Key ratio analysis
Capital Works Management Framework, Guidance Note, Glossary, Published by the Government of Ireland Department of Finance in 2009 suggests that:
‘Key ratio analysis is a technique that can help identify cost-efficient solutions. The output from key ratio analysis needs to be balanced with other factors such as quality and functionality in determining the final solution. The review of key ratio analysis against benchmark data can greatly assist in understanding the distribution of costs and the efficiency of the project.
An example of a key ratio analysis in the building context would involve obtaining the net to gross floor area ratio in order to assess the proportion of circulation required, which could then be compared to sector norms.
An engineering example might involve looking at the cut and fill ratio required and thus determine the cost effectiveness of a particular solution.’
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Some of the articles relating to water, here to browse. Any missing?
Recognisable characters of Gothic architecture designed to dramatically spout water away from buildings.
A case study and a warning to would-be developers
Creating four dwellings... after half a century of doing this job, why, oh why, is it so difficult?
Reform of the fire engineering profession
Fire Engineers Advisory Panel: Authoritative Statement, reactions and next steps.
Restoration and renewal of the Palace of Westminster
A complex project of cultural significance from full decant to EMI, opportunities and a potential a way forward.
Apprenticeships and the responsibility we share
Perspectives from the CIOB President as National Apprentice Week comes to a close.
The first line of defence against rain, wind and snow.
Building Safety recap January, 2026
What we missed at the end of last year, and at the start of this...
National Apprenticeship Week 2026, 9-15 Feb
Shining a light on the positive impacts for businesses, their apprentices and the wider economy alike.
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description from the experts at Cornish Lime.
IHBC planning for growth with corporate plan development
Grow with the Institute by volunteering and CP25 consultation.
Connecting ambition and action for designers and specifiers.
Electrical skills gap deepens as apprenticeship starts fall despite surging demand says ECA.
Built environment bodies deepen joint action on EDI
B.E.Inclusive initiative agree next phase of joint equity, diversity and inclusion (EDI) action plan.
Recognising culture as key to sustainable economic growth
Creative UK Provocation paper: Culture as Growth Infrastructure.























