Lloyds Banking Group has announced plans to axe 200 branches across the UK, with the loss of 3,000 jobs.
The latest closures, due to happen by the end of 2017, were prompted partly by the shock of Brexit.
They come on top of the 200 closures announced in 2014, meaning the group will have shed more than a sixth of the 2,251 UK outlets it had at the beginning of 2015.
The banking giant - which also owns Halifax and the Bank of Scotland - has yet to say which stores will close as part of the latest cuts, and it is not known if any in west London will be affected.
It said there would be no "regional focus", with the stores to be chosen based on local demand.
Three west London stores already closed
Two west London branches of Lloyds and one of Halifax were axed as part of the first round of closures.
The Lloyds banks in Pall Mall and Ickenham , and the Queensway Halifax are among 175 branches across the UK which have already closed or are due to close by October.
The final 25 banks completing the original tranche of closures yet to be announced.
A spokesperson for the banking group said: "There will be no regional focus - we will continue to follow our customers in terms of how, when and where they decide to bank with us.
"Whilst we are reducing our network, we expect to continue to have the biggest branch network in the UK.
"Even after these further closures, more than 90% of our customers will have a branch within five miles of them.
"Whenever the difficult decision to close a branch is taken, our colleagues and customers will be the first to know."
Closures come amid Brexit 'uncertainty'
The latest closures were announced on Thursday (July 28) despite the group's profits having more than doubled to £2.5bn in the first six months of the year.
The company described the outlook for the UK economy as "uncertain" following the EU referendum, and said a deceleration of growth "seems likely".
It also quoted changing customer behaviour, including the growth of online banking, as a factor for its decision.
