Hanle Arms. Hornsey Road N19
The name 'Hanle Arms' has been removed from everywhere but the elaborate iron mongery above the corner door there.
The camera north london pub guide lists it as "Hanley Arms" (with a 'Y') which is probably correct.
It was boarded up for a long time, and then mysteriously some lights were on inside as if it was about to re-open. But eventually it has re-opened as...
'Masjid -e-Yusuf' mosque.
The Hornsey Road blog has a write up about it including finding a picture of the inside of the mosque.