as a baseline safeguard, then complete certification at a steady pace within the grace period, avoiding a last-minute scramble before enforcement day and avoiding total exposure to Section 8 liability if a single pathway runs into trouble (for example, a delayed certification process).
Frequently Asked Questions
Is the BHU non-compliance penalty capped at HKD 300,000?
Not exactly. HKD 300,000 plus up to 3 years' imprisonment is the maximum penalty for conviction on indictment. The Ordinance actually sets out two tiers of penalty: summary conviction carries a Level 6 fine plus up to 2 years' imprisonment; conviction on indictment carries a fine of HKD 300,000 plus up to 3 years' imprisonment. More importantly, whichever procedure results in conviction, a HKD 20,000 daily continuing fine also applies, with no statutory cap — this part is often the largest component of the actual financial risk.
What does the HKD 20,000 daily continuing fine mean?
The continuing fine means that after a landlord is convicted, if the unlawful letting is not remedied, the fine increases by a further HKD 20,000 for every additional day, with no statutory total cap. For example, if the contravention continues for 30 days before it stops, the continuing fine alone would accumulate to HKD 600,000, and combined with the main penalty (up to HKD 300,000), the estimated total financial exposure could reach HKD 900,000. This is the part most commonly overlooked in industry discussion, yet it is often the largest component.
Is only the landlord liable to prosecution?
No. Section 8(2) sets out three categories of person who can be prosecuted: first, a person who lets a subdivided unit under a tenancy (for example, a sub-landlord); second, a person who lets the whole principal flat under a head tenancy (that is, the landlord); third, any other person entitled from time to time to collect the above rent (for example, a property agent or a sub-letting operator). Even if a landlord lets the whole flat to an agency that then sub-lets it, both the landlord and the agency may be held liable at the same time.
Are there any statutory defences? Can a landlord claim they didn't know?
Section 8(4) sets out three statutory defences, and establishing any one of them relieves the landlord of liability: first, that the person did not know, and had no reason to suspect, that the subdivided unit was let in contravention of the Ordinance; second, that the contravention could not have been avoided even with reasonable efforts; third, that the tenancy was not originally intended for residential use, and the person did not know, and could not have avoided, its eventual use for residential purposes. However, the burden of proof rests with the landlord, and for a landlord who collects rent directly on a long-term basis, "not knowing" is not easy to establish in practice and should not be treated as a default safeguard.
How can I completely avoid liability under Section 8?
The Section 8 offence only arises from the combination of "2 or more subdivided units, no valid grace-period registration, and at least one subdivided unit without valid BHU certification." Landlords have two lawful pathways to avoid this: first, completing grace-period registration before 28 February 2027, securing a 36-month grace period until 28 February 2030; second, obtaining BHU certification directly, valid for 60 months. The two can run in parallel — registering first as a baseline safeguard, then completing certification at a steady pace within the grace period.