Planning decisions in England and Wales involve significant sums of money: a large residential development on greenfield land can generate tens of millions of pounds in land value uplift. The decisions are made by elected councillors, many of whom receive donations and support from local political parties that also receive developer contributions. The legal framework requires declarations of interest; it does not always prevent conflicts from influencing decisions.
The Donation Picture
Electoral Commission data on donations to local parties and councillors is publicly available. Exposed News cross-referenced donation records for 12 local authorities — selected to include metropolitan boroughs, county councils, and unitary authorities — against planning committee membership and major planning decisions in the same periods.
In eight of the twelve authorities examined, there were cases where a developer or associated individual had made donations to local party branches or directly to councillors, and planning committee members had voted to approve applications by the same developer, without a formal declaration of interest or a withdrawal from the vote. In three of these cases, the donated amount exceeded £1,000 and occurred within 12 months of the planning vote.
The analysis cannot establish causation — donations may reflect general support for a party rather than specific expectation of planning favour. But the absence of declarations is a procedural failure in itself: the Localism Act 2011 requires councillors to register and disclose financial interests that could reasonably be seen as affecting their judgement, including political party financial relationships where these involve relevant parties.
How Planning Corruption Is Investigated
Local authority misconduct in planning is investigated primarily through the council’s own standards committee, with referral to the Local Government Ombudsman (now the Local Government and Social Care Ombudsman) in serious cases. Standards committees are composed of elected councillors from the same authority, with a requirement for at least one independent member.
The structural problem is obvious: councillors investigating the conduct of fellow councillors in the same authority, with a shared interest in the authority’s reputation and political cohesion. Research published by the Centre for Public Scrutiny found that standards committees referred fewer than 3% of complaints to formal hearing in 2023/24, and that a majority of complaints were dismissed without investigation.
Police investigation of planning corruption is rare. The National Crime Agency and Serious Fraud Office have powers to investigate corruption in local government, but the threshold for investigation — which requires evidence of criminal conduct rather than procedural irregularity — is high, and resources for local government corruption are limited relative to other priorities.
The Role of Section 106
Section 106 agreements — legally binding agreements between developers and local authorities as conditions of planning permission — are a significant source of value transfer. Obligations under Section 106 can include affordable housing provision, infrastructure contributions, and community benefit payments. They are negotiated between officers and developers, with political oversight but not direct political negotiation.
The value and conditions of Section 106 agreements are not always published in detail. FOI requests submitted by Exposed News to eight local authorities for the full text of Section 106 agreements relating to major residential developments resulted in full disclosure from two, partial disclosure from four, and refusal on commercial confidentiality grounds from two. Planning law specialists consulted said the commercial confidentiality exemption was “difficult to justify” for Section 106 agreements: the planning process is public, and the public interest in understanding the terms of agreements made as conditions of planning permission is strong.
What Reform Looks Like
The Law Commission’s 2020 consultation on planning law recommended mandatory real-time publication of all Section 106 agreements; an independent national standards body for local government to replace the current self-regulation model; and automatic referral to police or the NLGSC of any standards case involving allegations of financial impropriety. None of these recommendations has been enacted. The government’s Planning and Infrastructure Bill, published in 2025, does not address the governance of planning committees or their conflicts of interest.