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UK Politics Decoded · GitHub data repo · Documentation · Crime & Justice Tracker

Voting records, committee work and parliamentary activity for every UK MP, built on open data from Parliament.

Search MPs, constituencies, postcodes or parties

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Postcode UB4

The UB4 postcode area sits entirely within one constituency.

Hayes and Harlington

John McDonnellLabour

UB4: Hillingdon (England).

Source data: UKPoliticsDecoded/MP-Lookup-Parliamentary-Activity (raw JSON), generated from UK Parliament open data and ONS boundaries. Dataset updated 7 November 2026.

Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Boundary data contains public sector information licensed under the Open Government Licence v3.0 (ONS). This is derived data and not an official Parliament product.

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