
← All services
Optiflow Service
Preconstruction & Feasibility
Certainty before the first excavator arrives.
Overview
What this service actually delivers.
We pressure-test scope, cost, schedule, and buildability before a single procurement decision is made. Our preconstruction teams model the project against real supply-chain conditions across Europe so that budgets survive contact with the market and the delivery plan is grounded in what contractors will actually price.
Typical value
Clients using Optiflow preconstruction close FID on average 14% below early-phase budget estimates and 4 months faster than industry benchmarks.
Deliverables
What you receive.
Engagement
Typically 8–20 weeks. Fixed fee or time-and-materials with cost-cap.
- Options and feasibility studies with lifecycle cost modelling
- Class 3–5 cost estimates aligned to AACE and NRM2
- Constructability review across civils, MEP, and systems interfaces
- Procurement route recommendation (D&B, ECI, FIDIC, alliance)
- Programme risk register with quantified schedule contingency