Construction Costs
School Construction Cost Planning: Wong Tai Sin, Hong Kong SAR, China
Wong Tai Sin school cost planning using the World Bank ICP 2021 national construction price-level index of 141.8, plus a GeoNames-based local comparable-search shortlist.
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Last updated September 15, 2026 · National screening observation from the [World Bank ICP 2021 API](https://api.worldbank.org/v2/sources/90/country/HKG/classification/PX.WL/series/1501200/time/YR2021/data?format=json) and [ICP data documentation](https://www.worldbank.org/en/programs/icp/data); locality and population from the [GeoNames HK dump](https://download.geonames.org/export/dump/HK.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 1818304). The PLI is not a city cost/m² rate, current escalation series or tender estimate.
Direct answer
For early school construction cost planning in Wong Tai Sin, the World Bank ICP reports a 2021 Hong Kong SAR, China construction price-level index of 141.8, with the world equal to 100. This is a national comparison—not a Wong Tai Sin HKD/m² rate or tender estimate—so replace it with current local evidence before budgeting or procurement. The observation covers construction across Hong Kong SAR, China in 2021; it does not measure a Wong Tai Sin market basket or current school tenders. GeoNames 1818304 records the locality at 22.3500, 114.1833, with snapshot population 425,235. That ranks Wong Tai Sin 9 of 50 listed places, while Tsz Wan Shan is the nearest listed peer at about 2 km. Use these facts only to plan the comparable search. Obtain current local rates on a consistent area basis, then reconcile scope, taxes, fees, contingency and escalation. Retain the source, base date and reviewer when local evidence replaces the screening ratio.
Content and cited inputs reviewed by Scott Barrington, Harth founder and architectural technology specialist · Published 2026-08-26 · Updated 2026-09-15.
What does the 141.8 construction index mean?
The World Bank ICP 2021 construction PLI for Hong Kong SAR, China is 141.8, compared with a world benchmark of 100. It is a national spatial price comparison assembled for the 2021 reference year. It does not say that school work in Wong Tai Sin costs 1.418 times a current world rate.
Which Wong Tai Sin inputs are known?
The reproducible locality point is 22.3500, 114.1833 (GeoNames 1818304). Its snapshot population is 425,235, ranked 9 of 50 listed places; GeoNames classifies it as a first-order administrative seat in administrative area KWT. These facts shape the local comparable search, not the price.
What must a project estimate add?
For a Wong Tai Sin school project, reconcile teaching spaces, specialist rooms, safeguarding, sports provision and external works. Use a consistent gross-floor-area basis and record the following before reliance.
| Estimate field | Screening record | Project requirement |
|---|---|---|
| National context | ICP 2021 PLI 141.8 | Retain only as dated cross-country context |
| Local HKD/m² rate | Not supplied | Current comparable with named source and base date |
| Area and scope | Gross floor area; scope unresolved | Measurement standard, specification and procurement route |
| Additions | Not supplied | Taxes, fees, site work, contingency and escalation |
| Review | Automated source and arithmetic QA | Qualified local cost review |
Wong Tai Sin comparable-location search screen
This shortlist is computed from the checked GeoNames snapshot. Distance and population help prioritize where to request comparables; neither is used as a cost multiplier.
| Listed place | Great-circle km from Wong Tai Sin | Snapshot population | Admin area |
|---|---|---|---|
| Tsz Wan Shan | 2 | 37,242 | KWT |
| Kowloon City Centre | 2 | 194,290 | KKC |
| Kowloon City | 2 | 418,732 | KKC |
| Kowloon West End | 2 | 74,710 | KKC |
| Kai Tak | 3 | 42,552 | KKC |
| Sham Shui Po | 3 | 431,090 | KSS |
| Tseung Kwan O | 7 | 412,900 | NSK |
| Sha Tin | 4 | 495,200 | NST |
Price-level normalization worksheet
For a validated reference rate R from a country with construction PLI P, the transparent screening calculation is R × (141.8 ÷ P). At P = 100 the dimensionless ratio is 1.418; no world cost rate is asserted. Keep the reference rate's currency, base date, area basis and scope attached.
| Input | Recorded value | Release condition |
|---|---|---|
| Target national PLI | 141.8 (World = 100, 2021) | Screening context only |
| Reference construction PLI P | User-supplied from the same ICP classification/year | Must match reference rate country |
| Validated reference rate R | User-supplied | Named source, currency, date, area and scope |
| Local Wong Tai Sin adjustment | Not asserted | Replace with current local comparable evidence |
| Result status | Screening normalization | Not a budget, quote or tender estimate |
Where can you explore related guidance?
- Explore all construction costs guidance
- Office Construction Cost Planning: Wong Tai Sin, Hong Kong SAR, China
- House Construction Cost Planning: Wong Tai Sin, Hong Kong SAR, China
- Retail Construction Cost Planning: Wong Tai Sin, Hong Kong SAR, China
- School Construction Cost Planning: Kowloon City Centre, Hong Kong SAR, China
- All construction costs guidance for Hong Kong
- Daylight & Orientation: Wong Tai Sin, Hong Kong
- Solar Altitude & Azimuth: Wong Tai Sin, Hong Kong
- Solar Shading Design: Wong Tai Sin, Hong Kong
- Sun Path: Wong Tai Sin, Hong Kong
Sources and method
National screening observation from the World Bank ICP 2021 API and ICP data documentation; locality and population from the GeoNames HK dump (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 1818304). The PLI is not a city cost/m² rate, current escalation series or tender estimate.
Source links
Frequently asked questions
Does the 141.8 index give a school cost per m² for Wong Tai Sin?
No. 141.8 is the World Bank ICP 2021 national construction price-level index for Hong Kong SAR, China, with the world equal to 100. It is a cross-country screening statistic, not a Wong Tai Sin HKD/m² rate, escalation index, quote or tender estimate.
How should a Wong Tai Sin school estimate replace this screening benchmark?
Collect current Wong Tai Sin comparables on a consistent gross-floor-area basis, reconcile teaching spaces, specialist rooms, safeguarding, sports provision and external works, and state base date, currency, taxes, fees, site work, contingency and escalation. A qualified local cost professional should review the resulting project estimate.
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