Operational metrics

The only honest verdict

At the end of every project, two questions remain. What did it actually cost. How long did it actually take.

Everything else can be described in many ways: the quality of finishes, the care taken over details, the client's satisfaction. These things are real, and they matter. But they lend themselves to any number of different descriptions, all plausible. The final cost and the delivery date, on the other hand, are numbers: either they match what was written in the contract, or they do not.

At Renewall®, we track both figures. We record them when each project closes. And in this article I set them out openly, with the sources I used to put them in context.

This is not a performance of transparency. It is how any client choosing between several contractors should evaluate any estimate: by asking not only for the price, but for the actual figures from the last completed projects. Average cost variance. Average schedule variance. On a real sample, not anecdotes.

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Cost variance

How we measure it

Cost variance has a straightforward calculation: final cost minus estimate, divided by estimate. Measured at project close, not halfway through. The baseline is the contract signed against the bill of quantities that the client and their designer hand us before signature.

This point matters, because it defines what we are measuring: not the gap between a first rough figure and the final one, but the distance between the signed contract and the actual cost of execution.

Renewall 2025 data

On high-end residential and commercial renovation projects completed in 2025, average cost variance held at around +5.8%. This is our internal measurement; anyone wishing to verify it has the fixed-price contract as the starting document and the invoices at project close as the end document.

That 5.8% breaks down into three cost categories: unforeseen items that could not be identified during due diligence (rare, because pre-signature due diligence is the main lever we work on), variations requested by the client during construction, and design adjustments that emerged through execution. It does not include estimation errors attributable to Renewall: pre-signature discipline eliminates them, or at least we put serious effort into eliminating them.

The decisive lever comes before signature: we apply our experience to anticipate problems before the contract is closed. It is not a commercial exercise; it is the most demanding part of the work, the thing that separates a contractor that estimates well from one that does not.

Sector benchmark

The 2023 Houzz Italia Renovation Report documents average cost overruns exceeding 25% in Italian residential renovations.

I cite this figure as a structural feature of the sector, not as evidence of failings by others. The reasons for such a high variance are systemic: estimates pitched low during the commercial phase, variations not priced into the contract, subcontracting chains that distribute estimating responsibility across multiple parties without any single one bearing it directly. It is not a problem of individual dishonesty; it is a problem of how the supply chain functions when execution responsibility is delegated downwards.

The fixed-price contract locks the price on Renewall's side. Direct oversight of subcontractors, coordinated by senior in-house figures, reduces the possibility that operational decisions get passed onto the client as unplanned mid-project variations. Physical site presence closes the loop. These three mechanisms together explain why our internal figure is where it is.

Cost is half the verdict. The other half is time.

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Schedule adherence

How we measure it

Schedule variance works like cost variance: actual delivery date minus contractual date, divided by contracted duration. Measured at project close.

The baseline is the completion date stated in the offer. By "delivery" we mean the contractual end of Renewall's scope: the moment we hand the site over to the fit-out teams for the next phase. Not the end of the move-in or the first night slept in the apartment; the boundary of our scope, the one we signed.

The calculation uses a weighted average by duration and contract value, not a simple arithmetic mean. The logic is intuitive: a one-month project and a six-month project should not be treated as equal in weight. The resulting figure reflects the relative complexity of each commission.

Renewall 2025 data

On high-end residential and commercial renovation projects completed in 2025, we delivered on average 9.9 days ahead of the contractual date, equivalent to approximately -10%.

The figure is clean: variations during construction, in most cases, did not shift the delivery date. Adding close to 6% in extra cost affects the programme relatively little when planning is built with margin and tradespeople are directly coordinated. The 2025 sample contained no force majeure events: no lockdowns, no delays on critical imported supplies, no client-requested suspensions. Clean numbers.

Sector benchmark

A Banca d'Italia Working Paper (QEF n. 400, 2017) measured average delays on Italian construction projects exceeding 50% of the contracted duration. It is the only publicly available source that systematically measures this phenomenon in Italy; the private sector, generally speaking, does not disclose this metric.

