The 2023 elections materially changed the balance of English local government
Elections were held across 230 councils in England. The Conservatives suffered major losses, while Labour, the Liberal Democrats and Greens advanced. Labour became the largest party in local government in Great Britain, and councils under no overall control became more common than councils controlled outright by a single party.
This is a historical election analysis, not a statement of current council control
Council politics has continued to move since May 2023 through later elections, by-elections, defections, resignations and structural change. The figures below describe the election period; use Oscar's current political data for today's position.
Why the 2023 elections were significant
The May 2023 elections covered a particularly large part of the English local-government map.
According to the House of Commons Library, elections were held in 230 councils in England. More than 8,000 council seats were contested, alongside four local mayoral elections.
English councils held elections on 4 May 2023.
Council seats were contested across England during the election round.
Local mayoral elections were also held.
The scale matters because the election did not simply alter a handful of authorities. It shifted the national balance of local-government representation.
What changed politically?
The broad pattern was clear: Conservatives lost substantial ground, while Labour, the Liberal Democrats and Greens gained seats.
The House of Commons Library's post-election analysis recorded the Conservatives losing 1,063 seats, Labour gaining 537, and the Liberal Democrats gaining 407.
The result also changed council control. Labour went from controlling 57 councils in 2019 to 71 after the 2023 elections, while Conservative majority control fell from 89 councils to 33.
For the first time in recent history, councils in Great Britain were more likely to have no overall control than to be controlled outright by one political party.
Why “no overall control” matters
No overall control means no single party holds a majority of council seats.
It does not mean the authority has no political administration.
A council under no overall control may be run by:
- a formal coalition;
- a minority administration;
- a confidence-and-supply style agreement;
- a loose working arrangement between groups;
- an administration that changes later in the council term.
That distinction became increasingly important after the 2023 elections because raw seat totals no longer told the whole governance story for a large number of councils.
What did the Green and independent vote tell us?
One of the notable themes in Oscar's original review was the growth of the Green Party and movement among independent councillors.
That was useful because it highlighted something national headlines can miss: local politics is not simply a smaller version of Westminster politics.
Independent councillors, local groups and smaller parties can hold pivotal positions in individual councils, particularly where no party has an overall majority.
Why Oscar cared about boundary changes too
The 2023 election cycle also coincided with electoral boundary changes in a number of authorities.
Boundary reviews can change:
- ward names;
- ward boundaries;
- the number of councillors elected;
- how historic results compare with current geography;
- which postcodes or communities sit inside a ward.
That means a political database cannot simply copy last year's ward structure and add new winners on top.
Election night is only the beginning
The most useful lesson from the 2023 elections is not actually about 2023.
It is that election results establish a baseline. After that, political data starts moving again.
| Event | What changes | Why the election baseline matters |
|---|---|---|
| By-election | A ward can change party between scheduled elections. | You can see whether the authority is moving toward or away from the original result. |
| Defection | A councillor changes party or becomes independent. | The council's current seat balance can diverge from what voters elected in 2023. |
| Resignation / vacancy | The working majority can temporarily narrow. | Closely balanced councils can become unstable even before a replacement election. |
| Coalition change | The administration changes without an election. | Seat arithmetic and political control can become two different stories. |
| Reorganisation | The authority itself can be replaced. | Historic political data needs to be mapped to successor organisations. |
Why election results matter to suppliers
An election result is not a procurement forecast.
But a change in political control can alter priorities, Cabinet portfolios, policy emphasis, budget choices and the language used in corporate plans.
For suppliers, the useful approach is to combine political change with other intelligence:
- new political leadership;
- new or revised corporate priorities;
- officer appointments;
- budget decisions;
- funding announcements;
- contract expiry;
- local government reorganisation.
That turns election data from political trivia into organisational context.
What we would do differently now
The original Oscar article focused heavily on percentage changes in seats held by different parties. That was useful immediately after the election, but the more durable value is the underlying history.
A better long-term model is to preserve the election as a dated snapshot and connect it to a live Political Seat Tracker.
That lets a user ask both:
- What happened in May 2023?
- What has happened to that council since?
Those are different questions, and a good political dataset should be able to answer both.
How Oscar uses election data
Oscar's political research links elected members to wards or divisions, political affiliation, political positions and the authorities they represent.
Election results provide a starting point. Monthly maintenance, by-election research and wider council monitoring keep the picture moving after election day.
The result is a political layer that can sit alongside the officer structure, organisational hierarchy and wider intelligence around the authority.