New land agreement disclosure rules from 2027 will transform development transparency in England and Wales
A new era of land market transparency
For decades, the UK's development land market has operated with limited visibility. Option agreements, promotion contracts, and conditional land deals have remained largely hidden from public view, creating information asymmetries that favour well-connected developers and make it difficult for local authorities to plan effectively.
That is about to change. Under provisions within the Levelling-up and Regeneration Act 2023, England and Wales will introduce mandatory disclosure requirements for development land agreements from 2027. For the first time, options, promotion agreements, and conditional contracts over land must be registered with HM Land Registry, creating a searchable public record of development interest across the country.
What the new rules require
The 2027 regulations will mandate disclosure of several agreement types that currently remain off-register. These include option agreements granting developers the right to purchase land at a future date, promotion agreements where landowners engage specialists to secure planning permission, and conditional contracts tied to planning outcomes or other triggers.
Crucially, the disclosure requirements extend beyond simple registration. Agreement holders will need to provide details including the parties involved, the land parcels covered, the duration of arrangements, and in some cases the financial terms. This level of detail will offer stakeholders a clearer picture of where development pressure exists and who controls the pipeline.
REalyse data shows that planning applications across England and Wales span a wide range of scheme values and unit counts, from small infill developments to major residential-led regeneration projects. However, the current opacity around pre-application land agreements means that true development potential remains underestimated in many areas. The new transparency measures will help close this intelligence gap.
Implications for developers and investors
For institutional investors and residential developers, the 2027 changes will reshape competitive dynamics in the land market. Currently, those with established landowner relationships and local knowledge enjoy significant informational advantages when identifying sites. Once agreements become publicly visible, the playing field will level considerably.
This has several practical consequences. First, competition for strategically located sites may intensify as more market participants gain visibility of development opportunities. REalyse analysis of land ownership patterns indicates that sites held by overseas companies and large corporate freeholders represent a substantial share of development-suitable land in high-demand areas. When agreements over these parcels become visible, expect increased interest from competing acquirers.
Second, pricing dynamics may shift. Greater transparency typically compresses information-driven margins. Developers who previously benefited from exclusive knowledge of upcoming opportunities may find their competitive edge eroded. Conversely, landowners may gain negotiating power as they become more aware of market interest in their holdings.
Third, the regulations will improve due diligence processes. Investors and lenders will be able to verify existing encumbrances and third-party interests more easily, reducing transaction risk and potentially accelerating deal timelines.
Local authorities and housing delivery
Local planning authorities stand to benefit significantly from improved land market visibility. Currently, councils often lack insight into where developers hold options or which sites may come forward for planning applications. This hampers strategic planning and makes it difficult to coordinate infrastructure investment with housing delivery.
The disclosure requirements will enable more effective land supply monitoring. Planning authorities will be able to identify areas where development interest is concentrated and anticipate where applications are likely to emerge. This supports better local plan preparation and helps councils meet housing targets more strategically.
REalyse planning pipeline data indicates that schemes at various stages—from pre-application through to completion—represent a substantial future housing supply. However, the true pipeline extends well beyond formally submitted applications to include sites under option or promotion agreements. The 2027 regulations will bring this shadow pipeline into view for the first time.
Brownfield and green belt considerations
The transparency measures will prove particularly valuable for brownfield site identification. REalyse land data shows that brownfield parcels represent significant development potential across urban areas, yet existing option arrangements over these sites are not systematically visible. Disclosure will help councils and regeneration bodies identify where private sector interest exists and where intervention may be needed to unlock stalled sites.
Similarly, the regulations will illuminate development pressure on green belt land. While green belt boundaries remain protected by planning policy, the presence of option agreements signals landowner and developer expectations about future boundary reviews. This information will inform local plan examinations and strategic planning decisions.
Preparing for the transition
Property professionals should begin preparing now for the 2027 implementation. Key steps include auditing existing land agreements to understand disclosure obligations, reviewing confidentiality provisions in current contracts that may conflict with registration requirements, and developing systems to monitor the new register once it becomes operational.
For those using property data platforms, the integration of Land Registry disclosure data with existing planning and ownership intelligence will create powerful analytical capabilities. Combining registered agreement information with planning application pipelines, land ownership records, and market transaction data will enable more sophisticated site identification and risk assessment.
Outlook
The 2027 disclosure rules represent the most significant reform to land market transparency in a generation. While the transition will create compliance burdens and disrupt established practices, the long-term benefits for market efficiency and housing delivery are substantial.
Investors and developers who adapt their strategies to the new transparent environment will be well-positioned to thrive. Those who relied on information asymmetries may find the adjustment more challenging. Either way, the UK's development land market is entering a new era of openness—and the property sector must prepare accordingly.










