Rates for mixed-use buildings in Hong Kong: special considerations
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Written by Michael Wong, CPA
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Business Tax Guide
Property Rates for Mixed-Use Buildings in Hong Kong: Special Considerations
📋 Key Highlights
Independent Tenement Assessment: The Rating and Valuation Department assesses each unit in a mixed-use building separately, rather than treating the entire building as a single property.
Different Rates Structures: Progressive rates (5–12%) apply to domestic units, while non-domestic units are charged a flat rate of 5%, regardless of rateable value.
Progressive Rating Scale Thresholds: Starting from the 2024/25 financial year, domestic units with a rateable value exceeding HK$550,000 are subject to progressive rating scales on the excess portion.
Market Rental Valuation: The rateable value is determined based on open market rental comparisons for each unit's respective category (retail, office, residential).
Individual Demand Notes: Owners of each unit will receive separate quarterly demand notes; there is no consolidated bill for the entire building.
Common Area Rules: Income-generating common areas (such as rooftop leases or advertising spaces) are assessed separately for rates, typically payable by the Owners' Corporation.
Have you ever wondered why, within the very same building, the rates payable for your ground-floor retail shop differ vastly from the residential units upstairs? This is precisely the unique aspect of how Hong Kong approaches taxation for mixed-use buildings. With over 70% of urban properties in Hong Kong being mixed-use developments, understanding how the Rating and Valuation Department assesses these complex properties is crucial, whether you are an owner, investor, or developer. This guide will break down the special considerations for rates assessment on mixed-use buildings, giving you a clear grasp of how they differ from single-use properties.
Unlike some jurisdictions that assess an entire mixed-use building as a single property, the Hong Kong Rating and Valuation Department adheres to a clear principle: each separately occupiable unit is assessed independently as a tenement. This means your ground-floor retail shop, second-floor office, and upper-floor residential units will all be valued separately based on their specific uses and corresponding market rents.
⚠️ Important Definition: Under the Rating Ordinance, a "tenement" means "any land, or any building, structure or part thereof which is held or occupied as a separate or distinct tenancy or holding, or which is the subject of an easement or licence". This legal definition ensures that every leasable space receives an independent assessment.
How Rateable Value Is Determined
The rateable value represents the estimated annual open market rental value of a property as of October 1 each year. For mixed-use buildings, the Rating and Valuation Department compares each unit against properties with similar uses in the district:
Retail Units: Compared with other retail spaces in the district.
Office Space: Benchmarked against similar office properties.
Residential Units: Assessed against comparable residential rentals.
Restaurant / Dining Space: Evaluated using dedicated market comparison data.
The most significant difference between different types of units in a mixed-use building lies in the applicable rates structure. Starting from the 2024/25 financial year, Hong Kong introduced a progressive rating system for residential properties, while commercial units maintain a flat rate.
💡 Pro Tip: The progressive rating system means that high-value residential properties (Rateable Value > HK$550,000) face significantly higher effective tax rates. This creates tax planning considerations for developers designing mixed-use buildings—premium residential units within the same building may face different financial dynamics compared to commercial spaces.
Why Rateable Values Vary Vastly Across Different Units
Even within the exact same building, rateable values per square foot can differ dramatically. This is not arbitrary; it reflects real market dynamics. Street-level shops typically command rental values 2 to 3 times higher than upper-floor residential units due to street frontage visibility and foot traffic. Below are the primary drivers of these disparities:
Location Premiums Within a Building
Ground Floor Shops: Command a rental premium due to street visibility, foot traffic, and accessibility—typically HK$1,200 to HK$2,500 per sq. ft. in core areas.
Upper Commercial Floors: Lower rental value than ground floor shops, but higher than residential units due to commercial utility value.
Residential Floors: Valued under residential leasing market dynamics with different economic models (typically HK$400 to HK$800 per sq. ft.).
High-Floor Units with Views: May command a 10–30% premium within the residential category.
Case Analysis: Mixed-Use Building in Mong Kok
Unit Type
Floor Area
Rateable Value
Rateable Value / Sq. Ft.
Annual Rates
Ground Floor Shop A
500 sq. ft.
HK$720,000
HK$1,440
HK$36,000 (5% flat rate)
Ground Floor Shop B
300 sq. ft.
HK$450,000
HK$1,500
HK$22,500 (5% flat rate)
2/F Office
800 sq. ft.
HK$480,000
HK$600
HK$24,000 (5% flat rate)
5/F Residential A
450 sq. ft.
HK$270,000
HK$600
HK$13,500 (5% flat rate)
12/F Residential B
650 sq. ft.
HK$420,000
HK$646
HK$21,000 (5% flat rate)
Penthouse Duplex (14/F)
1,200 sq. ft.
HK$900,000
HK$750
HK$59,500 (Progressive rate)
Please note that although the rateable value per square foot of the penthouse duplex unit is lower than that of the ground floor shop, its annual rates are nearly double those of the ground floor shop due to the progressive rating system. This precisely illustrates the critical interplay between valuation and the rates structure in composite buildings.
Assessment of Common Areas: Who Is Responsible for Payment?
Common areas (lobbies, corridors, staircases, rooftops, external walls) require special consideration in composite buildings. The key principle is: income-generating common areas will be assessed separately, while non-income-generating areas generally will not.
Examples of Common Areas That Are Separately Assessed
Rooftop telecommunications equipment leases: If the building leases rooftop space to telecommunications companies, a separate rates assessment will arise.
