Corven & Ashby, cost and risk advisory

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A construction risk review for investors outside their core business

You are underwriting construction risk that sits outside your core business and outside the instruments you normally use to measure it.

How we are set up:

  • We act on the owner’s side only
  • No fee is tied to what the review concludes
Why it happens

Why a construction risk review for investors reads the contract, not the model

A financial model carries a construction cost as one line. The contract decides how far that line can move.

The model treats cost as a point

A single figure with a contingency percentage says nothing about which parts of the price are bought and which are still an estimate.

Sponsor reports are selective

Summaries prepared by the sponsor are accurate and selective. They report progress toward completion, and they do not report exposure.

Four documents carry the risk

The qualifications page, the allowance schedule, the procurement log and the change terms describe more of the downside than the model does.

The position you are in

The model cannot show you what the contract left open

Your model has a construction cost line, a contingency line and a sensitivity that flexes both. What it cannot tell you is the probability attached to that sensitivity, and the probability does not live in a spreadsheet.

It lives in a set of documents describing what the price covers, how much of the work is bought, and who pays when something moves. Every one of those documents existed before you funded.

Real overruns are also lumpy rather than smooth. One uncapped exclusion or one underpriced allowance produces most of the variance on a typical job, so a model that only tests a smooth percentage is testing the least likely shape.

What you usually ask us

The four questions we hear most

Every one of them is answerable from documents you already hold, which is why the reading runs without asking the contractor for anything.

  1. What is the realistic range, rather than the point estimate?
  2. How much of this price can still move?
  3. Which three exposures account for most of the width?
  4. Who has read these documents who is not the sponsor or the contractor?
How it works for you

What we read, and what you get

What we read

The qualifications page, the buyout log, the allowance schedule and the change order clause, set against the sponsor budget rather than against a benchmark.

What you get

The open exposure as a range built from named items, each with a low and a high, so your sensitivity runs on the actual shape of the risk rather than on a percentage.

Who we act for

Owners and capital only, never contractors. We do not price work and we do not bid, so there is nothing on the job we are protecting except your position.

See how a review is bought
Written for you

Three pieces from the same desk

Short notes on the mechanisms behind the questions above, written from the owner side of the contract.

What you end up with

What you underwrite against

A range for the final number, not a point estimate.

The exposure in your terms

Findings translated into capital: what each could cost, how likely it is, and when you would find out.

Questions for the sponsor

The specific points to raise before committing, grounded in the documents rather than in a general concern.

A view you can revisit

The same register read monthly after signature, if you want to know when an exposure starts to arrive.

The other three

One position, four different rooms

The register is written the same way every time. What changes is who the memo has to survive being read by. The overview page sets out all four side by side.