The government has promised a rewrite of the Crichel Down rules by spring 2027, as part of a fresh attempt to release surplus Ministry of Defence land for housing. The commitment appears in the UK Budget published on Wednesday 28 October 2026. No replacement rules have yet been issued.
The announcement concerns the sale and transfer of public land, not a new planning permission or an immediate change to permitted development rights. The current English guidance also has a limited application to land in Wales held by UK government departments. Separate Scottish arrangements should not be assumed to change merely because the UK Budget refers to defence land.
I think the practical importance is in the sequence of land release. The Crichel Down rules can require a public body to offer land back to a previous owner before putting it on the open market. That can materially affect the timetable, site control and price assumptions behind a redevelopment project.
What has the Budget promised on the Crichel Down rules?
The Budget 2026 document states that there will be “updated Rules to be brought in by spring 2027”. That is the Treasury’s wording, and it refers to a future change rather than rules already in force. It identifies reform as one measure for accelerating the release of surplus defence and other public-sector land. Its precise timetable is for revised rules, not for completion of the housing that might follow.
The Budget also announces a renewed Defence Housing Tripartite Taskforce, involving the Ministry of Defence, HM Treasury and the Ministry of Housing, Communities and Local Government. It refers to a new strategic partnership between the Defence Ministry and Homes England, and a closer role for the National Housing Bank. Taken together, those measures are intended to move land from an asset-management decision towards a workable housing proposal.
There is an important gap in the announcement. Ministers have not yet published draft replacement wording, transitional provisions or a list of estates affected. We cannot know whether the revised Crichel Down rules will change eligibility, exceptions, notice procedures, valuation, time limits or some narrower aspect of administration. That should not be guessed from the government’s desire to speed up disposal.
How the current offer-back system works
The existing Crichel Down rules are non-statutory arrangements published by the housing department in October 2024. They principally concern surplus government land acquired compulsorily, under threat of compulsion or through specified statutory blight procedures. Depending on the circumstances, previous owners or successors may have an opportunity to buy it back at current market value before a wider disposal.
Crucially, a former owner’s opportunity is not an unconditional right to reclaim every parcel ever held by the government. The guidance considers matters including changes in the character of the site, acquisition dates, categories of land and specified public-interest exceptions. It also contains procedures for locating former owners, making offers, negotiating terms and moving to the open market if no agreement is reached.
For example, Rule 10 provides that former owners may receive the first opportunity to repurchase land that has not materially changed in character. Rule 14 includes time limits and land-specific distinctions. Rule 15 contains exceptions, including circumstances where public-interest disposal to a body with compulsory purchase powers is authorised. Each case therefore needs an examination of the original acquisition, the land’s history and the proposed route of disposal.
The Ministry of Defence’s own guidance confirms that its Defence Infrastructure Organisation considers whether the rules apply before offering surplus sites to outside purchasers. A published disposal intention is not, by itself, proof that the offer-back process has been completed or that an exception applies.
What the Crichel Down rules reform means for housing
The government’s wider ambition is sizeable. The Defence Housing Strategy announced in November 2025 identified potential capacity for more than 100,000 homes on surplus defence land, for civilian and military households. That figure describes long-term capacity across a programme, not 100,000 dwellings already approved, funded or ready to build.
Budget 2026 names Feltham and Chetwynd Barracks as examples of strategic locations where the Defence Housing Service may work with local authorities and mayors. It does not announce fresh planning consent for either site, and it would be premature to assign a delivery date or housing total to those examples without the individual project documents.
The housing question is not settled when a site can legally be sold. Former military land may still need a new development-plan allocation, planning permission, environmental assessment, remediation, highway works, utilities and a viable affordable-housing offer. Planning Geek’s affordable housing guide explains one of the separate planning policy considerations that can affect a scheme after land ownership has been resolved.
Nor does a government disposal commitment automatically supersede local planning policy. A council may support regeneration in principle while still requiring acceptable density, design, transport, heritage and infrastructure outcomes. Project delivery also depends on what land the armed forces can genuinely release without compromising operational requirements.
What landowners and developers should examine
Anyone evaluating a former public-sector site should identify how it entered government ownership, whether there was a compulsory purchase power at the relevant time, and whether the land is genuinely surplus. The acquisition documents, present title, any former owners and the physical changes since acquisition can all be relevant to the offer-back question.
A prospective purchaser should also look for the department’s published disposal position and any completed Crichel Down rules assessment. If a government agency relies on an exception, ask what decision and supporting authority it has recorded. Unresolved offer-back questions can influence exchange conditions, valuation assumptions and whether a promised site is actually available.
Former owners should not assume that the Budget announcement has removed existing procedural protections. The 2024 rules remain the published framework unless and until they are replaced or amended. Equally, it would be unsafe to assume that every historic owner has an enforceable entitlement to buy land back. The factual circumstances and applicable guidance are decisive.
The distinction matters for public-sector development partners too. A local authority, Homes England or a housing association may reasonably want more certainty on title and disposal powers before spending heavily on design and infrastructure work. Getting the ownership sequence wrong can waste time even where the planning merits are strong.
What needs watching before spring 2027?
The next meaningful event will be publication of the proposed revised text or a formal government explanation of its operation. That will tell us whether the reform changes who qualifies for an offer back, when an exception can be used, or how long an authority must wait before proceeding with a disposal.
It is also important to see whether transitional protection is included for disposals already under consideration. A government department working through the existing Crichel Down rules today may have very different options from one beginning a disposal after the new guidance takes effect.
For now, this is a firm Budget commitment to review the process, not an operative legal reform. The housing opportunity could be substantial, but it will be measured by individual land releases, planning decisions and completed homes, not by the headline capacity figure alone.
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