External wall advertising spaces: Advertising rights on the building's external walls may be assessed separately.
Podium car parks: If operated commercially or leased to third parties, a separate assessment applies.
Ground floor management offices: If leased to property management companies or used for commercial purposes.
⚠️ Important Notice: Under Section 16 of the Building Management Ordinance, when an Owners' Corporation receives rental income from common parts, it is deemed to be the "owner" for the purposes of property tax and rates. This means that the Owners' Corporation will receive demand notes for the revenue-generating common areas.
Each separately assessed unit receives an individual quarterly demand note issued by the Rating and Valuation Department. This system ensures clarity and accountability, but requires careful management for owners holding multiple units in composite buildings.
What Your Demand Note Contains
Rateable Value for the current financial year
Applicable rates percentage (5% for commercial units, progressive rates for residential units)
Quarterly rates amount due and payable
Government Rent (if applicable—3% of rateable value for most leases granted after 1997)
Due date for payment (typically the last day of January, April, July, or October)
Any applicable rates concessions (rates relief is periodically provided by the Government)
⚠️ Payment Deadlines and Surcharges: Rates must be paid on or before the "Due Date" shown on the demand note. Late payments will incur: a 5% surcharge on unpaid amounts after the due date; and a further 10% surcharge on the total outstanding amount after being overdue for 6 months.
3/F Residential Unit (600 sq ft):
Rateable Value: HK$620,000
Annual Rates (Progressive):
First HK$550,000 × 5% = HK$27,500
Next HK$70,000 × 8% = HK$5,600
Total = HK$33,100
Quarterly Payment: HK$8,275
Total Combined Quarterly Rates Burden: HK$23,275
For Developers and Planners
Rates Implications in Financial Forecasts: Different rates structures affect investment returns—commercial units maintain a flat rate of 5%, whereas high-end residential units face progressive rates.
Marketing Considerations: High-value residential units (Rateable Value > HK$550,000) are subject to progressive rates, which may impact buyer appeal and pricing.
Common Area Income: Rental income from rooftops or external walls creates additional rates liabilities for the Owners' Corporation.
Podium Design: The commercial podium and the residential towers above fall under different rating categories.
For Incorporated Owners / Management Committees
Budget Planning: Include rates for income-generating common areas in the annual budget.
Rental Income Declaration: Ensure all rental income from common areas is properly declared for property tax and rates assessment purposes.
Demand Note Management: Ensure proper receipt and settlement of any Demand Notes issued for common areas.
Communication with Owners: Clarify that rates for individual units are the sole responsibility of individual owners and are separate from management fees.
The Rating and Valuation Department conducts an annual general revaluation to ensure that rateable values reflect prevailing market rental levels. For mixed-use buildings, this means that each category of use is reviewed independently:
Valuation Reference Date: October 1 of the preceding year (for example, the 2025/26 assessment references market conditions as of October 1, 2024).
Effective Date: The new rateable values take effect on April 1 each year.
Publication: The new Valuation List is published in mid-March for public inspection.
Objection Period: Approximately 2.5 months (usually from March 17 to May 31), during which objections can be lodged via Form R20A.
💡 Pro Tip: Units within the same building may experience drastically different year-on-year changes in rateable value. If retail rents increase by 10% while residential rents decline by 5%, the rateable value for street-level shops will rise, whereas residential units may see a downward adjustment. Pay close attention to market trends specific to your property type.
✅ Key Takeaways
No Building-Wide Assessment: Mixed-use buildings are never assessed as a single entity—each unit is assessed independently based on its specific use and rental market dynamics.
Rates Applied by Use: Residential units are subject to the progressive rating scale (5%–12% for the portion of RV exceeding HK$550,000), while commercial units are charged a flat rate of 5% regardless of valuation.
Market-Driven Valuation: Due to distinct rental market trends, the rateable value per square foot for ground-floor shops is typically 2 to 3 times higher than that of upper-floor residential units.
Separate Demand Notes: Owners of each assessed tenement receive quarterly Demand Notes individually—there is no consolidated bill for the entire building.
Common Area Liabilities: Income-generating common areas (such as rooftop leases and advertising spaces) are assessed separately and are generally the responsibility of the Incorporated Owners.
Impact of Progressive Rates: High-value residential units (RV > HK$550,000) face significantly higher effective tax rates, creating financial pressures distinct from those of commercial spaces.
Annual Revaluation: Rateable values are reviewed annually with a reference date of October 1, taking effect on April 1 of the following year.
Declaration of Change in Use: Any structural alterations or changes in use must be reported to the Rating and Valuation Department for reassessment.
Historical Urban Pattern: Composite/mixed-use buildings are the cornerstone of Hong Kong's efficient land utilization, ranging from traditional "shophouses" (residential above, retail below) to modern commercial-residential complexes.
Understanding how Hong Kong handles rates for composite buildings is not only a matter of tax compliance, but also essential knowledge for making sound property investments, development planning, and financial management. With the progressive rating system now impacting high-value residential units while commercial spaces maintain their flat-rate structure, the financial dynamics within composite buildings have become more complex than ever. Whether you are a property owner, investor, or developer, grasping these specific considerations will help you make better decisions and avoid unexpected financial burdens within Hong Kong's unique urban landscape.
📚 Sources of Information
The content of this article has been verified against official Hong Kong Government data and authoritative reference sources:
Last updated: December 2024 | The information in this article is for general reference only. Please consult a qualified tax professional for specific issues.
