New Land Registry documents and media reports show lawyers for former deputy prime minister Angela Rayner increased the official valuation of her Ashton-under-Lyne constituency home by more than £150,000 last year, raising fresh questions about the paperwork surrounding property transactions that have already cost her a ministerial post.

The Land Registry entry, reported by national newspapers, records a change to the recorded value of the detached Greater Manchester house from £487,500 in May 2023 to £650,000 in April 2024. Lawyers acting for the family submitted a notice saying an earlier figure had been made in error and represented only about 75% of the property’s full value.

The change comes after the publication of a standards committee report that found Rayner had underpaid about £40,000 in stamp duty on a three-bedroom flat she bought in Hove, leading to her resignation from the cabinet. The report concluded that Rayner breached the ministerial code by failing to disclose the full circumstances and that she had not paid the correct tax liability when the property transaction was completed.

Rayner and her representatives have previously said errors in paperwork were administrative and not deliberate tax avoidance. The latest Land Registry filing, submitted by family lawyers at Swiitch according to media accounts, describes the earlier valuation as an error but does not explain how the mistaken figure was produced. The house was bought in 2016 for £375,000, records show, and the higher recorded valuation is substantially above recent market comparables in the area, prompting questions from political opponents and commentators.

Conservative politician Kemi Badenoch wrote in a national newspaper that the episode illustrated hypocrisy, arguing that Labour ministers had drafted plans over the summer to raise property-related taxes while Rayner herself had underpaid stamp duty. Badenoch said the revelations damaged Labour’s moral authority to propose increases to taxes on family homes. The newspaper column criticised how ministers initially defended Rayner before the standards finding. Representative statements from Rayner or her current legal advisers about the valuation adjustment were not published alongside the Land Registry entry.

The standards committee’s findings focused on the Hove flat transaction and concluded that Rayner had not been transparent about aspects of the deal, including the sale of a stake in her constituency house to a family trust for her disabled son. That sale and subsequent paperwork have been central to inquiries about the level of stamp duty owed and the timing of disclosures to ministers’ advisers and the Cabinet Office.

The unfolding dispute over recorded values and tax liabilities has become a feature of partisan debate in the United Kingdom, with opposition parties seizing on new documents and media reports to press for wider questions about ministerial standards and property declarations. Labour officials have said the party accepts the conclusions of the standards committee and has sought to move on, while critics say further clarity is needed on the sequence of events and the rationale for amended Land Registry entries.

The episode adds to scrutiny of politicians’ financial affairs that has been a theme in several democracies, where property transactions and tax compliance by officeholders attract close public and media attention. Legal documents in property disputes are generally a matter for the Land Registry and the parties involved; changes to registered values can follow administrative corrections, updated valuations on sale, or declarations by owners or their legal representatives.

No criminal charges have been reported in connection with the stamp duty matter; the standards committee’s report was administrative and focused on compliance with the ministerial code. Further public clarification may come if Rayner or her legal team issue more detailed statements about the revised valuation and how it relates to the earlier Hove transaction and the sale of the stake in the Ashton-under-Lyne property.