Renting in Chiswick

Very quick research to see what rent would be in Chiswick .... as expected expensive.
The shop Brioche below is only 74 square metres (which I don't think is anywhere near big enough. and is £3,187 per month.
The other property is on Devonshire Road and is only 30 square metres and is £1,585.
It seems to be about £50 per sq. metre per month.