ContechCost / Insights
Learn how one structured scope can carry through cost planning, tendering, buying, delivery and responsible AI—without losing the assumptions or people behind each decision.
Worked example / 500 m² slab
See the starting model, tender position, approved changes and completed outcome without losing why the price moved.
$85,000
$88,000
+$9,200
540 m²
$97,200
Illustrative figures—not a current market benchmark. The evidence chain is the point.
Anonymised project / balcony remediation
Follow a real project from drawing area to project, package and detailed resource rates—without mixing the square-metre basis.
Three connected guides
Start with an early cost guide, keep every buying tier on a common basis, carry site evidence into contract administration, then let AI help without handing over professional judgement.
Turn package returns into one common record of scope, qualifications, adjustments and decision—so price is never separated from its evidence.
The walkthrough
Start with the signed contract, map its notice rules, then connect site records, variations, claims, certification, payments and retention.
The walkthrough
What the RICS Responsible Use of AI standard means for cost work: faster preparation, structured evidence and a named professional decision.
The walkthrough
The ContechCost angle
The goal is not more administration. It is to keep the estimate, tender, contract, site records, claims and final account connected so a completed job leaves useful evidence.
Related reading
ContechData follows one slab from its built-up Tier 2 model through tender, approved changes and delivery to a reconciled Tier 1 outcome.
Follow the slab journey →Create an account for your estimates and projects, or find a construction professional.