Seattle Teachers Authorise Strike Over Class Sizes and Special Education Cuts – What London Planners Should Note

Teachers in Seattle have authorised a strike after contract negotiations with Seattle Public Schools (SPS) broke down on the evening of 29 August, with the district walking away from the bargaining table. The Seattle Education Association (SEA), which represents around 6,000 educators and support staff, has been bargaining daily from 9am to 9pm since mid-August. The first day of school is scheduled for 2 September.

The dispute centres on two core issues: pressurisation – a term covering increased workload from larger class sizes, higher caseloads and additional duties – and wages that have not kept pace with Seattle’s soaring housing costs. SEA has agreed on only 12 of 57 bargaining items, and the union’s bargaining team now has a strike authorisation. If a strike proceeds, it would be the third in 11 years for the district.

For London readers, the Seattle dispute is not merely a distant labour story. It highlights structural pressures that are equally present in the UK capital: the affordability crisis for public-sector workers, the mismatch between school capacity and housing growth, and the limits of local funding models when central government tightens budgets. London’s borough planning authorities, the Greater London Authority (GLA) and the Department for Education all face variants of the same questions.

Key facts

Pressurisation and the classroom environment

The most immediate issue for Seattle teachers is pressurisation. SEA describes it as “increases in caseload, class size, and other demands that take their time and focus away from students and lead to educator burnout.” One special education teacher told the union that “last year was the worst teacher year of my life due to an unsustainable and unsupported SpEd caseload.”

In London, the problem takes a different form but has similar consequences. Boroughs such as Newham, Barking and Dagenham, and Haringey have reported secondary school class sizes above 30 in core subjects due to demographic pressure and a lack of new school places. The Education Policy Institute’s 2024 annual report found that London secondary schools are significantly more likely to have oversubscribed year groups than schools in other English regions.

The spatial dimension is often overlooked. School capacity is a land-use planning issue. When a borough approves a large housing development without securing sufficient school places, the result is overcrowded classrooms, longer commutes for students, or both. The GLA’s School Place Planning team produces annual projections, but these are non-binding on boroughs. Seattle’s experience suggests that without enforceable caps backed by funding, class sizes drift upward.

Special education as a civil rights issue

SEA frames special education provision as a civil rights matter. Students with Individual Education Plans have a legal right to appropriate support, and the union argues that SPS is failing to meet that right by not staffing co-teaching models with Special Education-endorsed teachers. The union also notes that vacancies and leaves are not covered, leaving students without qualified support.

In London, the equivalent framework is the Children and Families Act 2014, which requires local authorities to issue Education, Health and Care (EHC) plans for children with significant needs. The number of EHC plans in London has risen by 30% since 2020, according to the Department for Education. Yet the National Audit Office reported in 2024 that many London boroughs are unable to deliver the provision specified in plans due to staffing shortages, particularly in specialist teaching and educational psychology.

The planning system interacts with SEND provision in several ways. New schools and special-school expansions require planning permission. Boroughs can use developer contributions (Section 106 agreements and the Community Infrastructure Levy) to fund school places, but these are typically allocated to mainstream capacity, not specialist provision. The result is that SEND places are often an afterthought in large housing schemes.

Housing costs and the teacher workforce

The wage dispute in Seattle is fundamentally about housing. SEA says its members are “not looking for a massive raise” but a cost-of-living adjustment so that lower-paid workers can afford to live in the communities they serve. Seattle’s median rent for a one-bedroom apartment is approximately $1,800 per month, and teacher starting salaries are around $60,000 – leaving little room for rent, let alone homeownership.

London’s situation is structurally similar but more acute. Median teacher salary in London is approximately £45,000, while median house price exceeds £600,000. The GLA’s 2025 Housing Strategy identifies key workers, including teachers, as a priority group for affordable housing, but delivery remains far below need. The London Plan sets a target that at least 50% of new homes should be genuinely affordable, but annual completions have fallen short of this benchmark every year since the plan was adopted.

The geographical concentration of affordable housing is also an issue. Many key-worker housing schemes are located in outer boroughs or on brownfield sites far from the schools where teachers work. This creates long commutes and, for some, a decision to leave London entirely. The Department for Education’s teacher retention data shows that London has the highest rate of teacher attrition in England, with housing costs cited as a primary factor.

State funding and the limits of local action

SEA’s analysis points to state-level underfunding as the root cause. Washington State voters approved smaller class sizes through Initiative 1351 in 2014, but the state legislature left the initiative unfunded, delayed its implementation in 2015, and repealed the cap in 2017. The union argues that the state’s tax code is regressive: corporations like Microsoft pay an effective rate of 2.4%, while low-income households pay 13.8%.

In England, school funding is set nationally through the National Funding Formula, which gives London schools a higher per-pupil allocation than other regions but has not kept pace with rising costs, particularly for special educational needs and staff pay. Boroughs have limited ability to supplement this through local taxation. The Business Rates Retention scheme allows councils to keep a proportion of business rates growth, but this is volatile and unevenly distributed.

The GLA has some influence through its powers over strategic planning, housing and skills, but it does not control school funding. The London Plan can require boroughs to assess school place need as part of development proposals, but enforcement is weak. Seattle’s experience suggests that without a funding mechanism tied to enforceable class-size caps, the gap between policy intention and classroom reality widens.

What London planners and policymakers can take from this

The Seattle dispute is not a direct analogue, but it illustrates several dynamics that are relevant to London.

First, the link between housing affordability and public-service workforce stability is direct and measurable. If London cannot deliver enough affordable housing for teachers, social workers, nurses and other key workers, the quality of public services will decline. Boroughs and the GLA should monitor teacher turnover rates by ward and cross-reference them with local housing delivery data.

Second, school place planning must be integrated with housing delivery at the site-specific level, not just through borough-level projections. Seattle’s class-size problem is partly a consequence of underfunding, but it is also a consequence of planning decisions that allowed housing development without corresponding school capacity.

Third, special educational needs provision requires dedicated capital and revenue funding that is not easily met through developer contributions alone. The SEND crisis in London will not be solved by Section 106 agreements. It requires a national funding settlement and a spatial strategy that identifies where specialist places are needed.

Fourth, the Seattle union’s argument that “working conditions are learning conditions” has a spatial corollary: overcrowded schools in high-cost cities produce both educational and planning failures. London’s growth agenda depends on functional public services, and functional public services depend on planners and policymakers treating school capacity as a hard constraint, not an afterthought.

Source: The Urbanist, “Op-Ed: From the Bargaining Table to Olympia, Educators Need Our Support Now,” 30 August 2026. https://www.theurbanist.org/op-ed-from-the-bargaining-table-to-olympia-educators-need-our-support-now/