Updated 2026-09-15

Construction Costs

School Construction Cost Planning: Migori, Kenya

Migori school cost planning using the World Bank ICP 2021 national construction price-level index of 64.9, 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/KEN/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 KE dump](https://download.geonames.org/export/dump/KE.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 186731). The PLI is not a city cost/m² rate, current escalation series or tender estimate.

Direct answer

For early school construction cost planning in Migori, the World Bank ICP reports a 2021 Kenya construction price-level index of 64.9, with the world equal to 100. This is a national comparison—not a Migori KES/m² rate or tender estimate—so replace it with current local evidence before budgeting or procurement. The observation covers construction across Kenya in 2021; it does not measure a Migori market basket or current school tenders. GeoNames 186731 records the locality at -1.0634, 34.4731, with snapshot population 71,668. That ranks Migori 41 of 50 listed places, while Kisii is the nearest listed peer at about 54 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 64.9 construction index mean?

The World Bank ICP 2021 construction PLI for Kenya is 64.9, 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 Migori costs 0.649 times a current world rate.

Which Migori inputs are known?

The reproducible locality point is -1.0634, 34.4731 (GeoNames 186731). Its snapshot population is 71,668, ranked 41 of 50 listed places; GeoNames classifies it as a first-order administrative seat in administrative area 36. These facts shape the local comparable search, not the price.

What must a project estimate add?

For a Migori 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 fieldScreening recordProject requirement
National contextICP 2021 PLI 64.9Retain only as dated cross-country context
Local KES/m² rateNot suppliedCurrent comparable with named source and base date
Area and scopeGross floor area; scope unresolvedMeasurement standard, specification and procurement route
AdditionsNot suppliedTaxes, fees, site work, contingency and escalation
ReviewAutomated source and arithmetic QAQualified local cost review

Migori 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 placeGreat-circle km from MigoriSnapshot populationAdmin area
Kisii54112,41725
Kisumu112397,95726
Mbale13060,00053
Khwisero138113,29420
Kakamega1531,867,57920
Busia17471,88613
Nanyuki31372,81329
Kilifi66274,27023

Price-level normalization worksheet

For a validated reference rate R from a country with construction PLI P, the transparent screening calculation is R × (64.9 ÷ P). At P = 100 the dimensionless ratio is 0.649; no world cost rate is asserted. Keep the reference rate's currency, base date, area basis and scope attached.

InputRecorded valueRelease condition
Target national PLI64.9 (World = 100, 2021)Screening context only
Reference construction PLI PUser-supplied from the same ICP classification/yearMust match reference rate country
Validated reference rate RUser-suppliedNamed source, currency, date, area and scope
Local Migori adjustmentNot assertedReplace with current local comparable evidence
Result statusScreening normalizationNot a budget, quote or tender estimate

Sources and method

National screening observation from the World Bank ICP 2021 API and ICP data documentation; locality and population from the GeoNames KE dump (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 186731). The PLI is not a city cost/m² rate, current escalation series or tender estimate.

Frequently asked questions

Does the 64.9 index give a school cost per m² for Migori?

No. 64.9 is the World Bank ICP 2021 national construction price-level index for Kenya, with the world equal to 100. It is a cross-country screening statistic, not a Migori KES/m² rate, escalation index, quote or tender estimate.

How should a Migori school estimate replace this screening benchmark?

Collect current Migori 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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