Construction Costs
School Construction Cost Planning: Tallaght, Ireland
Tallaght school cost planning using the World Bank ICP 2021 national construction price-level index of 152.8, plus a GeoNames-based local comparable-search shortlist.
On this page
Last updated September 15, 2026 · National screening observation from the [World Bank ICP 2021 API](https://api.worldbank.org/v2/sources/90/country/IRL/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 IE dump](https://download.geonames.org/export/dump/IE.zip) (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 2961284). The PLI is not a city cost/m² rate, current escalation series or tender estimate.
Direct answer
For early school construction cost planning in Tallaght, the World Bank ICP reports a 2021 Ireland construction price-level index of 152.8, with the world equal to 100. This is a national comparison—not a Tallaght EUR/m² rate or tender estimate—so replace it with current local evidence before budgeting or procurement. The observation covers construction across Ireland in 2021; it does not measure a Tallaght market basket or current school tenders. GeoNames 2961284 records the locality at 53.2859, -6.3734, with snapshot population 81,022. That ranks Tallaght 6 of 50 listed places, while South Dublin 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 152.8 construction index mean?
The World Bank ICP 2021 construction PLI for Ireland is 152.8, 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 Tallaght costs 1.528 times a current world rate.
Which Tallaght inputs are known?
The reproducible locality point is 53.2859, -6.3734 (GeoNames 2961284). Its snapshot population is 81,022, ranked 6 of 50 listed places; GeoNames classifies it as a second-order administrative seat in administrative area L. These facts shape the local comparable search, not the price.
What must a project estimate add?
For a Tallaght 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 152.8 | Retain only as dated cross-country context |
| Local EUR/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 |
Tallaght 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 Tallaght | Snapshot population | Admin area |
|---|---|---|---|
| South Dublin | 2 | 301,075 | L |
| Knocklyon | 3 | 14,628 | L |
| Templeogue | 4 | 18,076 | L |
| Clondalkin | 5 | 14,508 | L |
| Rathfarnham | 6 | 17,333 | L |
| Galway | 178 | 85,910 | C |
| Limerick | 166 | 102,287 | M |
| Waterford | 125 | 60,079 | M |
Price-level normalization worksheet
For a validated reference rate R from a country with construction PLI P, the transparent screening calculation is R × (152.8 ÷ P). At P = 100 the dimensionless ratio is 1.528; 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 | 152.8 (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 Tallaght 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: Tallaght, Ireland
- House Construction Cost Planning: Tallaght, Ireland
- Retail Construction Cost Planning: Tallaght, Ireland
- School Construction Cost Planning: South Dublin, Ireland
- All construction costs guidance for Ireland
- Climate Design Data: Tallaght, Ireland
- Daylight & Orientation: Tallaght, Ireland
- Solar Altitude & Azimuth: Tallaght, Ireland
- Solar Shading Design: Tallaght, Ireland
Sources and method
National screening observation from the World Bank ICP 2021 API and ICP data documentation; locality and population from the GeoNames IE dump (CC BY 4.0 snapshot 2026-08-26, GeoNames ID 2961284). The PLI is not a city cost/m² rate, current escalation series or tender estimate.
Source links
Frequently asked questions
Does the 152.8 index give a school cost per m² for Tallaght?
No. 152.8 is the World Bank ICP 2021 national construction price-level index for Ireland, with the world equal to 100. It is a cross-country screening statistic, not a Tallaght EUR/m² rate, escalation index, quote or tender estimate.
How should a Tallaght school estimate replace this screening benchmark?
Collect current Tallaght 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.
Related pages
- School Construction Cost Planning: Taguig, Philippines
Taguig school cost planning: World Bank ICP 2021 construction PLI 49.3 (World=100), scope limits and 8 GeoNames comparison locations.
- School Construction Cost Planning: Tai Po, Hong Kong SAR, China
Tai Po school cost planning: World Bank ICP 2021 construction PLI 141.8 (World=100), scope limits and 8 GeoNames comparison locations.
- School Construction Cost Planning: Taiping, Malaysia
Taiping school cost planning: World Bank ICP 2021 construction PLI 44.5 (World=100), scope limits and 8 GeoNames comparison locations.
- School Construction Cost Planning: Taman Petaling, Malaysia
Taman Petaling school cost planning: World Bank ICP 2021 construction PLI 44.5 (World=100), scope limits and 8 GeoNames comparison locations.
- School Construction Cost Planning: Tampines Estate, Singapore
Tampines Estate school cost planning: World Bank ICP 2021 construction PLI 97.6 (World=100), scope limits and 8 GeoNames comparison locations.
- School Construction Cost Planning: Tampines New Town, Singapore
Tampines New Town school cost planning: World Bank ICP 2021 construction PLI 97.6 (World=100), scope limits and 8 GeoNames comparison locations.