Originally published in Business News Wales on 14 May 2026.

The May 2026 Senedd election ended over 25 years of Labour dominance, bringing a clear and ambitious agenda for social housing.

Led by Rhun ap Iorwerth, Plaid Cymru will govern as a minority administration, relying on case-by-case support from other Senedd members to pass legislation.

For social housing developers, housing associations, registered providers and local authorities, this result matters.

The housing crisis inherited by Plaid Cymru

The backdrop is a sector under strain. The previous Labour Welsh Government committed to delivering 20,000 affordable homes, a target it was widely reported to be on course to miss. Waiting lists have grown, homelessness has remained persistent, and supply has not kept pace with demand.

For developers, the past several years have been characterised by rising construction costs, constrained grant funding and a complex planning environment. For housing associations, pressures on rent income, regulatory expectations and development viability have all intensified.

Plaid Cymru's victory brings a more interventionist approach, more ambitious on supply and more willing to use the levers of state investment to drive delivery.

Plaid Cymru’s key social housing commitments

• Expanding social and affordable housebuilding: Plaid Cymru has committed to significantly increasing delivery across Wales, treating housebuilding as both housing policy and economic stimulus. This signals a more generously funded development programme.
• Increasing the Social Housing Grant: Plaid Cymru has indicated a willingness to increase capital spending on housing, directly affecting scheme viability and the ability to cross-subsidise social rent units.
• Reforming the planning system: Areas to watch include revisions to Planning Policy Wales, Technical Advice Note 2, reform of the section 106 process, and potential fast-track mechanisms for social housing applications.
• Abolishing no-fault evictions: Mirroring steps taken in Scotland and the direction of travel in England, this represents a significant shift in tenure security, relevant to housing associations operating across tenures and developers of mixed-tenure schemes.
• Stronger rent controls and tenant protections: Important for tenants, but with direct implications for the financial modelling of mixed-tenure schemes. Developers and housing associations will need to stress-test business plans under a range of regulatory scenarios.

Opportunities and risks

For developers, a larger pipeline, improved grant economics and a more enabling planning system represent real opportunities. Plaid Cymru has also expressed interest in making better use of public sector land for affordable housing, which should generate procurement opportunities.

The areas to navigate carefully are viability in a more regulated market, legislative timescales under a minority government and transitional uncertainty around section 106 reform for schemes already in the pipeline.

For housing associations, a more active grant programme and longer-term strategic delivery partnerships with Welsh Government are significant positives. Associations with strong development capacity are well placed to grow their programmes.

Two minority government risks deserve specific attention from the sector.

First, the annual Budget. Under the Government of Wales Act 2006, failure to pass an annual Budget motion restricts spending to between 75 and 95 per cent of the previous year's authorised Budget, directly capping the Social Housing Grant. Business plans built around increased grant should treat Budget passage as a live risk.

Second, legislative sequencing. Rent controls and no-fault eviction reform each require primary legislation that must attract cross-party support. Reform UK, holding 34 Senedd seats, is unlikely to support either, meaning Plaid will need Labour and others.

Some commitments may be delayed or amended as the price of securing votes elsewhere. Developers and housing associations should engage early with the legislative timetable rather than waiting for final legislation, stress-test scheme viability against a scenario of capped rents, and seek early clarity on how any section 106 reforms will apply to schemes already progressing through the planning system.

A note on devolution

Housing is a devolved matter. Whatever the UK Government does in England, Wales charts its own course. With Plaid Cymru now at the helm, that course is set to diverge further from the English approach.

Developers and housing associations operating on both sides of the border need to maintain separate, Wales-specific legal and compliance frameworks. The direction of travel is clear. Now is the time to engage and to get your legal and commercial structures in order.