Know the opportunity
before committing to
a full engagement.
A WST Feasibility Assessment maps your portfolio's water cost exposure, estimates the recoverable savings opportunity, and scopes the programme required to capture it — before you commit to a full engagement. Five days. No upfront cost.
What Is a Feasibility Assessment?
A defined-scope diagnostic that answers
one specific question.
The question is: "Given what's visible in our billing records and portfolio profile, what is the most likely water savings opportunity — and is a full WST programme likely to be worth the management attention it requires?"
Most potential clients reach WST through a specific trigger — an unexplained billing spike, a board question about GRESB water scores, a CFO reviewing the utilities line in the operating expense schedule. The Feasibility Assessment is designed for that moment: a fast, low-cost, low-friction way to establish whether a full programme makes financial sense for your specific portfolio before the engagement is structured.
The output is a written findings summary with three components: a savings opportunity estimate (quantified by category), a risk identification summary (categories of billing exposure present), and a programme scope recommendation (what WST would do if engaged for a full programme, and the expected outcome). This is not a proposal. It is a diagnostic. The decision to proceed is made after reviewing it.
Important: The Feasibility Assessment is not a watered-down version of a full audit. It uses the same billing forensics methodology — applied to a defined subset of records. If material overcharges are identified during the assessment, those findings are documented and recoverable immediately, regardless of whether the client proceeds to a full programme.
What's Included
Three deliverables in
five business days.
A quantified estimate of the recoverable savings opportunity across four categories: billing error recovery (rate misclassifications, estimation overrides, meter accuracy), sewer exemption opportunity, operational efficiency (cooling tower, leak exposure), and GRESB data coverage gap.
Each category is expressed as an annual savings range (low/mid/high) based on the billing records reviewed and the portfolio characteristics provided. The estimate is clearly marked as preliminary — the full audit will produce verified figures.
A summary of the specific billing risk categories identified in the records reviewed — which specific error types appear to be present, which assets show anomalous consumption patterns, and which properties should be prioritised for on-site audit attention.
Where material overcharges are clearly visible in the remote review (rate misclassification, obvious estimation errors), these are documented immediately regardless of whether a full programme follows.
A clear recommendation on whether a full WST programme makes financial sense for your portfolio, and if so, what the programme should include — which services, which assets, in what sequence, with what expected outcome range.
The recommendation is honest. If the assessment suggests the savings opportunity is below the threshold where a full programme makes economic sense, WST says so. The Feasibility Assessment is not a sales document — it is a diagnostic.
When to Commission a Feasibility Assessment
Six scenarios where a
Feasibility Assessment is the right first step.
How It Works
From first contact to
findings in five days.
Next Steps After Feasibility
If the feasibility confirms a material
opportunity, these are the next steps.
you already have.
Send WST 12 months of utility bills for one property. Within 5 business days, you'll have a written estimate of the recoverable savings opportunity — with zero commitment and zero cost.