Shop selling lingerie etc., was at 229 London Road, probably from 1954 as shown in the name of the company in this ad from that year:

1954 ad

The shop was there for at least 35 years, as it was listed in the 1989 list of shops and is shown in this clip from 1987:

c1987 – clip from Merton memories photo Mit_​8_​1-32 copyright London Borough of Merton

The Kentucky Fried Chicken shop next door at number 231 was later extended to include number 229.