Lib Dem business spokesperson Sarah Olney has been a London MP on and off for almost a decade.
Sir James Cleverly resigned from the shadow cabinet on Saturday to run for mayor of London.
The capital is not set to vote on a new mayor until 2028.
If elected, the Conservatives say they would amend the Town and Country Planning Act.
The plans will see the abolition of two-tier government, with district and county councils replaced with single, unitary authorities.
The leader of a Reform-run council says migrants should not be able to come and go from an MoD base.
Leading Tory brands Reform a "cult of personality" but Reform deputy leader says its electoral success has shaken up politics.
Shadow housing secretary Sir James Cleverly pledges to rewrite the London Plan to pave the way for new homes.
The business secretary acknowledges concern about accommodating asylum seekers and housing shortages.
