OPDA: 2025 Was the Talking. Now Comes the Delivery

For several years the conversation about digital property data has been long on ambition and short on plumbing. That balance is shifting. The Open Property Data Association (OPDA) has set out a clear position: the standards work, trust framework and accreditation regime that occupied 2025 are now moving out of pilot and into practice, with delivery groups tasked to make them real.

Why the timing matters

The government has committed to mandatory digital property transactions by 2029. That is not a distant target when set against the pace of change in conveyancing. It implies that the information a conveyancer relies on at the start of a transaction — title, tenure, searches, planning history, building safety, local authority records — will increasingly arrive as structured, machine-readable, provenance-stamped data rather than as a PDF that someone has to read, interpret and re-key.

For firms, the practical question is not whether to engage but when. Property data standards only deliver value if the parties consuming them trust what they are given. That is precisely the problem the trust framework and accreditation work is designed to solve.

Standards, trust and accreditation

OPDA's data standard gives a common language for describing property information so that a lender, a conveyancer, an agent and a search provider can exchange the same fields without translation losses. The trust framework layers on the harder question: who produced this data, when, from what source, and on what basis can a professional rely on it?

Accreditation is the mechanism that makes those assurances checkable. A conveyancer who receives an accredited data set should be able to see its provenance and understand the assurances attached to it — rather than assuming a level of reliability the data was never built to carry. In a profession where negligence claims frequently turn on what was known, when, and from where, provenance is not a technical nicety. It is a risk control.

The searches and local authority piece

Of particular interest to conveyancers is the dedicated delivery group focused on searches and local authority data sharing. This is where the friction has always been most visible. Turnaround times vary enormously between authorities, formats are inconsistent, and the same underlying records can be presented in materially different ways depending on who supplies them.

Standardising how local authority data is described and shared is a slow, unglamorous piece of work. It involves engaging with hundreds of authorities operating on different systems with different resourcing. But it is arguably the single highest-value intervention available, because upfront information is only genuinely useful if it is complete, comparable and available at the point the transaction begins rather than six weeks in.

What conveyancers should be thinking about

Three things are worth considering now, rather than in 2028.

How you source information. If more data arrives in structured form, the value of a search provider shifts from retrieval towards curation, interpretation and integration with your case management system. Ask providers how they are engaging with emerging standards.

How you verify it. Structured data does not remove the need for professional judgement; it changes where that judgement is applied. Firms will need clear internal positions on what accredited data they will rely on and what they will continue to check independently.

How you evidence reliance. If a transaction is later challenged, the audit trail matters. Data with attached provenance is easier to defend than a PDF of uncertain vintage. Build file-keeping habits that capture that provenance rather than flattening it.

Realistic expectations

None of this will land in a single moment. Adoption will be uneven, some authorities will move faster than others, and legacy processes will persist alongside new ones for years. The firms that fare best will be those that treat the transition as incremental — adopting structured data where it is available and reliable, while maintaining robust processes for everything else.

What has changed is that the direction is no longer speculative. Standards exist, governance is being built, a delivery timetable is public, and a statutory deadline sits behind it. The question for conveyancers has moved from whether upfront digital information will reshape the transaction to how quickly their own workflows can absorb it.

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