This too is a structural problem: unsynchronised subcontractors, supply chains with no technical buffer stock, mid-project variations that block downstream trades, no real weekly planning. Delay is not merely inconvenient for the client; it means extended temporary accommodation, furniture in storage, family in a hotel, life on hold for weeks that stretch into months. Anyone who has lived through a project that runs months over knows this well.

The YAPA case

The YAPA restaurant is the case I cite when someone asks how the method holds up under pressure, not in ideal conditions.

The project start had already accumulated two weeks of delay, due to decisions on the client's side outside Renewall's scope. Then came a request to bring the delivery forward by one week relative to the remaining time. The total compression was around three weeks on a project most contractors would have judged impossible to recover.

The operating constraints were binding: a limited number of people on site at any one time given the space, and an obligation to guarantee the continuity of the existing restaurant in the adjacent unit, which could not stop trading. No room for standard contingency.

The solution was an optimisation of teams, a non-standard sequencing of supplies, and a willingness to take considered, calculated risks to meet the dates now imposed. It was not straightforward; but demanding projects interest us, not least because that is where the method shows more clearly than it does in normal conditions.

How we control it

Three levers: the number of concurrently active projects (max 15 per year, to avoid fragmenting site presence), the fixed-price contract with delay penalties that sets the date as a contractual commitment rather than an estimate, and the dual senior supervision I describe in the next chapter.

These two numbers, cost and time, do not emerge on their own. There is a structure around them.

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The framework

Here I set out what underpins those numbers, in order of importance.

Family building tradition from 1983

Carlo Ciciriello has worked in construction since 1983. Forty years of projects, of every kind and scale. He joined Renewall at the start of 2023 as Technical Site Director.

What Carlo brings is not a CV: it is a library built on decades of problems solved, patterns recognised, situations where he knew how far you could push and where you could not, often without needing to articulate why. That competence does not articulate easily into procedure, but it transfers through direct site presence. I observed it for twenty years before founding Renewall; now I work with it every day.

Dual senior supervision, Francesco as operational project manager and Carlo as Technical Site Director, means that two undelegated figures with distinct but complementary backgrounds are reading the site at the same moment. I bring project management experience across varied contexts; Carlo brings the technical memory of the craft. This is not a model that can be replicated with any two figures: it works because these two specific figures have worked together long enough to know what to ask of each other without having to say it.

Max 15 active projects per year

More than 15 active projects simultaneously and we would not be physically present where we need to be. It is not an ontological limit; it is an operational constraint that makes the levers described above possible. Without portfolio concentration, dual senior supervision does not work.

Professional liability insurance: €5,000,000

In the event of consequential loss, the firm's professional liability insurance covers up to €5 million. This is patrimonial protection for the client, not for the project itself. It should be read alongside the fixed-price contract: a locked price and insurance cover are the two faces of the responsibility we assume in writing.

ISO 9001 and 45001 in certification process

ISO 9001 (quality management system) and ISO 45001 (occupational health and safety management) certifications are in progress.

I do not present these as badges; they are control instruments for a process that already existed. ISO 9001 documents and makes externally verifiable the quality management system. ISO 45001 does the same for site safety. External certification does not create the system: it makes it measurable from the outside.

Published projects

Several projects we have executed have been published in national design titles. The editorial credit belongs to the designers who conceived them; Renewall® is the contractor who built those sites. I mention this not as a brand claim, but as a signal that the execution level on those projects met the standards of publications that select with care. It is contextual information, not a claim.

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The facts of the method

On Renewall's homepage there is a phrase: «the facts of the method, not generic promises». This article is the long proof of that short phrase.

In construction, there are no self-confirming brands. There are projects that close on time and on budget, or there are not. Renewall exists and works because, at the end of each project, those two numbers are recorded, communicated to the client, and kept as the measure of the work done.

Anyone choosing a contractor for a high-end renovation should ask one precise question of every party they are seeking estimates from: what is your average variance between estimate and final cost, over the last 12 to 24 months of completed projects? And your average schedule variance? Not as a provocation; as a legitimate, professional question.

The numbers tell the story of a continuous pursuit of precision in the work carried out every day, with the sole aim of meeting the client's brief, through a structured, engineered method.