IN Brief:
- The Defence Infrastructure Organisation is reviewing the procurement structure for £6.6bn of military housing maintenance work.
- Planned improvement works could be separated from repairs and maintenance across the Service Family Accommodation estate.
- A more segmented model would widen access for specialist contractors, regional providers, and SMEs.
The Defence Infrastructure Organisation is reviewing the procurement structure for its next generation of military housing maintenance contracts, with a possible split between planned works and day-to-day repairs under consideration for a programme expected to be worth around £6.6bn.
The proposed model could reshape one of the UK’s largest public-sector property services opportunities. Rather than relying on a smaller number of large bundled agreements, DIO is examining whether defined workstreams would give specialist providers, regional contractors, and SMEs a clearer route into the Service Family Accommodation pipeline.
The programme covers repair, maintenance, and improvement activity across homes occupied by service personnel and their families. It follows sustained scrutiny over the condition of defence housing, with damp, mould, heating failures, slow repairs, and ageing assets pushing accommodation higher up the defence infrastructure agenda.
Although the estate has long been managed through large service arrangements, the commercial landscape around public maintenance contracts has shifted. Clients are under pressure to improve response times, increase transparency, reduce supplier concentration, and demonstrate better value from long-term asset spending. For an estate spread across multiple regions, property types, and condition profiles, the way contracts are packaged will shape delivery as much as the total funding available.
The review also sits against a wider reset in military housing ownership. The Ministry of Defence completed the reacquisition of the former Annington portfolio earlier this year, bringing tens of thousands of homes back under public ownership and ending the sale-and-leaseback structure created in the 1990s. Greater public control gives the department more influence over investment strategy, but it also places the scale of the refurbishment and asset management challenge more directly on government.
Separating planned works from reactive repairs would place a sharper distinction between different types of contractor capability. Planned refurbishment programmes demand design coordination, survey work, resident engagement, materials planning, decanting strategies, compliance checks, and longer programme control. Reactive repairs require local mobilisation, call handling, appointment management, urgent response, workforce density, van stock, and strong customer communication.
Combining too much of that work into a small number of national packages can simplify procurement administration, but it can also narrow competition and push risk towards companies large enough to absorb the burden. A more segmented structure could allow roofing specialists, heating contractors, fabric repair providers, ventilation installers, regional maintenance businesses, and retrofit companies to compete for work that matches their capacity.
That approach would not remove delivery risk. It would move more responsibility onto integration, contract management, data quality, and DIO’s own client-side capability. Planned works and reactive repairs often overlap inside occupied homes, especially where repeated defects reveal wider asset condition problems. If workstreams are separated, residents cannot be left navigating unclear accountability between contractors.
Military accommodation also carries operational constraints that ordinary housing maintenance contracts do not always face. Contractors must work around security requirements, access controls, safeguarding expectations, family welfare, dispersed locations, and the sensitivity of serving households. Poor repairs performance becomes more than a commercial issue when it affects personnel retention, family wellbeing, and confidence in the wider defence estate.
The procurement will be watched closely by building product manufacturers and retrofit suppliers. A programme of this scale could generate sustained demand for roofing, insulation, windows, doors, heating systems, ventilation, kitchens, bathrooms, damp remediation, electrical upgrades, drainage, external works, and estate-wide compliance improvements. Specification choices across such a large housing portfolio could influence regional supply chains for years.
The review also mirrors a broader movement in public procurement, where major clients are being encouraged to use contract structures that support competition rather than defaulting to the largest possible lots. Public bodies still need financially resilient suppliers, but resilience is not created by concentrating all workload in a narrow tier of providers. It depends on clear scopes, fair risk allocation, reliable payment, capable client teams, and supply chains with enough depth to recover when individual contractors struggle.
For DIO, the ownership reset created the opportunity to take a more active role in improving the estate. The next procurement will determine whether that control becomes visible in the homes themselves. A split model could bring more specialist focus into maintenance and refurbishment, provided the estate is managed as one asset base rather than a collection of disconnected work packages.
