Constituency profile

Bromley and Biggin Hill

London · Borough constituency · Bromley borough

Peter Fortune MP
Sitting MP

Peter Fortune

Conservative

First elected July 2024

Current PollCheck projection

Region & type
London
Borough constituency, Bromley council
Last 5 GE winners
CCCCC
Conservative 5/5
EU referendum 2016
51.3% Leave
UK average 51.9%; -0.6pp below mean
Current outlook
Conservative +1.5pp
vs Reform UK 32.1%
LondonBrexit-marginalGraduate-heavy

Who lives in Bromley and Biggin Hill? Constituency demographics

From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.

Leave vote 2016
51.3%
UK average ~52%
Degree or above
42.5%
UK average ~34%
No qualifications
13.0%
UK average ~18%
Owner-occupied
72.1%
UK average ~63%
Renting (social + private)
27.1%
UK average ~36%
Median age
41.3
UK median ~40
Age 65+
21.6%
UK average ~19%
Age 18-34
27.1%
UK average ~28%

How did Bromley and Biggin Hill vote in 2024 and how would it vote now?

2024 vote shares from the HoC Library. Current projection is at the 7-poll average.

2024 general election

Con hold · majority 302 votes (0.6pp) · turnout 66.2%

Current projection

If a general election were held today, at current poll average

Map of Bromley and Biggin Hill

Switch between ward-level 2024 election winners and a demographic view. Ward winners are Britain Elects' / New Statesman modelled estimates with an average ~4pp margin of error per ward. The demographic view splits the seat into small neighbourhoods (around 1,500 residents each, from the 2021 Census). Hover any area for detail.

Council layer (not Westminster)

Bromley and Biggin Hill within Bromley

The Westminster constituency of Bromley and Biggin Hill sits entirely within Bromley Council. Local council elections are a separate ballot from Westminster general elections - the figures below are from the council elections held on Thursday 7 May 2026.

Council overlap

CouncilShare of seatProjection
Bromley
57 LSOAs
100%View projection ›

Most recent council ward results

Latest council winner per ward. Where May 2026 elections happened, those are shown; otherwise the most recent year on the ward’s pre-2026 boundary (via DCLEAPIL, 2014-2024). The "Shift since GE2024" column is only computed for May 2026 results - earlier council votes pre-date the GE, so no directional shift is shown.

Loading ward results...
Ward GE2024 winner Latest council winner Shift since GE2024 Turnout

Projection trajectory

PollCheck's projection for Bromley and Biggin Hill at each of the last 60 GB polls. Hover the chart for the underlying poll details.

Who has won Bromley and Biggin Hill at past general elections?

2024 result is on current boundaries. The 2019 row is the UK Parliament's notional recalculation onto the 2024 boundaries (directly comparable to 2024). The 2010, 2015 and 2017 rows are on the boundaries in force at the time and aren't directly comparable.

Year Result MP Lab Con LD Right (Ref/UKIP) Green Other Majority Turnout
2010predecessorCon holdBob Stewart Beckenham MP14.5%57.9%20.6%3.3% UKIP1.3%2.6%17,78472.0%
2015predecessorCon holdBob Stewart Beckenham MP19.4%57.3%6.9%12.5% UKIP3.8%-18,47172.4%
2017predecessorCon holdBob Stewart Beckenham MP30.1%59.3%7.9%-2.7%-15,08776.0%
2019notionalConservative winnerBob Stewart Beckenham MP, pre-review boundary25.1%54.4%16.0%-3.7%0.8%14,38069.7%
2024Con holdPeter Fortune33.4%34.0%9.3%17.5% Ref5.5%0.2%30266.2%

Bromley and Biggin Hill was created or substantially redrawn by the 2023 boundary review. Pre-2024 rows below are for the predecessor seat Beckenham (the seat that covered most of this area), so vote shares and majorities aren’t directly comparable to the post-2024 figures.

Constituencies most like Bromley and Biggin Hill

Five seats with similar demographic profiles to Bromley and Biggin Hill. Politics shown for context.

What would change this seat?

Move the sliders to set national vote shares. The per-seat projection updates live. Reset returns to the current 7-poll average.

Related

Sources

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