Forecasting English Local Election Seat Gains/Losses 2017

by Stephen Fisher

I am planning on forecasting the general election, but first things first. There are local elections this week.

My seat gains/losses forecasts for the English council elections this year are definitely more for curiosity value than to be taken very seriously. They are based on a simple model which uses change in party support in the polls since the equivalent round of elections four years ago to predict seat changes at the national level. The Conservatives are at 46% in the polls; up a massive 15 points on 2013. Labour are down 11 points in the polls since last time; extraordinary for an opposition party. With such big changes in the polls my model inevitably predicts very big net seat tally changes for these parties. But it does not take the electoral geography into account. Many of Labour’s seats are likely to be very safe and the Conservatives might find it hard to recoup many more than the 337 they lost last time.

With that caveat and with more below, my forecasts, together with those from Colin Rallings and Michael Thrasher, are presented in the table below. They also forecast UKIP -105. My modelling approach still cannot manage a sensible UKIP forecast.

 2017 Forecast Range Rallings & Thrasher
Con +430 +190 to +670 +115
Lab -315 -555 to -75 -75
LD -30 -265 to +210 +85

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