The Green Party now has 23 Lancaster city councillors after winning a by-election in the city.
Andrew Robert Otway was elected in Scotforth East ward after the by-election on Thursday.
The seat was previously held by Labour until Sophie Maddocks resigned for personal reasons over the summer.
The full results were:
JARNELL, Mark Andrew (Labour and Co-operative Party) 241
MARTIN, Malcolm (Liberal Democrats) 66
OTWAY, Andrew Robert (Green Party) 623 Elected
WOOD, Timothy (Conservative Party) 148
The Greens are the largest group on the council with 23 councillors. Labour has 21, there are seven Liberal Democrats, five Conservatives, three Morecambe Bay Independents and two independents.
Councillor Otway is a Scotforth resident who worked at Lancaster Central Library for 30 years before his recent retirement.
He said: "Thank you to all the voters of Scotforth East and to everyone who took the time to chat to about local issues. I have lots of ideas and casework to follow up, and am looking forward to making a difference as one of the councillors for this lovely, friendly part of Lancaster."
Councillor Phillip Black, of Labour, is the council leader having been elected in 2023 for a period of two years.
There is no party in overall control of the council, whose cabinet is made up of a coalition of Labour, Green and Liberal Democrat councillors.
Read more: Greens become largest political group on Lancaster City Council for first time ever - Beyond Radio


Lancaster-Morecambe train services cancelled amid heavy rain warnings
Pair jailed for violent attack on man in Lancaster street
Panjab Warriors interview: "Morecambe FC will never be in danger while we are owners."
Canal charity gets the ‘hump’ as Lancaster Canal bridges suffer more collision damage
Lancaster wills company donates thousands to help local community groups making a difference
Morecambe Bay Curriculum wins top award
Lancaster film director's latest action movie now showing in UK cinemas
Appeal after Jack Russell dog found collapsed in Lancaster
Lancaster food companies announced as finalists in new Taste Lancashire Producer Awards
New student apartments block opens in Lancaster
Former BBC reporter and ex-Heysham shipping chief launch popular maritime podcast
Lancaster children get life-saving advice at 'Crucial Crew' water safety event
Crews tackle house fire in Heysham
Police appeal after 20 motorbike thefts in 30 days in Lancaster and Morecambe area
Truck driver jailed for causing death of six-year-old Lancaster girl
Former Morecambe Football Club co-chairmen break silence after shock resignation from board
Royal Lancaster Infirmary ward closed to visitors due to norovirus outbreak
Morecambe Football Club stalwarts resign from board
Heysham coffee shop couple take over Morecambe craft ale bar
Morecambe seafront cafe reopens

