PropEco has launched EPC Audit, a tool designed to identify and correct errors in energy performance certificates (EPCs) that the company says are undermining property values and creating financial risks.
The firm highlighted that EPCs are playing a growing role in buying decisions, valuations and mortgage assessments as the UK works towards decarbonising its housing stock.
Research has shown that homes with an A rating can attract price premiums of 12% or more compared with lower-rated properties.
According to PropEco, more than half of EPCs contain at least one significant error, which can misrepresent running costs, retrofit options and liveability, while also affecting market value. In many cases, correcting these errors results in properties being downgraded to a lower EPC rating.
Chris Hardman, director at PropEco, said: “Incorrect EPC data isn’t just a clerical error; it’s a financial liability waiting to happen.
“A downgraded EPC rating can slash property value overnight, derail sales, or push landlords into non-compliance with minimum energy efficiency standards, increasing mortgage default risk.
“PropEco’s EPC Audit tool is designed to flag the many identifiable issues within EPCs, helping stakeholders spot hidden opportunities as well as avoid costly mistakes.”
The system, built on PropEco’s Enhanced EPC dataset, applies hundreds of automated checks to identify inconsistencies that could impact property value or utility.
The company said this enables surveyors, valuers, lenders and buyers to make better-informed decisions while managing the risk of unexpected devaluations or costly retrofit obligations.
Hardman added: “Lenders increasingly tie mortgage rates to EPC bands A-C but relying on flawed EPC data creates a huge risk.
“PropEco’s EPC Audit tool is designed to ensure that assessments reflect reality, protecting all stakeholders in the property transaction and future-proofing lending books.”
EPC Audit is now available through the PropEco platform, offering API integration, bulk data downloads for portfolio analysis, and a browser-based Data Explorer.
