藍屋 is read as あいや (aiya) and means indigo dyer.
あいや
aiya
あいぞめや
indigo dyer
あい
dyer's knotweed (Persicaria tinctoria, used to produce indigo dye)
あいのだいがく
Aino University
らんぽうせき
haüyne
こうや
dyer
しばいごや
playhouse
なや
shed
ふろや
bathhouse proprietor
はいおく
dilapidated house
かぶや
stockbroker
じんや
encampment
おろしどんや
wholesaler