Brett Rosehill: councillor for Aldenham East, Hertsmere Borough Council

Brett Rosehill is a Reform UK councillor for the Aldenham East ward on Hertsmere Borough Council, according to the council's own published list. Their current term began on 17 February 2020.

Council: Hertsmere Borough Council
Ward: Aldenham East
Party: Reform UK
Term began: 17 February 2020
Official profile: hertsmere.moderngov.co.uk
Source: Hertsmere Borough Council: councillors by ward (modern.gov web service), read 3 November 2026 (saved copy)

How to contact Brett Rosehill

These are the details Hertsmere Borough Council publishes for Brett Rosehill, exactly as published on 3 November 2026:

Email: cllr.brett.rosehill@hertsmere.gov.uk
Phone: 07876 714422
Post: c/o Civic Offices, Elstree Way, Borehamwood, Hertfordshire, WD6 1WA
Official profile: hertsmere.moderngov.co.uk

Who else represents Aldenham East

Lucy Selby Conservative Party

Reform UK on Hertsmere Borough Council

Reform UK holds 2 of the 39 seats on Hertsmere Borough Council. The largest group is Conservative Party, with 15. Seats by party: Conservative Party 15, Labour & Co-operative Party 12, Liberal Democrats 7, Hertsmere First 3, Reform UK 2.

Leaders and post holders on Hertsmere Borough Council

Caroline Clapper Leader of the Reform UK Group
Jeremy Newmark Leader of the Labour & Co-operative Group, Leader of the Council
Parveen Rani Mayor
Marc Amron Leader of the Hertsmere First Group
Chris Shenton Leader of the Liberal Democrat Group, Deputy Leader of the Council
Morris Bright Deputy Mayor
Lynette Sullivan Leader of the Conservative Group

All 39 councillors of Hertsmere Borough Council, by ward and party.

Who has power over Aldenham East

Brett Rosehill sits on Hertsmere Borough Council, at level 3 of the ten levels of power. These are the bodies above Hertsmere, each with its own page:

Hertfordshire County Council
Hertfordshire Constabulary led by Jonathan Ash-Edwards, Andy Prophet
Hertsmere: Sir Oliver Dowden (Conservative) MP
Watford: Matt Turmaine (Labour) MP
UK government and all 650 MPs
United Nations, IMF, G7 and G20

The full ladder of power over Hertsmere, from residents' groups to the G20.

Where this comes from

Hertsmere Borough Council: councillors by ward (modern.gov web service), read 3 November 2026 (saved copy). Published by Hertsmere Borough Council. The page is rebuilt from the official list each time it is read again, so anything the council changes or removes changes here too. Name or seat out of date? Tell us.