# House Construction Cost Planning: Ivory Park, South Africa > Ivory Park house cost planning using the World Bank ICP 2021 national construction price-level index of 71.3, plus a GeoNames-based local comparable-search shortlist. - Canonical: https://harth.build/resources/construction-costs/house-construction-cost-ivory-park-za/ - Last updated: 2026-09-15 - Data source: National screening observation from the [World Bank ICP 2021 API](https://api.worldbank.org/v2/sources/90/country/ZAF/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 ZA dump](https://download.geonames.org/export/dump/ZA.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 11204237). The PLI is not a city cost/m² rate, current escalation series or tender estimate. ## Key facts | Fact | Value | | --- | --- | | National construction PLI | 71.3 (World Bank ICP 2021; World = 100) | | Screening ratio to world | 0.713 (dimensionless PLI ÷ 100; not a city location factor) | | Locality reference | -25.9957, 28.1971 (GeoNames ID 11204237) | | Snapshot population | 184,383 (40 of 50 listed South Africa places) | | Nearest listed peer | Thembisa · 3 km (great-circle distance between GeoNames reference points) | | Estimate currency | ZAR (obtain a current local rate and named base date) | ## Direct answer For early house construction cost planning in Ivory Park, the World Bank ICP reports a 2021 South Africa construction price-level index of 71.3, with the world equal to 100. This is a national comparison—not a Ivory Park ZAR/m² rate or tender estimate—so replace it with current local evidence before budgeting or procurement. The observation covers construction across South Africa in 2021; it does not measure a Ivory Park market basket or current house tenders. GeoNames 11204237 records the locality at -25.9957, 28.1971, with snapshot population 184,383. That ranks Ivory Park 40 of 50 listed places, while Thembisa is the nearest listed peer at about 3 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](https://nz.linkedin.com/in/barrington), Harth founder and architectural technology specialist · Published 2026-08-26 · Updated 2026-09-15.* ## What does the 71.3 construction index mean? The World Bank ICP 2021 construction PLI for **South Africa is 71.3**, 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 house work in Ivory Park costs 0.713 times a current world rate. ## Which Ivory Park inputs are known? The reproducible locality point is **-25.9957, 28.1971** (GeoNames 11204237). Its snapshot population is **184,383**, ranked 40 of 50 listed places; GeoNames classifies it as a section of a populated place in administrative area 06. These facts shape the local comparable search, not the price. ## What must a project estimate add? For a Ivory Park house project, reconcile dwelling size, structural system, envelope specification, kitchens and bathrooms. Use a consistent gross-floor-area basis and record the following before reliance. | Estimate field | Screening record | Project requirement | | --- | --- | --- | | National context | ICP 2021 PLI 71.3 | Retain only as dated cross-country context | | Local ZAR/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 | ## Ivory Park 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 Ivory Park | Snapshot population | Admin area | | --- | ---: | ---: | --- | | Thembisa | 3 | 511,655 | 06 | | Centurion | 15 | 236,580 | 06 | | Alexandra | 16 | 179,624 | 06 | | Diepsloot | 20 | 350,000 | 06 | | Randburg | 22 | 337,053 | 06 | | Springs | 35 | 186,394 | 06 | | Carletonville | 90 | 182,304 | 06 | | George | 1,044 | 188,580 | 11 | ## Price-level normalization worksheet For a validated reference rate **R** from a country with construction PLI **P**, the transparent screening calculation is **R × (71.3 ÷ P)**. At P = 100 the dimensionless ratio is 0.713; 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 | 71.3 (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 Ivory Park 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](https://harth.build/resources/construction-costs.md) - [Office Construction Cost Planning: Ivory Park, South Africa](https://harth.build/resources/construction-costs/office-construction-cost-ivory-park-za.md) - [School Construction Cost Planning: Ivory Park, South Africa](https://harth.build/resources/construction-costs/school-construction-cost-ivory-park-za.md) - [Retail Construction Cost Planning: Ivory Park, South Africa](https://harth.build/resources/construction-costs/retail-construction-cost-ivory-park-za.md) - [House Construction Cost Planning: Thembisa, South Africa](https://harth.build/resources/construction-costs/house-construction-cost-thembisa-za.md) - [All construction costs guidance for South Africa](https://harth.build/resources/construction-costs/south-africa.md) - [Climate Design Data: Ivory Park, South Africa](https://harth.build/resources/climate-data/climate-design-data-ivory-park-za.md) - [Sun Path: Ivory Park, South Africa](https://harth.build/resources/solar-data/sun-path-ivory-park-za.md) ## Sources and method National screening observation from the [World Bank ICP 2021 API](https://api.worldbank.org/v2/sources/90/country/ZAF/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 ZA dump](https://download.geonames.org/export/dump/ZA.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 11204237). The PLI is not a city cost/m² rate, current escalation series or tender estimate. ### Source links - [api.worldbank.org](https://api.worldbank.org/v2/sources/90/country/ZAF/classification/PX.WL/series/1501200/time/YR2021/data?format=json) - [worldbank.org](https://www.worldbank.org/en/programs/icp/data) - [download.geonames.org](https://download.geonames.org/export/dump/ZA.zip) ## Frequently asked questions ### Does the 71.3 index give a house cost per m² for Ivory Park? No. 71.3 is the World Bank ICP 2021 national construction price-level index for South Africa, with the world equal to 100. It is a cross-country screening statistic, not a Ivory Park ZAR/m² rate, escalation index, quote or tender estimate. ### How should a Ivory Park house estimate replace this screening benchmark? Collect current Ivory Park comparables on a consistent gross-floor-area basis, reconcile dwelling size, structural system, envelope specification, kitchens and bathrooms, and state base date, currency, taxes, fees, site work, contingency and escalation. A qualified local cost professional should review the resulting project estimate. --- - Continue in Harth (open this topic in the Harth agent): https://app.harth.build/agent?context=%2Fresources%2Fconstruction-costs%2Fhouse-construction-cost-ivory-park-za%2F - View this page in a browser: https://harth.build/resources/construction-costs/house-construction-cost-ivory-park-za/ - All resources for agents: https://harth.build/llms.txt