Retail Construction Cost Planning: Yenagoa, Nigeria

Yenagoa retail cost planning using the World Bank ICP 2021 national construction price-level index of 72.8, 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/NGA/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 NG dump](https://download.geonames.org/export/dump/NG.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 2318123). The PLI is not a city cost/m² rate, current escalation series or tender estimate.

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Direct answer

For early retail construction cost planning in Yenagoa, the World Bank ICP reports a 2021 Nigeria construction price-level index of 72.8, with the world equal to 100. This is a national comparison—not a Yenagoa NGN/m² rate or tender estimate—so replace it with current local evidence before budgeting or procurement. The observation covers construction across Nigeria in 2021; it does not measure a Yenagoa market basket or current retail tenders. GeoNames 2318123 records the locality at 4.9268, 6.2676, with snapshot population 365,000. That ranks Yenagoa 44 of 50 listed places, while Port Harcourt is the nearest listed peer at about 84 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 72.8 construction index mean?

The World Bank ICP 2021 construction PLI for Nigeria is 72.8, 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 retail work in Yenagoa costs 0.728 times a current world rate.

Which Yenagoa inputs are known?

The reproducible locality point is 4.9268, 6.2676 (GeoNames 2318123). Its snapshot population is 365,000, ranked 44 of 50 listed places; GeoNames classifies it as a first-order administrative seat in administrative area 52. These facts shape the local comparable search, not the price.

What must a project estimate add?

For a Yenagoa retail project, reconcile shell condition, tenant fit-out, servicing, trading constraints and landlord 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 72.8	Retain only as dated cross-country context
Local NGN/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

Yenagoa 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 Yenagoa	Snapshot population	Admin area
Port Harcourt	84	2,120,000	50
Warri	87	910,000	36
Owerri	105	545,000	28
Aba	123	1,160,000	45
Onitsha	148	1,553,000	25
Gboko	403	365,000	26
Iseyin	449	365,300	32
Umuahia	151	370,000	45

Price-level normalization worksheet

For a validated reference rate R from a country with construction PLI P, the transparent screening calculation is R × (72.8 ÷ P). At P = 100 the dimensionless ratio is 0.728; 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	72.8 (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 Yenagoa adjustment	Not asserted	Replace with current local comparable evidence
Result status	Screening normalization	Not 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 NG dump (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 2318123). The PLI is not a city cost/m² rate, current escalation series or tender estimate.

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Frequently asked questions

Does the 72.8 index give a retail cost per m² for Yenagoa?

No. 72.8 is the World Bank ICP 2021 national construction price-level index for Nigeria, with the world equal to 100. It is a cross-country screening statistic, not a Yenagoa NGN/m² rate, escalation index, quote or tender estimate.

How should a Yenagoa retail estimate replace this screening benchmark?

Collect current Yenagoa comparables on a consistent gross-floor-area basis, reconcile shell condition, tenant fit-out, servicing, trading constraints and landlord 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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