The Longley building houses Alan Bennett and one other.
Added after comments
Yes, it is Fanny Waterman, inspiration behind the International Pianoforte Competition, founded in 1961. She was awarded the OBE in 1971 and the CBE, for services to music, in 2000.
Merel Jackson remembers Longley's when it was a furniture store.... "I bought my dining suite, easy chairs and bedroom suite (headboard £12 extra) there in 1954. The building is on the corner of Land's Lane and Albion Place and is indeed a Pret a Manger